Jobs in Canada

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Added 13 hours ago
RC
Senior Software Developer - Full Stack
Randstad Canada
Toronto, ON
- Contract
…seamless interoperability across clinical registries and health information…
Added 13 hours ago
SA
Category/Product Manager - Safety
Source Atlantic Limited
AB · Dartmouth, NS · Saint John, NB
- $90,000 to $120,000 CAD / year
…solutions, and connected solutions through the strategic use of technology and data-driven insights, to empower customers across Canada and beyond. Rooted in resilience, guided by a strong…
Added 13 hours ago
A
Manager, Total Rewards
Aplin
MB
- Full-time
Reporting to the Executive Director, Human Resources, the Manager, Total Rewards, will act as a trusted advisor to senior leadership, providing strategic human resources expertise and…
Added 13 hours ago
A
Manager, Total Rewards
Aplin
AB
- Full-time
Reporting to the Executive Director, Human Resources, the Manager, Total Rewards, will act as a trusted advisor to senior leadership, providing strategic human resources expertise and…
Added 13 hours ago
A
Manager, Total Rewards
Aplin
Regina, SK
- Full-time
Reporting to the Executive Director, Human Resources, the Manager, Total Rewards, will act as a trusted advisor to senior leadership, providing strategic human resources expertise and…
Added 13 hours ago
Implementation Manager, Customer Success
Flipp
Canada
The Customer Success Implementation Manager owns the entire journey of bringing solutions to life for clients. From the initial planning and scoping to launching, the Implementation Manager…
Added 13 hours ago
Finance Manager
Hatch
Canada
…on rest in a culture obsessed with optimization. While most technology is designed to keep you engaged, our devices use the science of habit formation to help people unplug, unwind, and…
Added 13 hours ago
RC
Electrical Engineering Specialist
Randstad Canada
Toronto, ON
- $47.63 to $57.16 CAD / hour
- Contract
Reporting to the Manager, Engineering, the incumbent provides engineering support services that help maintain the technical soundness, reliability, safety and cost-effectiveness of Toronto…
Added 13 hours ago
ML
Supervisor, Information Technology Services
Manitoba Liquor & Lotteries
Winnipeg, MB
- $91,249.6 to $123,052.8 CAD / year
- Full-time
Reporting to the Manager, the Supervisor is responsible for the oversight of day-to-day operations, coordination and planning, and the supervision of support technicians within a functional…
Added 13 hours ago
TN
Accounts Payable Specialist
Tahltan Nation Development LP
Dease Lake, BC
- $55,000 to $65,000 CAD / year
- Full-time
the Accounting Manager, you will be responsible for the timely processing of
Added 13 hours ago
S
Sr. Manager, QA Engineering & Automation
Scopely
Canada
- Full-time
Scopely is looking for a Senior QA Manager, Automation & Tooling to join our team supporting a soon-to-be-announced AAA mobile game title. This role can be remote in the US and Canada, or…
Added 13 hours ago
PA
Manager, Solutions Consulting
Palo Alto Networks (Canada) Inc.
Calgary, AB · Vancouver, BC
- Full-time
…innovation and impact, solving real-world problems with cutting-edge technology and bold thinking. Here, everyone has a voice, and every idea counts. If you’re ready to do the most…
Added 13 hours ago
AirCover Specialist, Claims Experience
Airbnb
Canada
While the position is Remote Eligible, you must live in a province where Airbnb Canada, Inc
Added 13 hours ago
LO
Bilingual Collections Associate - Temp to Perm - Hybrid
Lifeline of Canada
Toronto, ON
- Temporary
…AutoAlert, the most widely adopted automatic fall detection technology on the market today and an excellent choice for those with a history, risk, or fear of falling. Our commitment to…
Added 13 hours ago
Seed Science Operations Agronomy Manager
BASF SE
Saskatoon, SK
We are looking for a Seed Science Operations Agronomy Manager to join our Agricultural Solutions team in Saskatoon, SK. In this role, you will provide leadership and operational support for…
Added 13 hours ago
Manager - Technology Strategy-24 Month Secondment, Deloitte Global E&A
Deloitte
Toronto, ON
As a Manager, you'll work closely with senior leaders to drive various strategic initiatives around enterprise platform strategy, agentic AI system design, AI governance, enterprise data…
Added 13 hours ago
C1
Senior Product Delivery Analyst
Company 19 - John Hancock Life Insurance Company (U.S.A.)
Toronto, ON
- Full-time
…intersection of investment accounting, financial instruments, technology, and product delivery, helping deliver solutions that support critical accounting, reporting, reconciliation, and…
Added 13 hours ago
S
Legal Content Technician
SOVRA
Canada
- Full-time
…across North America. Our work sits at the intersection of technology, public service, and accountability, helping governments operate more efficiently and transparently on behalf of the…
Added 13 hours ago
AW
Privacy Operations Specialist
Aviso Wealth
Toronto, ON · Vancouver, BC
- $100,000 to $110,000 CAD / year
- Full-time
Added 13 hours ago
RQ00832 - Privacy Impact Assessment Specialist - Senior
Flexstaf IT
Toronto, ON
Public Sector Experience: must have
Added 13 hours ago
IG
Activation & Go Live Manager
Insight Global
Thunder Bay, ON
- From $80 CAD / hour
- Contract
Significant experience in project or program management within a complex healthcare, clinical, information technology or enterprise environment.
Added 13 hours ago
EL
Deal Strategy and Enablement-Senior Manager
Equinix LLC
Toronto, ON
- Full-time
- Hybrid
The Manager, Deal Strategy & Enablement – Strategics is a part of global DSE Strategics team, aligned to a defined set of AMER-HQ-ed accounts. Your portfolio is Equinix's most significant…
Added 13 hours ago
GC
Manager, Accounting
Golf Canada
Caledon, ON
- Full-time
…Canada’s mission is to be a world leader in golf. For more information about what Golf Canada is doing to support golf in your community, visit…
Added 13 hours ago
Manager, IT Business Solutions
The Town of East Gwillimbury
Sharon, ON
Reporting to the Director of Information Technology, the Manager of IT Business Solutions provides leadership for the development, implementation and delivery of business applications,…
Added 13 hours ago
OV
Housekeeper
Ocean View Continuing Care Centre
Eastern Passage, NS
- $20.48 CAD / hour
technology, optimized scheduling, and plans for a new facility, we are

