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Contract Senior Java Developer Jobs in Ontario (NOW HIRING)

StackandCo

... Senior Software Engineer vacancy. \n \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 \n

StackandCo

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

Citi

Senior Java Developer - Vice President

Mississauga, ON · On-site

CA$120K - CA$170K/yr

We are seeking a highly skilled and experienced Senior Java Engineer to join our dynamic team. The ideal candidate will be a hands-on developer with leadership quality, proficient in modern Java ...

Infoya

CA$80K - CA$100K/yr

We are looking for an experienced Java Developer to design, build, and maintain robust, scalable, and high-performance applications. This role focuses on developing modern e-commerce and enterprise ...

Citi

Senior Java Developer, Vice President

Mississauga, ON · On-site

CA$120K - CA$170K/yr

We're currently looking for a high caliber professional to join our team as Senior Java Developer, Vice President. Cross Asset Margin technology teams actively develop and enhance set of strategic ...

StackandCo

... 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 \n This is ideal for someone who enjoys mentoring engineers ...

Citi

Senior Java Developer - Vice President

Mississauga, ON · On-site

CA$120K - CA$170K/yr

We are seeking a talented and passionate Senior Developer to join our Operations Workbench Scrum ... Utilize a modern tech stack, including Java, Kubernetes, Docker, and Kafka, to build cutting-edge ...

StackandCo

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

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Contract Senior Java Developer information

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 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 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:

Contract Senior Java Developer jobs near you
Infographic showing various Contract Senior Java Developer job openings in Ontario as of September 2026, with employment types broken down into 93% Full Time, and 7% Contract. Highlights an 52% In-person, 31% Hybrid, and 17% Remote job distribution.

Senior Java Developer (Microservices)

On-site

StackandCo
See more jobs at StackandCoexternal

Full-time

Medical, Retirement

Re-posted 8 days ago

Job description

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\n We are working with an industry world leader and very highly\-regarded technical team in Dublin City Centre on a Senior Software Engineer vacancy.<\/span>\n
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\n This is a nice opportunity to join a talented team developing new microservices and building applications for millions of users worldwide. We need someone who can contribute at a high level and have an instant impact at all stages of the SDLC.<\/span>\n
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\n They are perfectly located for transport (train\/luas\/bus) links and are offering a very generous package, including bonus, medical insurance, pension, travel discounts, flexibility etc.<\/span>\n
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\n Requirements<\/u><\/b>\n
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  • Highly skilled Software Engineer, ideally 7+ years' experience primarily in Java (flexible)\n
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  • Experienced delivering software\/applications from start\-finish\n
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  • Ability to understand and contribute to architectural discussions\n
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  • Extensive experience in development of Microservices\n
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  • Spring Boot experience\n
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  • Experience building server\-side applications and systems at scale\n
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  • Scala experience would be great\n
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  • Containers and Cloud experience would be a big plus (Kubernetes, AWS etc)\n
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    \n <\/div>\n <\/span>\n
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