Build FHIR event-driven integrations in Toronto using Java, Node.js, AWS Lambda, and SubscriptionTopic expertise. This senior position requires ten-plus years of experience. The Senior Full Stack Software Developer designs subscription workflows replacing polling-based processes with event notifications. You will implement FHIR Subscription lifecycles, notification Bundles, asynchronous queues, retries, and replay. The work also includes REST APIs, FHIR integrations, and production application logic.

Key Responsibilities
- Define SubscriptionTopic triggers, filters, notification shapes, and conformance requirements
- Implement subscription creation, activation, renewal, deactivation, and status management
- Develop Java and Node.js services, publishers, consumers, and FHIR APIs




- Build AWS Lambda and queue-based event processing integrations
- Implement idempotency, retries, dead-letter handling, replay, and reconciliation

Requirements:
- Ten-plus years of qualified work experience
- Advanced FHIR Subscription and SubscriptionTopic implementation experience
- Java, Node.js, AWS Lambda, and asynchronous queue experience
- Experience processing notification Bundles and FHIR event workflows
- Experience with validation, conformance testing, and production troubleshooting Apply senior Java, Node.js, AWS Lambda, and FHIR Subscription expertise to Toronto-based event-driven healthcare integrations.

📌 Senior FHIR Integration Software Developer (Toronto)
🏢 Maarut
📍 Toronto