Principal Backend Developer (Java)

Salary: £65,000 - 105,000 per year

Requirements:

• 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 such as OAuth, IAM, TLS, and 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
• Bonus points for hands-on experience with GitLab CI/CD, Cucumber, and Behaviour Driven Design
• Bonus points for AWS Certified Solutions Architect (Associate or Professional)
• Bonus points for history of delivering large-scale customer-facing applications
• Bonus points for passion for experimenting with new tools and approaches within backend engineering

Responsibilities:

• 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

Technologies:

• AWS
• Architect
• Backend
• CI/CD
• Cloud
• CQRS
• Cucumber
• GitLab
• IAM
• Java
• Kafka
• NoSQL
• OAuth
• SQL
• Security
• Spring
• Spring Boot
• microservices
• Support

More:

We are a Technology & Engineering team seeking a Principal Backend Engineer (Java) for a permanent role based in our Edinburgh location, with potential work across our Glasgow or Edinburgh office depending on client expectations. We deliver high-impact technology solutions for Tier 1 financial institutions and work in a collaborative, flat, and entrepreneurial consulting culture. We offer continuous learning, training, and industry certifications, along with a people-first benefits package that includes discretionary bonus, pension, health insurance, life insurance, critical illness cover, family-friendly leave, backup care, holiday flexibility, annual training, business coaching from day one, healthcare access, and extra perks such as Gympass, travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance. We are committed to an accessible recruitment process and value individuality, collaboration, and our #BeYourselfAtWork culture.

last updated 34 week of 2026