YC-backed Infracost is hiring a Senior Backend Engineer to build tools that help engineers find and fix cloud cost issues before production. The role focuses on Node.js and SQL, requiring experience with scaling systems for thousands of repositories and automating infrastructure fixes. This is a remote position for a team shifting FinOps left in developer workflows.

The company's platform plugs into tools like GitHub to show cost impact in pull requests and generate fixes. Recently, they scaled to support customers with tens of thousands of repositories and built an Issue Explorer for surfacing infrastructure problems. Their approach combines AI-generated changes with static analysis to open quality PRs automatically.

Founded in 2020 and backed by Sequoia, Infracost aims to tackle the $600B annual cloud spend by making cost visibility proactive. The team values customer focus, transparency, and fast execution. For engineers interested in cloud efficiency and tooling, this role offers a chance to shape how teams manage infrastructure costs.