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Contract Java Developer Jobs in Mississauga, ON (NOW HIRING)

Deloitte

Senior Java Developer - Operate

Toronto, ON · On-site

CA$72K - CA$138K/yr

Temporary Contract Work Model: Hybrid Reference code: 132943 Primary Location: Toronto, ON All ... As a Java Developer at Deloitte, you will play a crucial role in designing, developing, and ...

NearSource

Senior JAVA Backend Developer

Toronto, ON · Remote

CA$80 - CA$90/hr

T4 Contract Rate: CAD $80 to $90 per Hour Role Summary NearSource is seeking a Senior Java Backend Developer to contribute to a large-scale cloud-native platform for a Fortune 500 product company.

Capco

Jr. Back-End Developer (Contract)

Toronto, ON

The Role Capco is seeking an Junior Backend Developer ( Contract - 6 months ) to support a major ... Design, develop, and maintain backend services using Java and Spring Boot within enterprise-scale ...

Behavox

Senior Software Engineer (JAVA)

Toronto, ON · On-site

The role combines deep hands-on Java engineering with architectural ownership - from high-level ... contract, component) * Technical roadmap contribution: Drive the engineering agenda for assigned ...

Behavox

Senior Software Engineer (JAVA)

Toronto, ON

The role combines deep hands-on Java engineering with architectural ownership - from high-level ... contract, component) * Technical roadmap contribution: Drive the engineering agenda for assigned ...

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All JobsContract Java Developer JobsContract Java Developer Jobs in Mississauga, ON

Contract Java Developer information

See Mississauga, ON salary details

$33

$55

$66

How much do contract java developer jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for contract java developer in Mississauga, ON is $55.27, according to ZipRecruiter salary data. Most workers in this role earn between $47.10 and $65.89 per hour, depending on experience, location, and employer.

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

To thrive as a Contract Java Developer, you need strong Java programming skills, experience with object-oriented design, and a solid understanding of software development lifecycles, typically supported by a relevant degree or certifications. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git is commonly required. Excellent problem-solving, adaptability, and clear communication skills help you efficiently integrate with new teams and projects. These abilities ensure you can quickly deliver high-quality, maintainable code that meets client requirements in a dynamic contract environment.

What are some common challenges faced by Contract Java Developers when integrating with existing teams and projects?

Contract Java Developers often need to quickly adapt to unfamiliar codebases and team workflows, which can be challenging given tight project timelines. Effective communication is essential, as they must coordinate with permanent staff, understand project requirements, and align with established coding standards and deployment processes. Many contractors also need to manage multiple projects or clients simultaneously, requiring strong time management skills. Proactively seeking clarity on expectations and leveraging onboarding resources can help ease the integration process.

What are Contract Java Developers?

Contract Java Developers are software professionals who specialize in the Java programming language and are hired on a contract basis, rather than as permanent employees. They typically work for a set period of time or on a specific project, developing, testing, and maintaining Java-based applications according to the client’s requirements. These developers are often brought in to provide specialized expertise, handle workload spikes, or complete short-term projects. Their roles may include writing code, fixing bugs, integrating systems, and ensuring applications meet performance and security standards.

What is the difference between Contract Java Developer vs Contract Software Engineer?

AspectContract Java DeveloperContract Software Engineer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science or related, various programming certifications
Work EnvironmentDevelopment teams, client sites, remote optionsDevelopment teams, client sites, remote options
Industry UsageTech, finance, healthcare, e-commerceTech, finance, healthcare, e-commerce
Search & Comparison IntentFocus on Java-specific roles, Java projectsBroader software development roles, multiple languages

Contract Java Developers specialize in Java programming and are often sought for Java-specific projects. Contract Software Engineers have a broader scope, working with multiple programming languages and technologies. Both roles are common in tech industries and share similar work environments, but the Java Developer role is more focused on Java expertise.

What are the most commonly searched types of Java Developer jobs in Mississauga, ON? The most popular types of Java Developer jobs in Mississauga, ON are:
Contract Java Developer jobs near you
Infographic showing various Contract Java Developer job openings in Mississauga, ON as of July 2026, with employment types broken down into 50% Full Time, and 50% Contract. Highlights an 100% In-person job distribution, with an average salary of $114,954 per year, or $55.3 per hour.

Java Developer AWS & Capital Markets

Jay Analytix

Toronto, ON • On-site

Full-time

Re-posted 5 days ago

Job description

Job Title: Java Developer AWS & Capital Markets

Location: Toronto, ON (Hybrid)
Job Type: Contract
Duration: Long-Term
Work Authorization: Must be authorized to work in Canada

Job Summary

We are seeking an experienced Java Developer with strong AWS cloud expertise and Capital Markets domain knowledge to join a leading financial institution. The ideal candidate will have hands-on experience developing scalable enterprise applications, working with cloud-native technologies, and supporting trading, risk, or post-trade systems within a Capital Markets environment.

Required Skills & Experience
  • 7+ years of experience in Java application development.
  • Strong expertise in Core Java, Java 8/11/17, Multithreading, Collections, and JVM performance tuning.
  • Experience with Spring Boot, Spring MVC, Spring Data, and Microservices architecture.
  • Hands-on experience with AWS services such as EC2, ECS, EKS, Lambda, S3, RDS, CloudWatch, API Gateway, and IAM.
  • Strong experience with RESTful APIs and event-driven architectures.
  • Experience with SQL databases such as Oracle, PostgreSQL, or SQL Server.
  • Familiarity with messaging technologies such as Kafka, JMS, or MQ.
  • Strong understanding of CI/CD pipelines using Jenkins, GitHub Actions, or GitLab.
  • Experience with Docker and Kubernetes.
  • Solid knowledge of software design patterns and Agile methodologies.
  • Capital Markets experience, including Front Office, Middle Office, Risk Management, Trading, Equities, Fixed Income, Derivatives, or Post-Trade Processing.
Responsibilities
  • Design, develop, and maintain high-performance Java-based applications supporting Capital Markets business functions.
  • Build and deploy cloud-native applications on AWS.
  • Develop scalable microservices and REST APIs.
  • Collaborate with traders, business analysts, product owners, and technology teams to gather and implement requirements.
  • Integrate applications with market data feeds, trading platforms, and downstream systems.
  • Optimize application performance, reliability, and scalability.
  • Participate in code reviews, testing, and production support activities.
  • Implement security, monitoring, and operational best practices within AWS environments.
  • Contribute to architecture discussions and technical design decisions.
Nice-to-Have Skills
  • Experience with Python scripting for automation and data processing.
  • Knowledge of Infrastructure as Code using Terraform or CloudFormation.
  • Experience with OpenShift or Kubernetes platforms.
  • Exposure to Murex, Calypso, Summit, Bloomberg, Reuters, or other Capital Markets platforms.
  • Understanding of DevOps and Site Reliability Engineering (SRE) practices.
Education
  • Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field.
Key Competencies
  • Strong analytical and problem-solving skills.
  • Excellent communication and stakeholder management abilities.
  • Ability to work effectively in a fast-paced banking and Capital Markets environment.
  • Strong attention to detail and commitment to delivering high-quality solutions.

Keywords: Java, Spring Boot, Microservices, AWS, Capital Markets, Trading Systems, Fixed Income, Equities, Derivatives, Kafka, REST API, Oracle, PostgreSQL, Docker, Kubernetes, CI/CD, Banking, Financial Services.