Senior GIS Developer

About the role We are looking for a Senior GIS Developer to design, build and support enterprise geospatial applications and data workflows. You will develop web, desktop and API-based GIS solutions, automate geoprocessing activities and contribute to scalable, secure and reliable GIS platforms. The role combines hands-on software engineering with technical leadership and collaboration across delivery teams. What you will do

• Design, develop, test and maintain enterprise GIS applications using Esri ArcGIS technologies.

• Build web, desktop and API-based solutions using C#, .NET and ArcGIS development frameworks.

• Develop geoprocessing tools, ArcPy and Python automation scripts, and spatial ETL workflows.

• Configure and support ArcGIS Enterprise components, including ArcGIS Server, Portal for ArcGIS and ArcGIS Pro.

• Publish and maintain GIS services, feature services, geoprocessing services, web maps and scene layers.

• Develop 2D and 3D mapping, visualisation and spatial-analysis solutions.

• Perform spatial data conversion, migration, validation and geodatabase administration.

• Integrate GIS platforms with enterprise applications, databases, cloud services and third-party systems through secure APIs and services.

• Create reusable GIS components, APIs and widgets using ArcGIS Maps SDK for JavaScript.

• Contribute to solution design, technical reviews, effort estimation, performance tuning and production troubleshooting.

• Apply coding, testing, documentation, security and quality standards throughout the development lifecycle.

• Provide technical guidance and knowledge sharing to other developers.

What you bring Required experience and skills

• At least 8 years of relevant experience in GIS application development and enterprise GIS implementation, including at least 5 years of hands-on experience with the ArcGIS Enterprise ecosystem.

• Hands-on experience with ArcGIS Enterprise, ArcGIS Server, ArcGIS Pro, Portal for ArcGIS, ArcGIS Maps SDK for JavaScript, geoprocessing services, ModelBuilder and ArcPy.

• Strong software development experience in C# and modern .NET, including ASP.NET Core, REST APIs and web services.

• Proficiency in Python scripting for geoprocessing, automation and data-processing workflows.

• Experience with enterprise spatial databases such as PostgreSQL/PostGIS, Microsoft SQL Server or Oracle Spatial, including spatial modelling, query optimisation and performance tuning.

• Experience developing and supporting 2D and 3D GIS solutions, including scene layers, Scene Viewer or ArcGIS 3D Analyst.

• Experience with source control, code review, testing, troubleshooting and secure software-development practices.

• Ability to communicate technical concepts clearly and work effectively with cross-functional stakeholders.

Additional skills that would be useful

• Experience with Entity Framework, Dapper, microservices, React, Angular, JavaScript or TypeScript.

• Experience with FME or comparable spatial ETL tools.

• Experience with CesiumJS, BIM-GIS integration, digital twins, LiDAR, point clouds or large-scale 3D geospatial data.

• Knowledge of remote sensing, image processing, geospatial AI or machine-learning applications.

• Experience with ArcGIS Utility Network, ArcGIS GeoEvent Server or ArcGIS Knowledge.

• Experience delivering GIS solutions in cloud or government cloud environments.

• Exposure to government, land administration, utilities, transportation, smart cities, environmental, natural-resources or infrastructure programmes.

Qualifications

• Bachelor's degree in GIS, Computer Science, Information Technology, Engineering or a related discipline, or equivalent practical experience.

• Esri or other relevant technical certifications are an advantage.