Senior Platform Engineer

We are seeking a talented Senior Platform Engineer to join our dynamic team at Blackbird Labs Inc. in New York. In this pivotal role, you will leverage your expertise in infrastructure and artificial intelligence to build and enhance our platforms, ensuring they are robust, scalable, and efficient.You will work closely with cross-functional teams to architec…

About Kalepa:In the trillion-dollar commercial insurance industry, many processes still rely on outdated tools like Microsoft Outlook. At Kalepa, we are revolutionizing this landscape.Kalepa offers an advanced AI Underwriting Platform designed to provide professional-grade AI capabilities in production. Our platform empowers leading insurers to streamline submission data, uncover critical risk insights, and enhance decision-making speed and accuracy. Clients experience significant enhancements in their operational efficiency and portfolio quality upon implementing Kalepa, often referring to it as a "truly an underwriter’s dream." Our company is backed by renowned investors such as IA Ventures and Inspired Capital, and our diverse team boasts expertise from industry giants including Facebook, Google, Amazon, Mastercard, and Uber.

Role overview Braze, Inc. is hiring a Senior Staff Platform Infrastructure Engineer based in New York City. This position centers on designing and improving the core infrastructure that supports Braze’s products and services. The engineer will guide complex technical projects and partner with teams throughout the company. What you will do Design and enhance platform infrastructure to strengthen Braze’s offerings Take the lead on technical projects, managing them from initial planning through execution Work closely with colleagues across departments to deliver reliable and scalable solutions Share ideas and technical knowledge to help drive improvements and innovation in the platform

Join Fluidstack: Pioneering the Future of IntelligenceAt Fluidstack, we're transforming the landscape of artificial intelligence infrastructure. Collaborating with leading AI research labs, government entities, and major corporations—including Mistral, Poolside, Black Forest Labs, and Meta—we are dedicated to delivering computing solutions at unprecedented speeds. Our mission is to expedite the realization of Artificial General Intelligence (AGI), and we are seeking passionate individuals who thrive on purpose and excellence.We take immense pride in the systems we develop and the trust we build with our clients. If you are ready to roll up your sleeves and contribute to shaping the future of intelligence, we invite you to join our innovative team.Position OverviewFluidstack, a prominent player in the cloud services arena, is on the lookout for a Software Engineer specializing in Infrastructure Platform Development. In this role, you will be instrumental in constructing the foundational platforms that support our global infrastructure and data center operations. Your focus will be on developing robust internal tools across various domains, including Configuration Management Database (CMDB), asset management, Data Center Infrastructure Management (DCIM), monitoring, observability, security, and operational automation. Collaborating with cross-functional teams, you will craft scalable and user-friendly solutions that enhance our ability to provide top-tier infrastructure services.Key ResponsibilitiesInfrastructure Platform DevelopmentDesign and implement a next-generation CMDB system to serve as the definitive source of truth for infrastructure assets, network architecture, and configuration data.Develop DCIM platforms for managing rack operations, server/GPU deployments, operating system installations, quality assurance, and white-screen activities.Create comprehensive asset lifecycle management systems encompassing receiving, racking, inventory, break-fix, and decommissioning workflows.Build monitoring and observability platforms that integrate telemetry from Building Management Systems (BMS), Environmental Power Monitoring Systems (EPMS), and IT devices, featuring intelligent alerting and incident management capabilities.Develop self-service portals and automation tools for new region initialization, post-deployment operations, and fleet-scale management.Operational Excellence & AutomationMinimize manual tasks through workflow automation and self-service tools that empower our operations and engineering teams.Create workflow orchestration systems to streamline complex multi-step processes that encompass incident, problem, and change management.

