Senior Software Engineer

Experian - Credit Services, Identity & Fraud are looking for a Senior Software Engineer to help us build and improve a mature, business-critical product. You'll work across the full stack in a collaborative, agile team, taking features from design through to delivery. Because our software handles sensitive customer data in a regulated environment, writing secure, high-quality code is central to how we work. This is a Hybrid, Nottingham based role (40% in the office) reporting to the Director of Engineer What you'll be doing - Build new features and enhancements across an established .NET product, working full-stack from data layer to UI. - Write clean, secure, maintainable and well-documented code, following our coding standards and secure-development practices. - Handle sensitive data responsibly, with security and data protection front of mind at every stage. - Improve performance and reliability through refactoring, database optimisation and sensible architectural changes. - Take part in the full delivery cycle — sprint planning, standups, retros — and work with the Product Manager to shape and deliver features. - Help triage, maintain and improve core parts of the existing application as our user base grows. Essential - Solid commercial experience with C#, .NET Framework and .NET Core development. - Experience with SQL and relational databases (SQL Server). - Full-stack experience building web pages with ASP.NET Razor. - A good understanding of web UI layout, including HTML and CSS. - A track record of writing secure code and handling sensitive data appropriately. - Sound grasp of object-oriented programming principles and design patterns. - Comfortable owning tasks through to completion and collaborating within an agile team. Desirable - Experience with Azure or other cloud platforms and cloud-native technologies. - Understanding of microservices and event-based architectures. - Familiarity with HTMX. - CI/CD experience, ideally with Git (GitHub) and GitHub Actions. - Experience with Atlassian tooling (Jira, Confluence).