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Added 2 days ago
A
Co-Op Student - SIS Performance and Analytics
AltaLink
Calgary, AB
- Other
Reporting to the Director, S&IS Business Office, this role will assist the team in providing support to the Security & Information Services group, and its internal business partners. The…
Added 2 days ago
Account Executive, National Sales
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AP
Test Analyst
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Canada
- Full-time
Bachelor’s degree in Computer Science, Information Technology, Software Engineering, or a related field is preferred.
Added 2 days ago
R&
Project Manager – Finance Transformation
Robertson & Company Ltd.
Toronto, ON
- Contract
Bachelor's degree in Business, Finance, Accounting, Information Technology, or a related discipline.
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W
Junior Data Analys
Workpal.id
Canada
- Full-time
We are seeking a detail-oriented and analytical Junior Data Analyst to support data collection, reporting, and business intelligence initiatives. This role is ideal for recent graduates or…
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NP
Manager, Finance Systems & Data Governance
Neo Performance Materials
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- $110,000 to $130,000 CAD / year
- Full-time
Neo is seeking a hands-on Finance systems professional to support a major systems implementation and develop a lasting data-governance capability. The immediate priority is OneStream:…
Added 2 days ago
CH
Manager, Health Networks
Children's Healthcare Canada
Ottawa, ON
- Full-time
Provide basic user support and orientation to members, troubleshoot routine issues and coordinate with technology providers or internal colleagues when required.
Added 2 days ago
FI
Senior Full Stack Software Developer (FHIR)
Flexstaf I.T. Inc.
Toronto, ON · Greater Toronto Area, Canada
- Contract
…standards and provincial services, including the Hospital Report Manager (HRM) Standard, Provider Registry, Client Registry, and eReferral, covering message transformation, validation,…
Added 2 days ago
BS
Sales Development Representative
Blackline Safety
Calgary, AB
- Full-time
Our team at Blackline Safety is growing! As a people-driven technology company, with a mission to make sure every worker returns home safely, we drive innovation, practice resiliency,…
Added 2 days ago
Procurement Specialist
City of Mississauga
Mississauga, ON
Public procurement experience in Information Technology (IT) is required.
Added 2 days ago
Technical Account Manager
Axon
Ottawa, ON
The Technical Account Manager will serve as a trusted advisor and primary technical partner for Axon’s key customer(s), helping build a strong, long-term strategic relationship. As the main…
Added 2 days ago
Delivery Manager – Personalization and Marketing (7 months contract)
Sobeys Capital Incorporated or a Franchise/Affiliate / ou une franchise/société affiliée
Toronto, ON
As a Delivery Manager in Personalization and Marketing, you will lead the end-to-end delivery of multiple Advanced Analytics and AI/ML initiatives, overseeing planning, execution,…
Added 2 days ago
Senior Technology Specialist, Core Systems Developer
Equitable
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…to our core systems while working closely with business and technology colleagues who collaborate with…
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UO
Undergraduate Academic Student Advisor
University of Alberta
Edmonton, AB
- Full-time
Reporting to the Manager, Student Services, the Student Services Advisors provide superior student services to undergraduate Engineering students. Specific responsibilities are to…
Added 2 days ago
RD
Technical Project Manager
Randstad Digital
Toronto, ON · Greater Toronto Area, Canada
- Full-time
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Added 2 days ago
VS
Senior Software Developer
vTech Solution Canada
Toronto, ON
- Contract
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…
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AI
Snowflake Admin
Avanciers Inc.
Markham, ON
- Full-time
Working knowledge of AWS data services such as S3, IAM, Glue, Lambda, KMS, Secrets Manager, EventBridge, SNS, SQS, RDS, and PrivateLink.
Added 2 days ago
P
Maintenance Coordinator
Penske
Boucherville, QC
- Full-time
Support the branch financial manager by providing guidance and information that contributes to branch performance and profitability.
Added 2 days ago
T
Software Engineer II - Angular UI
TD
Toronto, ON
- Full-time
Develop new features and perform unit / component test for new application development initiatives aligned to business needs and in accordance with technology architecture standards
Added 2 days ago
Assistant Branch Manager
Money Mart
Toronto, ON
…or through our mobile app, we focus on delivering practical support, clear information, and service that helps people and business owners move forward with…
Added 2 days ago
M
Digital Product Owner
Manulife
Waterloo, ON · Montreal, QC
- Full-time
Foundational experience working with technical teams to support the translation of business needs into clear user stories and or requirements. Demonstrates the ability to bridge…
Added 2 days ago
Quality Assurance Manager (Traveling)
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Toronto, ON · ON-Toronto, AB
The Traveling Quality Manager is responsible for supporting all on-site quality systems and related processes to ensure that all quality standards of the company are followed and…
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Network Administration Technician
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Incentives and Capital Investments - SRED Finance - Manager - Toronto
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Added 2 days ago
JE
Technology Manager
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ON
- Full-time
Just Eat Takeaway is seeking a Technology Manager to lead and grow the Delivery as a Service team (DaaS) within our Logistics Pillar (Logistics Services).

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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