Senior Java Engineer

Senior Java Engineer - 12 months London City/hybrid - £341 - fantastic financial client

Essential skills

• Strong Java fundamentals (Java 21 preferred) including core concepts (collections, concurrency, memory management).
• Solid experience with Spring Framework (Spring 4+) and Spring Boot 3.x.
• Experience building and consuming REST APIs.
• Good knowledge of React (version 17) and integration with Back End services.
• Strong understanding of web application architecture and Client Server communication.
• Experience with SQL and relational databases (eg PostgreSQL).
• Proficiency with version control (Git) and build tools (Maven/Gradle).
• Strong focus on clean code, unit testing, and code reviews.
• Familiar with Agile development practices.
• Comfortable working in Linux/Unix environments.
• 4-8+ years of software engineering experience.

Other desirable skills

• Experience with JSF/JSP applications and Legacy UI technologies.
• Familiarity with modern Front End practices and component-based architectures.
• Experience with CI/CD pipelines and testing practices.
• Exposure to Docker/containerization.
• Basic understanding of distributed systems.
• Familiarity with Spring ecosystem tooling.
• Knowledge of financial systems or trading platforms is a plus.

Role

• Contributes to design, development, and implementation of Back End services and web applications.
• Writes clean, maintainable, and well-tested code following established engineering practices.
• Participates in technical design discussions and collaborates with senior engineers and architects.
• Works closely with Front End developers to integrate Back End services with UI components.
• Supports troubleshooting, debugging, and performance optimization of applications.
• Breaks down user stories into technical tasks and delivers within agreed timelines.
• Collaborates effectively in Agile teams with product owners, QA, and other developers.
• Maintains and improves existing systems while ensuring stability and reliability.
• Builds positive relationships within the team and contributes to a collaborative environment.
• Communicates technical concepts clearly to both technical and non-technical stakeholders.
• Continuously develops technical expertise and stays up to date with modern technologies and frameworks.