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Added 9 mins ago
H
Commercial Channel Partner Business Manager
HP
Mississauga, ON
- Full-time
The Partner Business Manager is responsible for managing relationships with Tier-2 resellers, staying updated on market insights, and driving business growth through data-driven insights.…
Added 9 mins ago
Acting Store Manager II Mayfair Shopping Centre
EssilorLuxottica Group
Victoria, BC
Total Rewards: Benefits/Incentive Information
Added 9 mins ago
D
Customer Care Representative
Dynacare
Brampton, ON
- Full-time
…your career in any direction you choose. We’re evolving our technology and optimizing our processes, so you can do your best work, make a meaningful impact, and…
Added 9 mins ago
D
Customer Care Representative
Dynacare
Brampton, ON
- Full-time
…your career in any direction you choose. We’re evolving our technology and optimizing our processes, so you can do your best work, make a meaningful impact, and…
Added 9 mins ago
Process Equipment Support Manager
BWXT
Ottawa, ON
BWXT Medical is hiring an Process Equipment Support Manager at our production facility in Kanata, ON.
Added 9 mins ago
QP
Property Accountant
QuadReal Property Group
Toronto, ON
- Full-time
Reporting directly to the Accounting Manager, the Property Accountant is responsible for adding value to QuadReal by providing meaningful financial information that is professional,…
Added 9 mins ago
Clinical Therapist, Intensive Outreach Services
Nova Scotia Health and IWK Health
Halifax, NS
…in collaborative person-centered care, and utilize available information technology to support best…
Added 9 mins ago
Course Author - Nuclear Training
Aecon
Cambridge, ON · Oshawa, ON · Pickering, ON
Reporting to the Training Manager, the Course Author develops and revises training materials under the direction of an Instructional Designer, Instructional Technologist, or training…
Added 10 mins ago
WU
Senior Systems Analyst (PeopleSoft HCM)
Western University
London, ON
- Full-time
…and benefits processing, the deployment of new employee and manager functionality, and system upgrades - ensuring solutions are aligned with HR strategy, institutional priorities, and…
Added 10 mins ago
NS
2627-214 - Assistant Facilities Manager (CL3), Cumberland Campus
Nova Scotia Community College - NSCC
Springhill, NS
- Full-time
Reporting to the Facilities Manager, you will provide support in overseeing the day-to-day operations of Cumberland Campus. Responsibilities include managing building operations,…
Added 25 mins ago
MI
Senior Associate Director, Debt Services
MUFG Investor Services
Toronto, ON
- $93,750 to $137,500 CAD / year
- Full-time
…service level agreements are met and quality is maintained. As a manager of people, this person has to be an effective leader and team builder to help foster healthy culture and staff…
Added 25 mins ago
S
Program Manager - Capital Markets (FSI)
Sia
Toronto, ON
- Full-time
Sia Partners is seeking a high-performing Program Manager - Capital Markets Transformation to support complex regulatory and strategic transformation initiatives within the Financial…
Added 25 mins ago
A
Recruiting Analyst
Accenture
St. Catharines, ON · Toronto, ON
- Full-time
…recruiters, business leaders, and candidates to deliver a seamless, technology-enabled recruiting…
Added 25 mins ago
AG
Product Manager - OPS - Complete onsite - RQ11741 - Ontario Public Service Experience
Arthur Grand Technologies Inc
Toronto, ON
- Contract
Arthur Grand Technologies (www.arthurgrand.com) is in the business of providing staffing and technology consulting services. We have doubled our revenue year over year for the past 5 years.…
Added 40 mins ago
S
Program Manager - Capital Markets (FSI)
Sia
Toronto, ON
- Full-time
Sia Partners is seeking a high-performing Program Manager - Capital Markets Transformation to support complex regulatory and strategic transformation initiatives within the Financial…
Added 40 mins ago
EB
Manager, Third Party Risk
EQ Bank
Toronto, ON
- Full-time
The Manager, Third Party Risk role supports the advancement of risk management practices related to third party risk and the interconnections to change management, operational resiliency,…
Added 40 mins ago
M
Manager, Payments Data Governance
Metrolinx
Toronto, ON
- Full-time
Metrolinx's Innovation and Information Technology group supports female team members via "Go Tech Women" an affinity group for women in Information Technology, led by our Chief Information…
Added 40 mins ago
L
Responsable principal(e), Opérations & Intégration des TI // IT Operations & Integration Lead
LiveBarn
Montreal, QC
- Full-time
Coordination transversale : Assurer le lien et le suivi rigoureux avec le CAO, les RH, les Finances, la Sécurité de l'information et l'équipe DevOps/SysOps.
Added 40 mins ago
BI Analyst
PACT
ON · Mississauga, Ontario
…capacity, licensing and workspace governance are set by the Manager, Data & Innovation; the BI Analyst builds to those standards and raises…
Added 54 mins ago
CO
Job ID #32326: Project Manager, Hamilton Water Facilities
City of Hamilton
Hamilton, ON
- Full-time
- Temporary
Maintain professional competence in the discipline of information technology, facility design and maintenance and project management.
Added 55 mins ago
B
Senior Business Analyst, Loan Servicing Technology
BMO
Toronto, ON · FCP
- Full-time
…BMO, you will play a critical role in bridging business needs, technology solutions, and emerging Artificial Intelligence (AI) capabilities. Working closely with business stakeholders,…
Added 55 mins ago
J
Manager of UX Research
Jobgether
Canada
- $112,000 to $160,000 CAD / year
- Full-time
As Manager of UX Research, you will shape how users’ needs, behaviors, and experiences inform product strategy across a complex B2B SaaS platform. Combining hands-on qualitative and…
Added 55 mins ago
Senior Software Developer
Range Group - Job Postings
Toronto, ON
You're comfortable using AI coding tools but not dependent on them, and you understand what can't be shared with them: no production data, customer information, or secrets.
Added 1 hour ago
T
Operations Manager (Civil/FTTH Construction)
Telecon
Saskatoon, SK
- Full-time
Reporting to the Senior Director of Operations; the Operations Manager is responsible to lead and manage all operations of their region. This includes health and safety, finances, contract…
Added 1 hour ago
WO
Controller
WP Osborne Executive Search Inc.
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…Investments teams, providing insightful financial and operational information to support informed decision-making and optimize property performance and investor returns. As part of the…

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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