Backend Engineer – Java (Senior & Principal roles available)
📍London (Hybrid)
❌Unfortunately, no visa sponsorship offered

This is Java engineering with real stakes. Our client, a leading technology consultancy embedded within major financial institutions, is growing its backend team. Senior and Principal Engineers wanted to build cloud-native platforms behind a digital banking product used by millions of customers.


Whether you're looking to deepen your technical craft or step into architectural leadership, this is a chance to work on high-impact, business-critical platforms at scale.

What you'll be doing

• Designing and building microservices-based applications using Java 11/17+ and Spring Boot

• Delivering enterprise-ready cloud solutions on AWS

• Building and maintaining CI/CD pipelines with secure, scalable deployments

• Writing strong test coverage and championing quality-driven development

• Collaborating in agile teams, contributing to architecture and design decisions

• (Principal level) Leading technical direction, mentoring engineers, and owning solution design across squads

What you'll bring

• Expert-level Java (11, 17, 21+) and Spring Boot

• Strong AWS experience - hands-on deployment of enterprise-grade systems

• Experience with microservices, event-driven architecture, and cloud-native design

• Kafka, Java Streaming, and confidence across SQL/NoSQL

• Familiarity with Infrastructure as Code (CloudFormation or similar) and distributed systems troubleshooting

• Fintech or product-company background strongly preferred

• Strong stakeholder skills and a genuine go-getter mindset - this is a high-visibility platform, not a place to blend into the background

Nice to have

• GitLab CI/CD and Cucumber/BDD experience

• AWS Solutions Architect certification

• CQRS knowledge and performance testing experience

• A genuine interest in emerging cloud tech and AI-assisted development

A competitive, people-first package: discretionary bonus, private health and life insurance, 5 weeks' annual leave (plus buy/sell), 40+ hours of training a year, a dedicated business coach from day one, and a genuinely flexible, non-hierarchical culture.

Research indicates that men will apply to a role when they only meet 50-60% of the descriptions, however, when looking at women and other minority groups, they can look for up to a 99% match in order to apply to a role. If you feel you are a fit for our role, please still apply, don’t worry if you don’t tick every single box. We’d still love to hear from you. We encourage underrepresented talent to apply to all our roles & support accessibility needs