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Java Backend Engineer – (senior & principal)
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Java Backend Engineer – (senior & principal)
Backend Engineer – Java (Senior & Principal roles available)
📍 London (Hybrid) ❌ Unfortunately, no visa sponsorship offered
About the Role
Power the platforms behind modern finance. Our client, a leading consultancy delivering cutting-edge technology for major financial institutions, is hiring Senior and Principal Backend Engineers to build robust, cloud-native Java solutions for a major digital banking platform serving 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.
Key Responsibilities
- 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
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Requirements
Mandatory Skills & Experience
- Expert-level Java (11, 17, 21+) and Spring Boot
- Strong AWS experience, including hands-on deployment of enterprise-grade systems
- Experience with microservices, event-driven architecture, and cloud-native design
- Proficiency with Kafka, Java Streaming, and cross-functionality in SQL/NoSQL
- Familiarity with Infrastructure as Code (e.g., CloudFormation) and distributed systems troubleshooting
- Strong preference for fintech or product-company backgrounds
- Adaptable and proactive approach to high-visibility, collaborative projects—no roles for those seeking a low-key position
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Nice to Have (Not Mandatory)
- GitLab CI/CD experience and familiarity with Cucumber/BDD (Behaviour-Driven Development)
- AWS Solutions Architect certification
- Knowledge of CQRS (Command Query Responsibility Segregation) and performance testing
- Genuine interest in emerging cloud technology and AI-assisted development
Diversity & Inclusivity Notice
"Research indicates that men will apply to a role when they only meet 50-60% of descriptions, however, women and underrepresented minorities may require an up to 99% match to feel qualified. Our doors are open to all talented individuals—please apply regardless of whether every ‘box’ has been ticked. We encourage underrepresented talent to apply to all roles and support accessibility needs."
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