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Added 1 hour ago
CO
STRATEGIC ENTERPRISE INTEGRATION & MODERNIZATION LEAD (DATA MANAGEMENT)
City of Toronto
Toronto, ON
- Full-time
Division & Section: Chief Financial Officer's Office, Strategic Enterprise Integration & Mod
Added 2 hours ago
M
RQ00829 - Product Manager - Senior
Maarut
Toronto, ON
- Contract
Senior-level product management experience for complex digital health, integration, or enterprise application products, including product strategy, roadmaps, feature prioritization, backlog…
Added 2 hours ago
M
RQ00828 - Software Developer - Full Stack - Senior
Maarut
Toronto, ON
- Contract
…v2 messages and connect those workflows to FHIR resources, application services, and Enterprise Pub/Sub…
Added 2 hours ago
Technical Solutions Development Manager, Workspace, Google Cloud
Google
Waterloo, ON
As a Workspace Delivery Manager, you will serve as the primary customer interface for Google Workspace implementations, overseeing deployment strategy, optimization, and service delivery…
Added 4 hours ago
Z
Technical Account Manager
Zoom
NB
- Full-time
…mark it on your calendar. We look forward to receiving your…
Added 5 hours ago
NS
Distribution Asset Strategy Engineer
Nova Scotia Power
Halifax, NS
- Full-time
Company, Department: Nova Scotia Power, Enterprise Asset Management
Added 5 hours ago
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Manager, Global Practice and Delivery (Solutions & Services)
Acceldata
Kitchener, ON
- Full-time
We're looking for a Manager, Global Practice and Delivery to build, lead, and scale a global team of Solutions Consultants and Forward-Deployed Engineers responsible for enterprise…
Added 5 hours ago
A
Manager, Global Practice and Delivery (Solutions & Services)
Acceldata
Toronto, ON
- Full-time
We're looking for a Manager, Global Practice and Delivery to build, lead, and scale a global team of Solutions Consultants and Forward-Deployed Engineers responsible for enterprise…
Added 5 hours ago
N
Software Engineer 4 - Kubernetes AI Platform Engineering
Nutanix
Vancouver, BC
- $151,000 to $227,000 CAD / year
- Full-time
NKP is a complete, enterprise-grade, production-ready platform based on Kubernetes that serves modern applications. By taking the best of the Cloud Native Computing Foundation (CNCF)…
Added 6 hours ago
NS
Distribution Asset Strategy Engineer
Nova Scotia Power
Halifax, NS
- Full-time
Company, Department: Nova Scotia Power, Enterprise Asset Management
Added 6 hours ago
HT
IT Internal Auditor
Husky Technologies
Bolton, ON
- Full-time
…successful execution of our internal audit framework built on an enterprise risk management governance model. You will be part of a global team and report to the Senior Manager; IT Audit…
Added 6 hours ago
C
Risk & Compliance Project Manager and Application Manager
Citi
Mississauga, ON
- Full-time
The Risk & Compliance Project Manager and Application Manager is a dual-mandate leadership role designed to oversee the end-to-end lifecycle, stability, and evolution of critical enterprise…
Added 7 hours ago
C
Alliance / Partner Marketing Manager (Hyperscalers)
CGI
Toronto, ON
- Full-time
The Alliance / Partner Marketing Manager (Hyperscalers) plans and delivers joint marketing programs with CGI's strategic hyperscaler alliances: Microsoft, Amazon Web Services (AWS) and…
