Senior Software Engineer - Remote API & Integrations

First Up is seeking a Remote Senior Software Engineer to design and implement integrations with enterprise HRIS platforms and build scalable public APIs. You will own production health and contribute to on-call rotations in a “you build it, you run it” environment.

You will work across frontend (React.js) and backend (Node.js/TypeScript) stacks, with AWS, Kubernetes, Docker, Helm, and Datadog for observability, targeting UK and international customers.