Job Description

Assignment: RQ00738 - Software Developer - Full Stack - Senior

Requisition: RQ00738

Job Title: Senior Full Stack Software Developer for FHIR and Search Development

Client: Ontario Health

Start Date: 2026-08-31

End Date: 2027-04-23

Department: Digital Excellence in Health

Office Location: 525 University Avenue, Toronto

Business Days: 164.00

Location: Hybrid (onsite as needed)

Public Sector Experience: Must Have

Must Haves:

• Senior Full Stack software development experience delivering complex healthcare, cloud, integration, or digital health modernization projects.
• Extensive Java and Spring Boot microservices development experience.
• Experience designing and developing REST APIs and FHIR APIs.
• Hands-on experience with Smile CDR implementation and customization.
• Experience with AWS HealthLake and FHIR repository implementation.
• Experience developing healthcare interoperability solutions using FHIR R4/R4B, SMART on FHIR, HL7v2, OAuth2/OIDC, and JWT.
• Experience integrating healthcare applications with Provider Registry, Master Data Management systems, and the EPIC EHR, Meditech and Cerner
• Experience with Central Intake hubs such as RICOH and Novari
• Experience implementing advanced provider directory search using OpenSearch or Elasticsearch.
• Experience with PostgreSQL and healthcare data modelling.
• Experience using AWS services including ECS, Lambda, API Gateway, S3, SNS, SQS, EventBridge, CloudWatch, IAM, Secrets Manager, and CloudFormation or CDK.
• Experience developing secure APIs using OAuth2, OpenID Connect, JWT, RBAC, and confidential client authentication.
• Excellent communication, documentation, and stakeholder collaboration skills

Description

Background Information:

• The Agency is expanding the Provincial Health Services Directory (PHSD) to incorporate artificial intelligence capabilities that improve provider discovery, referral quality, and healthcare navigation across provincial digital health applications. The solution will utilize PHSD provider, practitioner, organization, healthcare service, specialty, location, and service metadata together with clinical referral context to provide intelligent recommendations while maintaining traceability to authoritative source data. AI agents will consume PHSD FHIR APIs, Smile CDR, AWS HealthLake, the Agency Master Data Management, and other provincial digital health assets to provide grounded responses rather than generative opinions. The project includes development of reusable AI services, MCP servers, semantic search capabilities, vector-based retrieval, prompt orchestration, evaluation frameworks, and secure integration with SMART on FHIR applications and provincial healthcare systems. The implementation will emphasize explainability, auditability, privacy, security, and clinical confidence while supporting future AI-enabled healthcare workflows across the Agency.

Responsibilities:

• Design, develop, maintain, and support PHSD backend services using Java and Spring Boot.
• Develop and enhance React-based user interfaces supporting provider search, directory management, and administration.
• Design and implement FHIR R4/R4B APIs using Smile CDR and AWS HealthLake.
• Develop real-time provider data synchronization between PHSD and the Agency master data management platforms.
• Design and implement integrations with Provider Registry, hospital information systems, and provincial healthcare services.
• Build scalable healthcare search capabilities using OpenSearch and FHIR search standards.
• Design, develop, and maintain REST APIs supporting internal and external consuming applications.
• Implement SMART on FHIR authentication and authorization workflows.
• Develop secure OAuth2/OIDC authentication and JWT authorization services.
• Implement healthcare interoperability using HL7v2 and FHIR messaging patterns.
• Design scalable cloud-native AWS architectures supporting high availability and operational resilience.
• Develop data transformation, validation, synchronization, and governance services supporting provider, practitioner, organization, healthcare service, and location information.
• Participate in architecture reviews, technical design sessions, sprint planning, backlog refinement, and code reviews.
• Support automated testing, CI/CD deployment pipelines, production releases, troubleshooting, and operational support.
• Produce technical documentation, API specifications, deployment documentation, and knowledge transfer materials.

