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Contract Senior Java Developer Jobs in Ontario (NOW HIRING)

We are seeking a highly skilled and proactive Java Developer with deep expertise in Java, Spring Framework, Kafka, Message Queuing, Dynatrace, and microservices architecture. This role requires a ...

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This senior role combines technical leadership with project management to deliver critical ... Minimum 6+ years as a Senior Java Developer * Familiarity with ETL tools and Oracle database ...

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Hiring a Senior JAVA Developer (Must-Have Experience: Financial Services / Insurance domain, JAVA ... Initial contract for 12 months, with good possibilities of further extensions. * Job Location

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Senior Java Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

About The Role As a Full Stack Java Developer you'll be tasked with working on web application development in Java and Spring Boot. Working within the software development team, your duties will ...

"5 years of relevant experience in Apps Development role with proven track record of delivery Strong hands-on technical experience with Java technology stack & Kubernetes Enriched experience ...

"5+ years of relevant experience in Apps Development role with proven track record of delivery Strong hands-on technical experience with Java technology stack & Kubernetes Enriched experience ...

As a developer, the candidate will be responsible for developing & deploying technical solution ... es:- Java (Core, JDBC, MT, Collections, I/O), Spring B oot- SQL.PL-SQL on Oracle DB- Container ...

... Centre on a Senior Software Engineer vacancy (multiple available). \n \n \n \n \n \n We need ... Highly skilled Software Engineer, ideally 7+ years' experience primarily in Java (flexible) \n

... on a Senior Software Engineer vacancy. \n \n \n \n \n \n This is a nice opportunity to join a ... Highly skilled Software Engineer, ideally 7+ years' experience primarily in Java (flexible) \n

Minimum 7 years Java Development experience \n * Excellent communication skills both written and verbal \n * Strong experience using Spring framework \n * SQL experience \n \n \n This role will be ...

As part of a cutting-edge project, you will fulfill the duties of a Senior Java Full Stack Engineer in a hybrid contract model. Your focus will be on developing scalable cloud services, REST APIs ...

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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.

... n We need Senior Java Engineers who have led teams, to work on both the Architecture and Development on multiple key projects. \n \n \n \n \n \n This is ideal for someone who enjoys mentoring ...

... n * 5+ years' Java Development experience \n * Cloud experience \n * An interest in Machine ... An ambition to lead engineers would be nice to have \n * Solid Linux background \n \n \n \n \n \n

\n \n \n \n \n Our client has a requirement for a highly experienced Java Developer for a contract position in Dublin. You will be joining a highly collaborative team offering you the opportunity to ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position. This will be an initial 6 month contract with the possibility of extending after that (remote interviewing and ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin. You will be joining a well established team of experienced developers, giving you the perfect ...

Elevate your engineering career at Veeva as a Senior Java Software Engineer focused on full-stack product development. Bring your Java expertise to create scalable applications. This position ...

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Contract Senior Java Developer information

What is the difference between Contract Senior Java Developer vs Contract Java Developer?

AspectContract Senior Java DeveloperContract Java Developer
Required CredentialsJava certifications, experience in complex projectsJava certifications, basic to intermediate experience
Work EnvironmentLarge enterprise, complex systemsStartups, small to medium projects
Employer & Industry UsageFinancial, healthcare, tech firmsTech startups, software agencies
Search & Comparison IntentSeeking experienced Java roles, seniority levelEntry to mid-level Java roles

The main difference between a Contract Senior Java Developer and a Contract Java Developer lies in experience, project complexity, and industry usage. Senior developers typically handle complex systems and require advanced certifications, while Java Developers may work on simpler projects with less experience. Both roles are in demand across various industries, but the senior position emphasizes leadership and technical expertise.

What is a Contract Senior Java Developer?

A Contract Senior Java Developer is an experienced software engineer who specializes in Java programming and works on a contract basis rather than as a permanent employee. They are typically responsible for designing, developing, and maintaining complex Java applications, often leading technical teams and ensuring code quality. Their contract status means they are hired for specific projects or time frames, providing flexibility to both the developer and the employer. Senior Java Developers usually have several years of experience and a deep understanding of Java frameworks, best practices, and software architecture.

What are some common challenges faced by Contract Senior Java Developers when joining new projects?

Contract Senior Java Developers often encounter challenges such as quickly adapting to unfamiliar codebases, integrating with established development teams, and understanding unique business requirements. Since contracts are typically time-limited, there is pressure to deliver results efficiently while maintaining high code quality. Building rapport with permanent staff and navigating different development processes or toolchains are also common hurdles, but strong communication skills and adaptability can help overcome these challenges.