About NomicNomic AI is at the forefront of innovation, developing cutting-edge AI agents and robust developer tools that transform document intelligence. We empower enterprise teams in architecture, engineering, and construction to extract actionable insights from decades of drawings, specifications, and project files. Our platform integrates advanced embedding models, sophisticated document parsing, and intelligent autonomous agents capable of reasoning over real-world data and executing actions in dynamic environments.The RoleAs a Senior Platform Engineer at Nomic, you will play a pivotal role in advancing our infrastructure and ensuring the safe operation of our autonomous agents in live customer environments. You will be responsible for overseeing our multi-account AWS setup, Kubernetes clusters, and infrastructure-as-code implementations. Your primary focus will be on the critical challenge of executing autonomous agents securely, including sandbox execution, secure isolation, automated health checks, and meeting the reliability standards our enterprise clients demand.This senior individual contributor role offers significant ownership and influence over architectural decisions.Team: Platform & Infrastructure Reports to: CTOWhat You'll Work OnAgent infrastructure: Your top priority will be ensuring that our agents operate safely within customer cloud environments. This includes managing sandboxing, isolation, monitoring, and the scalable operation of workloads. Key tasks will involve establishing execution environments, security boundaries, automated QA processes, evaluation harnesses, and feedback loops to enhance agent reliability over time.Core infrastructure: Work with Kubernetes, multi-account AWS, CI/CD pipelines, deployment strategies, observability frameworks (traces, metrics, logs, alerting, SLOs), disaster recovery protocols, and cost management initiatives.Security posture: Implement access controls, manage secrets, ensure network security, conduct image scanning, perform dependency audits, and oversee compliance tasks (SOC2, enterprise security) as required by our clients.Infrastructure as code: Continuously define, provision, and evolve our infrastructure through code.What We're Looking ForYou have:A minimum of 5 years of experience in infrastructure, DevOps, or SRE roles, specifically managing cloud infrastructure in production environments.Proficiency in Kubernetes, including deploying workloads, troubleshooting issues, and optimizing performance.

Our VisionAt General Intelligence Company (GIC), we are pioneers in developing advanced autonomous agents designed specifically for startups. Our mission is to empower solo entrepreneurs to build billion-dollar enterprises with our innovative technology. These agents not only streamline workflows but also transform operational processes. We are in search of an experienced infrastructure and platform engineer with profound systems engineering expertise to create and sustain the robust, scalable infrastructure that fuels our AI agent platform.Our infrastructure manages intricate distributed workloads, ranging from AI model inference to multi-tenant orchestration of agents. We seek a candidate who can design resilient systems, enhance performance at scale, and facilitate the seamless evolution of our platform from handling thousands to millions of agent operations.Your ResponsibilitiesCraft and implement scalable architectural designs for AI agent workloads.Develop and uphold cloud infrastructure utilizing modern Infrastructure as Code (IaC) tools such as Terraform, ensuring dependable deployments across various environments.Enhance system performance and cost-effectiveness for high-throughput workloads, focusing on resource management and auto-scaling capabilities.Establish robust monitoring, alerting, and observability frameworks to guarantee over 99.9% uptime for mission-critical agent functionalities.Collaborate closely with engineering teams to ensure smooth CI/CD pipelines and zero-downtime deployments.Construct a security-centric infrastructure with appropriate access controls, secrets management, and compliance protocols.Engage in rapid, iterative cycles—focusing on continuous enhancement and scaling without unnecessary backlogs.Align our foundational principles with infrastructure:Cycle time is essential. You deploy rapidly and iterate.Quality is paramount. Your infrastructure is self-sufficient.No backlogs. Develop what is necessary, when it is necessary.FITFO. You independently resolve challenges.Ownership mentality. You approach your work as if you own it.Your Profile4+ years of experience in building and scaling production infrastructure, ideally within high-growth startup environments.Familiarity with Site Reliability Engineering (SRE) monitoring and observability tools, such as Datadog, along with experience in constructing robust alerting systems.Proficient in cloud platforms and services, with a strong understanding of networking and security best practices.

