Senior Java Engineer in London

Senior Java Engineer in London

London Full-Time No working from home possible
RE Partners Consulting

At a Glance

  • Tasks: Design and optimise high-performance Java systems for secure payment processing.
  • Company: Join a diverse, woman-owned global tech consulting firm with a collaborative culture.
  • Benefits: Enjoy a hybrid work model, competitive salary, and a supportive environment.
  • Other info: Be part of a team that values autonomy, clean code, and innovative solutions.
  • Why this job: Make a real impact in the fast-paced payments industry using cutting-edge technologies.
  • Qualifications: 10+ years in Java development with strong skills in Spring and microservices.

Senior Java Engineer

We are seeking an experienced and opinionated Senior Java Engineer to join our high-performing engineering team, working on low latency, high-throughput systems in the payments processing domain. If you’re passionate about performance, have strong Core Java and Spring Boot 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.

Required Skills & Experience:

  • 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.

Nice to Have:

  • 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.

Location & Work Environment:

  • Hybrid work model.
  • 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.

Senior Java Engineer in London employer: RE Partners Consulting

At RE Partners, we are committed to fostering a dynamic and inclusive work environment where innovation thrives. As a Frontend Engineer (Angular), you will have the opportunity to collaborate with talented professionals on cutting-edge projects while enjoying a supportive culture that prioritises employee growth and well-being. With our impressive 7% attrition rate, we take pride in our ability to keep talent happy and engaged, making us an excellent employer for those seeking meaningful and rewarding careers in technology consulting.

RE Partners Consulting

Contact Details:

RE Partners Consulting Recruitment Team

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

Core Java
Spring Boot
Low-Latency Systems
High-Throughput Applications
RESTful APIs
Microservices Architecture
Red Hat OpenShift