Senior Java Developer

Senior Java Developer

My customer is actively hiring a talented & eager Senior Java Developer to join their growing & dynamic team. The successful candidate will be responsible for designing, developing, and maintaining Java-based applications, contributing to the full software development lifecycle from concept to deployment and beyond. This role is ideal for a passionate and seasoned Senior Java Developer looking to further their career in a challenging and rewarding environment.

You will work on in-house systems, APIs, client reporting and web portal, as well as customising our third‑party trading system. You will translate complex business requirements into scalable, high‑quality software solutions. This is an opportunity to deepen your expertise in a capital markets environment as a Senior Java Developer while taking on team leadership and mentoring responsibilities — with direct exposure to cloud‑native infrastructure, advanced Java development, AI and a highly collaborative engineering culture.

• Design, develop and maintain in-house systems, APIs, reporting tools and the client web portal
• Customise and extend third‑party trading systems to meet business requirements
• Write clean, well‑tested code following SOLID principles, Design Patterns and Clean Code practices
• Apply TDD and BDD methodologies; maintain test coverage using JUnit, Spock and Mockito
• Participate in code reviews and contribute to continual improvement of engineering standards
• Manage and mentor a team of Java (and other) developers, supporting growth and career development
• Liaise with various stakeholders (IT and Business) to understand requirements and propose solutions to senior stakeholders

• 6+ years' Java development experience at a Financial Services company
• Java 11+, Spring/Spring Boot, multi‑threading, profiling, performance tuning, RMI
• Capital Markets knowledge or similar
• Experience in high‑quality software practices: TDD, Agile, automated builds/deployments
• Strong knowledge of CI build and deployment management tools
• Experience with test frameworks (JUnit/Spock) and mocking libraries (e.g. Mockito)
• Proficiency with Git and Maven