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Join our dynamic team at reteam, where innovation meets collaboration. We are currently seeking an enthusiastic engineer to contribute to our projects and drive technological advancements within our company.
This position is an excellent opportunity for those looking to grow their careers in a supportive environment.
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Join our dynamic team at reteam, where innovation meets collaboration. We are currently seeking an enthusiastic engineer to contribute to our projects and drive technological advancements within our company.This position is an excellent opportunity for those looking to grow their careers in a supportive environment.
Why Choose Flux?At Flux, we are transforming the hardware landscape by creating the world's first AI Hardware Engineer. Our mission is to democratize access to cutting-edge hardware development and revolutionize global electronics design and manufacturing.About the OpportunityAs a DevOps Engineer at Flux, you will be integral in ensuring the smooth operation of our innovative platform. Your work will encompass a wide range of full-stack systems, impacting various aspects of our service, including billing, authentication, onboarding, and seamless integrations.Your contributions will directly influence user experience, and your role will be crucial in maintaining operational efficiency as Flux continues to scale.Key ResponsibilitiesEnhance the reliability, availability, and operational health of our production systems.Establish observability standards across services, including metrics, logs, and error tracking.Define Service Level Objectives (SLOs) and Service Level Indicators (SLIs) while implementing effective alerting strategies.Collaborate with engineering teams to design robust systems and proactively mitigate operational risks.Develop internal tools to enhance system safety, debugging capabilities, and developer productivity.Manage infrastructure using Pulumi across GCP, AWS, and Firebase.
Company Overview:At Specter, we are pioneering a groundbreaking software-defined control plane tailored for the physical world. Our mission begins with safeguarding American enterprises by providing them with unparalleled insight into their physical assets.We are developing an interconnected hardware-software ecosystem built on advanced multi-modal wireless mesh sensing technology, significantly reducing the cost and time required to deploy sensors by a factor of 10. Our platform aims to serve as the perception engine for a company’s physical presence, facilitating real-time visibility of perimeters and enabling autonomous operations management.Founded by passionate innovators, Xerxes and Philip, who bring experience from leading organizations like Anduril, Tesla, Uber, and the U.S. Special Forces, we are a rapidly expanding team committed to empowering our partners in the evolving landscape of physical AI and robotics.
At HappyRobot, we are pioneering the AI-native operating system designed for the real economy. Our innovative technology bridges the gap between intelligence and actionable insights. By harnessing real-time data, specialized AI workers, and advanced orchestrating intelligence, we empower enterprises to manage intricate, mission-critical operations with true autonomy.Our AI operating system continuously compounds knowledge, optimizes processes, and evolves over time. We are initially focusing on supply chain and large-scale industrial operations, where resilience, speed, and ongoing improvement are paramount. This allows human teams to concentrate on strategic, creative, and high-value tasks.Discover more about our vision in our Manifesto. HappyRobot has successfully raised $62M to date, including our recent $44M Series B funding round in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10—partners committed to our mission of transforming enterprise operations. We are investing this capital into building a world-class team of individuals who possess relentless drive, exceptional problem-solving skills, and a passion for pushing boundaries in a fast-paced, high-intensity environment. If this resonates with you, we invite you to join us at HappyRobot.About the RoleAs a Design Engineer at HappyRobot, you will be at the crossroads of product design and frontend engineering. You will be responsible for shaping our product's aesthetics, functionality, and overall user experience from initial concepts to polished, production-ready interfaces.You will work closely with product managers, designers, and engineers to develop the product in real-time and ensure rapid shipping.If you have a passion for creating beautiful, intuitive interfaces while also valuing performance, maintainability, and user-centric design, this role is perfect for you.What You’ll DoCraft and develop high-quality, user-facing product experiences from start to finish.Convert product ideas and UX concepts into clean, production-ready frontend code.Take ownership of UI patterns, interaction design, and visual quality throughout the product.Collaborate intensively with engineers, designers, and product managers to ensure tight feedback loops.Rapidly prototype, iterate, and ship products, balancing speed and craftsmanship.Contribute to the evolution of our design system and frontend architecture as the product grows.
About AirwallexAirwallex is a revolutionary unified payments and financial platform designed for global enterprises. Leveraging our unique blend of proprietary technology and software, we empower over 200,000 businesses globally, including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN, providing them with comprehensive solutions for managing business accounts, payments, spend management, treasury functions, and embedded finance at a global scale.Founded in Melbourne, we boast a diverse team of over 2,000 innovative professionals across 26 offices worldwide. With a valuation of US$8 billion and support from prominent investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, and Salesforce Ventures, Airwallex is at the forefront of developing the future of global financial platforms. Join us to embark on the most ambitious journey of your career.
Brainbase Labs
Join Us as a Founding Engineer!At Brainbase, we're redefining the workforce landscape with AI Employees, akin to how Retool transformed internal tools.Imagine a world where AI collaborates seamlessly with human teams. Brainbase empowers businesses to develop their own AI workforce.In just one year, we've achieved $XM+ ARR and are on course to surpass $XXM+ soon. Our clientele spans from small and medium businesses to Fortune 50 corporations. We're proudly supported by Y Combinator, 500 Global, and other prestigious investors, including founders from YouTube and HubSpot, as well as notable YC alumni.About the RoleAs a pivotal member of our founding team, you'll play a crucial role in integrating AI into the enterprise landscape: launching innovative features, engaging with users, and fostering a vibrant company culture for future team members.You will collaborate closely with our CEO and founding team, focusing on enhancing our infrastructure (both cloud and on-premise) and refining our proprietary agent system based on user feedback.Who Should Apply?This position may be a perfect fit for you if:Resourceful: You excel in maximizing outcomes with limited resources, whether that be time, finances, or computing power.Resilient: You persist through challenges and only step back when you discover a more effective approach.Decisive: You make sound decisions under pressure, even with incomplete information, and swiftly move on to new challenges.Passionate about Problem-Solving: You thrive on tackling complex puzzles, games, or challenges, regardless of initial proficiency.Fun-Loving: You maintain positivity and uplift those around you, even during tough times.Key RequirementsAlongside the qualities outlined above, we seek candidates with the following qualifications: Essential SkillsLocation: Based in San Francisco or open to relocation.Work Authorization: Must have a valid US work permit (we do not sponsor H1-Bs; OPTs are acceptable).Minimum of 2 years of software engineering experience (recent graduates are encouraged to apply; personal projects are valued).Proficiency in Typescript and Python.Familiarity with Large Language Models (LLMs) such as OpenAI API, Langchain, or HuggingFace.