Randstad Canada

Senior Software Developer - Full Stack

Toronto, ON, Canada

Contract

Apply on randstad.ca About employer

Applications open in a new tab.

Job details

Job type: Contract
Apply by: Dec 26, 2026
Posting language: English
Posted: Oct 28, 2026

Original job description

We are seeking an experienced Senior Software Developer - Full Stack to lead the architecture, design, implementation, and integration of event-driven digital health applications. In this role, you will modernize application workflows by replacing legacy polling mechanisms with real-time, subscription-driven event architectures using FHIR Subscription and SubscriptionTopic models. Leveraging expertise across Java, Node.js, AWS serverless technologies, React, SMART on FHIR, and NextGen Connect (Mirth), you will build resilient asynchronous pipelines, develop accessible front-end interfaces, handle complex HL7 v2 and FHIR transformations, and ensure seamless interoperability across clinical registries and health information services.

Location: Toronto, ON (Onsite as-needed basis)

Duration: 4-month contract.

Advantages
Advanced FHIR Specialization: Direct hands-on implementation of cutting-edge FHIR Subscription and SubscriptionTopic event-driven architectures.

Modern Cloud & Serverless Stack: Build scalable event pipelines using AWS Lambda, asynchronous messaging, Java, and Node.js.

Clinical UI & Interoperability: Develop modern React applications leveraging SMART on FHIR workflows alongside NextGen Connect (Mirth) HL7 integrations.

Flexible Onsite Arrangement: Collaborative onsite schedule in Toronto on an as-needed basis.

Responsibilities
Assess legacy polling-based integrations and workflows to map clinical events and triggers to FHIR SubscriptionTopic and Subscription specifications.

Define, configure, validate, and maintain SubscriptionTopic and Subscription resources, managing filters, notification Bundles, lifecycle states, delivery channels, and heartbeat notifications.

Design, build, test, and maintain production-ready Java and Node.js microservices, REST APIs, publishers, consumers, and data adapters.

Develop serverless functions using AWS Lambda and asynchronous message queues to handle event processing, payload validation, enrichment, and workflow orchestration.

