We are seeking a highly accomplished Senior Software Developer - Full Stack to lead the technical design, development, and deployment of secure, serverless Application Programming Interfaces (APIs) and interactive front-end portals for a critical Digital Correspondence platform. In this role, you will build the foundational integration layer req
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uired to securely capture, store, and manage provincial cancer screening records, facilitate high-volume automated SMS and email notification streams, and ensure data accessibility. Operating within a high-security health informatics framework, you will engineer scalable, cloud-native services that seamlessly connect frontend user interfaces with centralized provincial health assets and clinical registries.
Project: Cancer Screening / Digital Correspondence Modernization
Location: Toronto, ON (Hybrid - Up to 5 days onsite, subject to hiring manager's discretion)
Duration: 5-month contract.
Advantages
High-Impact Public Health Mission: Directly contribute to provincial clinical transformation by delivering the foundational engine powering critical patient cancer screening correspondence.
Advanced Serverless Sandbox: Expand your engineering credentials by managing true, event-driven microservices architectures at scale on AWS.
Elite Health-Informatics Footprint: Deepen your technical market value by mastering cutting-edge clinical data protocols like FHIR and enterprise regional eReferral hooks.
Future-Ready Domain Exposure: Work inside a progressive technical scope designed to support advanced cloud architectures, automated workflows, and high-tier data protection controls.
Responsibilities
Serverless Backend Engineering: Architect, build, and optimize highly scalable, cloud-native backend APIs using serverless frameworks, specifically AWS Lambda, API Gateway, and DynamoDB utilizing Node.js or Python.
Modern Frontend Development: Design and develop secure, fully responsive, and accessible client-facing web portals utilizing modern frameworks like React, Angular, or Vue paired with TypeScript.
Healthcare Interoperability Integration: Implement secure health data exchanges by developing and consuming RESTful interfaces mapped strictly to international health informatics standards, including HL7 FHIR resources and SMART on FHIR profiles.
Provincial Asset Connectivity: Establish robust backend data-sharing linkages and communication proxies with central Ontario health assets, including the Provider Registry, Hospital Report Manager (HRM), and regional eReferral ecosystems like Ocean and Novari.
Enterprise Notification Management: Integrate web interfaces and message broker layers with AWS cloud messaging engines (AWS Pinpoint or AWS End User Messaging) to automate dynamic patient notification workflows.
Identity & Access Security Governance: Enforce ironclad authentication and authorization patterns across multi-tenant systems using identity protocols such as OAuth 2.0, OpenID Connect (OIDC), and role-based data policies.
Quality Engineering & Peer Triage: Write highly optimized, clean, and testable code, conducting rigorous peer code reviews and designing automated unit/integration testing matrices.
Compliance & Technical Documentation: Ensure all frontend user experiences and system outputs fully respect information privacy directives and accessibility regulations (AODA/WCAG standards), authoring complete reference runbooks and data schemas.
Qualifications
Core Full-Stack Seniority: 8+ years of progressive professional experience in software engineering, application design, and system analysis spanning the entire Software Development Life Cycle (SDLC).
AWS Serverless Specialization: Proven, hands-on expertise designing, developing, and deploying high-volume backend APIs utilizing AWS Lambda, API Gateway, and DynamoDB with Node.js or Python.
Modern Frontend Mastery: Deep proficiency building secure, responsive web interfaces using React, Angular, or Vue paired with modern JavaScript/TypeScript configurations.
Clinical Data Standards Fluency: Direct, practical experience implementing secure health data exchange pipelines using HL7 FHIR and SMART on FHIR protocol frameworks.
Ontario Health Infrastructure Acumen: Verified technical familiarity integrating software solutions with provincial assets—specifically the Provider Registry, Hospital Report Manager (HRM), or eReferral platforms (Ocean or Novari) is strictly required.
Identity Framework Literacy: Strong practical working knowledge of secure federated authentication, specifically configuring OAuth 2.0 and OpenID Connect (OIDC).
Methodological Grounding: Strong experience building and maintaining enterprise software under structured development methodologies, managing database normalization, and deploying infrastructure via CI/CD pipelines.
Soft Skills: Outstanding analytical, decision-making, and verbal/written communication skills, with an established history of presenting technical designs during team walkthroughs and working collaboratively inside public sector or health-related project spaces.
Highly Preferred Assets:
Active professional cloud credentials, such as the AWS Certified Developer – Associate or AWS Certified Solutions Architect designation.
Foundational exposure to AI-assisted coding tools or generative AI architectures (e.g., Amazon Bedrock, vector databases like OpenSearch, or Amazon Comprehend Medical).