Join Fellow as a Firmware EngineerAt Fellow, our mission is to empower coffee enthusiasts to brew exceptional coffee at home. We go beyond offering beautifully designed kettles and grinders; we are a brand immersed in innovation, community, and culture. We believe that great coffee is about the entire experience—the ritual and the connections made along the way.We are seeking a Firmware Engineer to lead the design, development, and maintenance of robust and scalable user interface (UI) and communication firmware for our Internet of Things (IoT) platform. This position is based in our San Francisco office, where you will collaborate with a talented team while being in-office four days a week.
Join datacurve, a rapidly growing company, as we expand our innovative gamified data collection platform, Shipd. This platform transforms the data gathering process into an engaging experience with quests, bounties, and challenges, making it the ultimate developer and gamification experience. As we scale from a dedicated 6-person engineering team to a robust group of 12-15 engineers, we are seeking an Engineering Manager to lead this growth, maintain high technical quality, and actively contribute to the development of systems that will propel us beyond $70M in annual recurring revenue (ARR).In this pivotal role, you will code, design systems, and navigate technical trade-offs while ensuring the engineering team maintains its velocity. You will also be responsible for establishing the structure, processes, hiring standards, and culture that will define our next growth phase.
About the TeamThe IT Systems Operations team is crucial in connecting Security, Engineering, and Employee Technology platforms, ensuring that employee-facing systems, identity workflows, and enterprise applications operate smoothly and reliably as the organization grows.In addition to implementation, the team creates structured operating patterns that guarantee platform changes, access models, integrations, and lifecycle workflows evolve safely and consistently throughout the enterprise environment.About the RoleAs an IT Solutions Engineer, you will take ownership of identity-connected enterprise SaaS platforms and system change controls to uphold OpenAI’s compliance standards. Your responsibilities will include ensuring that production configurations, access models, and platform changes are compliant, auditable, and operated through defined controls. You will manage and operationalize controlled system and workflow changes across various identity platforms, SaaS applications, collaboration tools, and enterprise infrastructure.Collaboration with Security, Platform Engineering, and IT Support Operations is essential, as you will:Ensure consistent behavior of identity and access workflows across systemsImplement structured rollout and configuration practices for enterprise applicationsEnhance visibility and traceability of system changes affecting employee workflowsTranslate operational requirements into durable automation and policy-aligned implementationsSuccess in this position requires not only strong engineering skills but also sound operational judgment, meticulous documentation practices, and effective cross-functional collaboration.In this role, you will:Enterprise SaaS & Identity Platform OwnershipManage administration and operational stewardship of enterprise SaaS and identity-connected platforms, ensuring configuration integrity, access governance, and compliance with established control requirements.Oversee onboarding, access modification, and offboarding workflows aligned to standardized entitlement models.Guarantee reliable propagation of lifecycle events across downstream systems and maintain an accurate, auditable access state.
About GigaenergyAt Gigaenergy, we are pioneering the development, construction, and operation of AI-driven energy infrastructure that powers today's world. Our goal is to revolutionize the energy infrastructure experience for good. With a vertically integrated model encompassing site origination, development, infrastructure manufacturing, and participation in power markets, we are positioned to deliver projects at an unprecedented pace. Founded in Texas, we collaborate with AI hyperscalers, data center operators, and other energy infrastructure teams to accelerate project timelines.Why Join UsAccelerated Pace: Take charge of projects that progress faster than any other in the industry.Significant Impact: Be the driving force behind transforming concepts into actionable contracts and secured permits.Exceptional Team: Collaborate with a top-tier group of engineers and builders shaping the future of AI infrastructure. What You'll DoAs a Project Engineer, you will be instrumental in bringing Gigaenergy’s electrical infrastructure initiatives to fruition. Your role involves converting customer and utility needs into comprehensive site plans and electrical designs, ensuring our systems achieve performance, safety, and budgetary objectives. You will engage cross-functionally with utilities, suppliers, electricians, and internal teams to manage projects from the initial concept to full deployment.This position is ideal for individuals who thrive in fast-paced settings, enjoy hands-on problem-solving in the field, and possess the technical expertise to confidently engage in medium-voltage design discussions with partners and vendors.Where You'll WorkThis position is based at our office in San Francisco, where you will be expected to work full-time, with the exception of our bi-weekly Work From Home Fridays.
Join Our Team at GridwareGridware, a pioneering technology firm based in San Francisco, is committed to enhancing and safeguarding the electrical grid. We have developed an innovative class of grid management known as Active Grid Response (AGR), which focuses on monitoring critical electrical, physical, and environmental parameters that influence grid reliability and safety. Our state-of-the-art AGR platform employs high-precision sensors to identify potential issues at an early stage, facilitating proactive maintenance and fault mitigation. This holistic approach promotes safety, minimizes outages, and ensures optimal grid performance. Backed by notable climate-tech and Silicon Valley investors, we are on a mission to redefine grid management. For more details, visit www.Gridware.io.Role OverviewWe are seeking a detail-oriented, technically proficient Senior IT Engineer to join our dynamic team. In this pivotal role, you will spearhead network architecture and facility build-outs, champion IT compliance initiatives, and oversee cross-functional projects from inception to successful completion. This is a highly impactful position ideal for a professional who excels in building robust systems, enforcing critical standards, and delivering complex technical projects within a fast-paced, growth-oriented environment.
