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.

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