About this role
ABOUT HEX
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 https://hex.tech/customers/ramp/, Figma https://hex.tech/customers/figma/, Stubhub https://hex.tech/customers/stubhub/, Anthropic, and Gamma love Hex https://www.g2.com/products/hex-tech-hex/reviews 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 https://www.youtube.com/watch?v=qAXsnrNlavk and employee handbook https://www.notion.so/hexhq/Hex-Handbook-9fff0d42860e4f70815c599e0d1664d6 to learn more about what it’s like to work at Hex.
ABOUT THE TEAM
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 ROLE
We’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 CONTRIBUTIONS
You will help contribute to and evolve several foundational areas, including:
APIS
- GraphQL(schema design, performance, developer ergonomics)
- Authentication & authorization(security, scalability, correctness)
- Multiplayer & collaboration APIs(realtime state, concurrency)
TRANSPORT
- WebSockets and realtime communication infrastructure
STORAGE FRAMEWORKS
- Postgres (schema design, query optimization, migrations)
- S3, DynamoDB, Redis
JOB & WORKFLOW SYSTEMS
- BullMQ and background job processing
- Temporal or similar workflow orchestration systems
INTERNAL TOOLING
- Internal admin tools for debugging, operations, and customer suppo