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Experience Level
Entry Level
Qualifications
Strong knowledge of distributed systems and database architectures. Experience in programming languages such as Go, Python, or Java. Familiarity with cloud services and modern data processing frameworks. Ability to work collaboratively in a hybrid environment. Passion for problem-solving and a drive for continuous learning.
About the job
Join Cloudflare as a Distributed Systems Engineer specializing in our Data Platform. In this role, you will be at the forefront of building and optimizing systems that enhance data delivery, database management, and retrieval processes. Collaborate with cross-functional teams to innovate and improve our platform, ensuring seamless data access and performance.
This position offers a unique opportunity to work in a dynamic environment, leveraging cutting-edge technologies to impact the way data is processed and utilized across our platform.
About Cloudflare, Inc.
Cloudflare is a leading web performance and security company, helping to build a better Internet. We protect and accelerate any Internet application without adding hardware, installing software, or changing a line of code. Our mission is to help build a better Internet by providing security, performance, and reliability solutions.
Full-time|$150K/yr - $300K/yr|On-site|San Francisco, California, United States
Join fuku as a Senior Software Engineer, where you'll take charge of mission-critical systems from inception to deployment. Located in the vibrant tech hub of San Francisco, CA, this full-time role requires in-office presence five days a week. As part of a dynamic team, you'll architect and deliver full-stack product features utilizing advanced technologies …
About Venteur At Venteur, we are committed to revolutionizing healthcare across America. Our mission is to empower individuals to take control of the vast resources spent on their behalf, often dictated by HR professionals and brokers. We believe this will foster improved outcomes for everyone involved. The transformation of the healthcare market is just beginning. Just as we witnessed 40 years ago with the shift from company-controlled retirement plans (pensions) to individual-driven solutions (401ks), new regulations are paving the way for healthcare to transition from group plans to individualized solutions, such as the Individual Coverage Health Reimbursement Arrangement (ICHRA). Our technology-driven platform is redefining how businesses provide health benefits and empowering employees to prioritize their wellness and longevity. We are looking for enthusiastic individuals who thrive on exploration and continuous learning to join us on this exciting journey. As an early-stage startup, you will find tremendous opportunities for career growth and advancement, along with the financial benefits of being an early member of a future leader in technology. If you are a problem-solver with strong communication skills, we invite you to help us shape a healthier and more personalized future. Join Venteur and be part of something genuinely transformative! Our Values At Venteur, we believe that our culture is our greatest asset. We encourage the following values throughout our organization: - Approach Every Situation with Kindness - Bias for Action - Say “Yes” to Challenging Tasks - Insist on the Highest Standards - Strive for Empathy and Shared Understanding - Leave the Campsite Better than You Found It - Earn Trust — and Maintain It - Support Each Other Learn more about our team hereAbout Your Role:
Full-time|$137.5K/yr - $183.5K/yr|Remote|US - Remote - California - Bay Area, US - Remote - Virginia, US - Remote - Massachusetts , US - Headquarters - Maryland - Columbia
About Tenable:Tenable® is at the forefront of Exposure Management, empowering over 44,000 organizations globally to comprehend and mitigate cyber risks. Our dedicated team supports a diverse clientele, including 65% of the Fortune 500 and numerous government agencies. Join us on our exciting journey!Why Choose Tenable?Our employees are our greatest asset! We collaborate to create and innovate cutting-edge cybersecurity solutions while fostering a culture of inclusion, respect, and excellence. As a member of our #OneTenable team, you will work alongside passionate professionals and have access to the resources necessary to make a meaningful impact. Together, we achieve exceptional results!Important Note: Applicants must be authorized to work in the U.S. without sponsorship. We do not provide visa sponsorship at the time of hire or during employment, including but not limited to F1-OPT, F1-CPT, H-1B, TN, J-1, etc.Your Role:Tenable is looking for a Senior Software Engineer to enhance our VM Platform team. Your work will be pivotal in our Tenable One architecture, where you will manage vast amounts of asset data, process it to determine the “state of the world” for our clients, and ensure seamless integration with downstream search and reporting tools.We are tackling complex Big Data challenges, building and maintaining high-throughput, event-driven pipelines responsible for processing asset and vulnerability history. You will design systems that handle enormous scale, ensuring the accuracy and real-time availability of vulnerability data.To qualify for this position, you must meet one of the following criteria:Hybrid: Ability to commute to our Columbia, MD/Northern VA office.Hybrid: Ability to commute to our Boston, MA office.Remote: Currently reside in the San Francisco Bay Area, CA.Your Opportunity:Help shape the Future of Exposure Management: Contribute to the backend development of Tenable’s flagship Exposure Management (EM) platform, influencing the future of our EM offerings.
