Principal Backend Engineer - Java

Location: London (Hybrid) | Type: Permanent

Capco is growing our Engineering team – and we’re looking for experienced Principal Backend Engineers with strong Java skills and a passion for delivering innovative solutions in financial services. If you enjoy solving complex problems, working with cloud-native technologies, and collaborating in agile teams, we’d love to hear from you.

As a Principal Backend Engineer at Capco, you’ll contribute to high-impact, client-facing projects that shape the future of financial services. You’ll work alongside talented engineers, have access to industry-leading training, and get the opportunity to grow your skills across multiple platforms. You will also get the chance to work across different domains within FS & Energy.

• →Build and deliver scalable backend services using Java (11, 17+)
• →Design and implement APIs and microservices for enterprise systems
• →Work across cloud platforms, particularly AWS, using best practice deployment techniques
• →Contribute to architecture discussions and solution design
• →Develop robust test coverage including unit, integration, and performance testing
• →Collaborate in agile teams alongside clients, product managers, and other engineers

• Java Development - Expertise in Java 11, 17 and above.
• Spring Boot - Proficiency with the Spring Boot framework.
• Cloud Services - Deep understanding of deploying enterprise level software into any public cloud, preferably AWS.
• Architecture Patterns - Experience implementing microservices, event-driven, CQRS and cloud-native architectures.
• CI/CD - Strong understanding of CI/CD pipelines, particularly within the AWS ecosystem.
• Database Management - Proficiency in both SQL and NoSQL databases.
• Message Brokers - Experience with Kafka.
• Testing - Ability to write various types of tests including unit, component, integration, end-to-end, and performance tests.
• Java Streaming - Core understanding of Java streaming and AWS integration.
• Infrastructure as Code - Experience with CloudFormation or similar tools for infrastructure management.
• Large-Scale Systems Design - Experience with designing large-scale systems.
• Distributed Systems Troubleshooting - Ability to troubleshoot distributed systems.

• An appetite to contribute to the wider Capco business outside of project assignments. This can be achieved through various means including thought leadership activities, supporting RFP's and the coaching/mentoring of more junior engineering team members
• Proficiency with Gitlab for CI/CD processes.
• Behaviour Driven Design - Experience writing automation test cases in Cucumber using Behaviour Driven Design (BDD).
• AWS Certified Solutions Architect - Associate or Professional level certification required.
• Security Best Practices - Strong knowledge of security best practices, including the use of IAM Roles, KMS, etc.

We’re committed to a barrier-free, inclusive recruitment process. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We welcome applicants from all backgrounds. At Capco, we value the difference you make, and the differences that make you. Our #BeYourselfAtWork culture champions diversity, equity and inclusivity, and we bring a collaborative mindset to our partnerships with clients and colleagues. #BeYourselfAtWork is the cornerstone of our success and a value that our employees live and breathe every day.