> Markdown version of [/jobs/ext/2208176-software-engineer](https://www.wearedevelopers.com/jobs/ext/2208176-software-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Engineer

- **Company:** ECM Selection Limited
- **Location:** Cambridge, UK
- **Experience:** Expert
- **Salary:** £80,000.0
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), User Authentication, ECMAScript, Node.Js, OAuth, Redis, Cloud Services, WebSocket, Media Technology, Caching, Restful APIs, Es2015
- **Published:** August 24, 2026
- **Apply:** https://www.ecmselection.co.uk/register/26399

## About the Role

* Degree in a relevant discipline or extensive experience in industry
 * Excellent knowledge of Node.js development using JavaScript ES6+ (ideally including Express)
 * Good understanding of RESTful design principles, WebSockets, authentication (e.g. OAuth) and caching (e.g. Redis)
 * Demonstrable skill writing robust and testable JavaScript code

## Description

You will be responsible for the design and development of APIs to interact with internal and external services as well as the development and maintenance of JavaScript code to run on specialist devices. You can expect to work in a collaborative, agile environment, with an international team, looking to satisfy customers on a variety of challenging projects.