Astranis is at the forefront of satellite technology, crafting advanced satellites that extend humanity’s reach into the solar system. Our satellites are designed to deliver dedicated and secure networks to a diverse range of clients, including large enterprises, governmental bodies, and the U.S. military. With five satellites successfully launched and a robust pipeline of more than $1 billion in commercial contracts, we are poised for significant growth.As a trusted partner in satellite communications, we cater to clients who demand high standards for uptime, data security, and network customization. Our impressive funding of over $750 million from top-tier investors like Andreessen Horowitz, Blackrock, and Fidelity allows us to employ a dedicated team of 450 innovative engineers and entrepreneurs at our state-of-the-art 153,000 sq. ft. headquarters in Northern California, USA.Backend Software Engineer Intern - Summer 2026Join our Platform team as a Software Engineer Intern, where you will design and develop services that autonomously control satellites, monitor telemetry for anomalies, and provide real-time situational awareness to ensure the safety and connectivity of our fleet. Your work will also encompass building critical components and services that empower our software organization, enabling all teams to operate more swiftly and reliably.This internship presents an exciting opportunity to contribute to both our commercial and U.S. government initiatives. Internships at Astranis typically last for twelve weeks and are tailored for students currently enrolled in a four-year university program. If you have already graduated, we invite you to apply for our Associate Engineer positions.
Full-time|$165K/yr - $500K/yr|On-site|San Francisco, CA
Join the Fluidstack TeamAt Fluidstack, we’re pioneering the infrastructure for advanced intelligence. We collaborate with leading AI laboratories, governmental entities, and major corporations—including Mistral, Poolside, and Meta—to deliver computing solutions at unprecedented speeds.Our mission is to transform the vision of Artificial General Intelligence (AGI) into a reality. Driven by our purpose, our dedicated team is committed to building state-of-the-art infrastructure that prioritizes our customers' success. If you share our passion for excellence and are eager to contribute to the future of intelligence, we invite you to be part of our journey.Role OverviewThe Inference Platform team at Fluidstack is at the forefront of addressing the cost and latency challenges associated with frontier AI. You will play a crucial role in managing the serving layer that connects our global accelerator supply with the production workloads of our clients, which include LLM serving frameworks, KV cache infrastructure, and Kubernetes orchestration across multiple data centers.This hands-on individual contributor role combines elements of distributed systems, model optimization, and serving infrastructure. You will oversee the entire lifecycle of inference deployments for leading AI labs, striving for enhancements in throughput, cost-efficiency, and response times, while also influencing the architectural decisions that guide Fluidstack’s deployment strategies.
Founded in 2007, Airbnb has transformed the way people travel, connecting over 5 million hosts to more than 2 billion guest arrivals across nearly every country in the world. Our platform allows hosts to offer unique stays and experiences, facilitating authentic connections between guests and local communities.LocationThis position is fully remote and should be based in Mainland China. Note: No Relocation or Visa Support offered.The Community You Will JoinThe Notifications team at Airbnb is focused on crafting and enhancing essential notification systems that ensure smooth and efficient communication for our guests and hosts worldwide. We work closely with product teams to assess notification requirements and deliver scalable solutions. Our goal is to improve engagement, reduce user fatigue, and achieve significant business results through technology and governance.The Difference You Will MakeWe seek backend engineers who are dedicated to building reliable systems that create meaningful user impacts. You will collaborate in a global setting to translate product and engineering concepts into effective production systems. Your contributions will help to develop our notification platform, refine delivery timing, optimize channel selections, and create scalable solutions that support various product teams across Airbnb.A Typical DayWork with engineers and cross-functional partners to clarify requirements, prioritize tasks, and define project scopes within your team’s roadmap.Engage in technical design discussions and align implementation details with team members and partner teams.Create clean, testable, and maintainable code for backend services and platform capabilities.Participate in on-call rotations and enhance operational excellence through improved runbooks, monitoring, and rollback readiness.Diagnose production issues, implement fixes, and enhance system reliability in your areas of responsibility.Guide and mentor junior engineers through code reviews, design discussions, and everyday collaboration.
