GIS Software Developer Internship

Geographic Communication Systems (GCS)
Missoula, Montana
In office internship

Geographic Communication Systems (GCS) is a geospatial IT consulting firm founded in 2004. We specialize in building custom applications and enterprise solutions on the Esri ArcGIS platform. Our work integrates ArcGIS Enterprise, ArcGIS Online, cloud infrastructure, and business systems to support state and local government, utilities, forestry, energy, and private industry.

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GCS is seeking an ArcGIS Software Developer Intern to support development of custom applications using the ArcGIS Developer platform. This internship provides hands on experience working with ArcGIS APIs and SDKs to build web mapping applications, integrate spatial services, and support real customer projects in a professional consulting environment.

This position is ideal for students or recent graduates pursuing computer science, software engineering, GIS, or related technical degrees with a strong interest in geospatial application development.

• Assist with development of web mapping applications using the ArcGIS JavaScript API
• Support integration with ArcGIS Online and ArcGIS Enterprise services
• Work with feature services, map services, and REST APIs
• Contribute to front end development using modern JavaScript frameworks
• Assist with backend or scripting tasks that support GIS workflows
• Test, debug, and document ArcGIS based applications
• Collaborate with GIS analysts, developers, and solution architects

• Currently enrolled in or recently graduated from a technical degree program
• Working knowledge of Java Script
• Basic understanding of web development concepts (HTML, CSS, REST APIs)
• Familiarity with GIS concepts such as layers, feature services, and maps
• Strong problem solving skills and attention to detail
• Ability to communicate clearly and work as part of a team

• Experience with the ArcGIS JavaScript API or other ArcGIS SDKs
• Familiarity with ArcGIS Online or ArcGIS Enterprise
• Exposure to frameworks such as React or similar
• Experience with Python for scripting or automation
• Understanding of spatial data formats and geodatabases
• Interest in cloud based GIS and web application architecture

• Location Missoula, Montana
• In office position
• Paid internship
• Duration 3 months
• Flexible scheduling around academic commitments

• Hands on experience with the ArcGIS Developer platform and APIs
• Experience building custom web mapping applications
• Exposure to ArcGIS Enterprise and ArcGIS Online architectures
• Mentorship from experienced ArcGIS developers and architects
• Real world consulting experience supporting active customer projects