Senior Software Development Engineer - SRE Capital One Site Reliability not stated ago

Nottingham Trent House (95002), United Kingdom, Nottingham, Nottinghamshire Senior Software Development Engineer - SRE

Job Title: Senior Software Development Engineer - SRE

Location: Nottingham - Hybrid

Working Pattern: 3 days in-office (Tuesday-Thursday) and 2 days remote.

We’re on a mission to be a force for good in lending. Throughout our almost 30-year history, we’ve consistently been recognised as a great place to work; in 2026, Capital One was officially ranked 9th in the UK’s Best Workplaces™ list. Hear from our team about what it’s like working at Capital One UK.

We are looking for a Senior Engineer to join our Site Reliability Engineering (SRE) team. This role is ideal for a skilled Java engineer with a passion for understanding how complex systems work, analysing performance, and applying engineering solutions to make them more efficient, stable, and scalable. You'll lead on planning and implementing key SRE initiatives, optimise and automate how our systems operate, and improve observability through better monitoring and logging.

You'll also work closely with your peers to drive consistency and high standards across SRE and the wider engineering community, so a real enthusiasm for influencing others and leading by example is essential.

• You will technically lead a group of engineers responsible for maintaining and improving our back-end services for our most critical customer and/or data applications within the cloud.
• Contribute to the major optimisation and improvement themes within the team. Identifying opportunities to reduce operational overheads through observability and service automation.
• Drive engineering best practice (e.g., Operational Excellence, Security, Quality, Resilience etc.) and set standards across the team and wider SRE community.
• Innovate within your team and contribute within your technical domain.
• Deliver key pieces of intent from inception through to design and hands-on delivery, in collaboration with your Site Reliability Engineering Manager.

• Production-grade experience of developing and managing APIs using Java & Springboot. Excellent understanding of SOLID principles, SOA, HTTP and REST.
• Production experience running microservices on container orchestration architectures.
• Good understanding of API authentication and authorisation mechanisms like OAuth.
• Knowledge using monitoring & logging tools to troubleshoot problems in a distributed network of systems.
• Excellent understanding of infrastructure as code and CI/CD pipeline management via Jenkins.
• Strong experience in back-end architectural and design patterns.

This is a permanent position based in our Nottingham office.

We embrace a hybrid approach to work. You'll spend three days a week in the office (Tuesday-Thursday), with Monday and Friday being dedicated work-from-home days.

Our offices are designed to inspire and support you. At our Nottingham head office, you'll find an on-site gym, restaurant and dedicated Learning Loft. Our London office boasts a rooftop running track and coffee bar.

We invest in the growth of our people alongside our business. You will have extensive opportunities to learn and develop your career, including access to up to £5,000 in funding for external qualifications.

In addition to career development, our comprehensive benefits package is designed to grow with you, ensuring your wellbeing is prioritised at every stage of your career:

• Wealth & Future:
  Competitive pension and performance-based bonus schemes
• Holidays:
  Start with 25 days of annual leave, increasing with tenure. Need more? You have the option to buy 5 additional days.
• Health:
  Access premium care through our…