Product Engineer - Backend Developer

About the role

Your job will be to own and scale the backend that powers the E2B Dashboard and SDK -the APIs, data, and services developers rely on to run, monitor, and debug their sandboxes. You're the backend counterpart to our dashboard engineers: they own the experience, you own the services and data behind it, and together you ship product end-to-end.

This is product/application backend - APIs, data layer, auth, billing, usage metrics, real-time log/metric pipelines. It is not our low-level infrastructure (Firecracker, orchestration, the sandbox runtime) - that lives with our Core and Platform teams, who you'll integrate with but not duplicate.

The split is roughly 80% Go backend, 20% TypeScript. You live in Go, but you're comfortable dropping into the Next.js app to wire things up end-to-end and unblock the frontend rather than throwing work over a wall.

You'll build enterprise-grade services that scale to 100k+ weekly active users. Responsibilities include:

• Owning the Go services behind the dashboard and SDK. APIs, data models, and the contracts the frontend builds on
• Designing auth/authorization, billing, and usage-metering surfaces
• Building the real-time backends (WebSockets, SSE) that feed sandbox logs and metrics to the dashboard
• Optimizing data access and server-side performance like query design, caching, response times
• Partnering closely with dashboard engineers to ship features end-to-end, and with Core/Platform on the boundaries where product meets infrastructure
• Making architectural decisions around observability, testing, and security best practices

This role requires a high amount of ownership and the ability to take projects from 0 to 1. You'll have deep autonomy to make backend and product decisions. If you see a better way to build something, you build it.

What we're looking for

• 3-5+ years shipping production backend services, with deep expertise in Go
• Strong API design with REST/RPC, contracts, versioning, and an eye for the interface the frontend needs
• Solid with PostgreSQL: schema design, query optimization, migrations, and reasoning about data at scale
• Backend fundamentals: authentication/authorization, server-side performance, and building real-time data flows (WebSockets, SSE)
• Working TypeScript(Next.js is a plus) competence. You won't live here, but you can move into the app-router frontend to wire up a feature end-to-end and not be lost
• Understand data fetching patterns on frontend side
• Excited to work in person from Prague on a devtool product
• Ownership mentality: you see projects through from conception to launch to iteration
• Comfortable talking to customers and explaining technical tradeoffs
• Not being afraid to take ownership of your part of the product
• Great communication, curiosity, and interest in the AI space

If you join E2B, you'll get a lot of freedom. We expect you to be proactive and take ownership. You'll be taking projects from 0 to 1 with the support of the rest of the team.

What it's like to work at E2B

We're a fast-growing startup with in-person (4 days on-site, 1 day WFH) offices in San Francisco and Prague, Czech Republic. We already generate 8-figure revenue and work directly with top-tier AI companies like Groq, Manus, Hugging Face, Lindy, and other exciting teams pushing the frontier of AI.

We offer healthcare, vision, and dental insurance, unlimited PTO, 401k, and a variety of perks for in-office employees.