Job description
Principal Backend Engineer – Java
Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent
Architect the next generation of financial platforms. Lead with Java expertise. Deliver impact at scale.
The Role
We’re looking for a Principal Backend Engineer (Java) to join our Technology & Engineering team. This leadership-level role calls for deep technical acumen, a security-first mindset, and strong coaching capabilities. You’ll architect cloud-native backend systems, shape our engineering standards, and mentor teams to deliver high-performance platforms for global financial clients.
What You’ll Do
Lead the design and development of secure, scalable backend systems using Java 11+ and Spring Boot
Architect distributed microservices and event-driven systems deployed to public cloud (preferably AWS)
Guide technical decision-making across teams and align solutions to enterprise strategies
Champion engineering excellence, continuous improvement, and a test-first culture
Coach developers, shape delivery processes, and influence broader engineering practices across Capco
What We’re Looking For
Expertise in Java 11⁄17+, Spring Boot, and AWS-based enterprise cloud solutions
Proven track record architecting secure, scalable services using microservices and CQRS patterns
Strong experience in CI/CD pipelines, SQL/NoSQL, Kafka, CloudFormation, and streaming frameworks
Advanced understanding of system security protocols (e.g., OAuth, IAM, TLS, encryption)
Leadership capability to manage and mentor teams while driving technology strategy
Bonus Points For
Contributions to thought leadership, mentoring, or RFPs within consultancy or tech environments
Hands-on experience with GitLab CI/CD, Cucumber, and Behaviour Driven Design
AWS Certified Solutions Architect (Associate or Professional)
History of delivering large-scale customer-facing applications
Passion for experimenting with new tools and approaches within backend engineering
Why Join Capco
Deliver high-impact technology solutions for Tier 1 financial institutions
Work in a collaborative, flat, and entrepreneurial consulting culture
Access continuous learning, training, and industry certifications
Be part of a team shaping the future of digital financial services
Help shape the future of digital transformation across FS & Energy.
Benefits
We offer a competitive, people-first benefits package designed to support every aspect of your life:
Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.
Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.
Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.
Family Care: 8 complimentary backup care sessions for emergency childcare or elder care.
Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs.
Continuous Learning: Your growth, your way - minimum 40 hours of training annually. Take your pick; workshops, certifications, e-learning. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development.
Healthcare Access: Convenient online GP services.
Extra Perks: Gympass(Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.
Inclusion at Capco
We’re committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know – we’ll be happy to help. We value each person’s unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration – a mindset that shapes how we work with clients and each other every day.