Implement robust distributed processing patterns, including idempotency, retries, dead-letter queues, deduplication, event replay, and automated reconciliation.

Build, test, and optimize accessible React user interfaces that implement SMART on FHIR launch flows, OAuth 2.0 authorization, scopes, and context handling.

Configure, test, and support NextGen Connect (Mirth) integration channels to receive, transform, validate, route, and acknowledge HL7 v2 messages and map them to FHIR resources.

Implement structured logging, correlation IDs, metrics, alerts, and operational dashboards to trace event delivery across publishers, message buses, and consumers.

Maintain rigorous test suites encompassing unit, integration, contract, conformance, and end-to-end regression testing for all event-driven workflows.

Ensure all technical designs, interfaces, and code adhere strictly to privacy guidelines, secure configuration standards, and personal health information safeguards.

Qualifications
Public Sector Digital Health Experience: Mandatory, proven software development experience within a public sector or provincial digital health environment (Strictly Required).

FHIR Subscription & SubscriptionTopic: Advanced experience with FHIR Subscription and SubscriptionTopic mechanisms, including resource triggers, filter criteria, lifecycle management, notification Bundles, delivery channels, heartbeat notifications, validation, and conformance testing (Strictly Required).

Event-Driven Backend & AWS Serverless: Proven hands-on development experience implementing FHIR event workflows using Java, Node.js, AWS Lambda, and asynchronous message queues, with demonstrated mastery of idempotency, retries, dead-letter handling, deduplication, and production troubleshooting (Strictly Required).

React & SMART on FHIR: Demonstrated experience building production React applications utilizing SMART on FHIR launch and authorization flows, scopes, context handling, FHIR API integration, and accessible interface design (Strictly Required).

NextGen Connect (Mirth) & HL7 v2: Strong hands-on experience configuring NextGen Connect (Mirth) channels for HL7 v2 message transformation, validation, routing, acknowledgements, and integration with provincial digital health standards and registries (e.g., Hospital Report Manager, Provider Registry, Client Registry, eReferral) (Strictly Required).

Nice-to-Have Assets:
Hands-on experience implementing the FHIR R5 Subscription framework or the R5 backport specification.

Direct experience with AWS messaging and observability tooling (e.g., Amazon SQS, SNS, EventBridge, API Gateway, CloudWatch).

Experience authoring versioned FHIR profiles, implementation guides, and API contract tests.

Summary
If you're interested in the "Senior Software Developer - Full Stack" role based in Toronto, we encourage you to apply online at www.randstad.ca.

Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.

Apply on randstad.ca About employer

More about this job

Responsibilities

The Senior Software Developer will modernize legacy polling integrations into FHIR subscription-driven event pipelines. They will build Java and Node.js microservices, React interfaces with SMART on FHIR launch flows, and Mirth HL7 v2 to FHIR integrations.

Requirements

Candidates need proven public sector or provincial digital health development experience. They also need advanced FHIR Subscription and SubscriptionTopic experience, AWS serverless event processing, React with SMART on FHIR, and NextGen Connect (Mirth) with HL7 v2.

Skills

FHIR Subscription
FHIR SubscriptionTopic
SMART on FHIR
HL7 v2
NextGen Connect (Mirth)
Java
Node.js
AWS Lambda
AWS serverless
React
OAuth 2.0
REST APIs
Amazon SQS
Amazon SNS
Amazon EventBridge
API Gateway
CloudWatch
Event-driven architecture
Idempotency
Dead-letter queues
Microservices
Contract testing
Conformance testing
Unit testing
Integration testing

Keywords

Senior Software Developer
Full Stack Developer
FHIR
FHIR Subscription
SubscriptionTopic
SMART on FHIR
HL7 v2
NextGen Connect
Mirth
Java
Node.js
AWS Lambda
React
OAuth 2.0
event-driven architecture
digital health
interoperability
contract developer
Toronto

Seniority

Senior

Tools

FHIR Subscription
SubscriptionTopic
NextGen Connect (Mirth)
AWS Lambda
Amazon SQS
Amazon SNS
Amazon EventBridge
API Gateway
CloudWatch
React

Languages

English

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Work requirements

Jobs in Canada