Jobs in Canada

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Added 10 hours ago
Cloud Controls Engineer
Astra North Infoteck Inc.
Montréal, QC
…scale across Microsoft Azure, AWS, and GCP. We are seeking a Senior Cloud Controls Engineer to contribute to cloud security research, Wiz run-time implementation engineering and cloud risk…
Added 11 hours ago
Senior Site Reliability Engineer
Cvent
Fredericton, NB
…databases from Azure to AWS while keeping live traffic healthy. Senior SREs aren't bystanders to the cutover - you help design the validation gates, own rollback readiness, and know when to…
Added 13 hours ago
Principal GTM Operations Analyst
MongoDB
AB · BC · MB · NS · ON · QC
Act as the senior analytical thought partner to GTM leadership, shaping which questions the team takes on, not just how it answers them
Added 16 hours ago
Senior Platform Engineer
ThoughtExchange
Canada
Join a team where innovation and cutting-edge technology are at the forefront. As a Senior Platform Engineer, you’ll play a pivotal role in scaling cloud operations and enhancing the…
Added 16 hours ago
C
Senior/Staff Software Engineer, Developer Experience
Cohere
Ottawa, ON · Toronto, ON · Montréal, QC
- $215,000 to $300,000 USD / year
We're seeking a Senior/Staff Engineer to build and maintain the automation infrastructure that powers the development cycles of our North platform. This engineer will design and implement…
Added 1 day ago
Identity & Authentication Management Engineer
BoehringerPRD
Canada
Join our Cyber Security - Identity & Authentication Management (IAM) Operations team as a Senior Systems Engineer – Authentication Operations. In this role, you will operate, secure, and…
Added 1 day ago
PL
Power System Study Engineer
Powertech Labs
BC
- $109,680 to $138,720 CAD / year
…planners. Candidates will be assessed and hired at the EIT, Engineer 2, Senior or Specialist Engineer level depending on qualifications and relevant modeling and study experience. The…
Added 1 day ago
Senior Data Engineer
Royal Bank of Canada
Toronto, ON
We are seeking a Data Engineer to build and maintain scalable data pipelines supporting enterprise analytics and reporting. The role will focus on developing ETL/ELT pipelines using…
Added 1 day ago
Directeur·trice de l'architecture logicielle | Head of Software Architecture
Power Factors
Montréal, QC
Encadrer les ingénieur·e·s senior·e·s et les responsables en ingénierie en matière de jugement architectural, de conception de systèmes et d’analyse des compromis techniques
Added 2 days ago
Senior Software Development Engineer in Test
Episode Six US
Toronto, ON
We are a growing fintech organization looking to add a Senior Software Development Engineer in Test!
Added 2 days ago
Intermediate Automation Developer
Randstad Canada
Toronto, ON
If you're interested in the "Senior Automation & Performance Test Engineer" role based in Toronto, we encourage you to apply online at www.randstad.ca.
Added 2 days ago
C
MES Lead Engineer- GE Proficy
Capgemini
Calgary, AB
- $70,751 to $165,984 CAD / year
Experienced Senior MES Production Execution Engineer to lead the implementation, support, and optimization of Manufacturing Execution System (MES) solutions across manufacturing sites. The…
Added 2 days ago
Senior Full Stack Engineer
hireVouch
Toronto, ON
We're looking for a Senior Full Stack Engineer to own the product surface of our end to end: our web app (Next.js), our mobile app (Expo / React Native), and the TypeScript…
Added 3 days ago
Senior Hydraulic Modeling Engineer
Carollo Engineers, Inc
Burnaby, BC
Lead field test planning for model calibration and validation
Added 3 days ago
Senior Data Engineer
CarePartners
Waterloo, ON · London, ON
The Senior Data Engineer is responsible for the design, governance, and ongoing evolution of the organization's enterprise data environment. This role provides leadership in data…
Added 3 days ago
Azure Integration Engineer - Technical Lead
Randstad Canada
Remote, Canada
Our team is seeking a Senior Azure Integration Engineer / Technical Lead to take technical ownership of an existing Azure-based middleware ecosystem supporting a corporate Treasury…
Added 4 days ago
H
Android & Linux Software Engineer
HP
Vancouver, BC
- $86,350 to $114,000 CAD / year
…Android, from implementation through unit testing, working with senior engineers on design. These solutions must perform reliably in demanding customer environments, including highly…
Added 4 days ago
Senior QA Automation Engineer - Enterprise Platforms & AI (PL4242)
Paralucent
Toronto, ON
Paralucent is seeking a Senior QA Automation Engineer to lead quality engineering for a complex enterprise workflow and case-management platform. You will build the automation strategy and…
Added 4 days ago
Senior Mechanical Engineer
Novarc Technologies Inc
Burnaby, BC
The Senior Mechanical Engineer is a key technical and project leadership role responsible for the end-to-end design, development, and production of complex mechanical systems, robotic…
Added 4 days ago
RC
Sr. Technical Analyst - Hybrid
Randstad Canada
Mississauga, ON
- $110,000 to $130,000 CAD / year
We are seeking a Senior Technical Analyst / Developer to design, develop, deploy and support machine learning, data and AI solutions. This senior hands-on role combines technical analysis,…
Added 4 days ago
H
Android & Linux Software Engineer
HP
Vancouver, BC
- $86,350 to $114,000 CAD / year
…Android, from implementation through unit testing, working with senior engineers on design. These solutions must perform reliably in demanding customer environments, including highly…
Added 4 days ago
Senior Solution Architect, AI & Platform
United States - Genesys Cloud Services, Inc.
Toronto, ON
…experiences that are reliable, secure, scalable, and measurable. As a Senior Solution Architect, AI & Platform, you will serve as a technical authority for complex enterprise opportunities,…
Added 5 days ago
Project Manager, Renewable Energy Programs
Toronto Transit Commission
Toronto, ON
As a senior-level practitioner at the forefront of advancing the Department’s and TTC’s strategic goals and objectives, the Project Manager leads integrated TTC and consultant project…
Added 6 days ago
Senior Full Stack Software Engineer
Provision
Toronto, ON
We are hiring two Senior Full Stack Software Engineers to independently own consequential product and technical work across the stack. You will turn ambiguous customer problems into…
Added 6 days ago
Ingénieur(e) sénior en systèmes de test de production UWB I Senior Production Test Systems Engineer
SPARK Microsystems International Inc
Montréal, QC
The Senior Production Test Systems Engineer supports manufacturing and production test activities for products based on SPARK’s Ultra-Wideband (UWB) technology and contributes to the design…