About KreaAt Krea, we are at the forefront of developing innovative AI-driven creative tools designed to enhance artistic expression.Our commitment lies in making AI accessible and manageable for creative professionals. We aim to create tools that enhance human creativity rather than replace it.We view AI as a revolutionary medium that facilitates self-expression across diverse formats, including text, images, video, sound, and even 3D content. Our goal is to create smarter, more intuitive tools that effectively leverage this medium.Your RoleDesign, implement, deploy, and maintain robust private APIs for our core web and mobile applications.Create and optimize database models.Troubleshoot system issues, particularly those related to HTTP/3 and client-side connections.Enhance database and infrastructure performance through effective caching solutions and improved connection pooling.Analyze and identify bottlenecks in HTTP/WebSocket requests to facilitate real-time image and video generation.Advance observability, monitoring, and alerting capabilities for our services to ensure effective incident management.Scale our services through architectural advancements and infrastructure enhancements.Open-source significant innovations derived from our product development efforts.Refine software development processes to create web-native and AI-native creative tools.Elevate our product by incorporating enterprise-level features such as Audit Logs, SAML/SSO, and SCIM.Our Technology StackJavaScript/TypeScriptSvelte & SvelteKitNode.js, PostgreSQL, and RedisWebSocketsManaged Kubernetes clusters on AWSMonitoring via Axiom/HyperDX/Prometheus/OpenTelemetryCollaborative tools: GitHub, Slack, Notion
Join Our Team as a Software EngineerIn the rapidly evolving landscape of software development, AI is revolutionizing the way we approach coding and security. At Corridor, we are at the forefront of this transformation, empowering developers to enhance the security of their AI applications.Our team comprises experts who have navigated the intersection of AI and cybersecurity, leading initiatives at some of the largest global corporations, influencing cybersecurity policy within the US government, and contributing groundbreaking AI research at Stanford. As we continue to expand, we are on the lookout for driven and skilled engineers to join our dynamic team.
Join the Revolution at Delphi!At Delphi, we are transforming the way knowledge is shared by introducing a groundbreaking medium for human interaction: interactive digital minds that engage, educate, and guide users.Unlike the static profiles and endless feeds of the internet, Delphi offers a dynamic, interactive layer of identity that encapsulates your voice, insights, and reasoning in every conversation—allowing people to experience your thought process.Our goal is to democratize access to Delphi, enabling anyone to create a digital mind that serves as an always-on profile, answering questions on your behalf.Our mission is audacious:To make human wisdom abundant, personalized, and easily discoverable.To preserve legacies, unlock opportunities, and amplify brilliance across generations.To position Delphi as everyone's living profile that showcases your knowledge.We are honored to be trusted by thousands of brilliant minds, including Simon Sinek and Arnold Schwarzenegger (interact with them here). In the past six months, we have tripled our revenue, user base, and interactions organically through word-of-mouth, and we are set to accelerate this growth.Our investors include notable names such as Sequoia Capital, Founders Fund, and Michael Ovitz, among others. Our team comprises founders with successful exits and top-tier builders from Apple, Spotify, and Substack.Discover more about Delphi and this role by connecting with the CEO’s digital mind here
Role OverviewJoin OpenEvidence as a Fullstack Software Engineer, where you will take ideas from concept to execution, driven by the desire to create impactful solutions that will be utilized and appreciated by millions of discerning users globally.We seek exceptional builders who thrive beyond traditional boundaries. Our engineers engage across diverse products and projects, taking full ownership of their work to maximize impact.About OpenEvidenceOpenEvidence is the leading medical AI platform, recognized globally. In just over a year, we’ve achieved over 40% adoption among US clinicians, driven by product excellence and word-of-mouth referrals. With a valuation of $12 billion and a 30-member engineering team composed of talent from MIT, Harvard, and Stanford, we believe that transformative products stem from a small, dedicated group of autonomous builders who are empowered to take ownership and act swiftly. As we expand our team, we are poised to establish the standard platform for medical AI.If you are a top-tier engineer or scientist eager to shape the forefront of technology and deliver tangible outcomes that can positively influence hundreds of millions of lives, we want to connect with you.Our CultureWe believe in engaging at a world-class level. The journey from 0 to 1 and from 1 to 1000 is akin to a professional sport, where unwavering excellence is our benchmark. We understand that pioneering technologies require complete ownership. Significant achievements occur when individuals commit to making them happen.Who You AreIf your goal is simply to complete tasks from 9 to 5, this position is not for you. If you prefer academic writing, this role isn’t for you either. However, if you are ready to dive in, embrace challenges, and create something from scratch that has a direct impact on countless lives and drives substantial revenue, then you may be the right fit.The ideal candidate is a talented builder—intelligent, ambitious, resourceful, self-directed, meticulous, driven, and humble. Sound rare? It is, which is why we have only found 30 like-minded individuals, and we're eager to discover more.Work EnvironmentAll full-time engineering roles require in-person attendance five days a week in San Francisco or Miami.
