Software Engineer, Foundations SF, NYC, or Remote (USA)

The Foundations team builds and evolves the application-level infrastructure that powers Hex. We own the shared backend systems, frameworks, and primitives that other teams depend on"”helping the company move faster while maintaining reliability, performance, and security.Our work spans APIs, realtime transport, storage frameworks, background processing, and internal tooling. Rather than shipping isolated features, we focus on creating durable systems that scale with the company and make product development easier for everyone.About the roleWe're looking for a Senior Backend Software Engineer to help design, maintain, and evolve the core systems used across Hex. This role is centered on backend architecture and shared infrastructure, with responsibility for APIs, realtime communication, data access frameworks, job orchestration, and internal admin tooling.You'll work closely with product engineering teams to understand their needs, then turn common patterns into robust, reusable systems. You'll help define standards, influence architecture, and raise the quality bar across the backend.Frontend experience is helpful for understanding end-to-end workflows, but this role is primarily backend-focused.Core ContributionsYou will help contribute to and evolve several foundational areas, including:APIsAuthentication & authorization(security, scalability, correctness)TransportWebSockets and realtime communication infrastructureStorage FrameworksPostgres (schema design, query optimization, migrations)S3, DynamoDB, RedisJob & Workflow SystemsBullMQ and background job processingTemporal or similar workflow orchestration systemsInternal ToolingInternal admin tools for debugging, operations, and customer supportWhat You/'ll DoDesign and build backend frameworks and services used across the companyOwn and evolve critical shared systems, including APIs, realtime transport, and job orchestrationImprove reliability, performance, observability, and security of foundational backend infrastructurePartner with product teams to turn recurring needs into shared abstractionsLead technical design discussions and help set architectural directionDrive refactors, migrations, and system upgrades that reduce long-term complexityImprove internal tooling to support debugging, operations, and customer-facing workflowsMentor other engineers and contribute to strong engineering standards and practicesWhat we/'re looking for5+ years of professional software engineering experience with a strong backend focusExperience working with Typescript/Node.js and SQLExperience building and maintaining shared backend systems or frameworks used by multiple teamsStrong understanding of API design, distributed systems, and asynchronous workflowsExperience working with relational databases and data modeling at scaleFamiliarity with background job systems, queues, or workflow orchestration toolsComfort operating and evolving production systems over timeExperience with cloud infrastructure (AWS preferred)Strong communication skills and a collaborative, leverage-oriented mindsetBonus PointsExperience with PythonHands-on experience with GraphQL, WebSockets, BullMQ, or TemporalFamiliarity with observability tooling (metrics, tracing, logging)Background in data platforms, developer tools, or collaborative systemsExperience with frontend technologies (e.g. React, TypeScript) for end-to-end contextOpen-source contributions, especially in backend or infrastructure projectsOur stackOur product is a web-based notebook and app authoring platform. Our frontend is built with Typescript and React, using a combination of Apollo GraphQL and Redux for managing application state and data. On the backend, we also use Typescript to power an Express/Apollo GraphQL server that interacts with Postgres, Redis, and Kubernetes to manage our database and Python kernels. Our backend is tightly integrated with our infrastructure and CI/CD, where we use a combination of Terraform, Helm, and AWS to deploy and maintain our addition to our unique culture, Hex proudly offers a competitive total rewards package, including but not limited to, market-benched salary & equity, comprehensive health benefits, and flexible paid time off.The salary range for this role is: $215,000 - $270,000The salary range shown may be a reflection of additional factors such as geographical location and skill ranges/levels we/'re open to. Placement in the salary range will be decided upon completion of the interview process, taking into account factors like leaving room for growth, internal fairness & parity, your demonstrated skills, and the depth of your experience. Our Recruiting team will be able to provide more details during the interview process.Hex is growing our team of builders on a mission to make everyone a data person. Our platform solves key pain points with today/'s data and analytics tooling, and empowers anyone to explore data using natural language, with or without code, on trusted context. Thousands of customers like Ramp , Figma , Stubhub , Anthropic, and Gamma love Hex for our beautiful UI, agentic superpowers, and boundless flexibility.Hex has raised over $100M from leading investors like Sequoia, a16z, Snowflake and Amplify. With office hubs in San Francisco and New York, as well as remote team members throughout the US and UK, we/'re a high-agency team that ships fast and has fun doing it. Check out our Intro to Hex video and employee handbook to learn more about what it/'s like to work at Hex. #J-18808-Ljbffr

Created: 2026-04-20