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Contract Backend Developer Jobs in Ontario (NOW HIRING)

StackandCo

Net Software Developer (with particular focus on back end development) to join their collaborative ... contract after that. \n \n \n

Source Code

RQ00687 - Sr. Software Developer

Toronto, ON · Hybrid

CA$87.38 - CA$104.86/hr

RQ00687 - Sr. Software Developer 9+ month contract (188 business days) - possible extension ONSITE ... years working with backend data and BMC ITSM v9+ features. * 8+ years of experience mapping ...

StackandCo

Net Software Developer (with particular focus on back end development) to join their collaborative ... contract after that. \n \n \n

Purolator

Technology Developer

Mississauga, ON

Description We are seeking a hands-on senior software engineer who can solve complex backend and ... Write and maintain automated unit, integration, contract, API and end-to-end tests while promoting ...

Purolator

Technology Developer

Mississauga, ON · On-site

Description We are seeking a hands-on senior software engineer who can solve complex backend and ... Write and maintain automated unit, integration, contract, API and end-to-end tests while promoting ...

Proax Technologies

Software Developer

London, ON · On-site

... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...

Crowdlinker

React Native Developer (Remote, Open Roster Contractor Opportunity) Please note: this is an open ... Understanding of backend frameworks like Express, Node.js, NestJS, or Laravel etc. * Experience ...

Proax Technologies

Software Developer

London, ON · On-site

... website backend (Windows/Linux, Apache, PHP, Docker) * Preparing e-commerce website data (MySQL ... company contract, pricing with vendors and customers * Provide software support to various ...

Odaia Intelligence Inc.

Full-Stack Developer

Toronto, ON · On-site

Design and maintain reliable APIs and backend services that connect ODAIA's data, machine learning ... contracts. * Strong software engineering fundamentals, including modular design, clear interfaces ...

New

Geotab

Software Developer

Oakville, ON

Mid-morning you might drop into a backend slice: a Go service endpoint or a Python data pipeline ... API contract decision. Afternoons often involve a code review - either giving feedback to a ...

YO AI Labs

Software Engineer - Remote

Toronto, ON · Remote

Contract Location: Remote Job Summary: We are looking for experienced software engineers to help ... Work on challenging software engineering tasks across backend, full-stack, infrastructure, and ...

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All JobsContract Backend Developer JobsContract Backend Developer Jobs in Ontario

Contract Backend Developer information

What are the key skills and qualifications needed to thrive as a contract backend developer, and why are they important?

To thrive as a Contract Backend Developer, you need strong programming skills in languages like Python, Java, or Node.js, along with experience in database management and API development, supported by a relevant degree or proven project experience. Familiarity with frameworks (such as Django, Spring, or Express), cloud services (like AWS or Azure), and version control systems (e.g., Git) is typically expected. Excellent problem-solving abilities, strong communication, and the ability to quickly adapt to new codebases and team environments set top contractors apart. These skills and qualities are crucial for delivering reliable, scalable backend solutions and integrating smoothly into diverse project teams.

What are some common challenges faced by contract backend developers when joining a new project?

Contract Backend Developers often encounter challenges such as quickly understanding existing codebases, adapting to different tech stacks, and aligning with the team's development practices. Since contract roles usually have tight deadlines, developers must rapidly familiarize themselves with project documentation and workflows. Effective communication with team members and proactive clarification of requirements are essential to ensure smooth integration and successful project outcomes.

What is a contract backend developer?

Contract backend developers are professionals hired on a temporary or project basis to build and maintain the server-side logic, databases, and APIs that power web or mobile applications. They work behind the scenes to ensure that applications function smoothly, handle data efficiently, and communicate effectively with front-end systems. Unlike full-time employees, contract backend developers typically work for a set duration or on specific projects, offering flexibility to both clients and developers. They often bring specialized expertise in programming languages such as Python, Java, Node.js, or Ruby, and may work remotely or on-site depending on the contract terms.
What are the most commonly searched types of Backend Developer jobs in Ontario? The most popular types of Backend Developer jobs in Ontario are:
What job categories do people searching Contract Backend Developer jobs in Ontario look for? The top searched job categories for Contract Backend Developer jobs in Ontario are:
What cities in Ontario are hiring for Contract Backend Developer jobs? Cities in Ontario with the most Contract Backend Developer job openings:
Contract Backend Developer jobs near you
Infographic showing various Contract Backend Developer job openings in Ontario as of August 2026, with employment types broken down into 55% Full Time, and 45% Contract. Highlights an 100% In-person job distribution.

RQ00731 - Software Developer - Full Stack - Senior

Source Code

Toronto, ON

Contractor

Posted 11 days ago

Job description

RQ00731 - Software Developer - Full Stack - Senior

7+ month contract (164 business days) - possible extension 

Hybrid (as needed onsite) - 525 University Avenue

Must Haves:

  • 7+ years of hands-on ReactJS development experience building complex production-grade web applications.
  • 10+ years of Java, JDBC, and Spring Boot development experience, including backend services, APIs, and integrations and database-driven applications.
  • Public Sector experience
  • Specialist experience with Pexip APIs, Zoom APIs, video platform integration, video workflow implementation, video bridge programming, and virtual care workflow orchestration. 
  • Strong hands-on experience with HL7v2 interfaces, FHIR APIs, clinical workflow integration, scheduling integration, and healthcare interoperability patterns.

