C# Software Developer

TEKsystems • Billings, MT

1d • $36 - $43 • Remote

About The Position

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.

Requirements

• 3+ years of professional software development experience (ideal range: 3–5 years)
• Strong hands-on experience with C# and .NET (object-oriented programming)
• Solid understanding of SQL Server and relational database design
• Experience building or supporting desktop applications (WPF preferred)
• Familiarity with APIs, services, and distributed systems
• Understanding of data structures and system performance considerations
• Exposure to multi-threading and concurrency concepts
• Familiarity with design patterns such as MVVM or MVC
• Comfortable working across both legacy systems and modern environments

Nice To Haves

• Experience with application modernization or system rewrites
• Experience working with Azure or cloud-based deployments
• Familiarity with AI-assisted development tools (e.g., Copilot)

Responsibilities

• 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 frameworks
• Work across the full SDLC: requirements → development → testing → deployment
• Collaborate with product owners and engineering teams to deliver business-driven solutions
• Write clean, maintainable, and well-structured code following best practices
• Troubleshoot and resolve complex technical challenges (performance, concurrency, system behavior)
• Support bug fixes, system optimization, and ongoing improvements
• Assist with occasional escalated production issues and participate in an on-call rotation

Benefits

• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed