Sr. Software Engineer

We are looking for a Sr. Software Engineer to join a Contract opportunity supporting an organization in Jacksonville, Florida. This role centers on building and sustaining integration solutions that connect transportation management workflows, internal applications, and external partner data exchanges. The ideal candidate brings strong C# and .NET expertise, practical knowledge of transportation management environments, and the ability to work across both established transfer methods and newer integration approaches.Responsibilities:• Design, enhance, and maintain C#-based integration services that support business operations and internal tools.• Develop and manage data mapping, transformation, and exchange processes across multiple systems and partner connections.• Support transportation management software workflows by working with application data structures, interfaces, and related databases.• Administer and troubleshoot integrations built on Cleo platforms, including Cleo Integration Cloud, VLTrader, and Lexicom.• Oversee document movement across a mix of legacy transfer methods and external vendor-supported networks to ensure reliable processing.• Collaborate with internal technical teams to use the organization’s C# integration framework for rapid development of new interfaces.• Diagnose production issues, resolve data flow disruptions, and improve the stability and performance of integration processes.