Product Engineer - Backend Developer

ABOUT E2B E2B is a fast-growing Series A startup with 8-figure revenue. We've raised over $37M since our founding in 2023. Our customers include companies like Microsoft, Perplexity, Hugging Face, Manus, and Groq. We're building the next hyperscaler for AI agents. ABOUT THE ROLE Your job will be to own and scale the backend that powers the E2B Dashboard https://github.com/e2b-dev/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 — 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.