Senior C# (.Net) Developer to utilize ESRI toolset, ArcGIS Pro SDK and FME to develop geospatial applications (Req 494)

S.i. Systems • Calgary, Alberta • Posted March 23, 2026

About the Role

Our public-sector client is seeking a Senior C# (.Net) Developer to utilize ESRI toolset, ArcGIS Pro SDK and FME to develop geospatial applications

Calgary-based client. Hybrid work environment (On-site when needed). 37.5 hour work week.

Must haves:

  • 10+ years of experience as a C# (.Net) developer with a focus on ESRI toolset for building GIS applications
  • Experience with ArcGIS Pro SDK, ArcMap, and FME
  • Experience with developing portals for ArcGIS and ArcGIS online
  • Experience working with, and building spatial databases

    • Nice to haves:

  • Experience with Python (ArcPy)
  • Experience building solutions with traditional Waterfall and /or Agile methodology for software
  • Experience working with Responsive Web Design practices for different form factor devices (iPad, phone, laptop, desktop, etc.)

    • Responsibilities:

  • Develop and maintain GIS app...