Builds secure, scalable Java backend services and REST APIs using Spring Boot, integrates systems, and optimizes performance in a collaborative engineering team.
# Java Backend Developer,November 30, 2025### Job Description**On behalf of our client, we are seeking a Java Backend Developer – London, UK (Full-Time Permanent Role).**Our client, a fast-growing technology organisation, is looking for a skilled Java Backend Developer to build secure, scalable backend services and high-performance APIs supporting modern digital products. You’ll join a collaborative engineering team working across platform development, system integrations, and new feature delivery. This is a hands-on role ideal for someone who enjoys solving complex backend challenges and contributing to architectural decisions.## **Key Responsibilities**Design, develop, and maintain backend services and microservices using Java. Build scalable, secure REST APIs and system integrations. Write clean, maintainable, and well-tested code following best practices. Collaborate with frontend developers, product teams, and architects to deliver new functionalities. Contribute to system design, performance optimisation, and code reviews. Ensure reliability, scalability, and security across backend systems. Support continuous delivery pipelines and participate in Agile ceremonies.## **Key Requirements**4+ years of backend development experience with Java (Java 11+ preferred). Strong knowledge of Spring Boot, Spring Framework, or Micronaut/Quarkus. Experience building RESTful APIs and distributed backend systems. Good understanding of SQL and relational databases (PostgreSQL, MySQL, or similar). Familiarity with cloud environments such as AWS, Azure, or GCP. Experience with CI/CD tools, automated testing, and containerisation (Docker). Strong problem-solving skills and ability to work in cross-functional teams. Excellent English; eligibility to work in the UK is required.## **Nice to Have**Experience with Kafka, RabbitMQ, or event-driven architectures Knowledge of Kubernetes or Terraform Exposure to fintech, e-commerce, or SaaS platforms## **Additional Information** Location: London, UK — Hybrid (2–3 days on-site per week) Role Type: Full-Time, Permanent Start Date: ASAPLocation,Experience levelMid–Senior level## Work Location