Job Description & How to Apply Below
Hybrid(flexible) - Front St., Toronto
Supply Ontario is seeking a highly skilled Senior Full Stack Developer to support the design and delivery of modern digital platform capabilities as part of our Digital Experience Platform (DxP).
This role will contribute to building and evolving Supply Ontarios public-facing and internal digital services - including but not limited to - account management, vendor workflows, search and discovery experiences, and secure integrations - as we modernize procurement and supply chain services across Ontarios public sector.
Operating at the intersection of engineering delivery, enterprise architecture, and product development, this role will support the transition to a scalable, secure, and service-based digital platform supporting OPS ministries, BPS organizations, and vendor communities.
A core outcome for this role will be to help move Supply Ontario from fragmented digital experiences to a modern, headless, cloud-native platform built on reusable components and secure integrations.
Responsibilities
Build scalable full stack solutions aligned to DxP architecture using Next.js , React , and .NET C#
Develop reusable frontend components aligned to Supply Ontarios design system
Develop secure APIs using REST and/or GraphQL
Contribute to modular, composable platform architecture
Integration & Identity
Integrate DxP services with enterprise IAM platforms such as Azure AD and Azure External
Implement authentication and authorization workflows using OAuth2 and OpenID Connect
Support role-based access and secure data exchange
CMS & Content Delivery
Configure CMS-driven components in Contentful
Support migration of legacy content
Build dynamic user-facing experiences
Digital Experience
Support user registration and account journeys
Enable vendor workflows and reporting
Build search and discovery functionality
Deliver authenticated and public user interfaces
Dev Ops Support
Support Dev, QA, and Production environments in Microsoft Azure
Contribute to CI/CD pipelines using modern deployment practices
Participate in code reviews
Testing & Quality
Support unit, functional, and performance testing
Address accessibility requirements
Documentation
Support API and technical documentation
Contribute to operational knowledge transfer
General Skills
Full stack engineering experience across frontend ( React , Next.js ) and backend ( .NET C# )
Ability to design scalable and secure applications
Strong collaboration with Product, Architecture, and Delivery teams
Understanding of headless CMS and API-driven platforms
Ability to implement secure authentication using OAuth2 / OpenID Connect
Strong problem-solving capability
Experience working in Agile environments
Commitment to quality and maintainability
Experience building applications on Microsoft Azure
Experience with enterprise SSO and federated identity
Experience supporting bilingual platforms
Familiarity with secure deployment practices
Experience with performance optimization
Experience integrating analytics tools such as Google Tag Manager or Google Analytics
Platform Development
Development of headless frontend components using Next.js and React aligned to Supply Ontarios design system
Creation of reusable UI components and patterns to support scalable digital service delivery
Implementation of secure authenticated and public user experiences
Development of enterprise APIs using .NET C# to support user management and platform services
Implementation of role-based access control (RBAC) and secure service authorization
Integration with enterprise IAM platforms to support identity-driven application functionality
Integration
Integration with identity platforms including Azure AD and Azure External
Integration with analytics platforms such as Google Tag Manager
Integration with enterprise Azure cloud services and supporting platform capabilities
CMS & Content Delivery
Development of CMS-driven components using Contentful for site navigation, homepage elements, and dynamic content
Implementation of structured content models supporting vendor information and platform services
Digital Experience
Implementation of secure user account management workflows
Delivery of search and discovery experiences supporting procurement and vendor information access
Enablement of vendor interaction workflows and reporting capabilities
Dev Ops & Platform Operations
Support for CI/CD pipelines and automated deployment practices
Contribution to environment readiness and platform stability across Dev, QA, and Production environments in Azure
Testing & Quality Assurance
Support for unit, functional, and integration testing across platform components
Validation of accessibility compliance aligned to WCAG / AODA standards
Documentation & Knowledge Transfer
Development of API documentation and technical integration guidance
Creation of technical documentation to support platform operations and maintainability
Platform…
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