{"id":2431564,"url":"https://alion.io/job/geocgi-gis-developer-onsite","title":"GIS Developer (Onsite)","company":{"id":4416588,"name":"GeoCGI","domain":"geocgi.com","url":"https://alion.io/company/geocgi","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":null},"role":"Field & Service","role_family":"Field & Service","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Brussels, Belgium"],"countries":["BE"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":93000,"max":103000,"currency":"USD","period":"year","gross":null,"usd_annual":103000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GDAL","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Rest API","optional":false},{"name":"Vue.js","optional":false},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-01T21:15:01Z","employer_posted_date":"2026-10-06","last_verified_at":"2026-10-13T17:11:38Z","board_verified":true,"closed_at":null,"days_open":11,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":11},"description":"Contract: NATO; Geo & Space Services Section\n(Contingent upon NATO acceptance of Candidate)\nWork Location: NATO Headquarters in Brussels, Belgium\nReporting Hours: Central European Business Hours\nWork Location: Onsite Monday through Friday at NATO Headquarters in Brussels, Belgium\nClearance: DoD Secret Clearance or NATO Secret Clearance\nTravel: No anticipated travel at this time\nCandidates will not be accepted after October 9th.\nGeo cgi 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.\nWorking 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.\nKey Responsibilities:\nDesign, develop, configure, and maintain web-based GIS applications using the ArcGIS Maps SDK for JavaScript and modern web development frameworks.\nImplement and enhance web mapping functionality, including layer management, popups, custom widgets, and client-side spatial operations.\nIntegrate classified and unclassified spatial data and services into secure web-based GIS applications.\nIntegrate spatial data services through REST APIs and develop geospatial data models, layers, and map services.\nDevelop Python-based geoprocessing, automation, data conversion, preprocessing, and ETL workflows.\nBuild and maintain backend services and processing pipelines that expose geospatial functionality to web applications and enterprise systems.\nConfigure and manage map services, feature layers, and tiled datasets to support reliable and performant web delivery.\nPerform performance tuning of backend queries, spatial services, and map rendering.\nMaintain compliance with application security, usability, and accessibility requirements.\nDevelop and maintain technical documentation for application code, service endpoints, workflows, and system architecture.\nProvide technical knowledge transfer and application support to NATO personnel.\nCollaborate with the GIS Project Manager and Geo & Space Services Section staff to troubleshoot issues, implement requirements, and support ongoing GIS initiatives.\nSupport additional GIS development projects and technical activities as directed by the Head of the Geo & Space Services Section.\nAs a candidate supporting NATO:\nHealth and Social Insurance: Coverage through mandatory contributions to the national social security system, including health insurance, pension, unemployment, and family allowance benefits.\nPaid Leave Entitlements: Statutory annual leave, sick leave, and other types of leave as provided under applicable labor laws.\nThe following are requirements of the GIS Developer:\nU.S. Citizen and Active U.S. Passport.\nActive DoD Secret Clearance or Active NATO Secret Clearance\nBachelor’s degree in Computer Science, Geography, Information Technology, or a related technical discipline.\n5+ years of experience in web development using modern JavaScript and HTML technologies and frameworks such as React, Vue.js, or Angular.\nPractical experience developing web mapping applications using the ArcGIS Maps SDK for JavaScript or a comparable web mapping library or SDK.\nExperience implementing web mapping functionality including layers, popups, custom widgets, and client-side spatial operations.\nProficiency with Python for geoprocessing, automation, ETL, and spatial analysis using technologies such as ArcPy, GeoPandas, Shapely, Rasterio, GDAL/OGR, or comparable libraries.\nExperience integrating geospatial data and services through REST APIs.\nAbility to develop and maintain backend services or processing pipelines that expose geospatial functionality.\nExperience configuring and managing map services, feature layers, and tiled geospatial data.\nFamiliarity with Git or comparable version-control technologies.\nFamiliarity with Agile development and project management methodologies.\nStrong analytical, troubleshooting, and problem-solving skills.\nExcellent written and verbal communication skills with the ability to work both independently and collaboratively within a technical team.\nAdvanced English language proficiency.\nBeginner French language proficiency.\nAbility to sign and comply with required Non-Disclosure Agreements. The following are preferred of the GIS Developer:\nExperience developing GIS applications within ArcGIS Enterprise environments.\nExperience supporting secure, classified, or mission-critical geospatial systems.\nExperience optimizing web GIS applications, spatial queries, and map services for performance.\nExperience supporting NATO, international organizations, defense organizations, or other government customers.\nExperience developing technical documentation and providing knowledge transfer to GIS users and technical personnel.\nThe 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. Geo cgi 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.\nGeo cgi provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.","description_format":"text","description_chars":6495,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[{"language":"French","level":"Elementary (A1)","optional":false},{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Annual leave","Health insurance"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-13T09:17:32Z"}],"visa":[],"liveness":{"score":71,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.793,"p_room":0.9,"age_days":11,"expected_fill_days":22,"reasons":["conf:2","win:mid"],"computed_at":"2026-10-13T19:53:06Z"},"pay":{"stated_usd_annual":103000,"is_top_pay":true},"html_url":"https://alion.io/job/geocgi-gis-developer-onsite","json_url":"https://alion.io/job/geocgi-gis-developer-onsite.json","meta":{"generated_at":"2026-10-13T19:53:06Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":30434,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-14T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4416588},"rest":"https://alion.io/mcp/rest/get_company?id=4416588"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgeocgi-gis-developer-onsite"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fgeocgi-gis-developer-onsite"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fgeocgi-gis-developer-onsite"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/geocgi-gis-developer-onsite\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeocgi-gis-developer-onsite"}]}