Principal Java Engineer in Milton Keynes

Principal Java Engineer 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, diverse culture.
  • Other info: Diverse, woman-owned company with excellent career growth and low attrition rate.
  • Why this job: Join a team shaping the future of business technology and make a real impact.
  • Qualifications: 10+ years in Java development with strong cloud and performance optimisation skills.

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 Java Engineer in Milton Keynes employer: RE Partners

As a fast-growing business and technology consultancy, we offer a dynamic work environment that prioritises engineering excellence and innovation. Our hybrid model based in London allows for flexibility while fostering a collaborative culture where your expertise in Java can truly shine. With a strong focus on employee growth and a remarkable 7% attrition rate, we are committed to nurturing talent and providing meaningful opportunities for advancement in the tech industry.
RE Partners

Contact Detail:

RE Partners Recruiting Team

StudySmarter Expert Advice 🤫

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

✨Network Like a Pro

Get out there and connect with folks in the industry! Attend meetups, webinars, or even local tech events. The more people you know, the better your chances of landing that Principal Java Engineer role.

✨Show Off Your Skills

Don’t just talk about your experience; demonstrate it! Consider contributing to open-source projects or building your own applications. This way, you can showcase your Core Java and SpringBoot expertise in a tangible way.

✨Ace the Interview

Prepare for technical interviews by brushing up on low-latency systems and performance tuning. Practice coding challenges and be ready to discuss your past projects in detail. Confidence is key!

✨Apply Through Our Website

We want to hear from you directly! Apply through our website to ensure your application gets the attention it deserves. Plus, it shows you're genuinely interested in joining our awesome team.

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

Core Java
SpringBoot
Low-Latency Systems
High-Throughput Systems
AWS Services
Red Hat OpenShift
MongoDB
NoSQL/SQL Datastores
Performance Tuning
Fault Tolerance
Observability Improvements
Messaging Standards and Protocols
Collaborative Engineering
Clean Code Practices
Payments Processing

Some tips for your application 🫡

Tailor Your CV: Make sure your CV is tailored to the Principal Java Engineer 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 to demonstrate how you’ve optimised systems or improved performance in previous roles. We love seeing tangible results!

Apply Through Our Website: We encourage you to apply through our website for a smoother application process. It’s the best way for us to receive your application and ensures you don’t miss out on any important updates from our team!

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. Prepare examples that showcase your expertise in building low-latency, high-throughput systems.

✨Familiarise Yourself with Financial Systems

Since the role focuses on payments processing, it’s crucial to understand the messaging standards and protocols used in financial transactions. Research common challenges in this domain and be prepared to share your insights or experiences related to banking systems.

✨Cloud Knowledge is Key

Get comfortable with AWS services like ECS, EKS, and Lambda. Be ready to discuss how you've deployed and scaled applications in cloud environments, particularly Red Hat OpenShift. Highlight any experience you have with container security and performance tuning.

✨Show Your Collaborative Spirit

This role thrives in a collaborative environment, so be prepared to talk about how you’ve worked with DevOps, Product, and QA teams in the past. Share specific examples of how you contributed to production-grade solutions and drove improvements in performance and observability.

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

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