GIS Developer (Onsite)

Contract: NATO; Geo & Space Services Section

(Contingent upon NATO acceptance of Candidate)

Work Location: NATO Headquarters in Brussels, Belgium

Reporting Hours: Central European Business Hours

Work Location: Onsite Monday through Friday at NATO Headquarters in Brussels, Belgium

Clearance: DoD Secret Clearance or NATO Secret Clearance

Travel: No anticipated travel at this time

Candidates will not be accepted after October 9th.

Geocgi is seeking an experienced GIS Developer to support the NATO International Staff (IS) Operations Division, Situation Centre (SITCEN), Geo & Space Services Section at NATO Headquarters in Brussels, Belgium. This role will support the development, modernization, and maintenance of web-based GIS applications used to provide geospatial information in support of NATO senior decision-makers, intelligence analysts, task forces, exercises, and other mission-critical activities.

Working closely with the GIS Project Manager, the GIS Developer will design, develop, and deploy secure web GIS applications; integrate spatial data and services; develop geospatial processing and automation workflows; and support the performance and maintainability of NATO GIS applications. The ideal candidate brings strong web development experience using modern JavaScript frameworks, hands-on experience with the ArcGIS Maps SDK for JavaScript or similar web mapping technologies, and proficiency with Python-based geospatial processing and automation. This position must be performed 100% onsite at NATO Headquarters in Brussels, Belgium.

Key Responsibilities:

• Design, develop, configure, and maintain web-based GIS applications using the ArcGIS Maps SDK for JavaScript and modern web development frameworks.
• Implement and enhance web mapping functionality, including layer management, popups, custom widgets, and client-side spatial operations.
• Integrate classified and unclassified spatial data and services into secure web-based GIS applications.
• Integrate spatial data services through REST APIs and develop geospatial data models, layers, and map services.
• Develop Python-based geoprocessing, automation, data conversion, preprocessing, and ETL workflows.
• Build and maintain backend services and processing pipelines that expose geospatial functionality to web applications and enterprise systems.
• Configure and manage map services, feature layers, and tiled datasets to support reliable and performant web delivery.
• Perform performance tuning of backend queries, spatial services, and map rendering.
• Maintain compliance with application security, usability, and accessibility requirements.
• Develop and maintain technical documentation for application code, service endpoints, workflows, and system architecture.
• Provide technical knowledge transfer and application support to NATO personnel.
• Collaborate with the GIS Project Manager and Geo & Space Services Section staff to troubleshoot issues, implement requirements, and support ongoing GIS initiatives.
• Support additional GIS development projects and technical activities as directed by the Head of the Geo & Space Services Section.

As a candidate supporting NATO:

• Health and Social Insurance: Coverage through mandatory contributions to the national social security system, including health insurance, pension, unemployment, and family allowance benefits.
• Paid Leave Entitlements: Statutory annual leave, sick leave, and other types of leave as provided under applicable labor laws.

The following are requirements of the GIS Developer:

• U.S. Citizen and Active U.S. Passport.
• Active DoD Secret Clearance or Active NATO Secret Clearance
• Bachelor’s degree in Computer Science, Geography, Information Technology, or a related technical discipline.
• 5+ years of experience in web development using modern JavaScript and HTML technologies and frameworks such as React, Vue.js, or Angular.
• Practical experience developing web mapping applications using the ArcGIS Maps SDK for JavaScript or a comparable web mapping library or SDK.
• Experience implementing web mapping functionality including layers, popups, custom widgets, and client-side spatial operations.
• Proficiency with Python for geoprocessing, automation, ETL, and spatial analysis using technologies such as ArcPy, GeoPandas, Shapely, Rasterio, GDAL/OGR, or comparable libraries.
• Experience integrating geospatial data and services through REST APIs.
• Ability to develop and maintain backend services or processing pipelines that expose geospatial functionality.
• Experience configuring and managing map services, feature layers, and tiled geospatial data.
• Familiarity with Git or comparable version-control technologies.
• Familiarity with Agile development and project management methodologies.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent written and verbal communication skills with the ability to work both independently and collaboratively within a technical team.
• Advanced English language proficiency.
• Beginner French language proficiency.

Ability to sign and comply with required Non-Disclosure Agreements. The following are preferred of the GIS Developer:

• Experience developing GIS applications within ArcGIS Enterprise environments.
• Experience supporting secure, classified, or mission-critical geospatial systems.
• Experience optimizing web GIS applications, spatial queries, and map services for performance.
• Experience supporting NATO, international organizations, defense organizations, or other government customers.
• Experience developing technical documentation and providing knowledge transfer to GIS users and technical personnel.

The annual base salary range for this position is anticipated to be $93,000-$103,000 USD. The listed salary range represents our good faith estimate for this position. Please note that the salary information is a general guideline only. Geocgi considers factors such as (but not limited to) scope and responsibilities of the position, candidate’s education & work experience, training & certifications, and key skills as well as market and business considerations at the time of the offer.