Application Support Engineer

SmartSourcing Ltd · Marlow, Buckinghamshire, United Kingdom

Location
Marlow
Job Type
Full-time
Posted
July 03, 2026

Job Description

Application Support (.Net/SQL) Hybrid/Marlow 3 days per week on site Up to 50K (maybe negotiable)

Our client provides enterprise-grade Field Service Management (FSM) platform, serving multi-vertical service operations across fire & security, facilities management, HVAC, medical devices, and MoD/defence supply chain customers in the UK, Ireland, and internationally.

About the Role

Their platform comprises three core applications: built on a .NET/VB.NET/C# stack with SQL Server, deployed across both Azure-hosted and on-premise (Windows Server) customer environments. They are a strategic 'Spearhead' product, with active investment in a UX/UI overhaul, migration to Azure PaaS, and ongoing feature development.

You'll work shoulder-to-shoulder with the engineering team — confirming genuine defects, providing detailed technical reproduction steps, and occasionally contributing fixes yourself for well-understood issues. This is a hands-on technical role for some...

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