Systems Engineer

Company: E2b
Location: San Francisco
Posted on: June 1, 2025

Job Description:

Location: San Francisco, in-person onlyEquity: 0.1%-1.5%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:

• Building a distributed system for tens/hundreds of millions and eventually billions of AI agents running on E2B
• Making sure our self-hosting DX is as smooth as possible (we're open-source)
• Not letting our sandboxes take more than 100ms to start (starting with the user hitting enter)
• Scaling to millions and later billions of sandboxes running at the same time
• Building an observability stack starting at the kernel level of virtual machinesWe'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, 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 San Francisco 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 productIf 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 projectsHiring processWe 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.
• 30-minute call with Vasek (CEO). 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.
• 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.
• Second technical interview. Another 1-2 hours 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.
• 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.
• Last call with Vasek. Last 30-minute call with the CEO to talk more about the role and answer any of your questions.Your CV, past projects, work, and GitHubYour current location. If not based in SF, your plans to relocate, and if you can legally work in the United States.We are building the team in person in San Francisco. We don't accept remote candidates.
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Keywords: E2b, Livermore , Systems Engineer, Other , San Francisco, California