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# Full Stack Engineer

- **Company:** Y TREE
- **Location:** Greater London, UK
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Relational Databases, Database Theory, DevOps, Programming Tools, PostgreSQL, Cloud Services, TypeScript, ReactJS, Spring-boot, Backend, Kotlin, Event Driven Architecture, Containerization, Kubernetes, Apache Kafka, Graphql, Docker, Microservices
- **Published:** September 9, 2026
- **Apply:** https://www.collegerecruiter.com/job/2856365568-full-stack-engineer

## About the Role

* Experience: 3+ years of experience as a front-end engineer utilizing JavaScript/TypeScript and the React library.
 * AI-Assisted Workflow: Daily practical experience with AI-assisted or agentic development tools, with the engineering judgment needed to audit and refine AI outputs.
 * Modern Engineering Practices: Familiarity with TDD principles, clean architecture concepts, and consuming APIs (e.g., GraphQL).
 * Mindset: An independent, critical thinker who thrives in collaborative, small-team environments and values continuous feedback.

Bonus Points

 * Backend development experience in Java or Kotlin (ideally Spring Boot).
 * Understanding of microservices, database concepts (RDBMS/PostgreSQL), and event-driven architectures (Kafka).
 * Familiarity with containerization (Docker) or cloud deployments (AWS/Kubernetes).

## Description

* Full Stack Adaptability: Take ownership of domain software, contributing to our event-driven microservices platform when backend support is needed.
 * AI Engineering: Leverage agentic coding tools (e.g., Claude Code) across the full development lifecycle, reviewing and hardening AI-generated outputs to maintain rigorous quality standards.
 * Agile Delivery: Collaborate in a two-week delivery window to plan, develop, and release secure, cost-efficient features., * Health & Wellbeing: Private healthcare through Vitality (including 50% off premium gym memberships) and an Employee Assistance Programme.
 * True Time Off: 25 days of annual leave where we expect you to fully unplug-no booking leave required for quick life appointments.
 * Financial Future: 3% standard employer pension contribution, with enhanced company matches available via salary sacrifice.
 * Environment: A welcoming, dog-friendly office with break-out spaces and silent booths, alongside regular, well-balanced team socials.
 * Extra Perks: Electric car schemes, family-friendly policies, and support towards professional qualifications.


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