Interface Developer / Integration Developer (Java)

Role: Interface Developer / Integration Developer (Java)

Location: London, UK (2 to 3days Onsite)

Contract type

Department : Technology, AMD-Interfaces

Main purpose of the role:

The Interfaces team designs, builds, and supports the integration platforms that form a core part of the organisation?s system architecture. These platforms leverage in-house Java frameworks alongside IBM MQ messaging, API gateway technologies, and file transfer solutions.

This role is for a Senior Integration Developer who will work within the team to build, maintain, and enhance these platforms.

Key responsibilities:

1. Development & Engineering
  • Design, develop, and maintain integration solutions using Java and modern integration frameworks (e.g., Apache Camel, Spring Boot)
  • Build scalable, resilient message flows and routing logic across distributed systems
  • Integrate internal and external systems using messaging (IBM MQ) and APIs (REST/SOAP)
  • Contribute to microservices-based architectures
  • Ensure adherence to secure coding standards, SDLC, and change control processes
  • Participate in code reviews and champion engineering best practices
  • Proven ability to leverage AI-assisted development tools (e.g. GitHub Copilot) to enhance productivity, code quality, and delivery outcomes
2. Testing & Quality Assurance
  • Develop and maintain automated unit and integration tests (JUnit, Cucumber)
  • Contribute to test strategy and system test design
  • Support User Acceptance Testing (UAT) and validate test outcomes
  • Ensure high-quality, production-ready deliverables
3. Collaboration & Stakeholder Engagement
  • Work closely with front-office, back-office, and technology teams to define and deliver integration solutions
  • Act as a subject matter expert (SME) for integration platforms and middleware
  • Provide 3rd line support and guidance to production support teams
  • Contribute to continuous improvement initiatives across tooling, processes, and architecture
4. Documentation & Governance
  • Produce and maintain high-quality technical documentation
  • Ensure all solutions meet internal standards, security policies, and regulatory requirements
  • Follow established release management and deployment processes
  • Support audit and compliance activities where required
Skills and experience:

Essential

  • Strong expertise in Core Java (collections, concurrency, NIO)
  • Experience with Spring Boot, JPA, Hibernate
  • Solid understanding of integration patterns (Apache Camel)
  • Hands-on experience with IBM MQ (configuration, troubleshooting, performance tuning)
  • Strong experience building microservices and RESTful APIs
  • Knowledge of message formats and data transformation (XML, XSD, XSLT, JSON)
  • Experience with SQL databases and ORM frameworks
  • Familiarity with CI/CD pipelines (e.g., TeamCity, Git-based workflows)
  • Comfortable working in Linux environments (bash, SSH)
  • Understanding of API protocols (REST, SOAP)
  • Experience delivering systems in a front-office / trading environment
  • Knowledge of financial products / investment banking domain
Desirable
  • Experience with Apache Karaf
  • Exposure to API Gateway technologies
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