Thinking Machines Lab
At Thinking Machines Lab, our vision is to enhance human potential by advancing collaborative general intelligence. We are dedicated to creating an inclusive future where everyone can harness AI's capabilities tailored to their unique aspirations.Our team comprises scientists, engineers, and innovators behind some of the most impactful AI solutions, including ChatGPT and Character.ai, as well as open-source projects like PyTorch and Segment Anything.About the RoleWe are seeking a talented Software Engineer to architect, develop, and maintain the GPU supercomputing infrastructure essential for large-scale AI training and inference. Your contributions will ensure high-performance, reliable, and cost-effective computing resources, enabling our users and researchers to achieve rapid advancements at scale.This is an "evergreen role," open for ongoing interest. We receive numerous applications, and while an immediate fit may not always be available, we encourage you to apply. We actively review applications and reach out when new opportunities arise. Reapplications are welcome after six months, and we also post specific roles for unique projects or teams.What You’ll DoAutomate and manage large GPU clusters, handling provisioning, imaging, and capacity strategy.Develop software that simplifies cluster management, providing a cohesive interface for training and inference tasks.Enhance scheduling and orchestration frameworks (Kubernetes, Slurm, or similar) for optimized resource allocation, preemption, and multi-tenancy management.Monitor and improve operational efficiency, focusing on speed, reliability, and error recovery mechanisms.Design robust storage solutions for datasets, checkpoints, and logs, ensuring clear data retention and lineage.Collaborate with researchers to facilitate large-scale experiments, offering guidance on parallelism and performance considerations.
Join Collate as a Frontend Software EngineerAt Collate, we are revolutionizing the life sciences sector with our innovative AI document generation platform. Our mission is to expedite the delivery of life-saving innovations to patients by automating complex paperwork. As a seamless end-to-end solution, we support every stage of drug, diagnostic, and medical device development, from initial concept to market launch.Led by our visionary CEO, Surbhi Sarna, a former General Partner at Y Combinator, and our CTO, Nate Smith, a former Visiting Partner at Y Combinator, we have assembled a team of elite professionals with experience from top-tier companies like Google and Amazon. Our small team has garnered over $30M in seed funding from esteemed investors including Redpoint and First Round Capital, positioning us for rapid growth and impact in the healthcare field.As a Frontend Software Engineer, you will play a pivotal role in shaping the user experience at Collate. Your innovative contributions will translate complex AI technology into intuitive and user-friendly tools for doctors, patients, and researchers. Your work will directly influence the product experiences that are critical for improving patient outcomes.You will be working on a predominantly frontend-focused enterprise workflow application, ensuring the interface is clear, reliable, and trustworthy. This is a unique opportunity to design the intersection where transformative technology meets real-world users.Our Cutting-Edge Tech StackWe utilize modern technologies including TypeScript, React, and Tailwind CSS for our frontend development, creating a dynamic environment for innovation and collaboration.
Airtable is the leading no-code app platform that empowers individuals closest to their work to expedite critical business processes. Over 500,000 organizations, including 80% of the Fortune 100, depend on Airtable to revolutionize their workflows.At Airtable, we are dedicated to democratizing software development—enabling anyone to create powerful, adaptable tools without needing to code. Our transition to an AI-native platform allows customers to generate complete applications and seamlessly integrate AI agents into their operations. Data engineering is pivotal in this transformation, providing the insights necessary for our teams to enhance user experiences, gauge agent effectiveness, and assess business performance on a large scale.As a Data Engineer at Airtable, you will play a vital role in our data engineering initiatives. You'll design and manage essential data pipelines that facilitate informed decision-making, collaborate with company leaders to develop scalable data solutions, and implement innovative alerting and visualization systems.
Join us at Lever, a leading innovator in hiring software, as a Software Engineer in our vibrant San Francisco office. This role is an opportunity to become part of a dedicated team committed to enhancing talent acquisition through cutting-edge technology.At Lever, we pride ourselves on our culture of collaboration and continuous improvement. We are seeking passionate individuals who share our dedication to minimizing downtime and fostering a supportive environment. You will be integral in driving our values forward in our new Toronto office while contributing to our mission of transforming the hiring experience.THE TEAMIn our engineering team, we prioritize knowledge sharing and peer feedback, ensuring everyone grows and thrives. We are enthusiastic about automation, innovative chatbots, and providing exceptional user experiences. Your contributions will shape our approach to talent acquisition as we expand.THE TECH STACKLever utilizes our proprietary open-source MVC framework, Derby, which employs Operational Transformation for real-time data synchronization—similar to the technology behind Google Docs. Our infrastructure heavily relies on AWS, Docker, Node, MongoDB, ElasticSearch, and Redis. Tools like Hubot facilitate our deployment processes while Grafana provides insights into our systems. We emphasize automation and version control, utilizing Terraform and Chef to ensure consistency.
About CartesiaAt Cartesia, we are on a mission to create the next generation of artificial intelligence—smart, interactive systems that function seamlessly in any environment. Currently, the most advanced models struggle to process and analyze extensive streams of audio, video, and text over extended periods—1 billion text tokens, 10 billion audio tokens, and 1 trillion video tokens—especially when integrated directly on devices.We are at the forefront of developing the model architectures that will enable this innovation. Our founding team, which originated from the Stanford AI Lab, is responsible for the creation of State Space Models (SSMs), a groundbreaking approach for training efficient, large-scale foundational models. Our team merges deep technical knowledge in model development and systems engineering with a product engineering group focused on design, allowing us to create and deliver pioneering models and user experiences.Supported by top-tier investors such as Index Ventures, Lightspeed Venture Partners, and others, along with guidance from industry-leading advisors and over 90 angel investors, we are well-equipped to reshape the landscape of AI.About the RoleWe are seeking a skilled Software Engineer to join our team and help propel our vision of real-time, multimodal intelligence.Your ImpactDevelop and implement a low-latency, scalable, and dependable model inference and serving framework for our innovative SSM foundational models.Collaborate with our research and product engineering teams to translate cutting-edge research into extraordinary products.Establish robust, high-quality data processing and evaluation infrastructure for training foundational models.Enjoy significant autonomy in shaping our product direction and influencing how advanced AI technologies are utilized across various devices and applications.What You BringGiven the complexity of the challenges we tackle, we prioritize strong engineering capabilities at Cartesia.Proficient engineering skills with the ability to navigate intricate codebases and monorepos.A keen eye for detail, ensuring the production of clean, maintainable code.Adaptability to new technologies and quick proficiency with our tech stack, which includes Go and Python for backend development and Next.js for frontend.Experience in building large-scale distributed systems that require high performance, reliability, and observability.