Added 9 hours ago
A
Technical Operations Analyst (TOC)
ATB
Calgary, AB · Edmonton, AB
- Full-time
File Transfer Operations: Supporting ATB’s Enterprise File Transfer Tool MFT (SFTP), including failure support, monitoring, and troubleshooting.
Added 9 hours ago
HP
Commercial Account Manager - Networking
Hewlett Packard Enterprise
Calgary, AB
- Full-time
Commercial Account Manager - NetworkingThis role has been designed as ‘’Onsite’ with an expectation that you will primarily work from an HPE partner/customer office.
Added 12 hours ago
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PLM Functional Architect – Teamcenter
Techso
Montreal, QC
- Full-time
Strong knowledge of one or more key Teamcenter modules, including Structure Manager, Workflow Designer, BMIDE, Change Management, and Active Workspace;
Added 12 hours ago
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PLM Technical/Functional Architect – Teamcenter
Techso
Montreal, QC
- Full-time
Strong knowledge of one or more key Teamcenter modules, including Structure Manager, Workflow Designer, BMIDE, Change Management, and Active Workspace;
Added 12 hours ago
QP
Area Manager
QuadReal Property Group
Toronto, ON · Etobicoke
- Full-time
Reporting to the Director, Self Storage Operations, the Area Manager, Self Storage is responsible for leading facility-level operations and execution across a designated portfolio of…
Added 12 hours ago
HR
Data & Business Intelligence (BI) Analyst
Hopewell Residential
Calgary, AB
- Full-time
Reporting To: Senior Manager, Innovation & Technology
Added 13 hours ago
UO
Lead, Program Partnerships & Projects, UCalgary Continuing Education
University of Calgary
Calgary, AB
- Full-time
Reporting to the Manager, Administrative Operations, the Lead, Program Partnerships & Projects is a key member of the Office of the Associate Vice-President (Continuing Education) team and…
Added 13 hours ago
QP
Area Manager
QuadReal Property Group
Toronto, ON · Etobicoke, ON
- Full-time
Reporting to the Director, Self Storage Operations, the Area Manager, Self Storage is responsible for leading facility-level operations and execution across a designated portfolio of…
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B
Business Banking Relationship Manager Trainee
BMO
Guelph, ON
- Full-time
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Added 13 hours ago
Digital Architect
Government of Alberta
AB
The Forward Delivery & Modernization Branch is looking for two (2) Digital Architects. Reporting to the Manager, Development, the Digital Architect is a visionary and technical leader…
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Manager, M&A Execution, Human Capital
Deloitte
Toronto, ON
- Full-time
As a Manager within Deloitte’s M&A Execution, Human Capital team, you will lead the delivery of Human Capital workstreams across mergers, acquisitions, divestitures, carve-outs,…
Added 14 hours ago
CP
Senior Manager, Cybersecurity Operations & Vulnerability Management
CAAT Pension Plan
Toronto, ON · Head Office
- Full-time
Reporting to the Senior Director, Cybersecurity Operations and Vulnerability Management, the Senior Manager, Security Operations & Vulnerability Management leads CAAT’s enterprise security…

