> Markdown version of [/jobs/ext/2206422-javascript-developer](https://www.wearedevelopers.com/jobs/ext/2206422-javascript-developer). 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). --- # JavaScript Developer - **Company:** ECM Selection Limited - **Location:** Cambridge, UK - **Salary:** £25,000.0 - £35,000.0 - **Contract:** Permanent contract - **Skills:** Java (Programming Language), JavaScript (Programming Language), C Sharp (Programming Language), Computer Networks, Github, Human-Computer Interaction, JSON, Software Engineering, TypeScript, Web Applications, ReactJS, Free and Open-Source Software - **Published:** August 24, 2026 - **Apply:** https://www.ecmselection.co.uk/register/26031 ## About the Role This role is with a Cambridge start-up, commercially successful, and actively growing their development team. They are seeking an enthusiastic JavaScript Developer to help create the user interface for their software which controls high performance connectivity hardware. As a JavaScript Developer, you would create new features and capabilities and help the company open up new market opportunities. The successful candidate will be someone for whom software engineering is a passion as well as a career, and who enjoys the challenge of creating well-designed web applications based around JavaScript. A solid understanding of the JavaScript language will be essential. Key skills: * Good aptitude with JavaScript and JSON demonstrated by example code. Either an impressive hobby project or substantial open-source software contributions. This should be accessible via GitHub or similar platform (or even zip file, tar archive etc.) * A broad understanding of computer networking technologies * A good degree in a STEM subject from a well-known university * Full right to work in the UK without restriction, time limit, or sponsorship The following skills are not essential but would be beneficial: * TypeScript, React, C# or Java * Understanding of software engineering best practice Joining at an early stage offers the opportunity to get involved with all aspects of their software and to broaden both your technical and your leadership skills as the company expands. ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [How to Stop Choosing JavaScript Frameworks and Start Living](https://www.wearedevelopers.com/videos/118-how-to-stop-choosing-javascript-frameworks-and-start-living) - [Bringing AI Model Testing and Prompt Management to Your Codebase with GitHub Models](https://www.wearedevelopers.com/videos/1536-bringing-ai-model-testing-and-prompt-management-to-your-codebase-with-github-models) - [Coffee with Developers - Andrew Taylor - CODE100 Manchester](https://www.wearedevelopers.com/videos/888-coffee-with-developers-andrew-taylor-code100-manchester) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Frontend Developer Salary in The UK](https://www.wearedevelopers.com/magazine/233-frontend-developer-salary-in-the-uk) - [7 Most Popular Web Developer Jobs in Europe](https://www.wearedevelopers.com/magazine/163-7-most-popular-web-developer-jobs-in-europe)