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Added 3 mins ago
R
Senior Manager, Corporate Solutions – Human Resources, Legal Services, and Service Center Solutions Portfolios (T & I) (Telework/Hybrid)
Radio-Canada
Montreal, QC
- Full-time
Reporting to the Senior Director, Corporate Solutions, you will be able to leverage your experience in product management, as you will be responsible for supporting our business partners in…
Added 3 mins ago
R
Oracle Exadata Cloud@Customer (ExaCC) Senior DBA Consultant
Raise
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- Full-time
ExaCC Platform Implementation & Delivery: Lead the end-to-end setup and provisioning of ExaCC environments, including OCI tenancy administration, IAM policy creation, compartment…
Added 3 mins ago
C
Senior Manager, Corporate Solutions – Human Resources, Legal Services, and Service Center Solutions Portfolios (T & I) (Telework/Hybrid)
CBC/Radio-Canada
Ottawa, ON · Montreal, QC
- Full-time
Reporting to the Senior Director, Corporate Solutions, you will be able to leverage your experience in product management, as you will be responsible for supporting our business partners in…
Added 3 mins ago
T
Data Associate - Data Requirements & Quality
TD
Toronto, ON · Montreal, QC
- Full-time
…to develop complete business solutions under the guidance of senior peers and managers, including data models (entity relationship diagrams, dimensional data models), ETL and business…
Added 32 mins ago
TG
Cash Management Officer - Tax Intern
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- $22 to $25 CAD / hour
- Full-time
This role reports to: Senior Manager, Cash Management
Added 32 mins ago
Senior Relationship Manager
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SAP SuccessFactors Recruiting Lead - Manager
EY
Edmonton, AB · AB · Winnipeg, MB · Dieppe, NB · Saint John, NB · St. John's, NL · Halifax, NS · London, ON · Ottawa, ON · Toronto, ON · ON · Saskatoon, SK · Waterloo, ON · Calgary, AB
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Added 47 mins ago
CC
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- Part-time
We are looking for a Senior Accountant, Real Estate to join Connor, Clark & Lunn Financial Group’s Toronto-based real estate accounting team, working exclusively for our affiliate,…
Added 47 mins ago
Specialist, Digital Account Manager
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Ensures that client issues are dealt with in an efficient manner, informing the Account Executive and Senior Manager of any problems that may arise.
Added 47 mins ago
Corporate Traveller - Senior Productivity Manager - Vancouver, BC
Flight Centre
BC
Are you passionate about driving operational excellence and making a real impact on team productivity? As a Senior Operational Productivity Manager with FCTG Americas, you'll play a…
Added 47 mins ago
N
Account Executive
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Toronto, ON
- Full-time
…and Engineering teams to coordinate campaign execution, meet client objectives, and ensure successful delivery of advertising…
Added 1 hour ago
TF
Senior Manager
the Finance Group
Ottawa, ON
- $130,000 to $150,000 CAD / year
- Full-time
the Finance Group (tFG) is recruiting an experienced Senior Manager – Public Accounting on behalf of our client, an established public accounting firm in Ottawa, Ontario.
Added 1 hour ago
M
Senior Manager Delivery - Electrification Team (Development and Design)
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Toronto, ON
- Full-time
Within our consult business we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project.
Added 1 hour ago
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Senior Manager Delivery - Electrification Team (Construction)
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- Full-time
Within our consult business we harness our unique combination of leading-edge practical expertise and project delivery consultancy to unlock the potential in every project.
Added 1 hour ago
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Access Project Manager - Electrification Team
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Toronto, ON
- Full-time
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Added 1 hour ago
Manager - Treasury - FAAS - Assurance
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Toronto, ON
…insights our clients can rely on, every time. As a Treasury Manager you’ll play a leading role in that goal, driving growth and managing delivery teams using your treasury process…
Added 1 hour ago
Senior Consultant - FAAS - Treasury - Assurance
EY
Toronto, ON
…insights our clients can rely on, every time. As a Treasury Senior Consultant you’ll play a leading role in that goal, driving growth and managing delivery teams using your treasury process…
Added 1 hour ago
ID
Account Manager - Vice President (VP)
Intellect Design Arena Ltd
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- $160,000 to $190,000 CAD / year
- Full-time
Technology & AI Engagement: Act as a technology-aware ambassador - engaging senior client leaders and CIOs on enterprise software transformation, composable architectures, microservices,…
Added 1 hour ago
FI
Senior Full Stack Software Developer (FHIR)
Flexstaf I.T. Inc.
Toronto, ON · Greater Toronto Area, Canada
- Contract
…standards and provincial services such as the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and…
Added 1 hour ago
QM
Senior Project Manager - Technology & Systems Implementation
Quantum Management Services Ltd.
Toronto, ON
- $85,000 to $100,000 CAD / year
- Full-time
Our client, an established organization specializing in technology and integrated parking solutions, is seeking an experienced and hands-on Senior Project Manager to join their growing team…
Added 1 hour ago
HH
Project Manager
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- Full-time
The Project Manager is responsible for overseeing the execution of creative projects within a fast-paced agency environment. This role ensures that creative deliverables - including design…
Added 2 hours ago
RD
Technical Project Manager
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Toronto, ON · Greater Toronto Area, Canada
- Full-time
We are seeking an adaptable, results-oriented Project Manager to lead and support high-impact, multi-year enterprise automation initiatives. In this role, you will bridge the gap between…
Added 2 hours ago
VS
Senior Software Developer
vTech Solution Canada
Toronto, ON
- Contract
…standards and provincial services, including the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral, covering message transformation, validation,…
Added 2 hours ago
QT
Building Science Lead
QEA Tech
Toronto, ON · Greater Toronto Area, Canada
- Full-time
…the same time, they will remain actively involved in project delivery, including complex building envelope investigations, energy modelling, retrofit planning, technical analysis, and…
Added 2 hours ago
MI
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Business project management, senior and versatile profile (client note)

