Senior Full Stack Developer (JavaScript + Automation Testing)
Location: Remote (UK-based with occasional team meetups)
Salary: £55,000–£70,000 (depending on experience)
Employment Type: Full-time
About the Role
A fast-growing tech company is seeking a Senior Full Stack Developer to lead high-quality development and automation testing initiatives. This is a 100% hands-on technical role where the successful candidate will take ownership of the full stack (Node.js, React, GraphQL) while driving robust testing practices across the codebase.
The client is looking for someone who can set the standard for test coverage and documentation, with the autonomy to implement best practices. This role offers the opportunity to make a direct impact on product stability while working within a collaborative, low-ego team.
Key Responsibilities
* Develop and maintain full-stack applications using React, Node.js, GraphQL, and PostgreSQL/MongoDB
* Lead automation testing efforts—implementing, improving, and documenting test suites (e.g., Jest, Cypress, Ghost Inspector)
* Ensure high test coverage and promote testing best practices across the development team
* Collaborate with product and DevOps teams to deliver secure, stable features efficiently
Essential Skills & Experience
* 3+ years’ professional experience with full-stack JavaScript (React + Node.js)
* Strong proficiency in GraphQL and modern databases (SQL/NoSQL)
* Demonstrable expertise in test automation (Jest, Mocha, Cypress, or similar)
* Ability to define and implement testing strategies—specific tools are flexible
* Pragmatic approach to balancing delivery speed with code quality
Desirable Qualifications
* Background in regulated industries (e.g., EdTech, healthcare, finance)
* Familiarity with AWS services, CI/CD pipelines, or containerisation (Docker)
Benefits & Culture
* Remote-first working model with optional in-person meetups
* Early-finish Fridays and competitive holiday allowance
* Private healthcare and professional development budget
* Supportive, collaborative environment that values technical excellence
Note: This role does not offer visa sponsorship. Applicants must be legally authorised to work in the UK.