Supported by prominent investors from Silicon Valley, Peregrine Technologies empowers public safety organizations, state and local governments, federal agencies, and private-sector institutions to tackle societal challenges with unmatched speed and precision. Our AI-driven platform transforms isolated and fragmented data into actionable operational intelligence, instantly highlighting critical information that enables quicker, more informed decisions to enhance outcomes at every interaction. Currently, Peregrine serves hundreds of clients across over 30 states and two countries, impacting more than 125 million individuals as we broaden our reach into enterprise markets and international territories.Our TeamAt Peregrine, we hold a strong belief that empathy is key to enhancing our solutions. Observing how users interact with our product is a priority and essential to finding effective answers. Engineers are encouraged to collaborate closely with our team on-site to grasp the diverse use cases that Peregrine addresses.We are seeking an Engineering Manager to strengthen our core engineering teams. In this role, you will work collaboratively with design and product management to create robust, scalable, and user-focused systems. Our teams face various challenges, including enabling real-time user collaboration on detailed maps and constructing high-scale backend architecture to process billions of data points.Ownership and collaboration are highly valued— you will be entrusted with significant features and will work alongside fellow engineers to see them through to completion. We believe humility and empathy are crucial in crafting the right solutions; you will engage directly with our deployment team and users as we refine our approach to address their needs. Creativity and perseverance are essential in realizing our vision.RoleThis position is pivotal to Peregrine's platform strategy and execution. You will be responsible for defining how our core systems scale, perform, and evolve as Peregrine accelerates its growth and deepens its influence across public safety, government, and enterprise clientele.As a senior leader in platform engineering, you will not only manage systems but also set the technical trajectory, build a cohesive team, and establish the operational framework that empowers every product team at Peregrine to operate more efficiently, securely, and confidently. Your contributions will directly influence reliability, developer productivity, customer trust, and the company’s capacity for innovation at scale.

At Genius Sports, we are pioneering a new era in sports engagement by combining advanced technology with the highest quality live data. Our goal is to create immersive, interactive, and personalized experiences for sports fans around the globe. Learn more about us here. geniussports.com.Position Overview - Senior Software Engineer, Data PlatformWe are seeking a Senior Data Platform Engineer to architect and scale the core systems that underpin our data ecosystem. In this pivotal role, you will lead the design and modernization of our data infrastructure, empowering teams throughout the organization to swiftly, reliably, and securely access and utilize data. You will spearhead significant platform initiatives from inception to production, carefully navigate architectural decisions, and closely collaborate with product teams and cross-functional stakeholders to drive engineering strategy.This role is perfect for a technically adept leader with extensive experience in distributed systems, modern data lakehouse and streaming architectures, and large-scale data operations. A strong passion for mentorship, technical excellence, and creating systems that yield substantial business impact is essential.Key ResponsibilitiesDesign, construct, and oversee the foundational systems and features of the Data Platform, facilitating internal teams' ability to access and utilize data efficiently and securely.Lead the modernization of our data infrastructure while managing technical complexities and making informed architectural decisions to enhance our foundation and boost organizational productivity.Act as a technical leader for extensive Data Platform initiatives, influencing architectural choices and engineering direction in collaboration with product and cross-functional teams.Mentor junior and mid-level engineers, enhancing their skills and preparing them for greater responsibilities.Stay informed on emerging technologies and industry advancements in data systems and platform development.

Role Overview BitGo is looking for a Senior Infrastructure Engineer in New York to help strengthen and expand the systems behind its crypto financial services. This role focuses on designing, building, and maintaining scalable infrastructure that supports the company's growth and reliability goals. What You Will Do Design and implement systems that scale with increasing demand Maintain existing infrastructure to ensure high reliability and performance Identify areas for improvement and contribute to better engineering practices About BitGo BitGo provides crypto financial services and relies on a strong engineering foundation to deliver secure, high-performing products.

Scale AI is seeking a Senior AI Infrastructure Engineer to help build and refine the company’s Training Platform. This position centers on designing, implementing, and improving infrastructure that supports machine learning teams as they train and deploy models. Role overview This engineer will work closely with colleagues across different functions to create solutions that make AI systems more efficient. The focus is on enabling faster, more reliable model training and deployment. Key responsibilities Design and build infrastructure for AI model training Implement and optimize systems to support machine learning workflows Collaborate with teams throughout the company to improve platform capabilities Locations This role is based in San Francisco, Seattle, or New York.

