Senior Full Stack Developer, Digital Experience Platform (DxP)

Must Haves:

• 7 years experience delivering full stack enterprise web applications using modern frameworks such as React or equivalent
• Experience working with headless CMS platforms such as Contentful
• Hands-on experience integrating with enterprise IAM solutions including OAuth2 OpenID Connect Azure AD and Azure External ID
• Experience building secure microservices using REST APIs and/or GraphQL
• Experience working within CI/CD pipelines in cloud environments such as Microsoft Azure

Description

• 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.

Required Skills

• 7 years experience delivering full stack enterprise web applications using modern frameworks such as React or equivalent
• Experience working with headless CMS platforms such as Contentful
• Hands-on experience integrating with enterprise IAM solutions including OAuth2 OpenID Connect Azure AD and Azure External ID
• Experience building secure microservices using REST APIs and/or GraphQL
• Experience working within CI/CD pipelines in cloud environments such as Microsoft Azure
• Familiarity with TypeScript JavaScript and modern frontend development practices
• Experience implementing accessibility standards aligned to WCAG / AODA
• Experience working in Agile delivery environments

Responsibilities

• Platform Engineering
  • Build scalable full stack solutions aligned to DxP architecture using React 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 ID
  • 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
• DevOps 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
  • Support defect remediation
• Documentation
  • Support API and technical documentation
  • Contribute to operational knowledge transfer

General Skills

• Full stack engineering experience across frontend (React ) 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 communication skills
• Strong problem-solving capability
• Experience working in Agile environments
• Commitment to quality and maintainability

Desirable Skills

• Experience building applications on Microsoft Azure
• Experience with enterprise SSO and federated identity
• Experience designing microservices C#
• 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

Deliverables

• Platform Development
  • Development of headless frontend components using 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
• Backend & APIs
  • Development of enterprise APIs 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 ID
  • 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
• DevOps & 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 Sustainability
  • Development of reusable platform components to support long-term scalability
  • Contribution to maintainable architecture and sustainable engineering practices

Additional Terms

Performance Expectations

• Quarterly performance reviews against agreed-upon objectives and deliverables
• Minimum 80% achievement of approved quarterly objectives
• Development and maintenance of detailed project documentation
• Regular status reporting as per project management framework
• Adherence to all Supply Ontario policies procedures and professional standards

Work Arrangements

• Hybrid work arrangement with minimum 2-3 days per week on-site at Supply Ontario offices
• Flexibility to adjust schedule based on project needs and stakeholder availability
• Availability for occasional evening/weekend work during critical project phases

Intellectual Property and Confidentiality

• All work products documentation and intellectual property created during the engagement remain the property of Supply Ontario
• Strict adherence to confidentiality agreements and data protection protocols
• Non-disclosure agreement required as condition of engagement
• Return of all Supply Ontario property and materials upon contract completion

Probationary Period

• Initial 90-day probationary period to assess fit and capabilities
• Clear performance objectives to be established within first 30 days
• Bi-weekly check-ins during probationary period
• Option to terminate with 5 business days notice during probationary period

Early Termination Provisions

• Supply Ontario may terminate the contract with 10 business days written notice without cause
• Immediate termination for:
• Breach of confidentiality or security protocols
• Failure to meet minimum performance standards after documented warning
• Violation of Supply Ontario policies or professional conduct standards
• Misrepresentation of qualifications or experience
• Extended unavailability without approved leave

Extension and Renewal Provisions

• Contract extension is at the sole discretion of Supply Ontario
• Extension decisions will align with Supply Ontarios internal procurement policies and procedures
• Factors considered for extension include but are not limited to:
  • Achievement of defined deliverables and performance metrics
  • Ongoing organizational need for services
  • Budget availability and value for money
  • Contractors demonstrated reliability and cultural fit
  • Project continuity requirements
• Extension terms:
  • Maximum extension periods as per Supply Ontario procurement policy
  • Rate adjustments if any must align with approved rate cards
  • Additional or modified terms may be introduced during extension
• Extension process:
  • Review initiated minimum 30 days before contract end date
  • Appropriate management approvals as per delegation of authority
  • Written notice of extension decision provided minimum 30 days before contract end
  • No guarantee or implicit right to extension regardless of performance
• Supply Ontario reserves the right to:
  • • Modify role requirements during extension period
    • Adjust work arrangements and conditions
    • Implement new policies or procedures
    • Require additional qualifications or certifications
• Contractor acknowledgment:
  • • No expectation of automatic renewal
    • Extension discussions do not constitute commitment
    • Rights to compete for other opportunities if extension not granted
• FFS costs are directly variable and task-based. Each resource is engaged for a specific defined body of work for a fixed period not as a permanent operational role. Days are approved and directed by the DDT management team. Resources stand down when their assigned tasks are complete. This is the single most important cost management lever in the FFS model and a key governance distinction from an ongoing vendor contract.