Principal Java Engineer in London
Principal Java Engineer

Principal Java Engineer in London

London Temporary 48000 - 72000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Lead technical deep dives and write high-quality Java code for innovative retail solutions.
  • Company: Join Mindera, a friendly tech company passionate about crafting impactful software.
  • Benefits: Competitive rates, six-month contract, and a welcoming team environment.
  • Why this job: Make a real impact in the retail sector while working with cutting-edge technologies.
  • Qualifications: Proven experience in Java, cloud infrastructure, and strong communication skills.
  • Other info: Collaborative culture with opportunities for continuous learning and career growth.

The predicted salary is between 48000 - 72000 £ per year.

At Mindera, we craft software with people we love. We are 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.

    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.

    Benefits

    • Competitive Rates
    • Six month contract outside IR35 with possibility of extension
    • Friendly and welcoming team
    • Opportunity to work with one of the UK's leading Retailers

    At Mindera we use technology to build products we are proud of, with people we love. Software Engineering Applications, including Web and Mobile, are at the core of what we do at Mindera. We partner with our clients, to understand their product and deliver high performance, resilient and scalable software systems that create an impact on their users and businesses across the world. You get to work with a bunch of great people, where the whole team owns the project together. Our culture reflects our lean and self-organisation attitude. We encourage our colleagues to take risks, make decisions, work in a collaborative way and talk to everyone to enhance communication. We are proud of our work and we love to learn all and everything while navigating through an Agile, Lean and collaborative environment.

    Principal Java Engineer in London employer: Mindera

    At Mindera, we pride ourselves on fostering a collaborative and innovative work culture where every team member is valued. As a Principal Java Engineer, you'll enjoy competitive rates and the opportunity to work with one of the UK's leading retailers in a friendly environment that encourages continuous learning and professional growth. With a focus on Agile practices and a commitment to technical excellence, you'll be part of a team that not only builds high-quality software but also supports each other's development.
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    Contact Detail:

    Mindera Recruiting Team

    StudySmarter Expert Advice 🤫

    We think this is how you could land Principal Java Engineer in London

    ✨Tip Number 1

    Network like a pro! Reach out to your connections in the industry, especially those who work at Mindera or similar companies. A friendly chat can sometimes lead to job opportunities that aren't even advertised yet.

    ✨Tip Number 2

    Show off your skills! Prepare a portfolio or GitHub repository showcasing your best Java projects, especially those involving Spring Boot or Micronaut. This gives potential employers a taste of what you can do and sets you apart from the crowd.

    ✨Tip Number 3

    Ace the interview! Research common interview questions for Principal Java Engineers and practice your answers. Be ready to discuss your experience with payment systems and cloud infrastructure, as these are key for the role at Mindera.

    ✨Tip Number 4

    Apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're genuinely interested in joining the Mindera crew. Don’t miss out on this opportunity!

    We think you need these skills to ace Principal Java Engineer in London

    Java 17+
    Spring Boot
    Micronaut
    Kotlin
    Kafka
    Event-Driven Architecture
    Microservices
    Cloud Infrastructure (Azure)
    CI/CD
    Kubernetes
    Payment Systems
    PSP Integrations
    Regulatory and Compliance Standards (PCI DSS, SCA, PSD2)
    Agile/Scrum
    Strong Communication Skills

    Some tips for your application 🫡

    Tailor Your CV: Make sure your CV is tailored to the Principal Java Engineer role. Highlight your experience with Java 17+, Spring Boot, and any relevant retail projects. We want to see how your skills align with what we're looking for!

    Showcase Your Projects: Include specific examples of projects you've worked on that demonstrate your hands-on software development skills. If you've built robust services or managed CI/CD pipelines, let us know! This helps us understand your practical experience.

    Be Clear and Concise: When writing your application, keep it clear and to the point. Use bullet points where possible to make it easy for us to read. We appreciate straightforward communication, especially when it comes to complex technical concepts.

    Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of applications and ensures you get all the updates directly from us. Plus, we love seeing applications come in through our own platform!

    How to prepare for a job interview at Mindera

    ✨Know Your Java Inside Out

    Make sure you brush up on your Java skills, especially with Java 17+ and frameworks like Spring Boot or Micronaut. Be ready to discuss your past projects and how you've tackled challenges in backend-heavy environments.

    ✨Show Off Your Retail Experience

    Since the role requires strong retail experience, prepare examples of how you've worked on payment systems, fraud detection, or integrations with payment gateways. Highlight any specific achievements that demonstrate your impact in this area.

    ✨Get Familiar with Cloud and DevOps

    Understand cloud-native systems, particularly on Azure, and be ready to talk about your experience with CI/CD pipelines and tools like Terraform and Kubernetes. Mention any hands-on experience you have with monitoring and observability tools as well.

    ✨Emphasise Collaboration and Mentoring

    Mindera values teamwork and mentoring, so think of examples where you've led technical discussions or supported junior engineers. Be prepared to discuss how you promote best practices in code review and operational support.

    Principal Java Engineer in London
    Mindera
    Location: London
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    M
    • Principal Java Engineer in London

      London
      Temporary
      48000 - 72000 £ / year (est.)
    • M

      Mindera

      50-100
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