About PolymarketPolymarket stands as the leading prediction market globally, where insights meet investment—part betting, part future forecasting.As we accelerate our growth—with over $6 billion traded this year alone—we aspire to be a trusted source of information in global media. Join us in our mission to revolutionize how the world perceives truth.About the RoleWe are seeking a top-tier Infrastructure Engineer to enhance our engineering platform. This pivotal role involves designing, building, and managing the foundational systems that empower our diverse product offerings. You will play a crucial part in establishing developer workflows, CI/CD pipelines, and robust infrastructure that supports high-performance APIs and data services. Your expertise will guide significant technical decisions, shape system architecture, and implement solutions that prioritize efficiency, reliability, and sustainability.What You’ll DoWe are in search of a seasoned individual contributor passionate about optimizing essential infrastructure.Build & Automate Development Workflows. You will design and maintain infrastructure that standardizes our software development, versioning, testing, and deployment processes across various environments.Architect Scalable Systems. You will make informed architectural decisions, weighing risks, performance, costs, and maintainability.Power High-Performance Services. You will enhance the infrastructure that supports real-time APIs and low-latency data feeds.Develop Testing Infrastructure. You will construct reliable tooling for automated testing, encompassing unit, integration, and API levels.Ensure Availability & Reliability. You will oversee critical infrastructure to minimize downtime and mitigate failure risks.Move Fast Without Breaking Things. You will deliver high-quality solutions efficiently, showcasing a strong sense of ownership and attention to detail.Operate Autonomously. You will take initiative and make independent decisions without micromanagement.Collaborate Across Teams. You will work closely with engineers across the organization to address deployment, performance, and operational requirements.What We’re Looking For6+ years of hands-on experience in infrastructure engineering or related fields.Proficiency in cloud platforms (AWS, GCP, Azure) and container orchestration (Kubernetes).Strong knowledge of CI/CD tools and practices.Experience with database technologies and API design.Exceptional problem-solving skills and a collaborative mindset.

Join Us at PerceptaAt Percepta, we are on a mission to revolutionize critical industries through the power of applied AI. Our commitment is to ensure that essential sectors such as healthcare, manufacturing, and energy leverage advanced technologies for their benefit.We partner with leading organizations to foster AI transformation, combining:Expertise in engineering, product development, and researchMosaic, our proprietary toolkit designed for the rapid deployment of intelligent architecturesStrategic collaborations with industry giants like Anthropic, McKinsey, AWS, and General CatalystOur team consists of a dynamic group of Applied AI Engineers, Embedded Product Managers, and Researchers, all eager to integrate AI innovations into tangible improvements in everyday life.Percepta is a proud partner of General Catalyst, an esteemed global transformation and investment firm.Role OverviewWe are seeking a Senior Platform Engineer to develop the foundational infrastructure that supports Percepta’s AI initiatives.This pivotal role bridges customer implementations and platform architecture. As part of a dedicated team, you will engage directly with key institutions, designing and constructing systems that enable AI agents to effectively interact with real-world tools, services, and environments.Your work will often commence in the field, crafting solutions for specific client challenges. Ultimately, your goal will be to identify and formalize effective abstractions to enhance our platform, facilitating quicker deployment of future systems.The challenges we face are novel, and the frameworks are still evolving, meaning the systems we create often lack predefined guidelines.Your ResponsibilitiesDevelop the core platform enabling AI agents to interact seamlessly with external tools, services, and environments.Design systems that manage complex multi-step workflows driven by cutting-edge models.Collaborate with Percepta teams embedded with clients to deliver robust production AI systems.Extract reusable abstractions and infrastructure from real-world deployments.Create reliable interfaces between AI systems and distributed execution environments.Rapidly prototype new architectures as we navigate emerging patterns in AI.

