Interface / Integration Developer (Java)

Interface / Integration Developer (Java)

Location: London, UK (Hybrid – 2–3 days/week)

Job Type: Contract

Role Overview

We are seeking an experienced Interface / Integration Developer (Java) to design, develop, and support enterprise integration platforms. You will build scalable integration solutions using Java, IBM MQ, APIs, and microservices while collaborating with business and technology teams in a fast-paced financial services environment.

Key Responsibilities

Design, develop, and maintain Java-based integration solutions using Spring Boot and Apache Camel.

Build scalable microservices, REST/SOAP APIs, and IBM MQ message flows.

Develop automated tests (JUnit/Cucumber) and support UAT.

Participate in code reviews and follow secure SDLC and CI/CD practices.

Provide 3rd line production support and troubleshoot integration issues.

Collaborate with cross-functional stakeholders to deliver high-quality solutions.

Produce technical documentation and ensure compliance with governance standards.

Utilize AI-assisted development tools (e.g., GitHub Copilot) to improve delivery.

Required Skills

Strong Core Java (Collections, Concurrency, NIO)

Spring Boot, JPA, Hibernate

Apache Camel and integration patterns

IBM MQ (configuration, troubleshooting, performance tuning)

Microservices, REST/SOAP APIs

XML, XSD, XSLT, JSON

SQL & ORM frameworks

CI/CD (Git, TeamCity)

Linux (Bash, SSH)

Experience in Front Office / Trading environments

Knowledge of Investment Banking / Financial Products

Nice to Have

Apache Karaf

API Gateway technologies

Soft Skills

Strong communication and stakeholder management

Analytical problem-solving mindset

Self-driven with strong ownership

Ability to work under pressure in fast-paced environments

Detail-oriented and collaborative