Payments Senior Developer

Insight Global is looking for a Payments Senior Developer to join our client's dynamic and growing team.

What You’ll Do:

  • Develop and enhance Java‐based microservices , REST APIs, and event‐driven components.
  • Implement solutions for ISO 20022 message formats , transformations (XML/JSON), validations, and routing.
  • Build integrations using Mule ESB (or similar), messaging patterns, and Kafka/event streams .
  • Write performant SQL/PL‐SQL queries for Oracle‐based transactional systems.
  • Contribute to system designs, code reviews, and technical discussions (not full architectural ownership).
  • Champion quality through TDD/BDD , automated testing (JUnit, Cucumber), and CI/CD best practices.
  • Work closely with DevOps/SRE to support smooth builds, deployments, and production readiness.
  • Collaborate effectively within Agile squads and across dependent teams, providing mentorship where needed.

What We’re Looking For:

  • Multiple years hands‐on software engineering (preferably within financial services or other high‐scale environments).
  • Strong experience with Java/J2EE , microservices, REST APIs, and event‐driven architecture.
  • Experience working with payments systems or messages (CHAPS, TARGET2, SWIFT, RTP, ISO 20022).
  • Proficiency in Oracle SQL/PL‐SQL , including writing efficient queries for high‐volume systems.
  • Solid understanding of XML/JSON structures and message mapping/transformation.
  • Experience with Mule ESB or equivalent middleware , messaging tools, and Kafka .
  • Strong understanding of Agile delivery, CI/CD pipelines, and DevOps practices.
  • Skilled in unit/integration testing frameworks (JUnit, Cucumber/Litmus).
  • Good communication skills and ability to collaborate in multi‐team delivery environments.

If you’re ready to take on this exciting new opportunity we’d love to hear from you!

Apply now or reach out for more details!

Job Details

Company
Insight Global
Location
Chester, Cheshire, UK
Posted