ECS Resource Group are currently working in partnership with a global managed service provider who's end client is in the Manufacturing sector. We are assisting them with the search for a Applications Developer on a contract basis. This is a contract that is inside IR35 and is based on-site every day in Dumfries & Galloway, Scotland. Key Responsibilities: Modify and enhance the legacy MES system to integrate with SAP and SAP Middleware. Develop and maintain integration components using .NET (C#, VB, ASP) and REST/WEB APIs. Analyse and optimise SQL queries to ensure efficient data exchange between MES and SAP. Collaborate with cross-functional IT teams to align integration efforts and resolve technical issues. Support and troubleshoot interactions between AS/400-based MES and modern SAP infrastructure Key Skills: Strong experience in Microsoft .NET development (C#, VB, ASP.NET). Proficient in Microsoft SQL for data manipulation and integration. Solid understanding of RESTful APIs and Web Services for system connectivity. Experience working with AS/400 systems, particularly in manufacturing or MES environments. Ability to bridge legacy and modern systems with clear documentation and clean code practices. Further job details available upon application. Please note, due to internal capabilities it will be difficult for us to take internal calls regarding your application - please direct all queries to (url removed), and they will be responded to, alongside your application ASAP. If you haven't received a response within 1 working day, please call the direct line which is (phone number removed). ECS Recruitment Group Ltd is acting as an Employment Business in relation to this vacancy