Application Support Developer

ISR RECRUITMENT LIMITED; Northwich; On-site; GBP 43,000 - 47,000; Full time

Job summary

ISR RECRUITMENT LIMITED is seeking a Senior Application Support Developer in Northwich to own business-critical applications, integrations and data solutions. The role blends hands-on development with support, ensuring secure and reliable systems while guiding technical delivery and releases.

You will work with stakeholders and suppliers to resolve complex incidents, design APIs, optimize data processes and mentor colleagues within a controlled development environment.

Qualifications

• Experience in application development and maintaining business-critical systems.
• Strong experience with C#, .NET, SQL Server and APIs/integration.
• Knowledge of SharePoint, Power Platform and Power BI desirable.

Responsibilities

• 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, lifecycle management, monitoring, backup and recovery practices.
• Collaborate with stakeholders to understand requirements and propose effective solutions.
• Mentor colleagues and manage technical dependencies and supplier relationships.

Skills

C#/.NET

SQL Server

APIs & Integration

SSIS

SSAS

Power BI

SharePoint

Power Platform

MDX

Tools

SharePoint

Power Platform

Power BI

MDX

Business Objects

Job description

Position: Senior Application Support Developer

• Location: Northwich, Cheshire
• Contract: 12-month Fixed-Term Contract
• Salary: c£43,000 to £47,000 per year

The Opportunity

We are recruiting a Senior Application Support Developer for a public-sector organisation based in the Northwich area of Cheshire, for an experienced technical professional to take ownership of business-critical applications, integrations and data solutions, combining hands-on development with application support and technical delivery.

You will play a key role in developing, maintaining and improving a range of business systems, ensuring they remain secure, reliable and fit for purpose. You will also provide technical leadership across developments and releases, work closely with stakeholders and suppliers, and help resolve complex technical issues.

Role and Responsibilities

• 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.

Experience and Technical Skills

• Experienced in application development, application support and maintaining business-critical systems.
• Strong practical experience across a combination of C#, .NET, SQL Server, database scripting, SSIS, SSAS and APIs/integration.
• Experience with Microsoft technologies including SharePoint, Power Platform and Power BI; Business Objects and MDX would also be beneficial.
• Strong understanding of IT service management, ideally with ITIL Foundation certification or a willingness to obtain it within 12 months.
• Experience managing technical releases, resolving complex incidents and working within secure, controlled development environments.
• The ability to lead technical activities, manage competing priorities and communicate effectively with technical and non-technical stakeholders.