C# Developer - Hybrid in Kingston upon Thames - Inside IR35 - 12 months
We are seeking an experienced SC Cleared C# Developer to join a leading international organisation on a long-term programme of work. This role, based in Kingston upon Thames, offers an opportunity to contribute to the design, development, and optimisation of high-performance enterprise applications.
As part of a collaborative Agile engineering team, you will be responsible for delivering robust, scalable, and secure software solutions throughout the full software development lifecycle - from requirements analysis and design through to development, testing, deployment, and maintenance. You'll be expected to bring deep technical expertise in C#, .NET, and modern development practices, along with strong communication skills and a structured, delivery-focused mindset.
Key Responsibilities:
* Develop, and maintain applications using C#, .NET 6/7, and ASP.NET Core.
* Contribute to all phases of the software development lifecycle, including planning, design, coding, testing, deployment, and ongoing support.
* Collaborate with product owners, business analysts, and QA teams to translate business requirements into technical solutions.
* Implement and manage work items, sprints, and issue tracking using Jira.
* Develop and consume RESTful APIs and integrate with external systems and databases.
* Write clean, efficient, and maintainable code that adheres to established coding standards and design principles (SOLID, OOP).
What You Will Ideally Bring:
* 5+ years of professional experience in software development using C# and .NET (Core or Framework).
* Strong understanding of the software development lifecycle (SDLC) and Agile methodologies.
* Proficiency with Jira for sprint planning, task tracking, and project management.
* Experience with ASP.NET Core, Entity Framework, and SQL Server.
* Familiarity with Azure DevOps, CI/CD pipelines, and Git version control.
* Experience building and maintaining REST APIs and web services.
* Strong problem-solving, debugging, and analytical skills.
* Excellent communication and teamwork abilities within cross-functional Agile teams.
* Exposure to JavaScript frameworks (React, Angular, or Vue) is beneficial.
* SC Cleared
Contract Details:
* Duration: 12 months (with potential extension)
* Day Rate: Up to £500 per day (Inside IR35)
* Location: Hybrid - Kingston upon Thames
* Start Date: ASAP