Product Engineer - Backend Developer

E2B; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Healthcare

Vision Insurance

Dental Insurance

Unlimited PTO

401k

On-site offices in SF & Prague

Job summary

E2B is hiring a backend engineer to own the services powering the Dashboard and SDK. You will primarily write Go APIs and data models, while occasionally wiring the Next.js frontend to finish end-to-end work.

You will design authentication, billing, and usage metering, and build real-time backends with WebSockets and SSE to stream logs and metrics to the UI. Expect ownership from planning through launch and ongoing iteration.

Qualifications

• 3-5+ years shipping production backend services with deep Go expertise.
• Strong API design with REST/RPC, contracts, versioning for frontend needs.
• Solid PostgreSQL skills: schema design, query optimization, migrations.
• Backend fundamentals: authentication/authorization, performance, real-time data flows.
• Working TypeScript competence; Next.js is a plus for frontend wiring.
• Ability to own projects from conception to launch and iterate.

Responsibilities

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

Skills

Go

REST API design

PostgreSQL

WebSockets

SSE

TypeScript

Go best practices

Tools

Next.js

Job description

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 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.