Senior Backend / Full Stack Engineer (Contract) – API Team | Outside IR35/B2B - Remote
Evantis is working with a fast-moving tech company that’s building out a new API engineering team to power the next generation of partner and customer integrations.
We’re looking for multiple engineers with strong backend experience in Node.js/ TypeScript and the ability to design, build, and deliver APIs that will serve as the foundation for future product expansion.
What you’ll be doing
* Designing and developing robust APIs and microservices in Node.js / TypeScript.
* Building plug-and-play integrations and widgets that make it easier for external partners to connect quickly.
* Improving the API layer — authentication, documentation, and developer experience.
* Working closely with internal product and engineering teams to deliver scalable, well-tested solutions.
* Experimenting with new technologies, including AI-driven features and integrations (ACP/AP2).
* Operating in a startup-style environment, where priorities evolve week to week, and delivery speed and quality both matter.
What we’re looking for
* Strong background in backend engineering, ideally 7+ years’ experience.
* Expert in Node.js, TypeScript, REST / GraphQL APIs, and related tooling.
* Comfortable working across cloud environments (AWS preferred) and CI/CD pipelines.
* Experience building integrations, SDKs, or lightweight plugins (WordPress, Shopify, etc.) is a plus.
* Autonomous, delivery-focused, and confident in taking ownership from idea to deployment.
* Curious about or experienced with AI-assisted development tools like Copilot or ChatGPT.
Details
* Location: Fully Remote (UK or EU timezone overlap)
* Start: ASAP
* Interviews are taking place ASAP
If this sounds of interest, please apply.