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🥝 Principal Java Engineer (Retail)
Mindera | london, United-Kingdom | Posted June 15, 2026
Job Description
Requirements
- Proven experience as a Principal Java Engineer in backend-heavy environments in teams having multiple levels of engineering
,- Strong experience in Java 17+, ideally with experience in using Spring Boot or Micronaut. Kotlin experience is a bonus. If the applicant does not have experience they must show willingness to learn Kotlin
,- Hands-on knowledge of Kafka, event-driven architecture, enterprise integration patterns and Microservices
,- Solid understanding of payment systems and PSP integrations, including fraud, tokenisation, and settlement flows
,- Experience with cloud infrastructure (Azure preferred), CI/CD, and Kubernetes
,- Working knowledge of regulatory and compliance standards (PCI DSS, SCA, PSD2)
,- Strong communication skills and the ability to explain complex technical concepts to a range of audiences
,- Experience working in Agile/Scrum teams with a DevOps culture and test-driven mindset <...