Senior Software Developer - Full Stack Job at Randstad (Toronto)

Job Description

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.

Job Responsibility

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
Design and develop secure, fully responsive, and accessible client-facing web portals utilizing modern frameworks like React, Angular, or Vue paired with TypeScript
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
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
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
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
Write highly optimized, clean, and testable code, conducting rigorous peer code reviews and designing automated unit/integration testing matrices
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

Requirements

8+ years of progressive professional experience in software engineering, application design, and system analysis spanning the entire Software Development Life Cycle (SDLC)
Proven, hands-on expertise designing, developing, and deploying high-volume backend APIs utilizing AWS Lambda, API Gateway, and DynamoDB with Node.js or Python
Deep proficiency building secure, responsive web interfaces using React, Angular, or Vue paired with modern JavaScript/TypeScript configurations
Direct, practical experience implementing secure health data exchange pipelines using HL7 FHIR and SMART on FHIR protocol frameworks
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
Strong practical working knowledge of secure federated authentication, specifically configuring OAuth 2.0 and OpenID Connect (OIDC)
Strong experience building and maintaining enterprise software under structured development methodologies, managing database normalization, and deploying infrastructure via CI/CD pipelines
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

Nice to have

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)

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Senior Software Developer - Full Stack

Job Description

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