C# Software Developer

TEKsystems • Billings, MT • Posted June 24, 2026

Position Overview

C# Software Developer (Desktop Applications)
No flexibility on rate range listed ($85k and under) and no corp-to-corp offerings
Overview
We’re partnering with a well-established, product-driven software company to hire a C# Software Developer to help evolve a proprietary ERP platform used by customers across industrial and healthcare industries.
This is a backend-heavy, full-stack engineering role where you’ll work on a mission-critical system, contributing to both new feature development and modernization initiatives. If you enjoy solving complex problems and working on systems that have real business impact, this is a strong opportunity to grow your career.
What You’ll Do

+ Design, build, and maintain enterprise-level applications with a focus on performance, scalability, and maintainability

+ Develop new features and enhancements within a core ERP platform

+ Contribute to modernization efforts, refactoring legacy components into modern .NET ...