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Join our dynamic team at reteam, where innovation meets collaboration. We are currently seeking an enthusiastic engineer to contribute to our projects and drive technological advancements within our company.This position is an excellent opportunity for those looking to grow their careers in a supportive environment.
Why Choose Flux?At Flux, we are transforming the hardware landscape by creating the world's first AI Hardware Engineer. Our mission is to democratize access to cutting-edge hardware development and revolutionize global electronics design and manufacturing.About the OpportunityAs a DevOps Engineer at Flux, you will be integral in ensuring the smooth operation of our innovative platform. Your work will encompass a wide range of full-stack systems, impacting various aspects of our service, including billing, authentication, onboarding, and seamless integrations.Your contributions will directly influence user experience, and your role will be crucial in maintaining operational efficiency as Flux continues to scale.Key ResponsibilitiesEnhance the reliability, availability, and operational health of our production systems.Establish observability standards across services, including metrics, logs, and error tracking.Define Service Level Objectives (SLOs) and Service Level Indicators (SLIs) while implementing effective alerting strategies.Collaborate with engineering teams to design robust systems and proactively mitigate operational risks.Develop internal tools to enhance system safety, debugging capabilities, and developer productivity.Manage infrastructure using Pulumi across GCP, AWS, and Firebase.
Company Overview:At Specter, we are pioneering a groundbreaking software-defined control plane tailored for the physical world. Our mission begins with safeguarding American enterprises by providing them with unparalleled insight into their physical assets.We are developing an interconnected hardware-software ecosystem built on advanced multi-modal wireless mesh sensing technology, significantly reducing the cost and time required to deploy sensors by a factor of 10. Our platform aims to serve as the perception engine for a company’s physical presence, facilitating real-time visibility of perimeters and enabling autonomous operations management.Founded by passionate innovators, Xerxes and Philip, who bring experience from leading organizations like Anduril, Tesla, Uber, and the U.S. Special Forces, we are a rapidly expanding team committed to empowering our partners in the evolving landscape of physical AI and robotics.
At HappyRobot, we are pioneering the AI-native operating system designed for the real economy. Our innovative technology bridges the gap between intelligence and actionable insights. By harnessing real-time data, specialized AI workers, and advanced orchestrating intelligence, we empower enterprises to manage intricate, mission-critical operations with true autonomy.Our AI operating system continuously compounds knowledge, optimizes processes, and evolves over time. We are initially focusing on supply chain and large-scale industrial operations, where resilience, speed, and ongoing improvement are paramount. This allows human teams to concentrate on strategic, creative, and high-value tasks.Discover more about our vision in our Manifesto. HappyRobot has successfully raised $62M to date, including our recent $44M Series B funding round in September 2025. Our esteemed investors include Y Combinator (YC), Andreessen Horowitz (a16z), and Base10—partners committed to our mission of transforming enterprise operations. We are investing this capital into building a world-class team of individuals who possess relentless drive, exceptional problem-solving skills, and a passion for pushing boundaries in a fast-paced, high-intensity environment. If this resonates with you, we invite you to join us at HappyRobot.About the RoleAs a Design Engineer at HappyRobot, you will be at the crossroads of product design and frontend engineering. You will be responsible for shaping our product's aesthetics, functionality, and overall user experience from initial concepts to polished, production-ready interfaces.You will work closely with product managers, designers, and engineers to develop the product in real-time and ensure rapid shipping.If you have a passion for creating beautiful, intuitive interfaces while also valuing performance, maintainability, and user-centric design, this role is perfect for you.What You’ll DoCraft and develop high-quality, user-facing product experiences from start to finish.Convert product ideas and UX concepts into clean, production-ready frontend code.Take ownership of UI patterns, interaction design, and visual quality throughout the product.Collaborate intensively with engineers, designers, and product managers to ensure tight feedback loops.Rapidly prototype, iterate, and ship products, balancing speed and craftsmanship.Contribute to the evolution of our design system and frontend architecture as the product grows.
About AirwallexAirwallex is a revolutionary unified payments and financial platform designed for global enterprises. Leveraging our unique blend of proprietary technology and software, we empower over 200,000 businesses globally, including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN, providing them with comprehensive solutions for managing business accounts, payments, spend management, treasury functions, and embedded finance at a global scale.Founded in Melbourne, we boast a diverse team of over 2,000 innovative professionals across 26 offices worldwide. With a valuation of US$8 billion and support from prominent investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, and Salesforce Ventures, Airwallex is at the forefront of developing the future of global financial platforms. Join us to embark on the most ambitious journey of your career.
Brainbase Labs
Join Us as a Founding Engineer!At Brainbase, we're redefining the workforce landscape with AI Employees, akin to how Retool transformed internal tools.Imagine a world where AI collaborates seamlessly with human teams. Brainbase empowers businesses to develop their own AI workforce.In just one year, we've achieved $XM+ ARR and are on course to surpass $XXM+ soon. Our clientele spans from small and medium businesses to Fortune 50 corporations. We're proudly supported by Y Combinator, 500 Global, and other prestigious investors, including founders from YouTube and HubSpot, as well as notable YC alumni.About the RoleAs a pivotal member of our founding team, you'll play a crucial role in integrating AI into the enterprise landscape: launching innovative features, engaging with users, and fostering a vibrant company culture for future team members.You will collaborate closely with our CEO and founding team, focusing on enhancing our infrastructure (both cloud and on-premise) and refining our proprietary agent system based on user feedback.Who Should Apply?This position may be a perfect fit for you if:Resourceful: You excel in maximizing outcomes with limited resources, whether that be time, finances, or computing power.Resilient: You persist through challenges and only step back when you discover a more effective approach.Decisive: You make sound decisions under pressure, even with incomplete information, and swiftly move on to new challenges.Passionate about Problem-Solving: You thrive on tackling complex puzzles, games, or challenges, regardless of initial proficiency.Fun-Loving: You maintain positivity and uplift those around you, even during tough times.Key RequirementsAlongside the qualities outlined above, we seek candidates with the following qualifications: Essential SkillsLocation: Based in San Francisco or open to relocation.Work Authorization: Must have a valid US work permit (we do not sponsor H1-Bs; OPTs are acceptable).Minimum of 2 years of software engineering experience (recent graduates are encouraged to apply; personal projects are valued).Proficiency in Typescript and Python.Familiarity with Large Language Models (LLMs) such as OpenAI API, Langchain, or HuggingFace.
