Principal Java Engineer; Retail
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-05-30
Listing for:
Mindera
Full Time
position Listed on 2026-05-30
Job specializations:
-
Software Development
Cloud Engineer - Software, Software Engineer, Java Developer, DevOps
Job Description & How to Apply Below
Location: Greater London
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 Dev Ops culture and test-driven mindset
- At Mindera, we craft software with people we love. We’re looking for a Principal Java Engineer with strong Retail experience who can join our crew! ,
- This is a six month contract that sits outside IR35 ,
- Lead technical deep dives and knowledge sharing in the teams, anticipating challenges and proposing solutions ,
- Start influencing product and business decisions ,
- Write high-quality Java code using frameworks such as Spring Boot or Micronaut ,
- Build robust services that support secure, high-volume payment transactions ,
- Develop integrations with acquiring banks, payment gateways, and fraud detection tools ,
- Build and support cloud-native systems on the cloud (preferably Azure) using Terraform and Kubernetes ,
- Manage CI/CD pipelines using Git Hub Actions and ensure smooth delivery to production ,
- Own monitoring, alerting, and observability, using tools like Open Telemetry and Dynatrace ,
- Champion secure coding practices and data protection across services ,
- Work closely with product owners, engineering leads, and other stakeholders to shape technical solutions ,
- Mentor and support more junior/mid/senior engineers, driving technical excellence across the board ,
- Help establish and promote best practices around code review, testing, delivery, and operational support ,
- Continuously improve platform reliability, performance, and cost-efficiency ,
- Stay up-to-date with technology trends and proactively identify innovation opportunities
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