Senior C# Developer - Service Fusion

About the job Senior Full-Stack Engineer - C#

About Us: At International Development Resources (IDR), we believe that our greatest asset is our people. We're a diverse, passionate, and forward-thinking team that values creativity, collaboration, and continuous learning. When you join IDR, you become part of a global network dedicated to building technology that transforms businesses and makes a real-world impact.

The opportunity: Our engineering team maintains a high-traffic SaaS platform that serves thousands of daily users, balancing immediate performance needs with long-term architectural health. You will step in as a Senior Full-Stack Engineer to take primary ownership of the full application lifecycle, from high-level design to deployment. By joining us, you gain the autonomy to dictate our technical trajectory and ensure our infrastructure scales reliably as we introduce new features.

What you’ll own

• Build new features across our en...