Identify and acquire data sources from various providers, such as surveys, remote sensors, digitized maps, and online databases.

Build and manage geospatial databases using tools such as ArcGIS, PostgreSQL, Oracle, and SQL Server.

Perform spatial analysis and modeling using tools such as ArcGIS, QGIS, R, Python, and MATLAB.

Develop GIS applications using programming languages such as C++, Java, Python, and JavaScript.

Design and implement user interfaces and web services using tools such as ArcGIS API, Leaflet, OpenLayers, and Google Maps API.

Test, debug, and document GIS applications and ensure their quality and performance.

Provide technical support and training to GIS users and clients.

A GIS developer usually has a bachelor’s degree in computer science or a related field with experience in the field of GIS. A GIS developer also needs to have the following skills:

Spatial data and algorithms: A GIS developer must have a solid understanding of the concepts and methods of spatial data and algorithms, such as coordinate systems, projections, spatial operations, spatial statistics, and spatial optimization.

Data entry and conversion: A GIS developer must be able to handle data entry and conversion tasks, such as geocoding, digitizing, georeferencing, and data cleansing.

Data analysis and visualization: A GIS developer must be able to perform data analysis and visualization tasks, such as querying, filtering, aggregating, clustering, and mapping spatial data.

Programming and software development: A GIS developer must be proficient in programming and software development, such as object-oriented programming, data structures, algorithms, design patterns, debugging, and testing.

Communication and creativity: A GIS developer must be able to communicate effectively with GIS users and clients, as well as demonstrate creativity and innovation in developing GIS solutions.