Software Engineer, Infrastructure

We're looking for software engineers to join our Infrastructure Reliability Engineering team. In this role, you will build the distributed systems, services, and frameworks that make reliability a built-in property of the Whatnot platform. As scale, traffic, and complexity continue to grow, you will ensure our systems stay ahead of that curve. Whatnot's backend is built primarily in Python and Elixir, with Go used for performance-sensitive infrastructure components. You'll work across these languages depending on the problem, and we value engineers who are comfortable learning new stacks over those who are deep in only one. This is systems engineering work. You'll design and build components that sit in the critical path of Whatnot's traffic, testing infrastructure that validates system behavior before and during peak events, and developer-facing frameworks that raise the reliability floor across the entire platform. You will partner closely with product, platform, and infrastructure teams to embed reliability into system design, development workflows, and runtime behavior.