Gis Web Developer Jobs in Ontario (NOW HIRING)

ADGA Group is a Canadian-owned defence and security company that provides integrated, mission-critical technical solutions to Government and industry, specializing in C5ISRT, simulation and training, cyber and infrastructure security, and program delivery. With nearly 60 years of experience, ADGA supports federal clients and Canada’s intelligence and enforcement agencies through embedded teams, advisory services, and full project execution, applying deep operational expertise and innovation to strengthen national safety, resilience, and sovereignty. Guided by a strong social mandate, the company creates meaningful employment for veterans of the CAF and RCMP and other professionals committed to public service, while fostering a safe, inclusive, and agile workplace that supports career development, professional growth, and impactful work across Canada.

We are seeking a skilled Geographic Software Developer to support the development, integration, and maintenance of GIS-enabled web applications and supporting infrastructure within a secure environment. This role combines full-stack software development, geospatial systems expertise, and Linux-based deployment practices. The successful candidate will work closely with systems analysts, engineers, and operations teams to deliver reliable, scalable geospatial solutions. 

This is a proactive recruitment initiative, with potential start dates in the coming weeks or months, contingent on contract award. 

Key Responsibilities 

• Develop and maintain GIS web applications and geospatial databases based on user and system requirements  
• Design, implement, and optimize database schemas and web-based data models  
• Provide technical input and design guidance on system architecture and solution design  
• Implement and manage source code control, versioning, and branching strategies  
• Build, configure, and administer Linux-based environments  
• Develop and deploy applications using container technologies (e.g., Docker)  
• Support application lifecycle activities including testing, troubleshooting, and performance validation  
• Provide incident investigation, diagnostic, resolution, and recovery support  
• Create and maintain technical documentation, including SOPs, build guides, and architecture diagrams  
• Support network design considerations, including traffic flow and system integration  

Technical Environment 

• Operating Systems: Windows, Linux (Red Hat, Ubuntu, CentOS)  
• Development: MS Visual Studio  
• Languages: JavaScript, TypeScript, Python, Java, SQL, HTML/CSS  
• Frameworks / Tools: Node.js, Apache  
• Cloud & DevOps: Azure, GitHub, Docker, VMware  
• Databases: PostgreSQL (PostGIS), SQLite  
• GIS Technologies: Leaflet, OpenLayers, MapLibre, CesiumJS  
• Geospatial Services: MapServer, Nominatim, Google Earth  
• Data Formats: GeoJSON, KML/KMZ, Shapefiles  
• Protocols: WMS, WFS, TMS, OpenStreetMap  

• College diploma or University degree in Computer Science, Engineering, IT, or related field  
• Minimum 5 years of recent geospatial software development and maintenance experience 
• Demonstrated experience performing at least six (6) of the following:  
  • GIS web application and database development  
  • Source code control, versioning, and branching  
  • Solution design and technical advisory support  
  • Database and web model/schema design  
  • Network design and traffic flow documentation  
  • Application testing and data validation  
  • Application support and troubleshooting  
  • Technical documentation (SOPs, build guides)  
  • Container-based deployment (e.g., Docker)  
• Minimum 3 years of Linux administration experience  
• Minimum 2 years of containerization experience (Docker or equivalent)  

Desired / Asset Qualifications 

• 5–9+ years of geospatial development experience  
• Experience with geospatial web APIs (Leaflet, OpenLayers, MapLibre, CesiumJS)  
• Experience configuring and documenting GIS server infrastructure  
• Strong experience producing technical documentation and architecture diagrams  
• Familiarity with open-source GIS platforms such as MapServer and Nominatim  

• Must currently hold or be eligible to obtain and maintain a Secret (Level II) Canadian Federal Government Security clearance.

If you require accommodations during any stage of the application or interview process, please let us know. We are happy to work with you to meet your needs.

*Our recruitment systems include artificial intelligence–enabled tools; however, AI is not used to screen, evaluate, or make decisions about applicants for this role.

*Unless otherwise stated, all job postings reflect a current vacancy at the time of publication.

Work-Life Balance  

We strongly support a healthy and productive work-life balance. This starts with a flexible approach to work, and policies designed to support employees through their day-to-day routines and major life events. For example, we offer a Maternity/Parental Top-Up (up to 52 weeks) and a Reservist Leave Top-Up (up to 180 days). 

Belong@ADGA  

ADGA continuously strives to integrate advanced Diversity, Equity & Inclusion (DEI) approaches and practices into our work culture. Our employee-based DEI Committee explores activities and invites discussions that foster an environment where all employees feel valued, respected, and heard.

Compensation  

Above and beyond our commitment to offer a competitive base salary, ADGA has a company-wide profit-sharing plan for all full-time and part-time employees.

Comprehensive Benefits and Total Rewards  

We offer a comprehensive benefit program, providing employees with the choice between base or enhanced plans. Depending on the plan, ADGA pays for Health & Dental, a Health Spending Account, Short-Term Disability, an Employee Assistance Program, and a Telemedicine service. Also offered: discounts on gym memberships, 5,000+ perks through Perkoplis, a Deferred Profit Sharing Plan, and access to a wide range of other employee-centric services and savings programs.