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Java Contract Jobs in Toronto, ON (NOW HIRING)

Collabera Canada Inc

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Senior Java Engineer (React)

Toronto, ON · On-site

CA$70 - CA$120/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Title: Senior Java Engineer Type: 6-month contract + opportunity to extend Location: 1 Queen Street East, Toronto Work Model: Hybrid (4 days on-site) Day-to-Day Responsibilities * Refactor and ...

Prophix

Senior Back End Engineer Java/OLAP

Etobicoke, ON · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

As a Senior Back-End Engineer specializing in Java and OLAP, you will own the Java side of that ... NET consumer aligned as cube contracts evolve. * Investigate and resolve OLAP-specific defects ...

Collabera Canada Inc

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Senior Java Developer (Capital Market/Terraform)

Toronto, ON · On-site

CA$48 - CA$120/hr

Senior Java Developer (Capital Market and Front Office/Backoffice/Cache Management/ Terraform) Duration: 6+ months (Contract) Possibility of Extension Location: Toronto - Hybrid Pay Rate Range: $50 ...

CorGTA

CIAM Security Engineer - Contract

Toronto, ON · Hybrid

CA$96/hr

Location: Downtown Toronto, 2x per week on-site Structure: 2 month contract, plus possible ... Java/J2EE, Spring Framework, Node.js, RESTful APIs, eventdriven architectures (Kafka), and ...

Purolator

Technology Developer

Mississauga, ON · On-site

Write and maintain automated unit, integration, contract, API and end-to-end tests while promoting ... Strong Java and Spring Boot development experience, including REST APIs, Maven, JSON and service ...

Td

Senior IT Developer

Toronto, ON · On-site +1

CA$102K - CA$125K/yr

... contract testing for distributed systems Participate in on-call support and root-cause analysis Required Experience 6+ years backend or distributed systems experience 3+ years Java and Spring Boot ...

Bmo

Lead Developer

Toronto, ON · On-site

CA$75K - CA$141K/yr

  • Medical

  • Life

  • Retirement

Java, J2EE, Angular, SQL, PL/SQL, Agile/Scrum Enterprise, Application Development, System ... contract for service to submit resumes.

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Showing results 1-20

All JobsJava Contract JobsJava Contract Jobs in Toronto, ON

Java Contract information

What is a Java contract?

A Java contract job is a temporary position where a programmer is hired to work on projects using the Java programming language for a fixed period, rather than as a permanent employee. Contractors are often brought in to fill skill gaps, complete specific projects, or handle increased workloads. These roles can be full-time or part-time and typically last from a few months to over a year, depending on the project's needs. Contractors may work onsite or remotely and are usually paid hourly or by project milestone. Java contract jobs offer flexibility and the opportunity to work with a variety of companies and technologies.

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

To thrive as a Java Contractor, you need strong proficiency in Java programming, experience with object-oriented design, and a solid understanding of software development methodologies, often supported by a relevant degree or certifications like Oracle Certified Professional Java Programmer (OCPJP). Familiarity with development tools such as Eclipse or IntelliJ IDEA, version control systems like Git, and frameworks such as Spring or Hibernate is typically required. Excellent problem-solving, adaptability, and communication skills help you collaborate with diverse teams and quickly respond to project changes. These skills ensure high-quality, maintainable code and successful completion of contract-based software projects.

What are some common challenges faced by Java contracts and how can they be managed effectively?

Java contractors often work on short-term projects or fill skill gaps in development teams, which can present challenges such as quickly adapting to new codebases and varying team dynamics. To manage these effectively, it’s important to have strong communication skills, a proactive approach to understanding project requirements, and the ability to rapidly learn existing systems. Building rapport with permanent team members and maintaining thorough documentation can also help ease the transition. Staying current with Java frameworks and tools further ensures you can contribute value from day one.

What is the difference between Java Contract vs Java Developer?

AspectJava ContractJava Developer
CredentialsTypically requires Java certifications, experience in contract rolesRequires Java certifications, degree in computer science or related field
Work EnvironmentProject-based, short-term assignments, flexible hoursFull-time, ongoing employment, structured work hours
Employer & Industry UsageUsed by companies for specific projects, consulting firmsEmployed directly by companies, tech firms, or agencies
Search & Comparison IntentOften compared for contract opportunities, flexibilityCompared for full-time roles, career growth

Java Contract roles are typically project-based, offering short-term assignments with flexible schedules, ideal for those seeking variety or freelance work. Java Developers usually work full-time, with ongoing responsibilities and career development opportunities. Both roles require Java certifications and experience, but differ mainly in employment type and work environment.

What are the most commonly searched types of Java jobs in Toronto, ON?

The most popular types of Java jobs in Toronto, ON are:

What are popular job titles related to Java Contract jobs in Toronto, ON?

For Java Contract jobs in Toronto, ON, the most frequently searched job titles are:

What job categories do people searching Java Contract jobs in Toronto, ON look for?

The top searched job categories for Java Contract jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Java Contract jobs?

Cities near Toronto, ON with the most Java Contract job openings:

Java Contract jobs near you
Infographic showing various Java Contract job openings in Toronto, ON as of August 2026, with employment types broken down into 87% Full Time, 4% Part Time, and 9% Contract. Highlights an 81% Physical, 8% Hybrid, and 11% Remote job distribution.

Java Open Source Contributor

YO AI Labs

Toronto, ON • Remote

Full-time

Posted 25 days ago

Job description

Job Description

Role Title: Java Open Source Contributor

Role Type: Contract

Location: Remote


Scope of Work:

  • Contribute production-quality code, reviews, and documentation to open-source repositories relevant to the customer's project.
  • Design, implement, and optimize complex algorithms and system components using one or more of the following languages: C++, Python, JAVA, GoLang, Typescript, or Rust.
  • Identify and resolve technical challenges, bugs, and performance bottlenecks in existing codebases.
  • Collaborate with other contributors and stakeholders to align deliverables with project goals and best practices.
  • Create, maintain, and enhance technical documentation to support knowledge sharing and onboarding.
  • Participate in code discussions and provide constructive feedback to elevate overall code quality.


Preferred Qualifications:

  • Previous experience working on large-scale, distributed codebases.
  • Familiarity with modern AI or machine learning systems is a plus, though not required.
  • Background in participating in rigorous code reviews and contributing to the development of software best practices.