Geographic Information System Developer

Lead Senior .NET Developer – Expert in GIS & ESRI

New York, NY 10271 – First 3 months mandatory to be Onsite and then eventually moves to Hybrid

18 Months Contract

The ideal candidate will lead and participate in the system development effort for the project using Microsoft .NET/C#/SQL Server technology stack to support the goals to modernize the current maintenance system..

Responsibilities

• Develop full stack solutions using Microsoft .NET technologies, including C#, VB.NET, ASP.NET, .NET Core, .NET 9.0, Entity Framework, JavaScript libraries, and ArcGIS Maps SDK for .NET.
• Identify, analyze, and develop interfaces and integration flows using Visual Studio Application platform.
• Develop and optimize database structures and queries using Microsoft SQL Server to ensure efficient data storage and retrieval.
• Utilize Azure services to build scalable and reliable cloud-based applications, leveraging services such as Azure App Service, Azure SQL Database, and Azure Functions.
• Integrate GIS applications and data with enterprise systems, improving operational workflows and data accessibility.
• Design, develop, and enhance ESRI ArcGIS Pro-based applications and custom extensions for spatial data editing of linear and point features.
• Implement custom tools, scripts, and workflows in ArcGIS Pro to optimize GIS data editing.
• Manage, process, and analyze spatial data from diverse sources.
• Ensure the integrity and accuracy of GIS datasets, including performing data conversions, quality assurance, and updates.
• Optimize spatial databases and file geodatabases for performance and usability.
• Develop integration solutions for GIS systems with enterprise platforms or third-party tools.
• Automate repetitive GIS workflows using Python (ArcPy), Arcade, ModelBuilder, or similar tools.
• Collaborate with interface designers to integrate user-facing elements with server-side logic, ensuring seamless user experiences.
• Collaborate with stakeholders to gather requirements and ensure alignment with business objectives.
• Participate in code reviews to maintain code quality, identify potential issues, and suggest improvements.
• Troubleshoot and debug complex application issues, providing timely resolutions to maintain system stability.
• Communicate effectively with team members, stakeholders, and project managers to gather requirements, provide updates, and manage expectations.
• Create and maintain technical documentation, including system designs, workflows, and user guides.
• Ensure solutions comply with industry best practices, standards, and security protocols.
• Prepare documentation and conduct knowledge transition to support adoption across the organization and other city agencies.
• Stay current with industry trends and emerging technologies to propose innovative solutions and improve development processes.

REQUIRED QUALIFICATIONS, SKILLS, AND EXPERIENCE:

Note: candidates who do not have the required skills will not be considered.

• Bachelor’s degree in computer science, Software Engineering, Information Systems, Geographic Information Systems (GIS), or a related field. Master’s degree is a plus.
• Proven experience (8+ years) as a full stack .NET Developer with hands-on expertise in C#, VB.Net, ASP.NET, .NET Core, .NET 9.0, Entity Framework, MVC, SQL Server, and Azure.
• Solid understanding of front-end technologies, including HTML, CSS, JavaScript, and related frameworks (e.g., React, Angular).
• Minimum of 4 years of experience in ArcGIS Pro and/ArcMap-based GIS solution design and development.
• Experience with RESTful API development and integration .
• Hands-on development experience with ArcGIS Maps SDK for .NET, Python, ArcPy, Arcade, and Model Builder to create/extend editing tools in ArcGIS Pro .
• Demonstrated proficiency with ESRI product suite , including ArcGIS Pro, ArcGIS Enterprise (Server, Portal, SDE DataStore), ArcGIS Desktop, ArcGIS Online, and ArcMap.
• Demonstrated experience working with geospatial data types in Microsoft SQL Server, Oracle/Oracle Spatial, and PostgreSQL/PostGIS databases.
• Knowledge of emerging trends and technologies in GIS.
• Experience with MS-SQL Server, PostgreSQL, Oracle, and/or other geospatial databases.
• Familiarity with ArcGIS Online capabilities and GIS application development.
• Ability to collaborate effectively within a team environment…