Desired Skills:

• Experience implementing or supporting provider directory solutions.
• Experience integrating with hospital information systems including Epic, Oracle Health (Cerner), MEDITECH, or other Canadian EMRs.
• Experience implementing provider, practitioner, organization, location, and healthcare service master data management solutions.
• Experience implementing healthcare search platforms using OpenSearch for provider and service discovery.
• Experience with FHIR Subscriptions, FHIR Messaging, EventBridge, SNS, and SQS for event-driven healthcare integration.
• Experience validating FHIR implementations using Inferno, Touchstone, or other interoperability testing frameworks.
• Experience configuring and supporting AWS HealthLake, Smile CDR, and healthcare interoperability platforms.
• Experience implementing secure SMART on FHIR applications, confidential clients, and backend services.
• Experience designing highly available AWS architectures using ECS, Lambda, API Gateway, CloudFront, S3, Aurora PostgreSQL, and CloudWatch.
• Experience implementing monitoring, logging, auditing, and operational support using AWS CloudWatch and related AWS services.

Required Skills:

• Strong software development experience using Java, Spring Boot, React, TypeScript, and modern enterprise application development practices.
• Experience designing, developing, securing, and supporting RESTful APIs and distributed microservice architectures.
• Experience implementing healthcare interoperability solutions using FHIR R4/R4B, HL7 v2, SMART on FHIR, and healthcare messaging standards.
• Experience developing and configuring Smile CDR FHIR repositories, transactions, validation, search, and interoperability services.
• Experience implementing healthcare data solutions using AWS HealthLake and integrating healthcare data across multiple systems.
• Experience developing secure authentication and authorization solutions using OAuth 2.0, OpenID Connect (OIDC), JWT, and role based access control.
• Experience integrating healthcare applications with Provider Registry, Master Data Management platforms, hospital information systems
• Experience implementing advanced provider and service directory search capabilities using OpenSearch.
• Experience designing and developing cloud native applications using AWS services including ECS, Lambda, API Gateway, S3, EventBridge, SNS, SQS, IAM, CloudWatch, and Secrets Manager.
• Experience developing data synchronization, transformation, validation, and governance services supporting provider, practitioner, organization, location, and healthcare service data.
• Experience with PostgreSQL database design, performance optimization, and data modelling.
• Experience using Git, GitHub, GitHub Actions, automated testing, CI/CD pipelines, and modern DevOps practices.
• Strong analytical, problem solving, technical documentation, and communication skills with the ability to collaborate effectively across architecture, operations, interoperability, and business teams.

Evaluation Criteria: 100 Points

• Senior Full Stack development experience using Java, Spring Boot, React, REST APIs, cloud-native architecture, and enterprise application development 25 Points
• Healthcare interoperability experience including Smile CDR, AWS HealthLake, FHIR R4/R4B, SMART on FHIR, HL7v2, OAuth2/OIDC, Provider Registry, and healthcare integration 25 Points
• Cloud, API, search, and data engineering experience including AWS, OpenSearch, PostgreSQL, API Gateway, Lambda, ECS, CI/CD, and cloud architecture 25 Points
• Healthcare modernization, master data management, stakeholder collaboration, documentation, and knowledge transfer 25 Points

Deliverables:

• Java Spring Boot backend services.
• React user interface enhancements.
• Smile CDR FHIR implementation and configuration.
• AWS HealthLake integration and data synchronization.
• FHIR APIs supporting provider, practitioner, organization, healthcare service, and location resources.
• SMART on FHIR authentication and authorization implementation.
• REST API development and documentation.
• Provider directory search enhancements using OpenSearch.
• Real-time read/write provider synchronization.
• Master data management integration services.
• Hospital information system integration components.
• Cloud-native AWS deployment artifacts.
• CI/CD pipeline implementation and automation.
• Unit tests, integration tests, API tests, and technical documentation.
• Deployment support, production implementation, and operational knowledge transfer.

Additional Terms

• The term of this Engagement Assignment is for 164 Business Days. The Engagement Assignment may be extended for unused Business Days at the Agency's discretion.
• The resource will comply with the Agency's policies and procedures.
• The resource will be issued an Agency laptop and is expected to provide at least one additional monitor, an external keyboard and a mouse at their own expense. In addition, when the resource is working from their home location they must have a private office space and are not permitted to work in an open communal space. Internet connection must be hard-wired and suitable bandwidth to support the IT requirements of this role. If these conditions cannot be met within their home office space, the resource will transition to full time in office, and the hybrid option will no longer be available.
• The Agency systems cannot be accessed from outside the province of Ontario, and Agency assets including laptops and related equipment cannot be removed from the province of Ontario, without prior written approval from the Agency.
• Assignment Type: This position is currently listed as "Hybrid". The resource under this request will be required to work onsite as per Hiring Manager sole discretion.

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