RQ00685 - Software Developer - Full Stack - Senior for Cancer Screening Project

Project Overview

The Cancer Screening Project involves the development and implementation of secure serverless APIs for a Digital Correspondence solution. These APIs provide the foundational integration layer to store and manage correspondence records, facilitate SMS and email notifications, and enable a secure portal for data retrieval and presentation. The project includes cloud-native serverless architecture, enterprise notification integration, robust authentication and security, and adherence to privacy and information management standards.

Key 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.
• Application Source Code: Clean, modular, and fully commented front-end and back-end code repositories deployed via CI/CD.
• Technical Design Documentation: Detailed architectural diagrams and API swagger/OpenAPI documentation mapping to FHIR specifications.
• Automated Unit Tests: Comprehensive unit and integration test coverage for all developed components.
• Security & Privacy Compliance Configurations: Code-level implementation of RBAC, data encryption, and authorization controls.

Qualifications & Requirements

REQUIRED

• Must be able to work 5 days onsite per week
• Proven experience designing and building highly scalable, serverless backend APIs using AWS Lambda, API Gateway, DynamoDB, and Node.js or Python.
• Hands-on proficiency building secure, responsive, and accessible web applications using modern JavaScript/TypeScript frameworks (e.g., React, Angular, or Vue).
• 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)
• Experience in programming and analysis; specialized software package support at the specified experience level
• Ability to collaborate with IT Professionals throughout the Software Development Life Cycle
• Experience in structured methodologies for the development, design, implementation and maintenance of applications
• Experience in design, code, test, debug and document applications
• Experience in the use of object and/or third generation language development tools
• Experience in one or more programming languages
• Experience in application design, latest design patters, deployment and troubleshooting
• Experience with relational and hierarchical database technologies
• Experience in the use of information retrieval packages using query languages
• Experience with one or more communications protocols
• Experience in structured methodologies for the design, development, implementation and maintenance of applications
• Experience eliciting and documenting information from diverse business area stakeholders and subject matter experts
• Excellent analytical, problem-solving and decision-making skills; verbal and written communication skills; interpersonal and negotiation skills
• A team player with a track record for meeting deadlines
• Proficient with both front end and back end development, including any associated areas such as database design/management and DevOps
• Knowledge and experience with design and implementation of the overall web architecture
• Experience with implementation of approved user interface, design and deployment of database
• Knowledge and experience ensuring the entire stack is designed and built for speed and scalability
• Knowledge and experience with the design and construction of REST API services
• Knowledge and experience integrating front-end UI with the constructed API
• Knowledge and experience in design and implementation of continuous integration and deployment
• Knowledge and experience with programming Internet-ready applications
• Knowledge and experience in rapid application development (RAD) methodologies
• Knowledge and understanding of Information Management principles, concepts, policies and practices
• Experience with middleware and gateways
• Experience reviewing, analyzing, and modifying product installation scripts including encoding, testing, debugging
• Ability to provide post-implementation support and resolve any post-implementation technical issues
• Experience conducting design walkthrough sessions with project team
• Knowledge and understanding of Accessibility for Ontarians with Disability Act (AODA) and related regulations and standards
• Ability to provide user and system documentation as required

NICE TO HAVE

• AWS Certified Developer – Associate or AWS Certified Solutions Architect.
• Knowledge of synthetic health data generation and handling complex PHI/PII data securely in cloud environments.
• Generative AI & LLM Integration: Experience integrating foundational models into enterprise applications using Amazon Bedrock, including prompt engineering and managing token usage.
• Retrieval-Augmented Generation (RAG): Familiarity with building RAG architectures utilizing vector databases (like Amazon OpenSearch Serverless) to securely query unstructured healthcare correspondence or clinical notes.
• AI-Assisted Development: Proficiency using AI coding assistants (like GitHub Copilot, Amazon Q Developer, or Cursor) to accelerate the delivery of secure, well-tested code while adhering to enterprise privacy policies.
• Healthcare NLP: Experience utilizing natural language processing services (such as Amazon Comprehend Medical) to extract meaningful insights, entities, and relationships from raw, unstructured medical text.

EVALUATION CRITERIA

Serverless Backend & API Development - 30 points

• Demonstrated experience building scalable, secure RESTful APIs using AWS Serverless stack (Lambda, API Gateway, DynamoDB).
• Proficiency in the Java and NodeJS backend programming languages

Modern Frontend Development - 30 points

• Hands-on experience building responsive web portals using modern JS/TS frameworks React and Angular
• Experience with responsive design
• Ability to implement strict UI/UX and accessibility standards.

Healthcare Interoperability & Security - 20 points

• Experience implementing OAuth 2.0, OIDC, and SMART on FHIR authentication flows.
• Ability to work with FHIR and the HAPI library
• Experience integrating with Ontario eReferral systems such as Ocean/Novari/etc

Cloud Messaging & Notification Integration - 20 points

• Experience developing applications that leverage AWS End User Messaging or AWS Pinpoint for high-volume SMS/Email delivery.

Key Skills & Competencies

AWS Lambda, API Gateway, DynamoDB, Node.js, Python, React, Angular, Vue, JavaScript, TypeScript, HL7 FHIR, SMART on FHIR, Provider Registry, Hospital Report Manager, Ocean, Novari, Amazon Bedrock, Prompt Engineering, Amazon OpenSearch Serverless, GitHub Copilot, Amazon Q Developer, Cursor, Amazon Comprehend Medical, Java, Responsive Design, OAuth 2.0, OIDC, HAPI FHIR, AWS End User Messaging, AWS Pinpoint, REST API, DevOps, CI/CD, Middleware