Principal Engineer - Java in Milton Keynes
Principal Engineer - Java

Principal Engineer - Java in Milton Keynes

Milton Keynes Full-Time 80000 - 100000 £ / year (est.) Home office (partial)
RE Partners

At a Glance

  • Tasks: Design and optimise high-performance backend systems using Java in a collaborative environment.
  • Company: Fast-growing tech consultancy with a focus on digital transformation and client success.
  • Benefits: Hybrid work model, competitive salary, and a supportive culture with low attrition.
  • Other info: Emphasis on engineering autonomy and clean code in a fast-paced culture.
  • Why this job: Join a diverse team and shape the future of business technology consulting.
  • Qualifications: 10+ years in Java development, strong AWS experience, and knowledge of payments processing.

The predicted salary is between 80000 - 100000 £ per year.

Who We Are: We are a fast growing business and technology consultant company co-founded in 2019. We offer a custom-tailored, white-glove engineering service fit for our clients, because a digital transformation is more than just technology. With a successful track record of being a preferred vendor for Fortune 500 companies and as a trusted partner for some of the industry’s leading companies, our global talent has helped many clients achieve their goals.

We are seeking an experienced and opinionated Principal Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. This hybrid role is based in the UK and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you.

  • Design, develop, and optimize low-latency, high-throughput backend systems using Java.
  • Work with messaging standards and protocols commonly used in financial transactions.
  • Deploy, monitor, and scale applications in Red Hat OpenShift and AWS cloud environments.
  • Integrate with MongoDB and other NoSQL/SQL datastores for real-time data management.
  • Collaborate with DevOps, Product, and QA teams to ensure production-grade solutions.
  • Drive performance tuning, fault tolerance, and observability improvements across services.

10+ years of experience in Java development with a focus on performance and memory optimization.

  • Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc.
  • Prior experience in Payments Processing, financial services, or banking systems.
  • Exposure to container security and performance tuning on OpenShift.
  • Hybrid work model in London, UK.
  • Collaborative, fast-paced, and engineering-driven culture.
  • Emphasis on engineering autonomy, architectural decision-making, and clean code.

Join us in shaping the future of business technology consulting and transforming the way organizations thrive in a digital world. As a diverse, woman-owned global business, we pride ourselves on keeping talent happy – our 7% attrition rate speaks volumes. Bring your talented friends along and earn a referral bonus.

Equal Opportunity Employer: We are an equal opportunity employer and welcome applications from all qualified individuals regardless of race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, disability, or veteran status.

Principal Engineer - Java in Milton Keynes employer: RE Partners

As a fast-growing business and technology consultancy, we offer an exceptional work environment that prioritises engineering autonomy and collaboration. Our hybrid model based in London allows for flexibility while working on cutting-edge projects in the payments processing domain, providing ample opportunities for professional growth and development. With a strong focus on employee satisfaction reflected in our low attrition rate, we are committed to fostering a diverse and inclusive culture where every team member can thrive.
RE Partners

Contact Detail:

RE Partners Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Engineer - Java in Milton Keynes

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can put in a good word for you.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub repository showcasing your Java projects and contributions. This gives potential employers a taste of what you can do and sets you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on your technical knowledge and soft skills. Practice coding challenges and be ready to discuss your past experiences in detail. We want to see how you think and solve problems!

✨Tip Number 4

Apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who are genuinely interested in joining our team and contributing to our collaborative culture.

We think you need these skills to ace Principal Engineer - Java in Milton Keynes

Core Java
SpringBoot
Low-Latency Systems
High-Throughput Systems
AWS Services (ECS, EKS, Lambda, S3)
MongoDB
NoSQL/SQL Datastores
Performance Tuning
Fault Tolerance
Observability Improvements
Messaging Standards and Protocols
Container Security
Red Hat OpenShift
Collaboration with DevOps, Product, and QA Teams
Architectural Decision-Making

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Principal Java Developer role. Highlight your experience with Core Java, SpringBoot, and any relevant projects in payments processing. We want to see how your skills align with what we’re looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for performance and collaborative engineering culture. Let us know why you’re excited about this opportunity and how you can contribute to our team.

Showcase Your Achievements: Don’t just list your responsibilities; showcase your achievements! Use metrics where possible to demonstrate your impact in previous roles, especially in areas like performance tuning and cloud deployments. We love seeing results!

Apply Through Our Website: We encourage you to apply through our website for a smoother application process. It helps us keep track of your application and ensures you don’t miss out on any important updates. We can’t wait to hear from you!

How to prepare for a job interview at RE Partners

✨Know Your Java Inside Out

Make sure you brush up on your Core Java and SpringBoot skills. Be ready to discuss performance optimisation techniques and how you've applied them in past projects. They’ll want to see that you can not only code but also think critically about performance.

✨Familiarise Yourself with Financial Systems

Since this role is focused on payments processing, it’s crucial to understand the messaging standards and protocols used in financial transactions. Do some research on common practices in the industry and be prepared to share your insights during the interview.

✨Showcase Your Cloud Experience

Highlight your experience with AWS services like ECS, EKS, and Lambda. Be ready to discuss how you've deployed and scaled applications in cloud environments, particularly in Red Hat OpenShift. Real-world examples will make your experience stand out.

✨Emphasise Collaboration and Autonomy

This company values a collaborative yet opinionated engineering culture. Share examples of how you've worked with cross-functional teams, like DevOps and QA, to deliver production-grade solutions. Show that you can balance teamwork with independent decision-making.

Principal Engineer - Java in Milton Keynes
RE Partners
Location: Milton Keynes

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