Randstad Canada

Senior Software Developer - Full Stack

Toronto, ON, Canada

Apply on randstad.ca About employer

Applications open in a new tab.

Job details

Apply by: Dec 20, 2026
Posting language: English
Posted: Oct 22, 2026

Original job description

We are seeking a highly skilled Senior Software Developer - Full Stack to support the development and modernization of backend integration services, healthcare data interfaces, and user preference portals. In this role, you will be responsible for building Java Spring Boot servers that process clinical reports and support data exchange with electronic medical record systems. Working across full-stack layers, you will engineer NextGen Connect (Mirth) message channels, construct HAPI FHIR data structures, implement secure OAuth 2.0 and mTLS authentication protocols, and build ReactJS front-end interfaces to manage pub/sub subscription preferences.

Location: Toronto, ON (Onsite as needed basis)

Duration: 6-month contract.

Advantages
Modern Healthcare Integration Stack: Hands-on engineering using Java Spring Boot, HAPI FHIR (R4/DSTU2), NextGen Connect (Mirth), and ReactJS.

End-to-End Security Focus: Implement industry-standard security protocols, including OAuth 2.0, mTLS, and containerized Docker deployments.

Full-Stack Delivery Scope: Combine backend integration, API development, event-driven pub/sub workflows, and front-end user experience design.

