Software Developer
Insight Global • Oklahoma City, OK • Posted July 18, 2026
Position Overview
Job Description
We are seeking a C# Developer to support a multi-phase application development project for a financial services platform focused on administering 403(b), 457, IRA, and retirement plans. This is a greenfield-heavy effort involving a rewrite of an existing application, replacing manual processes with automated, scalable workflows. The developer will play a key role in building modern APIs, business logic, and data integration capabilities.
Key Responsibilities
Design, develop, and maintain C#/.NET-based REST APIs to support a financial services platform
Build and implement business logic that drives plan administration workflows
Integrate and process structured data files into backend systems (data ingestion & transformation)
Collaborate with team members to modernize and replace manual processes with automated solutions
Utilize Entity Framework to manage communication between application layers and SQL databases
Participate in application rewrite ...
We are seeking a C# Developer to support a multi-phase application development project for a financial services platform focused on administering 403(b), 457, IRA, and retirement plans. This is a greenfield-heavy effort involving a rewrite of an existing application, replacing manual processes with automated, scalable workflows. The developer will play a key role in building modern APIs, business logic, and data integration capabilities.
Key Responsibilities
Design, develop, and maintain C#/.NET-based REST APIs to support a financial services platform
Build and implement business logic that drives plan administration workflows
Integrate and process structured data files into backend systems (data ingestion & transformation)
Collaborate with team members to modernize and replace manual processes with automated solutions
Utilize Entity Framework to manage communication between application layers and SQL databases
Participate in application rewrite ...