Principal Java Engineer - Retail job opportunity at Mindera.

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Date2025-11-06T11:15:42.732Z bot
Mindera Principal Java Engineer - Retail
Experience: General
Pattern: Full-time
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degreeGeneral
loacation London, United Kingdom
loacation London....United Kingdom

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! Please note: This is a six month contract that sits outside IR35. You will be required to work in Paddington 3 days a week. What does the role involve? Lead technical deep dives and knowledge sharing in the teams, anticipating challenges and proposing solutions Start influencing product and business decisions Hands-on Software Development: 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. Cloud & DevOps Practices: Build and support cloud-native systems on the cloud (preferably Azure) using Terraform and Kubernetes. Manage CI/CD pipelines using GitHub Actions and ensure smooth delivery to production. Own monitoring, alerting, and observability, using tools like OpenTelemetry and Dynatrace. Security & Compliance: Champion secure coding practices and data protection across services. Collaboration & Mentoring: 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. Continuous Improvement: Continuously improve platform reliability, performance, and cost-efficiency. Stay up-to-date with technology trends and proactively identify innovation opportunities. 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.

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