About ValonValon is pioneering an AI-native operating system tailored for regulated finance, with a focus on revolutionizing mortgage servicing. As a Series C venture backed by a16z, we’re reshaping industries that have long been deemed too intricate for innovation.Instead of relying on outdated legacy systems, we adopted a novel strategy: building and managing our own mortgage servicing business, currently overseeing over $110 billion in loans. This approach has provided us with invaluable insights into the complexities essential for developing software that effectively operates within regulated environments.The impact of our work is evident. We’ve successfully transformed mortgage servicing from a low-margin sector into a highly profitable endeavor, achieving margins exceeding 60% while significantly enhancing customer experience. Major enterprise contracts are now being implemented industry-wide.Our flagship product, ValonOS, is a comprehensive platform that streamlines every process into a structured and programmable framework, perfectly aligned for the AI era. By integrating all operations into a single system with rich data, our AI-driven agents not only automate tasks but also continuously enhance overall operations. Mortgage servicing is just the first step in our ambitious vision to revolutionize regulated industries and beyond.About the TeamJoining our core Platform & Infrastructure product organization means being part of a team that develops the essential systems and services that underpin our entire product suite.Unlike many infrastructure teams that work behind the scenes, our team operates at a crucial intersection. We build systems relied upon by internal vertical teams while also delivering features that directly engage end-users, such as platforms, self-service tools, and dashboards. This unique position requires a blend of technical expertise and customer empathy.We thrive in a high-growth environment characterized by authenticity and collaboration. You’ll work alongside senior engineers, architects, and cross-functional leaders, gaining significant visibility across the organization.

GovDash empowers businesses to secure and execute government contracts that align with American interests.Our cutting-edge AI platform provides a robust, secure, and workflow-driven solution for managing the entire contracting lifecycle—ranging from opportunity identification and capture to proposal execution, award management, and post-award operations.In 2025, our clients successfully secured over $5 billion in government contracts. With an investment of $42 million, we are accelerating our product development and expanding GovDash's reach across the nation.About the RoleWe are seeking a Senior Software Engineer (Infrastructure) to take charge of a diverse array of self-hosted deployments, spanning cloud environments to air-gapped on-premises systems, along with the software essential for their management. You will work closely with both customers and our product engineering teams to enhance the capabilities of our self-hosted control plane, which includes features such as licensing, observability, automated updates, and more.This position requires a professional adept in high-level architectural design and implementation, with excellent communication skills to engage with customers effectively. Our team values curiosity and a commitment to excellence, thus new engineers should anticipate a challenging yet rewarding environment of technical mastery and significant ownership over critical components of GovDash's infrastructure.This role offers a competitive base salary of $190,000, along with equity, and is positioned in New York City.

Role overview rowspace is looking for an Infrastructure Engineer based in New York City. This position centers on building and securing the core systems that power our AI data platform. The work involves designing infrastructure that processes large volumes of sensitive financial data, with particular attention to security and compliance. Integrating both public and private, tenant-specific customer data in real time and at scale is a key part of this role. What you will do Design and build scalable infrastructure for an AI knowledge engine that works with structured and unstructured financial data. Develop secure architectures for private cloud environments, ensuring alignment with financial services compliance standards. Create data ingestion pipelines for sources such as CapIQ feeds and internal SharePoint documents. Develop monitoring and alerting tools for our Bring Your Own Cloud (BYOC) platform. Set up access controls and audit trails to trace AI interactions back to original data sources. Collaborate with AI Research and Product teams to optimize infrastructure for large language model (LLM) inference, training, and agent development. Implement CI/CD workflows and infrastructure-as-code for reliable deployments across multiple cloud providers.

