Java Full Stack Developer

Overviewour

Slough, UK

about 2 months ago

Role details

Contract type

Temporary contract

Employment type

Part-time (≤ 32 hours)

Experience level

Expert

Experience required

10 years minimum

Working hours

Regular working hours

Job source

apply4u.co.uk

Tech stack

Java (Programming Language) Artificial Intelligence Amazon Web Services Code Review Continuous Integration Python (Programming Language) PostgreSQL Microsoft SQL Server Oracle (Applications) Performance Tuning Scrum Methodology Systems Development Life Cycle

+10 more

Redis Large Language Models Fastapi Apache Kafka Virtual Agents Restful APIs Cucumber (Software) Jbehave Docker Microservices

Job description

Role OverviewOur client is seeking a Senior Java Full Stack Developer to help design, build, and support complex Java/Python applications within a distributed, microservices-driven environment. You’ll work across global teams, contribute to an AI-focused engineering roadmap, and provide critical L3 production support to ensure stability and performance.

Key ResponsibilitiesDevelop and maintain Java & Python applications, microservices, and distributed systems.Work with global product, UX, and engineering teams to deliver high-quality solutions.Contribute across the full SDLC, ensuring scalable, secure, test-driven delivery.Support L3 production incident resolution, root-cause analysis, and preventive fixes.Perform code reviews, enforce best practices, and mentor junior engineers.Lead development tasks and uphold high engineering standards.

Requirements

Skills & ExperienceEssential:10+ years’ backend engineering experience.Strong Java, Python, microservices, REST APIs, distributed systems.RDBMS (Oracle/SQL Server/Postgres), CI/CD, Docker, Kubernetes.JVM tuning, performance optimisation, algorithms & data structures.L3 production support experience.Experience with LLMs, AWS, LangChain/LangGraph, and agentic AI frameworks.Desirable:Mentoring/technical leadership.Financial services experience.Spring Boot, Kafka, Redis, in-memory caching.BDD tools (Cucumber/JBehave/Karate).Agile/Scrum understanding.

Benefits & conditions

Location: London - Hybrid - 3 days per week onsiteStart Date: ASAPContract Rate: TBC, likely in the region of £500 per day inside IR35Duration: 6 to 12 months initially