Senior Software Engineer - .NET

About Experian

Role and domain

Responsibilities

• Own features through requirements analysis, technical design, development, unit and integration testing, code review, deployment, and post-release support.
• Build and maintain scalable C#/.NET services and components, ensuring changes are safe across client configurations.
• Translate high-level and client-specific requirements into technical designs with technical and business colleagues.
• Improve automated unit, integration, and regression coverage and contribute to CI/CD pipelines using Git and Jenkins.
• Address technical debt and help modernize the platform toward cloud-native AWS architecture.
• Mentor intermediate and junior developers, including supporting effective use of AI-assisted development tools.
• Develop and provide level 3 support for the Delphi Select and Evaluate platforms.

Required skills and experience

• Strong .NET Core or .NET Framework and C# expertise, including object-oriented design and common design patterns.
• Experience across the software development lifecycle, ideally supporting a live, business-critical production system.
• SQL Server / T-SQL experience writing and optimizing 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 such as xUnit, NUnit, or MSTest.
• Version control and CI/CD tooling experience, such as Git, Jenkins, or equivalent.
• Direct experience in Scrum or another Agile team, including sprint planning, stand-ups, and retrospectives.
• Everyday hands-on use of AI-assisted development tools for code generation, refactoring, testing, debugging, or documentation.

Beneficial skills

• AWS exposure or a strong interest in developing cloud skills; Infrastructure as Code; Docker or Kubernetes; financial services, lending, or credit decisioning; React or modern JavaScript/TypeScript; configuration-driven or rules-engine systems.

Benefits

• Benefits include a compensation package, discretionary bonus plan, pension, Bupa healthcare, sharesave scheme, 25 days' annual leave, eight bank holidays, three volunteering days, and the option to purchase additional leave.