Full-time|$120K/yr - $150K/yr|On-site|San Francisco
Astranis is redefining the boundaries of space communication by designing and launching cutting-edge satellites for high orbits, thereby extending humanity's presence in the solar system. Our satellites deliver dedicated and secure networks to a diverse clientele, including large corporations, government entities, and the U.S. military. With five satellites already in orbit and numerous launches on the horizon, we are poised to fulfill a substantial backlog exceeding $1 billion in commercial contracts.Astranis is the go-to partner for satellite communications, meeting the stringent demands for uptime, data security, network visibility, and customization. Having raised over $750 million from leading investors such as Andreessen Horowitz, Blackrock, and Fidelity, we have a dynamic team of 450 engineers and entrepreneurs. Our operations are based out of a state-of-the-art 153,000 sq. ft. headquarters in Northern California.Position Overview: Backend Software EngineerJoin our Platform team as a Software Engineer, where you will design and develop services that autonomously manage satellites, monitor telemetry for anomalies, and provide real-time situational awareness, ensuring the safety and operational status of our fleet. You will also be responsible for building the core components and services that empower our entire software organization, enabling accelerated and reliable workflows across various teams.Your contributions will play a pivotal role in both our commercial and U.S. government initiatives.Key ResponsibilitiesDevelop high-performance, reliable, mission-critical software to send commands to space.Own features end-to-end, collaborating with backend and infrastructure teams.Work alongside multidisciplinary teams to define software requirements, architectures, and designs.Evaluate emerging technologies and advocate for innovations to enhance our systems.Mentor and support teammates, sharing knowledge to elevate our technical standards.
About Numeral:Numeral is revolutionizing the tax landscape for digital businesses, helping them navigate the complexities of regulations across 47 states and over 50 countries. Our mission is to lift this burden so that teams can concentrate on their primary objectives.As the largest and fastest-growing AI-driven tax solution, Numeral was established in 2023 and has successfully raised over $57 million from notable investors such as Benchmark, Mayfield, and Y-Combinator. We proudly serve more than 2,500 paying customers and have consistently tripled our revenue year over year since our inception.While our main hiring hubs are in San Francisco and New York, we do offer remote opportunities based on specific circumstances.About the Role:We are in search of a foundational Full-Stack Engineer who thrives in dynamic environments, enjoys constructing intricate distributed systems, and is eager to establish core architecture within a rapidly expanding early-stage startup. You will spearhead the design and implementation of APIs, services, and infrastructure that form the backbone of our platform. Additionally, you will collaborate with leadership to drive engineering strategy, product execution, and cultural development.Your Responsibilities:Design and develop scalable and secure backend services and APIs from the ground up.Make architectural choices that prioritize speed, data integrity, and long-term sustainability.Work closely with product, design, and data teams to create efficient systems that enhance crucial customer workflows.Take ownership of infrastructure, observability, and performance for the services you create.Contribute to the establishment of engineering best practices, code quality, and a robust backend culture.What You Bring:Over 7 years of experience in developing backend systems in high-growth settings.Proficiency in backend technologies such as Node.js, PostgreSQL, Redis, and cloud services (AWS preferred).Experience in designing resilient APIs and distributed systems at scale.A strong product sensibility with the ability to balance performance, flexibility, and speed.A startup mindset: comfortable with ambiguity and eager for swift growth.Intensity & Ownership: This role goes beyond a standard 9-5 — we are rapidly scaling and face exciting opportunities ahead.Customer Obsession: A genuine commitment to enhancing user experience and resolving their challenges.
