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    Experian

    Data and Technology

    Senior Software Engineer - .NET

    Nottingham, United KingdomHybridFull-timePosted 6d ago
    All Experian jobs

    Job description

    We 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

    Job details are sourced from the employer's original posting.

    Open job posting
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    About the company

    Experian

    Experian is a global data and technology company, powering opportunities for people and businesses around the world. We help to redefine lending practices, uncover and prevent fraud, simplify healthcare, deliver digital marketing solutions, and gain deeper insights into the automotive market, all using our unique combination of data, analytics and software. We also assist millions of people to accomplish their financial goals and help them to save time and money. We invest in people and new advanced technologies to unlock the power of data and to innovate. A FTSE 100 Index company listed on the London Stock Exchange (EXPN), we have a team of 23,300 people across 32 countries. Our corporate headquarters are in Dublin, Ireland.

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