Salary: £61,000 - 101,000 per year Requirements: We are looking for a Mid-Level .NET Developer with experience across a broad Microsoft technology stack. We require strong commercial experience with .NET Core / Framework and C#. We require experience with SQL / T-SQL, including writing and optimising queries, stored procedures, and functions. We require experience with JavaScript, HTML, and CSS. We require experience with Entity Framework and Git. We are particularly interested in candidates with experience across both legacy MVC applications and modern .NET Core environments. Experience with ASP.NET MVC and ASP.NET Core is highly desirable. Experience with Azure DevOps, MongoDB, jQuery, AJAX, PowerShell, SSRS, IIS, Windows Services, Bootstrap, and Postman is desirable. We value candidates who are comfortable working in a collaborative environment and solving technical problems. We are looking for someone with hands-on application development and support experience. 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, senior developers, technical managers, and other stakeholders. We assist with troubleshooting and support of live systems. We contribute to future product and platform improvements. We take part in the full software development lifecycle, including development, maintenance, enhancement, and support of business-critical applications. Technologies: 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 2 days in the office each week. We offer the opportunity to work on enterprise-scale systems used by clients across multiple international markets, within a collaborative team environment that includes senior developers, technical managers, and business stakeholders. This role offers strong technical exposure, long-term stable career progression, and a broad mix of backend development, API development, database work, application support, and technical improvement work. Our benefits include a salary up to £52k, 25 days holiday plus bank holidays with the option to buy 5 more, pension matching up to 9%, subsidised private medical cover, life insurance at 4x salary, cycle to work scheme, 50% gym membership contribution, season ticket loans, regular social events, enhanced maternity/paternity leave, and the possibility of increased remote working in the future. last updated 24 week of 2026