Join Fellow as a Firmware EngineerAt Fellow, our mission is to empower coffee enthusiasts to brew exceptional coffee at home. We go beyond offering beautifully designed kettles and grinders; we are a brand immersed in innovation, community, and culture. We believe that great coffee is about the entire experience—the ritual and the connections made along the way.We are seeking a Firmware Engineer to lead the design, development, and maintenance of robust and scalable user interface (UI) and communication firmware for our Internet of Things (IoT) platform. This position is based in our San Francisco office, where you will collaborate with a talented team while being in-office four days a week.
Join datacurve, a rapidly growing company, as we expand our innovative gamified data collection platform, Shipd. This platform transforms the data gathering process into an engaging experience with quests, bounties, and challenges, making it the ultimate developer and gamification experience. As we scale from a dedicated 6-person engineering team to a robust group of 12-15 engineers, we are seeking an Engineering Manager to lead this growth, maintain high technical quality, and actively contribute to the development of systems that will propel us beyond $70M in annual recurring revenue (ARR).In this pivotal role, you will code, design systems, and navigate technical trade-offs while ensuring the engineering team maintains its velocity. You will also be responsible for establishing the structure, processes, hiring standards, and culture that will define our next growth phase.
About the TeamThe IT Systems Operations team is crucial in connecting Security, Engineering, and Employee Technology platforms, ensuring that employee-facing systems, identity workflows, and enterprise applications operate smoothly and reliably as the organization grows.In addition to implementation, the team creates structured operating patterns that guarantee platform changes, access models, integrations, and lifecycle workflows evolve safely and consistently throughout the enterprise environment.About the RoleAs an IT Solutions Engineer, you will take ownership of identity-connected enterprise SaaS platforms and system change controls to uphold OpenAI’s compliance standards. Your responsibilities will include ensuring that production configurations, access models, and platform changes are compliant, auditable, and operated through defined controls. You will manage and operationalize controlled system and workflow changes across various identity platforms, SaaS applications, collaboration tools, and enterprise infrastructure.Collaboration with Security, Platform Engineering, and IT Support Operations is essential, as you will:Ensure consistent behavior of identity and access workflows across systemsImplement structured rollout and configuration practices for enterprise applicationsEnhance visibility and traceability of system changes affecting employee workflowsTranslate operational requirements into durable automation and policy-aligned implementationsSuccess in this position requires not only strong engineering skills but also sound operational judgment, meticulous documentation practices, and effective cross-functional collaboration.In this role, you will:Enterprise SaaS & Identity Platform OwnershipManage administration and operational stewardship of enterprise SaaS and identity-connected platforms, ensuring configuration integrity, access governance, and compliance with established control requirements.Oversee onboarding, access modification, and offboarding workflows aligned to standardized entitlement models.Guarantee reliable propagation of lifecycle events across downstream systems and maintain an accurate, auditable access state.
About GigaenergyAt Gigaenergy, we are pioneering the development, construction, and operation of AI-driven energy infrastructure that powers today's world. Our goal is to revolutionize the energy infrastructure experience for good. With a vertically integrated model encompassing site origination, development, infrastructure manufacturing, and participation in power markets, we are positioned to deliver projects at an unprecedented pace. Founded in Texas, we collaborate with AI hyperscalers, data center operators, and other energy infrastructure teams to accelerate project timelines.Why Join UsAccelerated Pace: Take charge of projects that progress faster than any other in the industry.Significant Impact: Be the driving force behind transforming concepts into actionable contracts and secured permits.Exceptional Team: Collaborate with a top-tier group of engineers and builders shaping the future of AI infrastructure. What You'll DoAs a Project Engineer, you will be instrumental in bringing Gigaenergy’s electrical infrastructure initiatives to fruition. Your role involves converting customer and utility needs into comprehensive site plans and electrical designs, ensuring our systems achieve performance, safety, and budgetary objectives. You will engage cross-functionally with utilities, suppliers, electricians, and internal teams to manage projects from the initial concept to full deployment.This position is ideal for individuals who thrive in fast-paced settings, enjoy hands-on problem-solving in the field, and possess the technical expertise to confidently engage in medium-voltage design discussions with partners and vendors.Where You'll WorkThis position is based at our office in San Francisco, where you will be expected to work full-time, with the exception of our bi-weekly Work From Home Fridays.
Join Our Team at GridwareGridware, a pioneering technology firm based in San Francisco, is committed to enhancing and safeguarding the electrical grid. We have developed an innovative class of grid management known as Active Grid Response (AGR), which focuses on monitoring critical electrical, physical, and environmental parameters that influence grid reliability and safety. Our state-of-the-art AGR platform employs high-precision sensors to identify potential issues at an early stage, facilitating proactive maintenance and fault mitigation. This holistic approach promotes safety, minimizes outages, and ensures optimal grid performance. Backed by notable climate-tech and Silicon Valley investors, we are on a mission to redefine grid management. For more details, visit www.Gridware.io.Role OverviewWe are seeking a detail-oriented, technically proficient Senior IT Engineer to join our dynamic team. In this pivotal role, you will spearhead network architecture and facility build-outs, champion IT compliance initiatives, and oversee cross-functional projects from inception to successful completion. This is a highly impactful position ideal for a professional who excels in building robust systems, enforcing critical standards, and delivering complex technical projects within a fast-paced, growth-oriented environment.
