Salary: £45,000 - 52,000 per year Requirements: We are looking for a Mid-Level .NET Developer with experience across both legacy MVC applications and modern .NET Core environments. We require strong proficiency in C# and .NET technologies, including .NET Core and .NET Framework. We require experience with ASP.NET MVC and ASP.NET Core. We require solid SQL and T-SQL skills, including writing and optimising queries, stored procedures, and functions. We require experience with JavaScript, HTML, CSS, and Entity Framework. We require experience using Git for source control. We value candidates with exposure to Azure DevOps, MongoDB, jQuery, AJAX, PowerShell, SSRS, IIS, Windows Services, Bootstrap, and Postman. We are looking for someone who is comfortable working across the full software development lifecycle. We are seeking a developer with a collaborative mindset and strong problem-solving ability. A relevant technical background and experience supporting enterprise-scale systems would be advantageous. Responsibilities: We develop and maintain applications using C# and .NET technologies. We work across ASP.NET MVC and ASP.NET Core applications. We build and support APIs and backend services. We write and optimise SQL queries, stored procedures, and functions. We participate in testing and quality assurance processes. We produce technical documentation. We collaborate with Business Analysts, technical managers, and other stakeholders. We assist with troubleshooting and support of live systems. We contribute to future product and platform improvements. We work closely with senior developers and the wider business to deliver robust software solutions across internal and client-facing platforms. Technologies: .NET Framework AJAX API ASP.NET Azure Backend Bootstrap C# CSS DevOps Git Support JavaScript MongoDB MVC Postman PowerShell SQL Windows jQuery Cloud More: We are an established international software and risk management business based near Crawley, working in a hybrid model with two days in the office each week. We offer an excellent opportunity to work on enterprise-scale systems used by clients across multiple international markets, with exposure to a broad Microsoft technology stack and a hands-on mix of backend development, API work, database tasks, application support, and technical improvement. We provide a supportive and collaborative team environment, long-term stable career progression, and a strong benefits package including up to £52k salary, 25 days holiday plus bank holidays, pension matching up to 9%, subsidised private medical cover, life insurance, cycle to work scheme, gym membership support, season ticket loans, regular social events, enhanced maternity and paternity leave, and the option to buy additional holiday. last updated 21 week of 2026