Jobs in Canada

Group jobs by employerEmail me new jobs Save this search

Added 1 day ago
Sales & Marketing - Sales Manager
Beyond Energy Services & Technology
Calgary, AB
…production companies, and key industry decision-makers. The Sales Manager will provide hands-on leadership through customer engagement, contract negotiations, strategic account management,…
Added 1 day ago
RC
Senior Software Developer - Full Stack
Randstad Canada
Toronto, ON
- Contract
Public Sector Digital Health Experience: Mandatory, proven software development experience within a public sector or provincial digital health environment (Strictly Required).
Added 1 day ago
TC
Project Manager
Thales Canada Inc., Defence and Security
Ottawa, ON
- Full-time
- Hybrid
Thales has a vacancy for a Project Manager (PM) who will be responsible for the delivery of the assigned project, its business rhythm and all associated governance aspects in order to…
Added 1 day ago
DB
Process Engineer / Improver
Default Brand
Collingwood, ON
- Full-time
Provide real-time technical support for process issues; lead root cause analysis and implement sustainable corrective actions.
Added 1 day ago
SS
Field Case Manager
SDM SHN Inc.
Mississauga, ON
- Full-time
The Neurology Nurse Field Case Manager (FCM) is responsible for a collaborative process of ongoing assessment, planning, facilitation, service coordination, evaluation, and advocacy to meet…
Added 1 day ago
LO
Maintenance Planner (Full-time Permanent)
Lake of the Woods District Hospital
Kenora, ON
- Full-time
- On-site
…would be a great fit. LWDH is dedicated to ongoing professional development and continuing education opportunities to enhance skillsets and working…
Added 1 day 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 1 day ago
GE
Kingston - Senior Structural Engineer
GERRITS ENGINEERING LIMITED
Kingston, ON
- $110,000 to $130,000 CAD / year
- Full-time
Act as Project Manager on single-discipline projects, keeping them on time and on budget
Added 1 day ago
GE
Kingston - Intermediate Structural Engineer
GERRITS ENGINEERING LIMITED
Kingston, ON
- $75,000 to $110,000 CAD / year
- Full-time
Act as Project Manager on single-discipline projects, keeping them on time and on budget
Added 1 day 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 1 day 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 1 day ago
LN
On Reserve Lands Manager
Lilwat Nation
Mount Currie, BC
- $75,560 to $105,270 CAD / year
- Full-time
Provides technical and administrative support on community development projects and negotiations relating to reserve lands.
Added 1 day 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 1 day ago
S
Sr. Manager, QA Engineering & Automation
Scopely
Canada
- Full-time
Provide hands-on technical leadership through framework design, prototypes, code reviews, automation implementation, and test-script development.
Added 1 day ago
A
IT Auditor
Altis
Ottawa, ON
- Full-time
Continuous learning, professional development and opportunities to mentor others.
Added 1 day ago
TC
Intake Specialist
The Career Foundation
Toronto, ON
- $57,000 to $58,000 CAD / year
The position will also permit a hybrid schedule, allowing for one work from home day per week
Added 1 day ago
HB
Technical Advisor (Engineering)
H2R Business Solutions
Brantford, ON
- Full-time
This is a customer-facing role that combines technical sales, account management, and project engineering. Reporting to the Business Development Manager, you'll be the technical point of…
Added 1 day ago
PA
Manager, Solutions Consulting
Palo Alto Networks (Canada) Inc.
Calgary, AB · Vancouver, BC
- Full-time
As our Solutions Consultant Manager, you are the technical leader for your District Solutions Consulting team. You will work closely with the District Sales Manager and, along with your…
Added 1 day ago
RI
Manager NAV Production
RBC Investor Services Trust
Toronto, ON
- Full-time
Good technical knowledge of calculating Net Asset Value
Added 1 day ago
GO
Analyst, Treasury Operations, Banking and Liquidity
Government of Saskatchewan
Regina, SK
- On-site
Reporting to the Manager, Treasury Operations, Banking and Liquidity, the analyst will:
Added 1 day ago
FH
Senior indigenous cultural advisor
Fraser Health Authority
Maple Ridge, BC
- $35.36 to $50.83 CAD / hour
In collaboration with designated program/service team and Aboriginal Health Manager, informs and influences policy development efforts to embed cultural safety within existing practice,…
Added 1 day ago
FH
Registered nurse, medicine
Fraser Health Authority
Delta, BC
- $41.42 to $59.52 CAD / hour
Participates on nursing committees, care conferences and councils as assigned or as agreed to with the Manager.
Added 1 day ago
FH
Coordinator, housekeeping services
Fraser Health Authority
Chilliwack, BC
- $35.36 to $50.83 CAD / hour
…ATP, UV marker, hand hygiene, etc. Analyzes audit data with Manager and assists with the development and follow-up actions as…
Added 1 day ago
FH
Coordinator, housekeeping services
Fraser Health Authority
Maple Ridge, BC
- $35.36 to $50.83 CAD / hour
…ATP, UV marker, hand hygiene, etc. Analyzes audit data with Manager and assists with the development and follow-up actions as…
Added 1 day ago
FH
Coordinator, housekeeping services
Fraser Health Authority
Coquitlam, BC
- $35.36 to $50.83 CAD / hour
…ATP, UV marker, hand hygiene, etc. Analyzes audit data with Manager and assists with the development and follow-up actions as…

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

Report this job

Work requirements

Jobs in Canada