Senior GIS Technology Developer

Location: Brampton, ON (Hybrid, 2 days on-site)

Duration: 12-Month Contract

About the Opportunity

We are seeking a Senior GIS Technology Specialist/Developer to support a large-scale enterprise GIS modernization initiative within a complex public sector environment. In this role, you will lead the migration, redevelopment, testing, and deployment of critical GIS applications from a cloud-based ArcGIS Online environment to a modern ArcGIS Enterprise 11.5 platform.

This is a highly visible project that will directly contribute to the retirement of a legacy GIS infrastructure and the implementation of a scalable, enterprise-wide GIS ecosystem. Working alongside architects, project managers, developers, and business stakeholders, you will help deliver innovative geospatial solutions that support multiple business functions across the organization.

Your Responsibilities

• Lead the migration and redevelopment of enterprise web and mobile GIS applications integrated with platforms such as EAM, CRM, and ERP systems.
• Provide senior-level technical expertise to resolve complex GIS development, migration, and system integration challenges, including root cause analysis and long-term solutions.
• Collaborate with architects, project managers, and stakeholders to define solution designs, technical approaches, development estimates, and platform configurations.
• Design and develop scalable GIS solutions using the Esri technology stack, ensuring alignment with business and technical requirements.
• Create and maintain technical documentation, including architecture diagrams, system specifications, implementation plans, and backup and recovery procedures.
• Develop and execute system, integration, and user acceptance testing plans to ensure solution quality and production readiness.
• Deploy high-quality application components into production environments while adhering to established IT standards, governance, and security practices.
• Design reusable frameworks and shared components to support consistency and efficiency across development teams.
• Mentor developers and provide technical leadership on complex GIS initiatives and escalated technical matters.
• Research emerging technologies, industry trends, and best practices to enhance application development, migration strategies, and service delivery.

Skills and Qualifications

• 10+ years of experience developing web and mobile GIS applications using Esri technologies.
• Degree in Computer Science, Geography, or a related discipline, combined with advanced education in GIS, application development, or a related field.
• Expert knowledge of ArcGIS Enterprise 11.x, ArcGIS Online, ArcGIS Pro 3.x, ArcGIS JavaScript API, ArcGIS Desktop SDKs, Python, Arcade, and Microsoft development technologies.
• Strong experience with JavaScript, HTML5, Java, XML, JSON, GEOJSON, REST/SOAP services, web servers, and application servers.
• Hands-on experience working with SQL Server and Enterprise Geodatabases.
• Deep understanding of object-oriented design and development principles, service-oriented architecture, systems integration, and enterprise application development.
• Demonstrated experience mentoring technical teams and providing guidance on complex development initiatives.
• Strong analytical, problem-solving, communication, and stakeholder management skills, with the ability to manage competing priorities in a fast-paced environment.

Preferred Skills

•  Experience with ArcGIS Online Assistant, ArcGIS Enterprise Assistant, Survey123, Experience Builder, VertiGIS, Web Studio, and Network Explorer.
• Experience working in Microsoft Azure environments, including high-availability cloud solutions and Azure DevOps.
• Knowledge of Agile delivery methodologies, SDLC, ITIL, COBIT, and PMBOK frameworks.
• Esri Associate or Professional certifications and/or a Master's degree in Computer Science, Geography, or a related field are considered strong assets.

We appreciate the time and effort all applicants invest in their submissions. Please note that only candidates shortlisted for this role will be contacted directly. However, your profile will remain under consideration for future opportunities that align with your experience and career goals. All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions. Our human recruiters review all applications and always make the final hiring decision. On occasion, we also use AI-assisted tools to help review applications.