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

To thrive as a Contract Senior Java Developer, you need advanced proficiency in Java programming, object-oriented design, and experience with frameworks like Spring or Hibernate, typically backed by a bachelor's degree in computer science or related field. Familiarity with version control systems (such as Git), CI/CD pipelines, and cloud platforms like AWS or Azure is often required, along with relevant Java certifications. Strong problem-solving, communication, and time management skills help you effectively collaborate with distributed teams and deliver quality code on tight deadlines. These skills and qualities are crucial for building robust applications, adapting to evolving project requirements, and excelling in fast-paced contract environments.
What are the most commonly searched types of Senior Java Developer jobs in Ontario? The most popular types of Senior Java Developer jobs in Ontario are:
What are popular job titles related to Contract Senior Java Developer jobs in Ontario? For Contract Senior Java Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Contract Senior Java Developer jobs in Ontario look for? The top searched job categories for Contract Senior Java Developer jobs in Ontario are:
What cities in Ontario are hiring for Contract Senior Java Developer jobs? Cities in Ontario with the most Contract Senior Java Developer job openings:
Infographic showing various Contract Senior Java Developer job openings in Ontario as of July 2026, with employment types broken down into 100% Contract. Highlights an 100% In-person job distribution.

Full-time

This job post has expired 1 day ago. Applications are no longer accepted.


Job description

We are seeking a highly skilled and proactive Java Developer with deep expertise in Java, Spring Framework, Kafka, Message Queuing, Dynatrace, and microservices architecture. This role requires a hands‑on developer who will spend approximately 60% of their time coding and actively contributing to the design, development, and deployment of scalable, resilient, and performant distributed systems. The ideal candidate will have a strong background in building and maintaining microservices‑based applications using Java and Spring, experience managing asynchronous messaging infrastructures with Kafka and other Message Queues, and a solid understanding of application performance monitoring using Dynatrace. You will be part of a dynamic team that values innovation, collaboration, and a proactive approach to problem‑solving.

What you will do
  • Design, develop, and maintain microservices using Java and Spring Framework with a strong focus on coding quality and performance.
  • Implement and manage asynchronous messaging solutions leveraging Kafka and other Message Queuing technologies to ensure reliable data flows.
  • Monitor and analyze application performance using Dynatrace to proactively identify and resolve bottlenecks and issues.
  • Collaborate with cross‑functional teams including product management, QA, and DevOps to deliver well‑rounded software solutions.
  • Participate actively in code reviews, pair programming, and knowledge‑sharing sessions to foster a culture of continuous learning and improvement.
What we expect
  • Minimum 7+ years of Java programming and deep knowledge of the Spring Framework ecosystem.
  • Hands‑on experience developing and deploying microservices with a focus on maintainability and scalability.
  • Proven expertise in Kafka and Message Queuing systems, including configuration, tuning, and troubleshooting.
  • Experience with Dynatrace or similar application performance monitoring tools for proactive issue detection.
  • Ability to write clean, efficient, and well‑documented code while following best software engineering practices.

At the company, we're eager to meet people who believe in our mission and can make an impact in various ways. We encourage you to apply if you have most of the skills above and feel like you are strongly suited for this role. Consider what transferable experience and skills make you a unique applicant and help us see how you’d be beneficial to this role. The company will only consider applicants for this position who are legally authorized to work in Canada without requiring employer sponsorship, now or at any time in the future.

Salary and Other Compensation

We regularly assess market data to ensure we offer a competitive compensation package for our associates. The base salary for this position ranges between $ 69,750– $ 110,500 per year. Where the successful candidate may fall within the range depends on relevant education, work and/or management experience and other business‑related and job‑necessary qualifications. This position is also eligible for the company’s discretionary annual performance‑based bonus, as well as benefits that support your physical, mental and financial wellbeing.

Working arrangements

We believe hybrid work is the way forward as we strive to provide flexibility wherever possible. Based on this role’s business requirements, this is a hybrid position requiring 3‑4 days a week in a client office in Toronto, ON. Regardless of your working arrangement, we are here to support a healthy work‑life balance through our various wellbeing programs. The working arrangements for this role are accurate as of the date of posting. This may change based on the project you’re engaged in, as well as business and client requirements. Rest assured; we will always be clear about role expectations.

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