About CodeRabbitCodeRabbit is a groundbreaking research and development firm dedicated to creating highly efficient human-machine collaboration systems. Our mission is to develop the next generation of AI-driven code review tools that foster a collaborative relationship between human developers and advanced algorithms, yielding superior outcomes compared to individual efforts. We leverage state-of-the-art language models combined with human creativity to redefine the standards of software development efficiency and quality.Role OverviewAs a Backend Software Engineer at CodeRabbit, you will play a pivotal role in crafting advanced AI applications that transform the code review landscape. Your work will be situated at the convergence of intelligent systems and software engineering, enabling developers to rapidly iterate within intricate environments. Your skills will be invaluable in designing solutions that improve code quality, scalability, and developer productivity.In this position, you will architect and develop essential backend systems that drive our AI agent workflows, context-aware code reviews, repository planning tools, and dashboard interfaces. Collaborating with AI researchers, infrastructure experts, frontend developers, and product strategists, you will contribute to building robust, intelligent backend systems that scale effectively to support our tools for developers.
Join Aircall as a Senior Software Engineer specializing in AI Voice Agents, where you'll play a pivotal role in designing and implementing innovative voice solutions. Your expertise in software development and artificial intelligence will help us enhance customer interactions through cutting-edge technology.
Perplexity seeks a Software Engineer in San Francisco to focus on computer monetization. This position involves developing and enhancing software that drives the company’s monetization strategies. Role overview This role centers on building and refining systems that support Perplexity’s revenue efforts. Projects in this area have a direct impact on the company’s growth within the technology sector. What you will do Develop software solutions that contribute to monetization goals Refine and improve existing systems to optimize revenue streams Work on projects that influence Perplexity’s expansion and success Location This position is based in San Francisco.
Full-time|$170K/yr - $230K/yr|On-site|Palo Alto / San Francisco Bay Area
Mithril builds AI infrastructure that makes GPU computing more accessible and affordable for enterprises, startups, and research organizations. The company partners with groups such as LG AI Research, Saronic, and the Broad Institute. Founded by leaders with backgrounds at Google DeepMind and Stanford, Mithril has secured $80 million across seed and Series A rounds, with backing from Sequoia Capital and Lightspeed Venture Partners. Over the past year, platform revenue has grown more than sixfold. Fast Company named Mithril the 8th Most Innovative Company in Artificial Intelligence for 2026. Mithril is moving from bare-metal operations to a cloud-native, multi-provider platform built around a flexible auction model. This is a foundational stage for the company, offering engineers a chance to shape the next generation of its platform. Role overview The Software Engineer - Technical Staff Member (Consumption Team) works across Mithril's three main engineering domains: Consumption (developer-facing product, billing, and API surface), Platform (orchestration and marketplace engine), and Supply (cloud provider integrations and capacity management). Engineers in this role take ownership of key components, building features that drive revenue and support essential customer operations. What you will do Develop backend systems and marketplace logic that support GPU capacity management and customer-facing interfaces. Deliver features that directly impact how customers reserve and consume GPU resources. Work on systems that handle financial transactions, spot auctions, reservation pricing, and allocation of capacity across a range of providers. Gain insight into architectural decisions that will influence Mithril's scalability and product direction. What makes this role different This position bridges both systems and product engineering. Unlike many early-stage infrastructure roles that focus on a single area, this team builds the orchestration engine managing GPU capacity across providers and also enhances the interfaces developers use to interact with the platform. The work involves real-world market dynamics and direct impact on customer workloads and financial flows. For those interested in the mechanics of GPU infrastructure markets and the systems that support them, this role offers hands-on experience and broad technical exposure.
Role Overview Crusoe Technologies is seeking a Senior Staff Software Engineer focused on Managed Orchestration to help shape the direction of our cloud infrastructure. This position is based in San Francisco, CA. What You Will Do Design and implement scalable orchestration solutions for cloud infrastructure. Lead a team of engineers, providing technical guidance and mentorship. Work closely with cross-functional groups to integrate services and products smoothly. Apply deep technical expertise to drive the development of new technologies that improve operational efficiency and customer experience. About Crusoe Technologies Crusoe Technologies builds innovative solutions for cloud computing with a focus on efficiency and sustainability.
