1

Contract Senior Java Developer Jobs in Ontario (NOW HIRING)

\n \n \n \n \n Senior Java Developer required for a Cybersecurity organisation in Dublin, working alongside a talented team building out a product that they see as an industry game changer. \n \n \n ...

\n \n \n \n \n Brand new Day Rate Contract just in with one of our strongest Financial Services ... You will work on a high performing team of Senior Java Developers where you will be joining the ...

Job Title: Sr. Java Developer - Capital Markets Job Location: Toronto, ON (Hybrid - 2 days/week onsite) Position: 1 Employment Type: FTE Key Technologies: Java, SQL Overview Senior Java Developer ...

New

CA$94K - CA$141K/yr

Senior Java Developer - Wholesale Credit Risk Technology Citi is seeking a highly motivated candidate for Senior Java developer in Wholesale Credit Risk Technology team that serves Institutional ...

New

\n \n \n \n \n Our client in Galway are beginning to hire Java Engineers (up to senior level) to help the team build out their globally renowned and ever\-present SAAS offering on a permanent basis.

Elevate your career as a Senior Java Developer in Toronto, Ontario, where your expertise in Java and cloud technology will shine. Focus on microservices development and enhancing trade applications ...

New

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin. You will be joining a rapidly expanding team who are working on the most cutting edge products. \n \n ...

Transform your skills as a Senior Java Developer in a hybrid role based in Toronto, leveraging over ... This contract lasts six months, offering a chance for growth. This position, located at 44 King St ...

New

\n \n \n \n \n We have a contract position available for a Java developer within a rapidly growing global team. You will be responsible for the design and development of the company's platform and ...

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 ... Senior Java Developers to join our team on a 1-year fixed term. As a Java Developer at Deloitte ...

\n \n \n \n \n We are looking for an experienced Java Developer for a contract position in Dublin. You will be working as part of an agile team to deliver the highest quality solutions! \n \n \n \n \n ...

Dublin\/ Galway - Remote\/WFH \n * Long Term Contract \n * Negotiable Day Rate \n Leading Fintech\/ Financial Services organisation is looking for a number of experienced Senior Java Engineers to ...

\n \n \n \n \n Are you a Senior Java Developer with extensive cloud experience looking for your next challenge? Do you have Microservices and TDD? Are you interesting in working in the banking sector?

Senior Java Developer

Toronto, ON · Hybrid

CA$64K - CA$106K/yr

As a Senior Java Developer, you will be responsible for designing, building, and maintaining robust, scalable, enterprise-grade backend systems. Specifically, you will become a key contributor in ...

Senior Java Developer

Toronto, ON · Hybrid

CA$106K/yr

As a Senior Java Developer, you will be responsible for designing, building, and maintaining robust, scalable, enterprise-grade backend systems. Specifically, you will become a key contributor in ...

Senior Java Developer

Toronto, ON · Hybrid

CA$106K/yr

As a Senior Java Developer, you will be responsible for designing, building, and maintaining robust, scalable, enterprise-grade backend systems. Specifically, you will become a key contributor in ...

A Java Developer designs, develops, tests, and maintains scalable Java-based applications (web, enterprise, mobile) by writing clean code, collaborating with teams, and integrating with databases and ...

Experience: 5+ years in Sr. Java backend developer role. * Professional level of proficiency on the following Technologies: * Application design with resiliency * Java 21 and up, Spring boot 4 * ...

next page

Showing results 1-20

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

Posted 7 days ago


Job description

\n <\/head>\n \n \n
\n Senior Java Developer required for a Cybersecurity organisation in Dublin, working alongside a talented team building out a product that they see as an industry game changer.<\/span>
\n <\/div>\n
\n
\n <\/div>\n
\n This will likely progress into a team leadership role (but doesn't necessarily have to) and will be ideal for an ambitious, technically minded engineer who wants to work with some of the newest tech available.<\/span>
\n <\/div>\n
\n
\n <\/div>\n
\n This is a backend Microservices development role with scope to get involved in some Ops work.<\/span>
\n <\/div>\n
\n
\n <\/div>\n
\n There are lots of nice benefits on offer (including a 15% bonus) and there will be remote interviews and onboarding.<\/span>
\n <\/div>\n
\n
\n <\/div>\n
\n Experience
<\/u><\/b>\n <\/div>\n
    \n
  • 6+ years' Software Engineering experience
    <\/li>\n
  • Experience at all stages of the SDLC
    <\/li>\n
  • Extensive experience working with a Java\/Spring stack
    <\/li>\n
  • Solid DevOps exposure would be nice to have
    <\/li>\n
  • React experience would be a plus
    <\/li>\n <\/ul>\n
    \n
    \n <\/div><\/span>
    \n <\/body>\n<\/html>