About KreaAt Krea, we are at the forefront of developing innovative AI-driven creative tools designed to enhance artistic expression.Our commitment lies in making AI accessible and manageable for creative professionals. We aim to create tools that enhance human creativity rather than replace it.We view AI as a revolutionary medium that facilitates self-expression across diverse formats, including text, images, video, sound, and even 3D content. Our goal is to create smarter, more intuitive tools that effectively leverage this medium.Your RoleDesign, implement, deploy, and maintain robust private APIs for our core web and mobile applications.Create and optimize database models.Troubleshoot system issues, particularly those related to HTTP/3 and client-side connections.Enhance database and infrastructure performance through effective caching solutions and improved connection pooling.Analyze and identify bottlenecks in HTTP/WebSocket requests to facilitate real-time image and video generation.Advance observability, monitoring, and alerting capabilities for our services to ensure effective incident management.Scale our services through architectural advancements and infrastructure enhancements.Open-source significant innovations derived from our product development efforts.Refine software development processes to create web-native and AI-native creative tools.Elevate our product by incorporating enterprise-level features such as Audit Logs, SAML/SSO, and SCIM.Our Technology StackJavaScript/TypeScriptSvelte & SvelteKitNode.js, PostgreSQL, and RedisWebSocketsManaged Kubernetes clusters on AWSMonitoring via Axiom/HyperDX/Prometheus/OpenTelemetryCollaborative tools: GitHub, Slack, Notion
Join Our Team as a Software EngineerIn the rapidly evolving landscape of software development, AI is revolutionizing the way we approach coding and security. At Corridor, we are at the forefront of this transformation, empowering developers to enhance the security of their AI applications.Our team comprises experts who have navigated the intersection of AI and cybersecurity, leading initiatives at some of the largest global corporations, influencing cybersecurity policy within the US government, and contributing groundbreaking AI research at Stanford. As we continue to expand, we are on the lookout for driven and skilled engineers to join our dynamic team.
Join the Revolution at Delphi!At Delphi, we are transforming the way knowledge is shared by introducing a groundbreaking medium for human interaction: interactive digital minds that engage, educate, and guide users.Unlike the static profiles and endless feeds of the internet, Delphi offers a dynamic, interactive layer of identity that encapsulates your voice, insights, and reasoning in every conversation—allowing people to experience your thought process.Our goal is to democratize access to Delphi, enabling anyone to create a digital mind that serves as an always-on profile, answering questions on your behalf.Our mission is audacious:To make human wisdom abundant, personalized, and easily discoverable.To preserve legacies, unlock opportunities, and amplify brilliance across generations.To position Delphi as everyone's living profile that showcases your knowledge.We are honored to be trusted by thousands of brilliant minds, including Simon Sinek and Arnold Schwarzenegger (interact with them here). In the past six months, we have tripled our revenue, user base, and interactions organically through word-of-mouth, and we are set to accelerate this growth.Our investors include notable names such as Sequoia Capital, Founders Fund, and Michael Ovitz, among others. Our team comprises founders with successful exits and top-tier builders from Apple, Spotify, and Substack.Discover more about Delphi and this role by connecting with the CEO’s digital mind here
Role OverviewJoin OpenEvidence as a Fullstack Software Engineer, where you will take ideas from concept to execution, driven by the desire to create impactful solutions that will be utilized and appreciated by millions of discerning users globally.We seek exceptional builders who thrive beyond traditional boundaries. Our engineers engage across diverse products and projects, taking full ownership of their work to maximize impact.About OpenEvidenceOpenEvidence is the leading medical AI platform, recognized globally. In just over a year, we’ve achieved over 40% adoption among US clinicians, driven by product excellence and word-of-mouth referrals. With a valuation of $12 billion and a 30-member engineering team composed of talent from MIT, Harvard, and Stanford, we believe that transformative products stem from a small, dedicated group of autonomous builders who are empowered to take ownership and act swiftly. As we expand our team, we are poised to establish the standard platform for medical AI.If you are a top-tier engineer or scientist eager to shape the forefront of technology and deliver tangible outcomes that can positively influence hundreds of millions of lives, we want to connect with you.Our CultureWe believe in engaging at a world-class level. The journey from 0 to 1 and from 1 to 1000 is akin to a professional sport, where unwavering excellence is our benchmark. We understand that pioneering technologies require complete ownership. Significant achievements occur when individuals commit to making them happen.Who You AreIf your goal is simply to complete tasks from 9 to 5, this position is not for you. If you prefer academic writing, this role isn’t for you either. However, if you are ready to dive in, embrace challenges, and create something from scratch that has a direct impact on countless lives and drives substantial revenue, then you may be the right fit.The ideal candidate is a talented builder—intelligent, ambitious, resourceful, self-directed, meticulous, driven, and humble. Sound rare? It is, which is why we have only found 30 like-minded individuals, and we're eager to discover more.Work EnvironmentAll full-time engineering roles require in-person attendance five days a week in San Francisco or Miami.
Thinking Machines Lab
At Thinking Machines Lab, our vision is to enhance human potential by advancing collaborative general intelligence. We are dedicated to creating an inclusive future where everyone can harness AI's capabilities tailored to their unique aspirations.Our team comprises scientists, engineers, and innovators behind some of the most impactful AI solutions, including ChatGPT and Character.ai, as well as open-source projects like PyTorch and Segment Anything.About the RoleWe are seeking a talented Software Engineer to architect, develop, and maintain the GPU supercomputing infrastructure essential for large-scale AI training and inference. Your contributions will ensure high-performance, reliable, and cost-effective computing resources, enabling our users and researchers to achieve rapid advancements at scale.This is an "evergreen role," open for ongoing interest. We receive numerous applications, and while an immediate fit may not always be available, we encourage you to apply. We actively review applications and reach out when new opportunities arise. Reapplications are welcome after six months, and we also post specific roles for unique projects or teams.What You’ll DoAutomate and manage large GPU clusters, handling provisioning, imaging, and capacity strategy.Develop software that simplifies cluster management, providing a cohesive interface for training and inference tasks.Enhance scheduling and orchestration frameworks (Kubernetes, Slurm, or similar) for optimized resource allocation, preemption, and multi-tenancy management.Monitor and improve operational efficiency, focusing on speed, reliability, and error recovery mechanisms.Design robust storage solutions for datasets, checkpoints, and logs, ensuring clear data retention and lineage.Collaborate with researchers to facilitate large-scale experiments, offering guidance on parallelism and performance considerations.
