Java Developer

Salary: £50,000 - 65,000 per year

Requirements:

• Great communication skills, with the ability to contribute to future product roadmaps
• Excellent Java development experience (Java 11+) in a production environment, including Spring Boot, dependency injection, and RESTful API design
• PostgreSQL skills, including schema design, complex query writing, index optimisation, and migration tooling such as Flyway or Liquibase
• Experience designing and documenting APIs using OpenAPI/Swagger
• Proficiency with build tools such as Maven or Gradle and a modern Java development workflow
• Understanding of software design principles such as SOLID, DRY, and Clean Architecture
• Familiarity with containerised deployment environments such as Docker and Kubernetes from a developer perspective
• Understanding of and interest in AI coding assistants such as Claude Code, GitHub Copilot, Cursor, or equivalent

Responsibilities:

• Work closely with our development team during the transition from an outsourced model to an in-house setup
• Participate in knowledge transfer activities, including code walkthroughs, pairing sessions, and documentation reviews with the outgoing external team
• Gain a thorough understanding of our current Java application architecture, including service boundaries, dependency injection patterns, build system, and deployment configuration
• Design and implement new back-end features, enhancements, and bug fixes in Java, following agreed coding standards and architectural principles
• Work on our PostgreSQL data model, including schema design, migration management, indexing strategy, and query optimisation
• Design, document, and maintain RESTful and/or GraphQL APIs, ensuring consistency, versioning, and thorough OpenAPI/Swagger documentation
• Identify, catalogue, and systematically address technical debt in collaboration with the wider team

Technologies:

• AI
• API
• Claude Code
• Copilot
• Cursor
• Docker
• Flyway
• GitHub
• Gradle
• GraphQL
• Java
• Kubernetes
• Liquibase
• Maven
• OpenAPI
• PostgreSQL
• Spring
• Spring Boot
• Swagger

More:

We are hiring an experienced Back End Developer to join our software development team in a hybrid role, working 2 days per week in the office. This position focuses on Java, PostgreSQL, and API development as we move our software engineering from an outsourced model to an in-house team. You will help transfer knowledge from the outgoing external team, contribute to the evolution of our application architecture, and play a key role in building, documenting, and improving our back-end systems.

last updated 31 week of 2026