Maarut

RQ00828 - Software Developer - Full Stack - Senior

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Posting language: English
Posted: Oct 29, 2026

Original job description

Required Skills:

Strong hands-on experience with FHIR Subscription and SubscriptionTopic, including topic definitions, resource triggers, filter criteria, subscription status and lifecycle, notification Bundles, delivery channels, heartbeat notifications, and event retrieval.
Senior-level experience developing Java and Node.js services, REST APIs, FHIR integrations, event publishers and consumers, and production application logic.
Strong experience implementing FHIR Subscription and SubscriptionTopic workflows with AWS Lambda and asynchronous queues, including notification Bundle handling, retries, dead-letter handling, idempotency, concurrency, duplicate-event handling, and replay.
Strong React development experience building production applications that use SMART on FHIR launch, authorization, context, scopes, and FHIR API integration patterns.
Hands-on experience with NextGen Connect (Mirth), HL7 v2 integration, and Ontario digital health standards and provincial services, including the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral, covering message transformation, validation, routing, acknowledgements, error handling, conformance testing, and production support.

Responsibilities:

Assess polling-based integrations and workflows, identify the clinical or application events that should trigger notifications, and map each workflow to the appropriate FHIR SubscriptionTopic and Subscription behaviour.
Define, implement, and maintain SubscriptionTopic resources, including supported resource triggers, event definitions, filter parameters, notification shapes, and conformance requirements.
Implement Subscription creation, validation, activation, status management, renewal, deactivation, delivery configuration, heartbeat handling, event retrieval, and subscriber lifecycle controls.
Design, develop, test, and support Java and Node.js services that publish events, manage subscriptions, consume notification Bundles, call FHIR APIs, and route resulting actions to application workflows.
Develop and maintain AWS Lambda functions and queue-based integrations for asynchronous event processing, validation, enrichment, workflow coordination, and downstream application updates.
Implement reliable processing controls for idempotency, duplicate detection, retries, dead-letter handling, controlled concurrency, ordering where required, reconciliation, replay, and recovery.
Develop and support React applications that use SMART on FHIR to present subscription-related workflows, launch within supported contexts, obtain authorized FHIR access, and interact with FHIR resources and application APIs.
Develop and maintain NextGen Connect (Mirth) channels that receive, transform, validate, route, and acknowledge HL7 v2 messages and connect those workflows to FHIR resources, application services, and Enterprise Pub/Sub events.
Validate Subscription, SubscriptionTopic, notification Bundle, and related FHIR resource instances against the applicable FHIR definitions, The Agency profiles, terminology, and business rules.
Implement event correlation, structured logging, metrics, alerts, audit records, subscription health monitoring, and operational dashboards so teams can trace processing across publishers, Enterprise Pub/Sub, subscribers, and downstream applications.
Create and maintain unit, integration, contract, conformance, interface, regression, end-to-end, performance, and failure-recovery tests covering FHIR subscription workflows, backend services, serverless processing, HL7 v2, and React components.
Apply secure configuration, authentication, authorization, least-privilege access, privacy-aware logging, and appropriate handling of personal health information, and prepare technical designs, mappings, runbooks, and knowledge-transfer materials with project stakeholders.

Desired Skills:

Experience implementing the FHIR R5 Subscription model or the R5 subscription backport for earlier FHIR releases, including SubscriptionTopic, rest-hook or websocket delivery, status notifications, heartbeat notifications, and event retrieval.
Experience with AWS messaging, integration, and observability services such as Amazon SQS, Amazon SNS, Amazon EventBridge, Amazon API Gateway, and Amazon CloudWatch.
Experience with infrastructure as code, automated build and deployment pipelines, containerized workloads, configuration management, and automated security scanning.
Experience defining versioned FHIR profiles, event schemas, interface contracts, compatibility rules, correlation identifiers, and governance practices for shared enterprise integrations.
Experience using NextGen Connect (Mirth) to integrate with Ontario digital health standards and provincial services, including the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral, with hands-on responsibility for HL7 v2 transformation, validation, routing, acknowledgements, conformance testing, and production support.

Required Competencies:

Advanced FHIR Subscription and SubscriptionTopic experience, including resource triggers, filter criteria, lifecycle and status management, notification Bundles, delivery channels, heartbeat notifications, event retrieval, validation, and conformance testing.
FHIR Subscription and SubscriptionTopic implementation experience for event-driven clinical workflows, including topic and event design, subscription filters and lifecycle management, notification Bundle processing, asynchronous queue processing, idempotency, retries, dead-letter handling, duplicate-event handling, observability, replay, and production troubleshooting using Java, Node.js, and AWS Lambda.
React and SMART on FHIR experience, including launch and authorization flows, scopes, context handling, FHIR API integration, accessible user-interface development, automated testing, and secure handling of clinical information.
NextGen Connect (Mirth), HL7 v2, and Ontario digital health standards experience, including the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral, covering message transformation, validation, routing, acknowledgements, error handling, interface and conformance testing, production support, and integration with FHIR, Java, Node.js, or serverless components.

Rated Criteria:

Advanced FHIR Subscription and SubscriptionTopic experience, including resource triggers, filters, lifecycle and status management, notification Bundles, delivery channels, heartbeat notifications, event retrieval, validation, and conformance testing. 25 Points
Demonstrated FHIR Subscription and SubscriptionTopic implementation experience using Java, Node.js, AWS Lambda, and asynchronous queues, including topic and event design, subscription filters and lifecycle management, notification Bundle processing, idempotency, retries, dead-letter handling, duplicate-event handling, replay, observability, and production troubleshooting. 25 Points
React and SMART on FHIR experience, including launch and authorization flows, scopes, context handling, FHIR API integration, accessible user-interface development, and testing. 25 Points
NextGen Connect (Mirth) and HL7 v2 integration experience, including transformation, validation, routing, acknowledgements, error handling, interface testing, and integration with Ontario digital health standards and provincial services such as the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral. 25 Points

