Antithesis is an autonomous software testing platform that finds the bugs others miss. Backed by Amplify.
About the role
Nix. Lots of Nix. Nix for builds, Nix for infrastructure. Nix where you did not expect!
What they're looking for
- A functional, reactive notebook
- A streaming, analytic database
- (Semi-) formally proven infrastructure
- A custom, high-performance hypervisor
- ...and other projects
- The Culture
More about this role
We provide a platform that enables engineering teams to identify and resolve bugs that traditional testing approaches miss. Antithesis runs your entire system in a deterministic simulation, breaks it in every way imaginable, and hands you a root cause and a perfect reproduction — no flaky tests, no false positives, no "works on my machine". This allows engineering teams to debug faster and ship with greater confidence.
The rise of AI-generated code has made what we do more important than ever. Agents can write code faster than any human — but faster code isn't better code if it's buggy, stuck in review, or issues are slipping through the cracks undetected. The verification bottleneck is real and it's growing. This is exactly the problem Antithesis exists to solve. We've been quietly reinventing how the world thinks about software reliability, and we're just getting started.
We're well-funded, deeply technical, and building a platform that tackles one of the most complex yet important problems in modern software engineering. If that sounds like fun to you, keep reading.
About the Team
Engineers at Antithesis work across a wide range of domains, often developing their own tools...
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