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# Senior .NET Developer

- **Company:** Avanti Recruitment
- **Location:** Reading, UK
- **Experience:** Expert
- **Salary:** £65,000.0 - £80,000.0
- **Contract:** Permanent contract
- **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Software Applications, C Sharp (Programming Language), Cloud Computing, Continuous Integration, Microsoft Software, Microsoft SQL Server, Standard Sql, Strategies of Testing, Windows Forms, Cloud Platform System, .NET Core, ReactJS, Front End Software Development, Code Restructuring, Legacy Systems
- **Published:** August 15, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5843030142

## About the Role

* We are looking for strong experience with C# development.
 * We require experience with .NET Framework and .NET Core.
 * We need hands-on experience with WinForms or other desktop application development.
 * We require experience working with MS SQL Server.
 * We are looking for experience with refactoring and modernisation projects.
 * We require experience working in agile environments.
 * We need familiarity with CI/CD practices.
 * We require experience with testing methodologies such as TDD.
 * We are looking for cloud experience.
 * We would value experience migrating legacy systems.
 * We would value exposure to React or JavaScript.
 * We are looking for someone comfortable working onsite regularly during the early stages of a project in a hybrid setup.

## Description

* We will have you assess, improve, and progressively enhance an established C# codebase built on older Microsoft technologies.
 * We will have you help evolve a large-scale legacy platform from an on-premise desktop environment to a modern .NET Core, cloud-based architecture.
 * We will have you work closely with our CTO and wider engineering team on technical direction.
 * We will have you contribute to planning, collaboration, and technical workshops.
 * We will have you support the transition from legacy desktop applications toward modern web and cloud platforms.
 * We will have you help manage and influence a major systems transformation programme.
 * We will have you work across multiple projects in the transformation pipeline.
 * We will have you bring greenfield thinking within an established business.
 * We will have you participate in leadership and architecture decisions.
 * We will have you contribute as part of a small, collaborative engineering team.

Technologies:

 * .NET Framework
 * C#
 * CI/CD
 * Cloud
 * CTO
 * Support
 * JavaScript
 * React
 * SQL
 * TDD
 * Web
 * ASP.NET
 * Frontend


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