Senior Software Development Engineer - Site Reliability Engineer

Nottingham Trent House (95002), United Kingdom, Nottingham, Nottinghamshire

Senior Software Development Engineer – Site Reliability

About the Role

We\’re 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.

What you’ll do

• 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.
• Through your team and hands-on engineering, help to shape and deliver the goals and vision set out by your Site Reliability Engineering Manager (SREM).
• 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 SREM.
• Estimate, scope and plan your work within an agile environment.

What we’re looking for

• Production-grade experience of developing and managing APIs using Java & Springboot. Excellent understanding of SOLID principles, SOA, HTTP and REST.
• Good knowledge of Maven or Gradle.
• Production experience running microservices on container orchestration architectures.
• Passionate about API testing utilising tools similar to Wiremock, Pact, Postman and Cucumber.
• 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.
• Development experience within a cloud environment.
• Strong experience in back-end architectural and design patterns.
• Able to effectively communicate and partner across engineering to maximise inner-sourcing opportunities and reduce waste.
• Extensive knowledge to successfully identify, troubleshoot and pre-empt operational issues.
• Proactive approach to problem determination, identifying areas for improvement and system bottlenecks.
• Strong communication skills with proven ability to challenge and motivate technical teams.

What you’ll get to learn (any previous experience would be advantageous)

• Broadening your knowledge of the cloud (specifically AWS).
• Scripting languages (e.g. Python, BASH).
• Site Reliability Engineering.
• Solving real world problems and being comfortable working in a complex regulated environment.

Where and how you\’ll work

This is a permanent position based in our Nottingham office.

We have a hybrid working model which gives you flexibility to work from our offices and from home.

We’re big on collaboration and connection, so you’ll be based in our Nottingham office 3 days a week on Tuesdays, Wednesdays and Thursdays.

What you should know about how we recruit

We pride ourselves on hiring the best people, not the same people. Building diverse and inclusive teams is the right thing to do and the smart thing to do. We want to work with top talent: whoever you are, whatever you look like, wherever you come from. We know it’s about what you do, not just what you say. That’s why we make our recruitment process fair and accessible. And we offer benefits that attract people at all ages and stages.

We also partner with organisations including the Women in Finance and Race At Work Charters, Stonewall and upReach to find people from every walk of life and help them thrive with us. We have a whole host of internal networks and support groups you could be involved in, to name a few:

• REACH – Race Equality and Culture Heritage group focuses on representation, retention and engagement for associates from minority ethnic groups and allies
• OutFront – to provide LGBTQ+ support for all associates
• Mind Your Mind – signposting support and promoting positive mental wellbeing for all
• Women in Tech – promoting an inclusive environment in tech
• EmpowHER – network of female associates and allies focusing on developing future leaders, particularly for female talent in our industry
• Enabled – focused on supporting associates with disabilities and neurodiversity

Capital One is committed to diversity in the workplace.

If you require a reasonable adjustment, please contact All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment.

For technical support or questions about Capital One\’s recruiting process, please send an email to

Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site.

Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).

Who We Are
At Capital One, we\’re building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding.
Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.
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