Description:

The Agency requires a Senior Fullstack Developer contract resource through Flextrack to support Virtual Care Product modernization, with a specialized focus on SMART on FHIR application development, hospital information system integration, HL7v2 interfaces, FHIR APIs, Mirth integration engine, scheduling integration, and clinical workflow integration. This resource must be a senior specialist in SMART on FHIR, FHIR, HL7v2, ReactJS, Java Spring Boot, Mirth integration engine, and integration with hospital information systems such as MEDITECH, Epic, and Cerner. The role will support secure clinical launch workflows, patient/provider context handling, scheduling and encounter integration, clinical data exchange, and standards-based integration between the Agency Virtual Care Products and hospital systems.

Responsibilities:

  • Design, develop, test, and support ReactJS frontend components for the Agency Virtual Care Products.
  • Build and maintain Java, JDBC, and Spring Boot backend services supporting virtual care workflows, video integration, session management, scheduling integration, and operational reporting.
  • Integrate Zoom APIs and Pexip APIs into provider-facing, patient-facing, and administrative virtual care workflows.
  • Develop and support virtual care capabilities including waiting rooms, breakout workflows, session routing, meeting initiation, participant management, provider handoff workflows, and multi-party clinical encounter support.
  • Design, implement, and troubleshoot HL7v2 and FHIR-based integration components related to scheduling, encounter context, patient/provider context, and virtual visit workflows.
  • Support integration with NetIQ workflows and identity-enabled application processes, including role-based and context-aware workflow behaviour.
  • Participate in retirement and replacement of legacy TSM-related functionality by implementing modern, secure, maintainable application and integration components.
  • Collaborate with architects, video platform teams, integration teams, security, privacy, product owners, UX, QA, and operations stakeholders.
  • Develop and maintain APIs, data access layers, backend business logic, message processing logic, integration services, and operational support components.
  • Support AWS OpenSearch integration where required for search, discovery, logging, analytics, troubleshooting, or operational reporting.
  • Work with test resources to support unit testing, integration testing, interface testing, regression testing, defect resolution, release readiness, and production implementation.
  • Prepare technical design documentation, API documentation, data mapping documentation, configuration notes, deployment notes, and knowledge transfer materials.

Desired Skills:

  • Experience with Telemedicine Network workflows virtual care workflows, and video service delivery models.
  • Experience with video bridge programming, Pexip configuration, Pexip API integration, Zoom API integration, and virtual visit workflow orchestration.
  • Experience building Java Spring Boot microservices in a healthcare, virtual care.
  • Experience with AWS OpenSearch for search, discovery, logging, analytics, operational monitoring, or troubleshooting use cases.
  • Experience with scheduling workflows, encounter workflows, provider workflows, patient workflows, privacy, security, accessibility, audit logging, and operational monitoring.

Required Skills:

  • ReactJS frontend development.
  • Java, JDBC, and Spring Boot backend development.
  • REST API design, integration, troubleshooting, and documentation.
  • Pexip API and Zoom API integration.
  • HL7v2 interface design, development, testing, and troubleshooting.
  • FHIR API integration and clinical workflow integration.
  • Video platform workflow integration, including video bridge integration, participant management, waiting room workflows, breakout workflows, and provider/patient workflow support.
  • NetIQ workflow or enterprise IAM workflow integration.
  • Secure application development, including authentication, authorization, audit logging, privacy-aware design, and role/context-based access.
  • Database access, data modelling, SQL, JDBC, and backend integration patterns.

Deliverables:

  • ReactJS frontend components supporting Virtual Care Product workflows.
  • Java/JDBC/Spring Boot backend services and APIs supporting video workflow modernization.
  • Zoom API and Pexip API integration components.
  • Video workflow capabilities such as waiting rooms, breakout workflows, session routing, participant management, provider workflows, patient workflows, and multi-party visit support.
  • HL7v2 and FHIR integration components supporting scheduling, encounter, patient, provider, and virtual visit workflows.
  • NetIQ workflow integration components or configuration support.
  • AWS OpenSearch integration artifacts where required.
  • Technical design documents, API specifications, interface specifications, data mapping documents, configuration notes, deployment notes, and operational support documentation.
  • Unit, integration, regression, interface, and release validation support.
  • Defect fixes, code reviews, sprint deliverables, demos, and release support

AI Disclaimer: Source Code may use artificial intelligence (AI) tools to assist in certain aspects of its recruiting and business operations.

Note: The higher end of the range is intended for absolutely exceptional candidates who meet all must-have requirements and most or all nice-to-have qualifications. The client will evaluate candidates based on both rate expectations and overall skill set when shortlisting.

INCORPORATED RATE RANGE (7.25 billable hours per day)

  • $90.18/hr - $108.22/hr Inc.

T4 RATE RANGE (7.25 billable hours per day)

  • $72.14/hr - $86.57/hr T4