Toronto, On Full stack java / api developer Jobs – 113 Openings This Week

Senior Software Developer - Full Stack - Toronto
Randstad —Toronto, ON
- $551.64–$596.33 a day
- Temporary
- Software troubleshooting
- Epic
Quick apply
4d
Associate, Software Engineer, New Grad Card Expansion
Capital One - CA —Toronto, ON
- Full-time
- Hybrid work
- Writing skills
- Presentation skills
- Bachelor's
14d
Senior Software Developer - Toronto
Randstad —Toronto, ON
- $554.83–$590.41 a month
- Temporary
- Software troubleshooting
- SQL
- Presentation skills
Quick apply
4d
Senior React Native Developer - Mississauga
Randstad —Mississauga, ON
- $74.83 an hour
- Temporary
- Hybrid work
- Azure
- AWS
- Mentoring
Quick apply
4d
Senior Full Stack Engineer- Angular
I8IS INC. —Toronto, ON
- Azure
- Java
- AWS
Quick apply
12h
Senior Java Developer - Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Java
- Presentation skills
- APIs
Senior Software Developer
Autodesk —Toronto, ON
- $107,000–$157,300 a year
- Full-time
- Software troubleshooting
- Engineering
- System design
Senior Data Engineer
Royal Bank of Canada —Toronto, ON
- Full-time
- Azure
- Computer Science
- Engineering
Senior AI Engineer, Banking Technology – Vice President
Citi —Mississauga, ON
- $120,800–$170,800 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Master's degree
Lead AI Engineer, Banking Technology - Senior Vice President
Citi —Mississauga, ON
- $145,100–$217,700 a year
- Full-time
- Hybrid work
- Computer Science
- Java
- Master's degree
Sr. Software Engineer, Backend
Pinterest —Toronto, ON
- Hybrid work
- Computer science
- Computer Science
- Java
Sr. Consultant, Full Stack Application Developer
CIBC —Toronto, ON
- Full-time
- Azure
- System design
- Java
10h
Sr. Consultant, Full Stack Application Developer
CIBC —Toronto, ON
- Full-time
- Azure
- System design
- Java
10h

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Senior Software Developer - Full Stack - Toronto

Randstad -
Toronto, ON

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Job details

Temporary
$551.64–$596.33 a day
4 days ago

Qualifications

Spring Boot
Authentication
Software engineering
Software troubleshooting
React
RESTful API
Meditech
Responsive design
HL7
Microservices
Cerner
Back-end development
Regression testing
React.js
Epic
Software development or architecture experience

Full job description

We are seeking a highly skilled Senior Software Developer - Full Stack to lead the development, modernization, and integration of modern full-stack application components. In this role, you will build provider- and patient-facing web interfaces using ReactJS while engineering secure backend microservices and APIs with Java Spring Boot. Acting as a specialist in healthcare interoperability and system integration, you will connect full-stack applications with hospital information systems (HIS) like Epic, Cerner, and MEDITECH using SMART on FHIR, FHIR APIs, HL7v2 interfaces, and the Mirth integration engine.

Location: Toronto, ON (Hybrid – onsite as needed)

Duration: 8-month contract

Public Sector Experience: Must Have

Advantages
Specialized High-Demand Tech Stack: Work hands-on across ReactJS, Java Spring Boot, SMART on FHIR, FHIR APIs, and Mirth.

Direct Integration Impact: Connect modern full-stack web applications with leading enterprise platforms including Epic, Cerner, and MEDITECH.

End-to-End Development Scope: Drive full-lifecycle software delivery from UI design and microservice engineering to interface testing.

Flexible Hybrid Setup: Enjoy schedule flexibility with a hybrid onsite work structure in Toronto.

Responsibilities
Full-Stack Application Development: Design, build, test, and support responsive ReactJS frontend UI components and robust Java Spring Boot microservices and REST APIs.

SMART on FHIR & Clinical Context Handling: Implement and maintain SMART on FHIR launch flows, FHIR API interactions, clinical launch context handling, and secure authentication mechanisms (OAuth2/OIDC, JWT).

Hospital Information System (HIS) Integration: Develop and maintain integrations connecting full-stack application services with core HIS platforms such as MEDITECH, Epic, and Cerner.

Mirth Integration Engine & Message Routing: Design, build, test, and troubleshoot HL7v2 and FHIR message transformations, routing rules, validations, error queues, and reconciliation flows using Mirth.

Workflow & Scheduling Engineering: Integrate scheduling, encounter, provider, patient, and clinical workflows across web applications and underlying data stores.

Legacy System Modernization: Build modern, standards-based, and maintainable software components to support the retirement and replacement of legacy application infrastructure.

Quality Assurance & Testing Support: Partner with QA resources to execute integration testing, interface validation, regression testing, defect fixes, and release readiness activities.

Technical Documentation & Governance: Author comprehensive technical designs, API specs, interface guidelines, data mapping documents, deployment notes, and operational support materials.

Qualifications
Hospital Information System (HIS) Integrations: 5+ years of hands-on experience integrating application systems with HIS platforms such as Epic, Cerner, or MEDITECH (Strictly Required).

Interoperability & Standards Specialist: Deep specialist experience with SMART on FHIR, FHIR APIs, HL7v2, clinical launch context, OAuth2/OIDC, JWT, and secure application integrations (Strictly Required).

Mirth Integration Engine Depth: Hands-on experience with Mirth integration engine for HL7v2 message routing, transformations, validations, and production troubleshooting (Strictly Required).

ReactJS Frontend Proficiency: Strong hands-on ReactJS development experience building complex production web application interfaces (Strictly Required).

Java & Spring Boot Backend Mastery: Strong experience developing microservices, REST APIs, and backend integration components using Java and Spring Boot (Strictly Required).

Workflow & Security Architecture: Experience with clinical scheduling, encounter workflows, patient/provider context handling, audit logging, and building secure, scalable healthcare components (Strictly Required).

Public Sector Expertise: Prior experience delivering software development and integration within public sector environments (Strictly Required).

Nice-to-Have Assets:
Experience with healthcare referral platforms (e.g., Ocean, Novari) or provider directory integrations.

Familiarity with vendor-specific integration portals (e.g., Epic App Orchard, MEDITECH APIs).

Practical experience working with core FHIR R4/R5 resources (Patient, Practitioner, Encounter, Appointment, Schedule, Slot).

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 [email protected] to ensure their ability to fully participate in the interview process.

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