A services company in California is actively seeking a new Senior GIS Developer / System Administrator to join their growing team. In this role, the Senior GIS Developer / System Administrator will be responsible for developing and maintaining web-based GIS applications, administering enterprise GIS infrastructure, and working with stakeholders across the organization to deliver innovative mapping solutions that drive real-world impact.
Responsibilities:
- Customize and extend the VertiGIS Studio / Geocortex suite to meet business needs
- Design and develop .NET web applications that integrate with GIS platforms
- Build automation tools and integrations using Python with familiarity with PowerShell
- Administer and support the ESRI ArcGIS platform (Enterprise, Pro, etc.)
- Manage configurations, upgrades, patches, and SSL certificates for GIS systems
- Troubleshoot and resolve technical issues, ensuring reliable system performance
- Collaborate with internal teams to gather requirements and deliver solutions
- Perform other duties, as needed
Qualifications:
-  5+ years of experience in GIS development with strong ESRI expertise
- Experience with Web Application Development
- Proficiency in .NET (C#, ASP.NET, .NET Core)
- Hands-on experience with VertiGIS Studio / Geocortex
- Strong skills in System Administration, including patching, upgrades, and SSL management
- Experience with databases such as SQL Server or PostgreSQL/PostGIS
- Strong problem-solving and troubleshooting abilities
- Excellent communication and collaboration skills
Desired Skills:
- Experience in government or large enterprise GIS environments
- Knowledge of cloud-based GIS deployments (prefer AWS)
- Solid understanding of ITIL practices and SLA-driven environments



