Location
Prague Czech Republic
Prague Czech Republic
Salary
(Yearly)
(Yearly)
(Yearly)
(Yearly)
(Yearly)
Salary information is not provided for this position.
Undisclosed
-
Category
Software Engineer
Date posted
July 10, 2025
Job type
Full-time
Experience level
Mid level

Job Description

About the role

You will be building the next cloud platform for running AI software — a cloud where AI apps are building other software apps.

Your job will be:

  1. Building a distributed system for millions and billions of AI agents running on E2B

  2. Building an orchestrator for placing sandboxes in the right nodes

  3. Adding support for sandbox live migrations

  4. Making sure our self-hosting DX is as smooth as possible (we’re open-source)

  5. Not letting our sandboxes take more than 100ms to start (starting with the user hitting enter)

  6. Scaling to millions and later billions of sandboxes running at the same time

  7. Building an observability stack starting at the kernel level of virtual machines

We’re looking for an infrastructure engineer with a diabolical obsession with making things run fast and efficiently and running A LOT of them at the same time.

If you aren’t afraid of going into the kernel of a VM and extending it to fit our needs and words like Firecracker, eBPF, UFFD, block device, L4 load balancing, noisy neighbor problem, or hugepages sound exciting to you, we want to hear from you!

What we’re looking for

  • 5+ years building infrastructure, especially distributed systems

  • Experience building infrastructure on scale

  • Excited to work in person from Prague on a devtool product

  • Detail oriented with a great taste

  • Excited to work closely with our users

  • Not being afraid to take ownership of the part of our product

    • 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

  • Work at a fast growing startup at an early team (we grow 20%-100% MoM)

  • We ship fast but don’t release junk

  • We like hard work and problems. Challenges mean potential value.

  • We have a long runway and can offer a competitive salary for the startup at our stage

  • Work closely with other AI companies on the edge of what’s possible today

  • Dogfooding our own product on projects like Fragments

  • No meetings, highly writing and transparent culture

  • You’re the decision maker in day-to-day, important product and roadmap decisions are on Vasek (CEO) and Tomas (CTO)

  • Spend 10-20% of the roadmap on highly experimental projects

Hiring process

We aim to have the whole process done in 7-10 days. We understand that it’s important to move fast and try to follow up in 24 hours after each stage.

  1. 30-minute call with Anet (Head of Operations). We’ll go over your past work experience and what you’re looking for to make sure this would be a good fit for both of us.

  2. First technical interview with Tomas (CTO). About 1 hour long call. You’ll get asked thorough technical questions. Often these are questions about problems that we ourselves experienced while building E2B.

  3. Live Coding. Another 1 hour long call. Expect live coding on this call. We’ll ask you to solve specific problems (don’t worry, it’s not a leet code) that are related to your role.

  4. Call with Vasek (CEO). Last 30-minute call with the CEO to talk more about the role and answer any of your questions.

  5. One day of in-person hacking at our office (paid). We invite you to our office to work on the product with us. This is a great opportunity for all of us to try how it’s working together and for you to meet the team.

  6. Decision and potential offer.

Companies size
11-50
employees
Founded in
2023
Headquaters
Prague, Czech Republic
Country
Czechia
Industry
Technology, Information and Internet
Social media
Visit website

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