Experian is a global data and technology company, powering opportunities for people and businesses around the world. We operate across a range of markets, from financial services to healthcare, automotive, agribusiness, insurance, and many more. Experian invests in people and new advanced technologies to unlock the power of data. We have an amazing team of 25,200 people in 32 countries.
Internal Grade E/EB9
Job DescriptionWe are looking for an experienced Senior .NET Developer (C#) to join the Acquisitions & Originations engineering team within Experian's Credit & Verification Services business.
The Domain
The Acquisitions & Originations team develops and provides level 3 support for the Delphi Select and Evaluate platforms, which are used across the Acquisitions and Originations business. These are complex, configuration-driven, multi-client systems: each client (bank, lender or other financial institution) runs its own decisioning strategies, rules and data configurations on a shared codebase.
Clients depend on these systems to make real-time lending and origination decisions, so reliability, data integrity and controlled release processes are central to the role.
This is a hybrid, Nottingham based role (40% in the office) reporting to the Lead Developer.
Key Responsibilities
- Own features end-to-end across the full software development lifecycle: requirements analysis, technical design, development, unit and integration testing, code review, deployment and post-release support.
- Design, develop and maintain scalable, maintainable C#/.NET services and components within a complex, multi-client system, ensuring changes are safe across all client configurations.
- Translate high-level and client-specific requirements into robust technical designs, in collaboration with the Technical Lead, Architects, Business Analysts and Product Owners.
- Maintain and improve automated test coverage (unit, integration and regression) to support safe, frequent releases into a live multi-client platform.
- Contribute to and help evolve CI/CD pipelines (Git, Jenkins)
- Identify and help remediate technical debt, and contribute to ongoing modernisation of the platform, including its migration towards cloud-native (AWS) architecture.
- Mentor Intermediate and Junior developers, sharing technical knowledge and supporting their growth, including in the effective use of AI-assisted development tools.
Required Skills / Knowledge
- Strong expertise in .NET Core / .NET Framework and C#, including object-oriented design and common design patterns.
- Proven experience across the full software development lifecycle, ideally supporting a live, business-critical production system.
- Solid experience with SQL Server / T-SQL, including writing and optimising queries and stored procedures against production data.
- Experience designing and consuming RESTful APIs, and working with service-oriented or microservice architectures.
- Practical experience with unit and integration testing frameworks (e.g. xUnit, NUnit or MSTest).
- Experience with version control and CI/CD tooling (e.g. Git, Jenkins, or equivalent).
- Direct experience working in a Scrum or other Agile team, including sprint planning, stand-ups and retrospectives.
- Hands-on, everyday experience using AI-assisted development tools (e.g. GitHub Copilot, Cursor, Claude, ChatGPT) for tasks such as code generation, refactoring, test writing, debugging and documentation
Useful Skills (beneficial, not mandatory)
- Exposure to AWS services (e.g. DynamoDB, S3, EC2 ) or a strong interest in developing cloud skills as the platform migrates to AWS.
- Experience with Infrastructure as Code (e.g. Terraform, CloudFormation).
- Knowledge of containerisation (Docker, Kubernetes).
- Experience in financial services, lending, credit decisioning or a similarly regulated domain.
- Exposure to front-end technologies such as React or modern JavaScript/TypeScript.
- Experience working with configuration-driven or rules-engine-based systems.
Benefits include:-
- Great compensation package and discretionary bonus plan
- Core benefits include pension, bupa healthcare, sharesave scheme and more!
- 25 days annual leave with 8 bank holidays and 3 volunteering days. You can also purchase additional annual leave.
Recruitment Fraud Awareness - Experian's recruitment process is conducted only through authorised channels. Recruitment communications will only be sent from an @experian.com email address. Experian will never ask candidates to make any payment as part of an application, interview, assessment, onboarding, or recruitment process. To apply for roles or verify opportunities, please visit experian.com/careers.
Our uniqueness is that we celebrate yours. Experian's people first, inclusive and purpose driven culture is multi award-winning; World's Best Workplaces™ 2025 (Fortune Global Top 25), Great Place To Work™ in 26 countries to name a few. Check out Experian Life on social or explore our Careers Site to understand why. Experian is also proud to be an Equal Opportunity and Affirmative Action employer. If you have a disability or special need that requires accommodation, please let us know at the earliest opportunity.
Experian Careers - Creating a better tomorrow together
Find out what its like to work for Experian by clicking here
Skills Required
- Strong expertise in .NET Core or .NET Framework and C#
- Object-oriented design and common design patterns
- Full software development lifecycle experience, ideally supporting a live business-critical production system
- SQL Server and T-SQL, including query and stored procedure optimization
- Experience designing and consuming RESTful APIs
- Experience with service-oriented or microservice architectures
- Experience with unit and integration testing frameworks such as xUnit, NUnit, or MSTest
- Experience with version control and CI/CD tooling such as Git or Jenkins
- Experience working in a Scrum or other Agile team
- Hands-on everyday experience using AI-assisted development tools such as GitHub Copilot, Cursor, Claude, or ChatGPT
- Exposure to AWS services such as DynamoDB, S3, or EC2
- Experience with Infrastructure as Code such as Terraform or CloudFormation
- Knowledge of Docker or Kubernetes
- Experience in financial services, lending, credit decisioning, or a regulated domain
- Exposure to React or modern JavaScript/TypeScript
- Experience with configuration-driven or rules-engine-based systems
Experian Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Experian and has not been reviewed or approved by Experian.
-
Healthcare Strength — Medical and dental coverage is described as strong, with expanded mental health resources and telemedicine options. Coverage includes inclusive services such as gender transition and fertility support.
-
Leave & Time Off Breadth — Time-off offerings are generous, including substantial PTO/vacation, paid holidays, and paid volunteer days with options to purchase additional leave. Parental leave is available for birth and non-birth parents alongside flexible working arrangements that support work-life balance.
-
Retirement Support — Retirement programs include a 401(k) with company matching and contributory pension schemes in some regions. These elements complement base pay and bonuses to form a competitive total rewards package.
Experian Insights
What We Do
Experian unlocks the power of data to create opportunities for consumers, businesses and society. During life’s big moments – from buying a home or car, to sending a child to college, to growing a business exponentially by connecting it with new customers – we empower consumers and our clients to manage data with confidence so they can maximize every opportunity. We gather, analyse and process data in ways others can’t. We help individuals take financial control and access financial services, businesses make smarter decision and thrive, lenders lend more responsibly, and organizations prevent identity fraud and crime. For more than 125 years, we’ve helped consumers and clients prosper, and economies and communities flourish – and we’re not done. Our 20,600 people in 43 countries believe the possibilities for you, and our world, are growing. We’re investing in new technologies, talented people and innovation so we can help create a better tomorrow. About Experian: Bringing data to life requires creativity, passion, flexibility and expertise. We want you to share in our success. That's why we offer rewards that recognise great performance. Working in a culture of collaboration, achievement and respect we will give you the support and encouragement you need to develop your skills and talents and progress your career. Everyday our people bring enthusiasm, innovation and inspiration to work and if this sounds like you connect with us at Experian.
