> Markdown version of [/jobs/ext/4612169-application-support-developer](https://www.wearedevelopers.com/jobs/ext/4612169-application-support-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Application Support Developer - **Company:** ISR RECRUITMENT LIMITED - **Location:** Sale, UK - **Experience:** Expert - **Salary:** £43,000.0 - £47,000.0 - **Contract:** Temporary contract - **Skills:** ASP.NET, .NET Framework, Application Programming Interfaces (APIs), Application Lifecycle Management, Business Software, C Sharp (Programming Language), Databases, Data Systems, Microsoft Software, Microsoft SQL Server, Power BI, Standard Sql, Secure Coding, Microsoft SharePoint, Software Engineering, SQL Server Integration Services, SQL Server Analysis Services, Systems Integration, Scripting, Sap Business Objects, Tools for Reporting - **Published:** November 7, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5955670123 ## About the Role * Experienced in application development, application support, and maintaining business-critical systems. * Strong practical experience with a combination of C#, .NET, SQL Server, database scripting, SSIS, SSAS, and APIs or integrations. * Experience with Microsoft technologies, including SharePoint, Power Platform, and Power BI; Business Objects and MDX are beneficial. * Strong understanding of IT service management; ITIL Foundation certification or willingness to obtain it within 12 months. * Experience managing technical releases, resolving complex incidents, and working in secure, controlled development environments. * Ability to lead technical activities, manage competing priorities, and communicate effectively with technical and non-technical stakeholders., * Support * ITIL * Power BI * SQL * SharePoint * SSAS * SSIS * ASP.NET ## Description * Design, develop, maintain, and support complex business applications, integrations, and data solutions. * Lead technical workstreams, releases, and significant system enhancements. * Diagnose and resolve complex incidents, identify root causes, and manage service risks. * Develop and maintain APIs, database processes, automation, and reporting solutions. * Ensure secure development, application lifecycle management, monitoring, backup, and recovery practices. * Work with business stakeholders to understand requirements, challenge technical approaches where appropriate, and recommend effective solutions. * Manage technical dependencies, delivery risks, and supplier relationships, while supporting and mentoring colleagues., We are recruiting a Senior Application Support Developer for a public-sector organisation in Northwich, Cheshire. This is a 12-month fixed-term contract with a salary of £43,000 to £47,000 per year. The role combines hands-on development with application support and technical delivery, with an opportunity to contribute to business-critical services that have a significant impact on the community.