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Innosystech Inc

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Software Developer - Full Stack - Senior

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Summary

Senior full-stack developer building secure serverless APIs (AWS Lambda, API Gateway, DynamoDB) and modern front-ends (React/Angular/Vue) for a public-sector Digital Correspondence solution with SMS/email notifications and portal integration. Requires healthcare interoperability via HL7 FHIR, SMART on FHIR, and Ontario eReferral systems; hybrid in Toronto.

Job Description

Job Description

Job Title: Software Developer - Full Stack - Senior
Location: Toronto, Ontario
Work Model: Hybrid
Submission Deadline: 2026-06-30, 5:00 p.m.


Description / Responsibilities / Skills


Must Have

  • Cloud-Native & Serverless Backend Expertise using AWS (Lambda, API Gateway, DynamoDB)
  • Modern Frontend Development using React, Angular, or Vue
  • Healthcare Integration experience with HL7 FHIR and SMART on FHIR
  • Experience with Ontario Assets (Provider Registry, Hospital Report Manager, etc.)
  • Experience with Ontario eReferral systems (Ocean, Novari, etc.)
  • Public Sector Experience


Description

Project Description

  • Senior Full Stack Software Developer required to build secure serverless APIs for Digital Correspondence solution
  • Supports correspondence storage, notifications (SMS/email), and portal integration
  • Work includes cloud-native architecture, authentication, security controls, and privacy standards


Responsibilities

  • Lead technical design, development, and implementation of full-stack serverless applications
  • Develop and consume RESTful APIs and FHIR resources
  • Integrate portal and backend with AWS messaging services
  • Implement authentication and authorization (OAuth 2.0, OIDC, SMART on FHIR)
  • Write testable, efficient code and conduct code reviews


Required Skills

  • Strong programming and SDLC experience
  • Experience in design, coding, testing, debugging, and documentation
  • Experience with relational and hierarchical databases
  • Experience with communication protocols and data integration
  • Ability to gather and document business requirements
  • Strong problem-solving and communication skills


Full Stack Skills

  • Front-end and back-end development expertise
  • Web architecture design and API development
  • Database design and deployment
  • REST API design and integration
  • CI/CD implementation and deployment
  • Middleware and gateway experience
  • Post-implementation support and troubleshooting


Desired Skills

  • AWS certifications
  • Generative AI, LLM, and Bedrock integration
  • Retrieval-Augmented Generation (RAG)
  • NLP with healthcare tools (Comprehend Medical)
  • AI-assisted development tools


Skills

Experience and Skill Set Requirements

Serverless Backend & API Development - 30 Points

  • AWS Lambda, API Gateway, DynamoDB
  • Node.js / Java backend
  • RESTful API design


Modern Frontend Development - 30 Points

  • React / Angular frameworks
  • Responsive UI development
  • Accessibility and UI/UX standards


Healthcare Interoperability & Security - 20 Points

  • OAuth 2.0, OIDC, SMART on FHIR
  • HL7 FHIR integration
  • eReferral systems


Cloud Messaging & Integration - 20 Points

  • AWS Pinpoint
  • AWS End User Messaging

Skills

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