Role Overview Voxel is hiring a Senior or Staff Software Engineer focused on Machine Learning Infrastructure in San Francisco, CA. This position centers on building and maintaining scalable infrastructure that supports the company’s machine learning products and services. What You Will Do Design, develop, and maintain machine learning infrastructure for production systems Work with teams across engineering, product, and data to streamline ML workflows Optimize systems for performance, reliability, and operational efficiency Collaboration This role involves frequent collaboration with colleagues from multiple disciplines to ensure machine learning solutions are robust and scalable.
Full-time|On-site|San Francisco, CA | New York City, NY
Role Overview Anthropic is looking for a Full-Stack Software Engineer with a focus on reinforcement learning. This role centers on building applications that use reinforcement learning to advance artificial intelligence. Work closely with skilled teammates to create software that makes a real impact. Location San Francisco, CA or New York City, NY
Full-time|$350K/yr - $475K/yr|On-site|San Francisco
Thinking Machines Lab aims to advance collaborative general intelligence, making AI accessible and adaptable for individuals and organizations. The team brings together scientists, engineers, and innovators behind well-known AI solutions, including ChatGPT, Character.ai, Mistral, and open-source projects like PyTorch, OpenAI Gym, Fairseq, and Segment Anything. Tinker, the lab’s fine-tuning API, helps researchers and developers customize AI models using their own data and algorithms. By handling the infrastructure, Tinker allows users to focus on training and deploying models that suit their needs. With a growing customer base and expanding features, the team is looking for a Software Engineer, Platform to support Tinker's continued development. Role overview This position centers on building and maintaining the core platform systems that power Tinker. The engineer will manage billing and usage metering, permissions and access control, organizational structures, data exports, audit logging, and the administrative tools that tie these systems together. Collaboration with product and legal teams is essential, as changes to features, pricing, and enterprise agreements will involve this role. What you will do Design the authorization layer for all products, including RBAC, API key scoping, organizational hierarchies, and permission boundaries. Oversee billing infrastructure, covering usage metering, plan management, payment processing, invoicing, and revenue recognition support. Develop and improve models for organizations and teams, such as seat management, SSO/SAML, workspace isolation, and invitation flows. Implement data export and deletion processes that align with enterprise standards and data residency requirements. Create audit logging systems to track user actions and decisions. This role is based in San Francisco.
Handshake connects over 20 million professionals, 1,600 educational institutions, and 1 million employers, including every Fortune 50 company, through its career network focused on the AI economy. The platform supports everything from freelance AI training projects to full-time positions and is on a path to triple annual recurring revenue by 2025. The Software Engineer II - Reinforcement Learning Environments role centers on building and evolving Handshake’s RLE platform. This platform enables advanced AI models to learn and tackle real-world challenges. The position is based in San Francisco, CA, and requires in-office work five days a week. What you will do Develop and enhance core components for reinforcement learning environments and their infrastructure. Design and implement backend systems and efficient data pipelines. Translate complex product and research requirements into reliable, working systems. Create modular, reusable workflow domains to streamline processes. Focus on improving system reliability, observability, and performance tracking. Requirements 4–6 years of experience in backend development, distributed systems, or machine learning infrastructure. Strong skills with ReactJS and TypeScript. Experience working with relational databases, especially PostgreSQL, and data modeling. Familiarity with AWS or GCP and CI/CD practices. Ability to manage projects independently from planning through production. Bonus points Background in simulation systems or performance optimization. Why join Handshake? Help shape the future of careers in the AI sector and make a measurable impact. Work directly with top AI labs, Fortune 500 companies, and leading universities. Join a team with alumni from Scale AI, Meta, xAI, Notion, Coinbase, and Palantir. Be part of a business experiencing significant revenue growth.