About KnotAt Knot, we are on a mission to revolutionize the way consumers and businesses interact through seamless merchant and banking experiences. Think of us as the 'Plaid for merchant connectivity.' Our innovative platform is designed to connect merchants with the multitude of applications that enhance everyday transactions. Our flagship product, CardSwitcher, empowers consumers to effortlessly update and manage their payment methods across various online merchant accounts like Netflix and PayPal. Additionally, our advanced solution, TransactionLink, allows for the retrieval of detailed transaction data, paving the way for new product development on our unique merchant connectivity platform. We invite you to join us in building these exciting new solutions!Founded in 2021 by brothers and Thiel Fellows Rory and Kieran O’Reilly, Knot currently facilitates connected online payment experiences for hundreds of thousands of users. Our technology is trusted by industry leaders like American Express, PayPal, Current, BILT, and Step, who integrate Knot’s SDK into their applications to deliver exceptional experiences to their customers.Backed by a distinguished group of investors including Nava Ventures, 8VC, and prominent figures from companies such as Twitter, Warby Parker, and DraftKings, Knot is well-positioned for continued growth and innovation.Working at KnotWe pride ourselves on having a world-class team from diverse backgrounds, with a strong emphasis on engineering talent. As we expand our footprint in NYC, we aim to be at the forefront of the financial services landscape.Our team is dedicated to building exceptional products for our users, balancing a serious approach to our work with a fun and engaging work environment. We believe both aspects are integral to our success.Your RoleDesign, architect, deploy, document, and oversee our cloud-based network infrastructure.Take ownership of critical API infrastructure that handles hundreds of requests per second.Lead technical decisions, providing justification for designs and coordinating with other teams to ensure alignment on values and requirements.Continuously enhance your knowledge of our infrastructure's long-term needs and capabilities.Manage and troubleshoot complex technical issues and incidents, providing support and solutions as necessary.

We are seeking a highly skilled and motivated Senior Platform Engineer to join our dynamic team at st-labs. This role is crucial in designing, developing, and maintaining our platform infrastructure while ensuring optimal performance and reliability. The ideal candidate will possess a strong foundation in software engineering principles and demonstrate a passion for innovation and problem-solving.

Join Ramboll as a Senior Engineer specializing in Water Infrastructure. You will play a pivotal role in designing and implementing innovative solutions that ensure sustainable water management. Work alongside a dynamic team of experts dedicated to creating resilient infrastructure that positively impacts communities.

About PolymarketPolymarket stands as the leading prediction market platform globally, merging the essence of "put your money where your mouth is" with an innovative search engine for future outcomes.Our rapid growth is evident—over $6 billion traded this year alone—alongside our increasing recognition as a credible alternative news source. We aspire to be a beacon of truth in the global media landscape, and we invite you to help us ignite this vision.About the RoleWe are seeking a highly skilled Backend Engineer to become an integral part of our platform engineering team as we expand. The perfect candidate will have a passion for performance, security, and scalability—someone who excels at architecting and refining high-throughput systems using state-of-the-art infrastructure. You will be pivotal in constructing and sustaining the robust foundation that drives our prediction markets, ensuring reliability and efficiency as we progress.Your ResponsibilitiesWe are looking for a seasoned individual contributor who thrives on tackling complex technical challenges and optimizing vital infrastructure.Design & Develop Backend Systems. You'll craft, implement, and uphold high-performance backend services and APIs capable of managing extensive transactions and real-time data streams.Enhance Performance & Scalability. You will push the boundaries of our system’s throughput and efficiency, guaranteeing seamless functionality at scale.Fortify Security & Reliability. You will implement best practices for creating secure, fault-tolerant, and highly available distributed systems.Collaborate Across Teams. You will engage with front-end engineers, designers, and stakeholders throughout the organization to deliver a cohesive user experience.Conduct Code Reviews. You will play a vital role in upholding our codebase's quality by providing constructive feedback during code review sessions.Engage in Research & Innovation. You will remain at the forefront of blockchain-based trading technologies, exploring innovative solutions to enhance our platform.Communicate with Customers. You will interact directly with customers, offering support and gathering valuable feedback for continuous improvement.What We Are SeekingA minimum of 8 years of experience in backend development.Proven experience in architecting and developing scalable solutions in a distributed system environment.Strong proficiency in programming languages such as Go, Java, or Python.Deep understanding of database management systems, cloud services, and microservices architecture.Exceptional problem-solving abilities and a proactive mindset.Excellent communication skills and ability to work collaboratively in a dynamic environment.