Join Collate as a Frontend Software EngineerAt Collate, we are revolutionizing the life sciences sector with our innovative AI document generation platform. Our mission is to expedite the delivery of life-saving innovations to patients by automating complex paperwork. As a seamless end-to-end solution, we support every stage of drug, diagnostic, and medical device development, from initial concept to market launch.Led by our visionary CEO, Surbhi Sarna, a former General Partner at Y Combinator, and our CTO, Nate Smith, a former Visiting Partner at Y Combinator, we have assembled a team of elite professionals with experience from top-tier companies like Google and Amazon. Our small team has garnered over $30M in seed funding from esteemed investors including Redpoint and First Round Capital, positioning us for rapid growth and impact in the healthcare field.As a Frontend Software Engineer, you will play a pivotal role in shaping the user experience at Collate. Your innovative contributions will translate complex AI technology into intuitive and user-friendly tools for doctors, patients, and researchers. Your work will directly influence the product experiences that are critical for improving patient outcomes.You will be working on a predominantly frontend-focused enterprise workflow application, ensuring the interface is clear, reliable, and trustworthy. This is a unique opportunity to design the intersection where transformative technology meets real-world users.Our Cutting-Edge Tech StackWe utilize modern technologies including TypeScript, React, and Tailwind CSS for our frontend development, creating a dynamic environment for innovation and collaboration.
Airtable is the leading no-code app platform that empowers individuals closest to their work to expedite critical business processes. Over 500,000 organizations, including 80% of the Fortune 100, depend on Airtable to revolutionize their workflows.At Airtable, we are dedicated to democratizing software development—enabling anyone to create powerful, adaptable tools without needing to code. Our transition to an AI-native platform allows customers to generate complete applications and seamlessly integrate AI agents into their operations. Data engineering is pivotal in this transformation, providing the insights necessary for our teams to enhance user experiences, gauge agent effectiveness, and assess business performance on a large scale.As a Data Engineer at Airtable, you will play a vital role in our data engineering initiatives. You'll design and manage essential data pipelines that facilitate informed decision-making, collaborate with company leaders to develop scalable data solutions, and implement innovative alerting and visualization systems.
Join us at Lever, a leading innovator in hiring software, as a Software Engineer in our vibrant San Francisco office. This role is an opportunity to become part of a dedicated team committed to enhancing talent acquisition through cutting-edge technology.At Lever, we pride ourselves on our culture of collaboration and continuous improvement. We are seeking passionate individuals who share our dedication to minimizing downtime and fostering a supportive environment. You will be integral in driving our values forward in our new Toronto office while contributing to our mission of transforming the hiring experience.THE TEAMIn our engineering team, we prioritize knowledge sharing and peer feedback, ensuring everyone grows and thrives. We are enthusiastic about automation, innovative chatbots, and providing exceptional user experiences. Your contributions will shape our approach to talent acquisition as we expand.THE TECH STACKLever utilizes our proprietary open-source MVC framework, Derby, which employs Operational Transformation for real-time data synchronization—similar to the technology behind Google Docs. Our infrastructure heavily relies on AWS, Docker, Node, MongoDB, ElasticSearch, and Redis. Tools like Hubot facilitate our deployment processes while Grafana provides insights into our systems. We emphasize automation and version control, utilizing Terraform and Chef to ensure consistency.
About CartesiaAt Cartesia, we are on a mission to create the next generation of artificial intelligence—smart, interactive systems that function seamlessly in any environment. Currently, the most advanced models struggle to process and analyze extensive streams of audio, video, and text over extended periods—1 billion text tokens, 10 billion audio tokens, and 1 trillion video tokens—especially when integrated directly on devices.We are at the forefront of developing the model architectures that will enable this innovation. Our founding team, which originated from the Stanford AI Lab, is responsible for the creation of State Space Models (SSMs), a groundbreaking approach for training efficient, large-scale foundational models. Our team merges deep technical knowledge in model development and systems engineering with a product engineering group focused on design, allowing us to create and deliver pioneering models and user experiences.Supported by top-tier investors such as Index Ventures, Lightspeed Venture Partners, and others, along with guidance from industry-leading advisors and over 90 angel investors, we are well-equipped to reshape the landscape of AI.About the RoleWe are seeking a skilled Software Engineer to join our team and help propel our vision of real-time, multimodal intelligence.Your ImpactDevelop and implement a low-latency, scalable, and dependable model inference and serving framework for our innovative SSM foundational models.Collaborate with our research and product engineering teams to translate cutting-edge research into extraordinary products.Establish robust, high-quality data processing and evaluation infrastructure for training foundational models.Enjoy significant autonomy in shaping our product direction and influencing how advanced AI technologies are utilized across various devices and applications.What You BringGiven the complexity of the challenges we tackle, we prioritize strong engineering capabilities at Cartesia.Proficient engineering skills with the ability to navigate intricate codebases and monorepos.A keen eye for detail, ensuring the production of clean, maintainable code.Adaptability to new technologies and quick proficiency with our tech stack, which includes Go and Python for backend development and Next.js for frontend.Experience in building large-scale distributed systems that require high performance, reliability, and observability.
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