Open roleExternal
Principal Java Engineer - Retail
- london, england, United Kingdom
- Contract
- £70 - £90 Per Hour
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
What the job involves
- 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 GitHub Actions and ensure smooth delivery to production ,
- Own monitoring, alerting, and observability, using tools like OpenTelemetry 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