Russell Tobin & Associates is hiring on behalf of one of its esteemed clients. Job ID: 26-19271 Job Title: Software Developer - Full Stack Location: Toronto, ON (Onsite) Duration: 126 Business Days with possible extension Client: Public Sector Pay Rate: CAD $95 per hour Role Overview Seeking a Senior Software Developer to support the timely software development, and implementation of secure serverless Application Programming Interfaces (APIs) that will enable the Digital Correspondence solution. These APIs will provide the foundational integration layer required to securely store and manage correspondence records, facilitate the transmission of SMS and email notifications, and enable the Digital Correspondence Portal to retrieve, manage, and present correspondence data in a secure and efficient manner. The development activities involve the implementation of cloud-native serverless architecture, integration with enterprise notification services, application of robust authentication and security controls, and adherence to applicable privacy, security, and information management standards. Must Have: Cloud-Native & Serverless Backend Expertise: Proven experience designing and building highly scalable, serverless backend APIs using AWS (Amazon Web Services) Lambda, API Gateway, DynamoDB, and Node.js or Python. Modern Frontend Development: Hands-on proficiency building secure, responsive, and accessible web applications using modern JavaScript/TypeScript frameworks (e.g., React, Angular, or Vue). Healthcare Integration & Standards: Practical experience integrating with health informatics standards including HL7 FHIR and SMART on FHIR for secure health data exchange. Experience with Ontario Assets (such as the Provider Registry, Hospital Report Manager, etc) Experience with Ontario eReferral systems (such as Ocean, Novari, etc) Role and responsibilities. Lead the technical design, development, and implementation of full-stack serverless applications for the Digital Correspondence solution. Develop and consume RESTful APIs and FHIR resources to securely retrieve, manage, and present correspondence data. Integrate front-end portals and backend services with AWS cloud messaging services (AWS Pinpoint, AWS End User Messaging) to facilitate SMS and email notification workflows. Implement robust identity, authentication, and authorization controls (e.g., OAuth 2.0, OIDC, SMART on FHIR). Write clean, well-documented, testable, and efficient code while conducting rigorous peer code reviews. Russell Tobin is a leading minority-owned professional and technical recruitment and staffing advisory organization. We are comprised of specialized practices focusing on a variety of skill sets and industries. Having a depth and breadth of industry expertise, our subject matter experts are able to provide tailored and swift sourcing solutions to fulfill client hiring needs. In other words, we connect top talent with companies. We are the staffing arm of the Pride Global network, a minority-owned integrated human capital solutions firm, with additional offerings in vendor management, payroll programs, and business process optimization. #LI-VB1 #RTA