Senior Software Development Engineer - Data

Job Title: Senior Software Development Engineer - Data

Location: Nottingham - Hybrid

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

Our Mission

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.

About the Role

This role will play a crucial part in our goal to build and modernise the cloud-based data ecosystem to unlock the power of data, increase financial inclusion and deliver transformative experiences to our customers.

The Data team own the services that form our Data Ecosystem, creating and maintaining API’s, backed by Java and Python microservices to manage and unleash the value of data across the full data lifecycle. From capturing data in real time, making sure it is accurate & easy to use, to enabling analysis for deep insight backed by the power of Cloud based data-stores & scalable machine learning, the Capital One Data team is leading the way.

We are seeking a Software Development Engineer to join us on our mission, where you’ll use a number of different languages (such as Java, Python, React/Typescript), to build both front and backend solutions, solving complex problems as we continue to build our next generation data ecosystem, to help our customers.

What you’ll do

• You’ll work as part of a self-organised Software Engineering team to design and develop software features that are impactful for the lives of credit card consumers across all walks of life
• Your focus will be on a major portion of existing or new team software (e.g. significant component, set of features, mid-size application or service).
• You’ll work to achieve the goals and vision shared by Product Management and your Outcome Team Leadership.
• You will drive engineering best practices (e.g. Operational Excellence, Security, Quality, etc.) and set standards across your team and wider engineering teams.
• You will innovate within your team, initiative area and contribute within your technical domain.

The skills and experience you need

• Experience performing as a Technical lead within a team, working with stakeholders to deliver great outcomes at pace, whilst influencing across wider Engineering teams, to encourage best practice and coaching of more junior engineers.
• Strong programming skills with a good working knowledge of modern OO languages/technologies such as Java, Python, .Net
• Demonstrable knowledge of creating architectural designs that meet the business need.
• Experienced in Cloud/AWS technologies
• You have experience of leading and delivering complex projects with precision

Where and how you'll work

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.

What’s in it for you

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 private medical insurance.
• Family Support: We champion your milestones with enhanced parental leave.

A full list of our benefits is available here.

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.

We value diversity, inclusion and belonging at our core. We empower our associates to do great work by creating an inclusive culture—one that values diverse perspectives, fosters collaboration and encourages innovative ideas—and a place where associates of all backgrounds can thrive by bringing their most authentic selves to work. We call this our Culture of Belonging, and it rests at the heart of our business.

Our associate-led Business Resource Groups were created to help support our diverse population and include over 10 groups across our offices. Because each Business Resource Group is as unique as the population it serves, they offer a range of activities, networking opportunities, special events and learning programmes to associates.

If you require a reasonable adjustment, please contact ukrecruitment@capitalone.com 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 Careers@capitalone.com

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).