Senior Full Stack .NET Developer (ArcGIS/GIS Required) - Onsite in New York City

4+ years of experience with ArcGIS Pro and/or ArcMap-based GIS solution design and development is mandatory.

Prior NYC government experience is highly preferred.

Candidates must be within a commutable distance to New York City (10271)

This job is onsite in New York City (10271) & Interviews are onsite

18-month contract

We are seeking a Senior Full Stack .NET Developer with strong hands-on experience developing ESRI ArcGIS Pro solutions. This role combines enterprise .NET application development with advanced GIS development to support the design, customization, integration, and enhancement of ArcGIS Pro-based applications and geospatial data solutions. Candidates should have extensive experience with C#, ASP.NET, .NET Core/.NET 9, SQL Server, Azure, and the ESRI ArcGIS platform. This is an onsite position in New York City.

Key Responsibilities

• Design, develop, and maintain enterprise full stack applications using C#, ASP.NET, .NET Core/.NET 9, SQL Server, and Azure.
• Develop and enhance ESRI ArcGIS Pro applications, custom editing tools, extensions, and GIS workflows.
• Integrate GIS applications with enterprise systems and third-party platforms using REST APIs and related technologies.
• Design, optimize, and maintain geospatial databases and spatial data solutions across SQL Server, Oracle, and PostgreSQL.
• Automate GIS workflows using Python, ArcPy, Arcade, Model Builder, and related technologies.
• Collaborate with business stakeholders and technical teams to gather requirements, troubleshoot issues, and deliver scalable GIS solutions.

Required Qualifications

• Bachelor’s degree in Computer Science, GIS, Information Systems, Software Engineering, or a related field.
• 8+ years of full stack .NET development experience using C#, ASP.NET, .NET Core/.NET 9, Entity Framework, SQL Server, and Azure.
• 4+ years of hands-on ESRI ArcGIS Pro and/or ArcMap application development experience.
• Experience developing with ArcGIS Maps SDK for .NET.
• Strong experience with ArcGIS Enterprise, ArcGIS Online, ArcMap, and the ESRI product suite.
• Experience with Python, ArcPy, Arcade, and Model Builder for GIS automation.
• Experience developing REST APIs and integrating enterprise applications.
• Experience working with geospatial databases including SQL Server, Oracle Spatial, and PostgreSQL/PostGIS.
• Experience with Git, Azure DevOps, and modern software development best practices.

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