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: Emphasis on engineering autonomy and excellent career growth opportunities.
- 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 performance optimisation skills.
The predicted salary is between 80000 - 100000 € per year.
Hello from RE Partners! 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 or US 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.
Key Responsibilities:- Design, develop, and optimize low-latency, high-throughput backend systems using Java.
- Build and maintain RESTful APIs and microservices that power secure payment workflows.
- 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 architectural changes, advocate for best practices, and provide mentorship to peers.
- 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.
- Proficient in Mongo, Spring and microservice-based architecture.
- Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus).
- Hands-on experience deploying applications on Red Hat OpenShift and/or Kubernetes.
- Strong cloud experience with AWS services such as ECS, EKS, Lambda, S3, etc.
- Strong communication skills and a bias toward action and opinionated design decisions.
- Familiarity with messaging systems (Kafka, RabbitMQ, etc.)
- Prior experience in Payments Processing, financial services, or banking systems.
- Exposure to container security and performance tuning on OpenShift.
- Knowledge of payment gateways, ISO 20022, or SWIFT formats.
- Hybrid work model in London, UK.
- Collaborative, fast-paced, and engineering-driven culture.
- Emphasis on engineering autonomy, architectural decision-making, and clean code.
Join Our Global Team: We invite you to apply for the position at RE Partners. 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 City of London employer: RE Partners
At RE Partners, we pride ourselves on being a fast-growing business and technology consultancy that values engineering excellence and innovation. Our hybrid work model in London fosters a collaborative and dynamic environment where you can thrive, with ample opportunities for professional growth and mentorship. With a strong focus on employee satisfaction reflected in our low attrition rate, we offer a unique chance to be part of a diverse, woman-owned global team dedicated to transforming the digital landscape.
StudySmarter Expert Advice🤫
We think this is how you could land Principal Java Engineer in City of London
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those who might know someone at RE Partners. A personal introduction can make all the difference in getting noticed.
✨Tip Number 2
Show off your skills! Prepare a portfolio or a GitHub repository showcasing your Java projects, especially those involving low-latency systems. This will give you an edge and demonstrate your hands-on experience.
✨Tip Number 3
Practice makes perfect! Brush up on your technical interview skills by doing mock interviews with friends or using online platforms. Focus on performance tuning and microservices, as these are key for the role.
✨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 team at RE Partners.
We think you need these skills to ace Principal Java Engineer in City of London
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, SpringBoot, and any relevant projects that showcase your skills in low-latency systems. We want to see how you fit into our engineering culture!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Share your passion for performance and your thoughts on opinionated design decisions. Let us know why you're excited about joining our team and how you can contribute to our mission.
Showcase Your Projects:If you've worked on any impressive projects, especially in payments processing or with microservices, make sure to mention them. We love seeing real-world applications of your skills, so don’t hold back!
Apply Through Our Website:We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows you’re keen on joining 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 experience with low-latency, high-throughput systems.
✨Showcase Your Architectural Insight
Since this role involves driving architectural changes, be prepared to share your thoughts on best practices in system design. Think about how you would approach building scalable, real-time services and be ready to discuss your previous experiences in similar environments.
✨Familiarise Yourself with the Tech Stack
Get comfortable with the tools and technologies mentioned in the job description, like Red Hat OpenShift, AWS, and MongoDB. If you have experience with messaging systems like Kafka or RabbitMQ, make sure to highlight that as well.
✨Emphasise Collaboration and Communication
This role thrives in a collaborative environment, so be ready to discuss how you've worked with cross-functional teams in the past. Share examples of how you've mentored peers or advocated for design decisions, showcasing your strong communication skills.
