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# Full Stack Engineer

- **Company:** Sagacity
- **Location:** London, United Kingdom
- **Experience:** Experienced
- **Salary:** £51,715
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Data Infrastructure, Standard Sql, Next.js, TypeScript, Web Applications, ReactJS, Apache Spark, Maintaining Code, Databricks
- **Published:** November 7, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5956083055

## About the Role

* By three months, you're delivering refined tickets independently
 * By six months, you own one or two platform areas, including their support and documentation
 * Your features are reliable, well tested and rarely need rework
 * You keep people updated on progress, risks and blockers without needing to be chased
 * Within your first year, you're trusted with client sensitive work
 * You're a dependable member of the team that others plan around

Competencies & Behaviours

 * Two to four years building production web applications in TypeScript and React. Next.js experience would be a bonus
 * Comfortable across the stack. You've built and consumed APIs and you write solid SQL
 * Experience maintaining code you didn't write, and standing behind your work once it has shipped
 * You like owning a problem until it's properly solved
 * Exposure to Databricks, Spark or a similar data platform would be a bonus
 * You think about who will use what you're building and whether it actually solves their problem
 * You communicate clearly and honestly, and you're kind about it
 * You ask questions early instead of working on assumptions
 * Able to juggle several projects, planning back from deadlines and leaving time for testing and QA
 * Flexible, self motivated, calm under pressure and keen to keep developing
 * Experience in telecoms, utilities, banking or a data consultancy would be useful
 * Able to travel around the UK
 * Able to work from our office at least two days a week
 * The right to work in the UK