Requirements

Deliverables:

FHIR SubscriptionTopic definitions and supporting artifacts that document event triggers, supported filters, notification content, delivery expectations, and conformance rules for assigned Enterprise Pub/Sub workflows.
Subscription lifecycle components for creation, validation, activation, status management, renewal, deactivation, delivery configuration, heartbeat handling, event retrieval, and subscriber support.
Updated Agency applications and workflows that integrate with Enterprise Pub/Sub and replace assigned polling-based processes with FHIR subscription-driven event processing.
Production-ready Java and Node.js services, APIs, publishers, consumers, adapters, and integration components for managing subscriptions and processing FHIR events and notifications.
AWS Lambda functions and queue-based processing components for validation, enrichment, retries, dead-letter handling, idempotency, duplicate detection, reconciliation, replay, and downstream updates.
React components that use SMART on FHIR launch, authorization, context, scopes, and FHIR APIs to support the assigned subscription and application workflows.
NextGen Connect (Mirth) channels and configurations for HL7 v2 ingestion, transformation, validation, routing, acknowledgement handling, error management, and integration with FHIR and event-processing components.
FHIR profiles, examples, validation rules, event and interface mappings, contract tests, conformance tests, integration tests, end-to-end tests, and release-validation evidence.
Structured logs, metrics, alerts, dashboards, subscription health monitoring, audit records, reconciliation controls, incident diagnostics, operational procedures, and production-support runbooks.
Technical designs, API and interface specifications, workflow documentation, security and configuration notes, deployment instructions, demonstrations, release-support materials, and knowledge-transfer artifacts.

Must Haves:

Advanced FHIR Subscription and SubscriptionTopic experience, including resource triggers, filters, lifecycle and status management, notification Bundles, delivery channels, heartbeat notifications, event retrieval, validation, and conformance testing. 25 Points
Demonstrated FHIR Subscription and SubscriptionTopic implementation experience using Java, Node.js, AWS Lambda, and asynchronous queues, including topic and event design, subscription filters and lifecycle management, notification Bundle processing, idempotency, retries, dead-letter handling, duplicate-event handling, replay, observability, and production troubleshooting. 25 Points
React and SMART on FHIR experience, including launch and authorization flows, scopes, context handling, FHIR API integration, accessible user-interface development, and testing. 25 Points
NextGen Connect (Mirth) and HL7 v2 integration experience, including transformation, validation, routing, acknowledgements, error handling, interface testing, and integration with Ontario digital health standards and provincial services such as the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral. 25 Points

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More about this job

Responsibilities

The developer will design, implement, and maintain FHIR Subscription and SubscriptionTopic workflows to support clinical event-driven integrations. They will also develop and support Java, Node.js, and React applications while managing HL7 v2 message transformations and AWS-based asynchronous processing.

Requirements

Candidates must have advanced experience with FHIR Subscription models, Java, Node.js, and AWS Lambda for event-driven architectures. Proficiency in React, SMART on FHIR, and NextGen Connect (Mirth) for HL7 v2 integration within Ontario digital health standards is required.

Skills

FHIR
SubscriptionTopic
Java
Node.js
AWS Lambda
React
SMART on FHIR
NextGen Connect
Mirth
HL7 v2
REST APIs
Asynchronous queues
CloudWatch
System integration
Software development
Clinical workflows

Visa sponsorship

Not detected in the job text

Keywords

FHIR
SubscriptionTopic
Java
Node.js
AWS Lambda
React
SMART on FHIR
NextGen Connect
Mirth
HL7 v2
REST APIs
Amazon SQS
Amazon SNS
Amazon EventBridge
Amazon API Gateway
Amazon CloudWatch
Infrastructure as Code
Hospital Report Manager
Provider Registry
Client Registry
eReferral
Event-driven architecture
Idempotency
Dead-letter handling
Conformance testing
Clinical workflows
Enterprise Pub/Sub
System integration
Software development
Ontario digital health standards

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