vTech Solution Canada

Senior Software Developer

Toronto, ON, Canada

Contract

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Job details

Job type: Contract
Apply by: Nov 29, 2026
Posting language: English
Posted: Oct 30, 2026

Original job description

Job Title: Sr. Software Developer - Full Stack

Location: Toronto, ON

Work Mode: Hybrid (Onsite as needed basis)

Duration: 6 months contract

Description:

The Agency requires 2 Senior Full Stack Developers to support the Enterprise Pub/Sub Applications Team. The resources will update The Agency applications and associated workflows to integrate with the Agency Enterprise Pub/Sub service, which is based heavily on FHIR Subscription and SubscriptionTopic. The work will replace scheduled polling with subscription-driven event processing where appropriate so applications can respond when clinical information, referrals, reports, status changes, or other relevant events become available. The roles spans FHIR event architecture, backend, serverless integration, interface, and user-interface development. The resource will define and implement FHIR Subscription and SubscriptionTopic behaviour; build Java and Node.js services, AWS Lambda functions, and queue-based event-processing components; develop React applications that use SMART on FHIR; and configure NextGen Connect (Mirth) channels for HL7 v2 workflows. The work includes subscription lifecycle management, filtering, notification handling, application and workflow changes, testing, monitoring, and transition of existing polling processes.

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

Total: 100 Points

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More about this job

Responsibilities

Design and implement FHIR Subscription and SubscriptionTopic workflows, Java and Node.js services, AWS Lambda and queue-based event processing, React applications using SMART on FHIR, and HL7 v2 integrations through NextGen Connect. Test, monitor, secure, and support these integrations, including reliable event handling, clinical workflow updates, operational documentation, and transition from polling-based processes.

Requirements

Requires advanced hands-on experience with FHIR Subscription and SubscriptionTopic, Java and Node.js development, AWS Lambda and asynchronous event processing, and production React applications using SMART on FHIR. Also requires NextGen Connect (Mirth), HL7 v2, and Ontario digital health integration experience, including HRM, Provider Registry, Client Registry, and eReferral.

Skills

FHIR Subscriptions
FHIR SubscriptionTopic
Java
Node.js
AWS Lambda
Asynchronous Queues
React
SMART on FHIR
HL7 v2
NextGen Connect (Mirth)
REST APIs
Event-Driven Architecture
AWS Messaging Services
FHIR Integration
Ontario Digital Health Standards
Automated Testing

Visa sponsorship

Not detected in the job text

Keywords

FHIR
FHIR Subscription
SubscriptionTopic
FHIR R5
Java
Node.js
React
SMART on FHIR
AWS Lambda
Amazon SQS
Amazon SNS
Amazon EventBridge
Amazon API Gateway
Amazon CloudWatch
HL7 v2
NextGen Connect
Mirth
REST APIs
Notification Bundles
Event-Driven Architecture
Asynchronous Queues
Idempotency
Dead-Letter Handling
Hospital Report Manager
Provider Registry
Client Registry
eReferral
Ontario Digital Health Standards
Personal Health Information
Infrastructure as Code

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