Summary
If you're interested in the "Senior Software Developer - Full Stack" role based in Toronto, we encourage you to apply online at www.randstad.ca. Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
show more
We are seeking a highly accomplished Senior Software Developer - Full Stack to lead the technical design, development, and deployment of secure, serverless Application Programming Interfaces (APIs) and interactive front-end portals for a critical Digital Correspondence platform. In this role, you will build the foundational integration layer required to securely capture, store, and manage provincial cancer screening records, facilitate high-volume automated SMS and email notification streams, and ensure data accessibility. Operating within a high-security health informatics framework, you will engineer scalable, cloud-native services that seamlessly connect frontend user interfaces with centralized provincial health assets and clinical registries.
Project: Cancer Screening / Digital Correspondence Modernization
Location: Toronto, ON (Hybrid - Up to 5 days onsite, subject to hiring manager's discretion)
Duration: 5-month contract.
Advantages
High-Impact Public Health Mission: Directly contribute to provincial clinical transformation by delivering the foundational engine powering critical patient cancer screening correspondence.
...
Advanced Serverless Sandbox: Expand your engineering credentials by managing true, event-driven microservices architectures at scale on AWS.
Elite Health-Informatics Footprint: Deepen your technical market value by mastering cutting-edge clinical data protocols like FHIR and enterprise regional eReferral hooks.
Future-Ready Domain Exposure: Work inside a progressive technical scope designed to support advanced cloud architectures, automated workflows, and high-tier data protection controls.
Responsibilities
Serverless Backend Engineering: Architect, build, and optimize highly scalable, cloud-native backend APIs using serverless frameworks, specifically AWS Lambda, API Gateway, and DynamoDB utilizing Node.js or Python.
Modern Frontend Development: Design and develop secure, fully responsive, and accessible client-facing web portals utilizing modern frameworks like React, Angular, or Vue paired with TypeScript.
Healthcare Interoperability Integration: Implement secure health data exchanges by developing and consuming RESTful interfaces mapped strictly to international health informatics standards, including HL7 FHIR resources and SMART on FHIR profiles.
Provincial Asset Connectivity: Establish robust backend data-sharing linkages and communication proxies with central Ontario health assets, including the Provider Registry, Hospital Report Manager (HRM), and regional eReferral ecosystems like Ocean and Novari.
Enterprise Notification Management: Integrate web interfaces and message broker layers with AWS cloud messaging engines (AWS Pinpoint or AWS End User Messaging) to automate dynamic patient notification workflows.
Identity & Access Security Governance: Enforce ironclad authentication and authorization patterns across multi-tenant systems using identity protocols such as OAuth 2.0, OpenID Connect (OIDC), and role-based data policies.
Quality Engineering & Peer Triage: Write highly optimized, clean, and testable code, conducting rigorous peer code reviews and designing automated unit/integration testing matrices.
Compliance & Technical Documentation: Ensure all frontend user experiences and system outputs fully respect information privacy directives and accessibility regulations (AODA/WCAG standards), authoring complete reference runbooks and data schemas.
Qualifications
Core Full-Stack Seniority: 8+ years of progressive professional experience in software engineering, application design, and system analysis spanning the entire Software Development Life Cycle (SDLC).
AWS Serverless Specialization: Proven, hands-on expertise designing, developing, and deploying high-volume backend APIs utilizing AWS Lambda, API Gateway, and DynamoDB with Node.js or Python.
Modern Frontend Mastery: Deep proficiency building secure, responsive web interfaces using React, Angular, or Vue paired with modern JavaScript/TypeScript configurations.
Clinical Data Standards Fluency: Direct, practical experience implementing secure health data exchange pipelines using HL7 FHIR and SMART on FHIR protocol frameworks.
Ontario Health Infrastructure Acumen: Verified technical familiarity integrating software solutions with provincial assets—specifically the Provider Registry, Hospital Report Manager (HRM), or eReferral platforms (Ocean or Novari) is strictly required.
Identity Framework Literacy: Strong practical working knowledge of secure federated authentication, specifically configuring OAuth 2.0 and OpenID Connect (OIDC).
Methodological Grounding: Strong experience building and maintaining enterprise software under structured development methodologies, managing database normalization, and deploying infrastructure via CI/CD pipelines.
Soft Skills: Outstanding analytical, decision-making, and verbal/written communication skills, with an established history of presenting technical designs during team walkthroughs and working collaboratively inside public sector or health-related project spaces.
Highly Preferred Assets:
Active professional cloud credentials, such as the AWS Certified Developer – Associate or AWS Certified Solutions Architect designation.
Foundational exposure to AI-assisted coding tools or generative AI architectures (e.g., Amazon Bedrock, vector databases like OpenSearch, or Amazon Comprehend Medical).
Summary
If you're interested in the "Senior Software Developer - Full Stack" role based in Toronto, we encourage you to apply online at www.randstad.ca. Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!
Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.
Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.
This posting is for existing and upcoming vacancies.
show more