Full-time|On-site|San Francisco, California, United States
Our Mission: 6sense is dedicated to transforming the way B2B organizations generate revenue. By predicting which customers are most likely to buy and recommending optimal engagement strategies for anonymous buying teams, we empower businesses to unlock their full revenue potential with 6sense Revenue AI.Our People: At 6sense, our people are the cornerstone of our success. We are driven by our values of Accountability, Growth Mindset, Integrity, Fun, and One Team. Every member at 6sense contributes to shaping the future of our industry-leading technology. We foster an environment where innovators can take risks, act with integrity, and define success through the value we deliver to our customers.We aim for 6sense to be the most rewarding chapter in your career.
Full-time|$197K/yr - $235K/yr|On-site|San Francisco, CA;New York, NY;Toronto, Ontario, CAN
About GustoAt Gusto, we are dedicated to empowering the small business economy. Our services simplify complex tasks like payroll, health insurance, 401(k)s, and HR, allowing business owners to concentrate on their passion and customers. With teams in Denver, San Francisco, and New York, we proudly support over 400,000 small businesses nationwide, committed to creating a workplace that reflects and honors the customers we serve. Discover more about our Total Rewards philosophy.About the Role:We are seeking passionate Mobile iOS Engineers who are eager to craft exceptional user experiences. In this role, you will develop features that are not only functional but also intuitive and delightful for our users. You will take charge of scaling our shared services while staying current with the latest iOS advancements. Collaborating with teams from Product Management, Identity, Security, System Design, and Infrastructure, you will build solutions that make a significant impact. If you are enthusiastic about creating elegant, scalable applications and want to be part of a supportive, innovative mobile team, we would love to connect with you!About the Team:At Gusto, we are at a transformative stage with over 1M+ monthly active users and the recent launch of our employer experiences on mobile. Our mission is to address the real challenges faced by small business owners and their employees, with mobile technology being crucial for delivering effective solutions. As a member of our mobile team, you will be at the forefront of this change, collaborating with talented engineers and designers passionate about providing a seamless mobile experience. Together, we aim to empower small business owners and their teams to succeed. If you are ready to make a difference in the mobile landscape at Gusto, we want you on our team!Here’s what you’ll do day-to-day:Architect, build, test, and enhance Gusto’s native iOS app, along with supporting mobile web views that elevate user experience.Develop, iterate, and refine product features that integrate core business functions, work tools, value-added services, and financial products.Collaborate closely with our product management, design, and partner teams...
At Crusoe, we are on a mission to propel the abundance of energy and intelligence. We are pioneering the technology that fuels a future where individuals can innovate with AI, all while maintaining high standards of scalability, speed, and sustainability.Join us in leading the AI revolution through sustainable technology. As a member of our team, you will contribute to significant innovations, make a real difference, and collaborate with a group that is at the forefront of responsible and transformative cloud infrastructure.About This Role:We are looking for skilled Software Engineers to design, construct, and enhance Crusoe Cloud’s customer-facing platforms and managed services. Your primary focus will be to provide a world-class customer experience, enabling users to harness the full potential of Crusoe Cloud through innovative and dependable cloud solutions. This is a full-time position.What You’ll Be Working On:Building Foundational Infrastructure: Develop and scale essential infrastructure services that oversee crucial resources within our cloud platform. This entails designing, creating, and deploying resilient and reliable systems from scratch.Scalable Design: Create highly scalable, durable, and reliable platform services that emphasize user-friendliness.Cross-Functional Collaboration: Lead initiatives that necessitate collaboration with engineering, cloud support, site reliability, and product teams to evaluate tools, frameworks, and solutions that meet both customer and operational requirements.Innovation: Implement features that distinguish Crusoe Cloud, with a focus on operational efficiency, seamless adoption, turn-key AI services, and scalability.What You’ll Bring to the Team:Cloud Expertise: Demonstrated capability in designing and scaling fault-tolerant distributed systems and developing managed cloud services.Technical Proficiency: Solid foundation in microservices and infrastructure technologies such as Docker, Kubernetes, Terraform, and CI/CD systems. Familiarity with observability principles and technologies including time-series databases, log aggregation, and distributed tracing.Customer-Centric Mindset: A commitment to developing intuitive, high-quality solutions that significantly impact customer success and satisfaction.Collaboration Skills: Proven ability to work effectively with cross-functional teams.
