Senior Application Developer (.NET + GIS)

Job Description

About the project

Design, build and implement a new Building Identification and Maintenance System that modernizes the agency’s existing application on the Microsoft .NET / SQL Server / Azure stack, with GIS integration.

Responsibilities

• Build full-stack solutions with C#, ASP.NET, .NET Core / .NET 9, MVC, Entity Framework and JavaScript frameworks
• Design and optimize SQL Server databases, including spatial data
• Build cloud apps on Azure (App Service, Azure SQL, Functions)
• Develop REST APIs and integrate GIS data and mapping with enterprise systems
• Lead and guide a team of developers, and run code reviews
• Prepare technical documentation and run knowledge transfer

Must-have skills

• 8+ years as a full-stack .NET developer (C#, ASP.NET, .NET Core, MVC, EF, SQL Server, Azure)
• Bachelor’s degree in CS, Software Engineering, IS, GIS or a related field
• Hands-on work with geospatial data in SQL Server, Oracle Spatial and/or PostgreSQL/PostGIS
• Integration of web mapping libraries (e.g., ArcGIS JS, Leaflet, OpenLayers)
• Front-end skills: HTML5, CSS, JavaScript, React or Angular
• Git/GitHub, Azure DevOps and CI/CD
• Experience leading teams, and strong communication with technical and non-technical staff

Nice to have

• Azure certification (e.g., AZ-204)
• Master’s degree
• Public-sector experience
• Familiarity with NYC property and building data (BIN/BBL, PLUTO, Geosupport)