Java Engineer Java, Microservices, API

Location: London, United Kingdom (Hybrid - Minimum 2 days onsite/week)?? Start Date: Immediate? Engagement Type: Contract - Outside IR35, 12-month initial term (with potential for extension or permanent employment) Industry: Financial Services / Technology Consulting

We are seeking a highly capable Java Engineer to join a newly established Centre of Excellence (CoE) focused on delivering secure, scalable, and production-grade digital solutions for the financial services sector.

This is a hands-on engineering role ideal for someone with strong experience in Java, Spring Boot, microservices, and API development, who thrives in collaborative, high-accountability environments. The successful candidate will contribute to backend service design, secure API delivery, and the development of reusable engineering assets across client engagements.

• Design, develop, and maintain backend services using Java and Spring Boot
• Build and integrate secure APIs aligned with industry standards (e.g., OAuth2, OpenID Connect)
• Contribute to the development of microservices architectures and distributed systems
• Collaborate with frontend, DevOps, and QA teams to deliver cohesive, end-to-end solutions
• Participate in technical design sessions, code reviews, and architecture discussions
• Support the definition and evolution of CoE engineering standards and reusable components
• Ensure adherence to Agile delivery practices, CI/CD pipelines, and DevSecOps principles

• Strong hands-on experience with Java, Spring Boot, and enterprise-grade backend development
• Proven experience designing and implementing secure APIs and service integrations
• Solid understanding of microservices architecture, service orchestration, and distributed systems
• Experience working in regulated environments such as banking, fintech, or insurance
• Familiarity with CI/CD pipelines, containerisation (e.g., Docker), and cloud platforms (e.g., AWS, Azure)
• Prior experience working in or contributing to a Centre of Excellence team
• Excellent communication skills and ability to collaborate across multidisciplinary teams

• Exposure to event-driven architectures and messaging systems (e.g., Kafka)
• Experience with Infrastructure as Code (e.g., Terraform, Ansible)
• Familiarity with observability tools and performance tuning
• Ability to mentor junior engineers and contribute to backend design leadership
• Prior consulting experience or experience in client-facing roles

• Outside IR35
• 12-month initial contract with potential for extension or permanent employment
• Hybrid working model: minimum 2 days onsite in London, with flexibility to travel to other UK client sites as required
• Part of a long-term strategic capability within a joint consulting and technology delivery partnership
• This is a strategic, reusable engineering role

• A high-impact role within a purpose-built Centre of Excellence
• Opportunities to work on complex, high-value projects in the financial services sector
• A collaborative, delivery-focused culture committed to engineering excellence
• Long-term career development within a respected and expanding consulting capability

Interested? Apply now or reach out directly for a confidential conversation.