Flexible Onsite Work Model: Enjoy remote flexibility with onsite collaboration in Toronto required only on an as-needed basis.

Responsibilities
Full-Stack Java Application Engineering: Design, build, test, and support Java Spring Boot microservices, REST APIs, and backend integration layers to support clinical data delivery solutions.

FHIR Resource Processing: Implement the HAPI FHIR library to parse, validate, transform, and process FHIR R4 and DSTU2 resources across backend workflows.

Message Channel & Integration Engineering: Build, configure, and maintain NextGen Connect (Mirth) channels to ingest, transform, validate, route, and acknowledge HL7 v2 clinical data streams.

Subscription & Preference Logic: Develop ReactJS user interfaces that enable clinical users to configure data preferences, translating user selections into valid pub/sub subscription filter criteria.

Security & Containerization: Implement secure service-to-service communication using OAuth 2.0, mutual TLS (mTLS), audit logging, and role-based access controls, while packaging services into Docker containers.

Quality Assurance & Testing Automation: Create and execute unit, integration, interface, conformance, and end-to-end regression test suites covering HL7 v2, FHIR, pub/sub, and ReactJS components.

Cross-Functional Collaboration: Partner with architects, UX designers, security leads, QA teams, and external technical partners to define technical specifications, deployment runbooks, and interface mappings.

Qualifications
Public Sector Experience: Prior experience delivering software solutions within a public sector or enterprise healthcare environment (Strictly Required).

Java, Spring Boot & HAPI FHIR: Senior-level hands-on development experience with Java, Spring Boot, REST APIs, and the HAPI FHIR library to process FHIR R4 and DSTU2 resources (Strictly Required).

NextGen Connect (Mirth) & HL7 v2: Demonstrated experience configuring NextGen Connect (Mirth) channels for HL7 v2 message transformation, routing, validation, error handling, and Java service integration (Strictly Required).

ReactJS & Event-Driven Subscriptions: Strong ReactJS development experience building web user interfaces integrated with Java services and translating user preferences into FHIR Subscription filter criteria (Strictly Required).

Secure Delivery & Containerization: Hands-on experience implementing OAuth 2.0, mTLS, audit logging, automated testing, and Docker containerization (Strictly Required).

Nice-to-Have Assets:
Detailed knowledge of clinical report exchange specifications, routing protocols, and acknowledgement workflows.

Experience with FHIR Subscription and SubscriptionTopic concepts, practitioner-based routing, and FHIR profile validation.

Familiarity with automated build, test, container scanning, and deployment CI/CD pipelines.

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 developer will build and maintain Java Spring Boot backend services and healthcare data interfaces, including NextGen Connect channels and FHIR data processing. They will also build ReactJS screens where clinical users set data preferences, and secure and containerize these services.

Requirements

Candidates need public sector or enterprise healthcare software experience, senior Java and Spring Boot skills with HAPI FHIR, and Mirth channel configuration for HL7 v2. They also need ReactJS, OAuth 2.0 and mTLS security, and Docker experience.

Skills

Java
Spring Boot
REST APIs
HAPI FHIR
FHIR R4
FHIR DSTU2
NextGen Connect (Mirth)
HL7 v2
ReactJS
OAuth 2.0
mTLS
Docker
Audit logging
Role-based access control
Pub/sub subscriptions
FHIR Subscription filter criteria
FHIR profile validation
Automated testing
Unit testing
Integration testing
Regression testing
CI/CD pipelines
Container scanning
Microservices
Full-stack development

Keywords

Senior Software Developer
Full Stack Developer
Java
Spring Boot
HAPI FHIR
FHIR R4
FHIR DSTU2
NextGen Connect
Mirth
HL7 v2
ReactJS
OAuth 2.0
mTLS
Docker
REST APIs
pub/sub
FHIR Subscription
healthcare integration
public sector
contract

Seniority

Senior

Tools

Java
Spring Boot
HAPI FHIR
NextGen Connect (Mirth)
ReactJS
Docker

Languages

English

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Work requirements

Jobs in Canada