Java Developer Jobs in Ontario (NOW HIRING)

Senior Java Developer

Waterloo, ON · Remote

\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 ...

Senior Java Developer

Waterloo, ON · Remote

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Senior Java Developer

Waterloo, ON · Remote

Senior Java Developer

Kitchener, ON · Remote

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Senior Java Developer

Kitchener, ON · Remote

Senior Java Developer

Ottawa, ON · Remote

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Senior Java Developer

Ottawa, ON · Remote

... 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 engineers, enjoys ...

Senior Java Developer

Galway, NY · On-site

\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

Galway, NY · On-site

Senior Java Developer

Ottawa, ON · Remote

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Senior Java Developer

Ottawa, ON · Remote

There will be multiple tech hires happening in the coming months so it is an exciting time to come onboard. \n \n \n \n \n \n Experience \n \n \n * 3+ years' experience as a Software Developer (Java ...

\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 ...

Senior Java developer

We are seeking a senior Java developer to join our team in a full-time employment capacity. This role requires expertise in Java-based systems, along with experience in audio codec integration, VOIP ...

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Senior Java developer

Senior Java developer

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Senior Java developer

\n \n \n \n \n We are searching for a Senior Java Developer to join a large organisation in the Dublin area. \n \n \n \n \n \n This is a unique opportunity to work with some of the newest tech on the ...

\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 Cloud Developer (Java) Contract \- 450\-475 Per Day \- 6 month Contract with Long term potential Duration: 6 Months Rolling Day Rate Contract ( extensions highly likely) \n \n \n \n \n ...

\n \n \n \n \n Full Stack Java Developer (Java\/JavaScript\/ReactJS) \- 520 per day \- 12 month contract \- Long term project with multinational Financial Services client Duration: 12 Months Rolling ...

\n \n \n \n \n Are you a Full Stack Java Developer with strong Spring and SQL experience? Do you have experience working with ReactJS? Are you looking for your next contract? Then look no further as ...

... Java Developers where you will be joining the newly formed Cloud Transformation team. There are many Cloud Architects across the team who you will be working closely with along with other Senior ...

Java Developer Jobs in Ontario

Poly Services Group

Senior Java Developer

Toronto, ON · On-site

SENIOR JAVA SOFTWARE DEVELOPER Location: Toronto, ON (uptown) Industry: Technology Type: Permanent WHAT IS THE OPPORTUNITY. Our client is an 18-year-old SaaS developer and recognized leader of ...

Poly Services Group

Senior Java Developer

Toronto, ON · On-site

Showing results 21-40

Java Developer information

What is a Java developer?

Java Developers are software professionals who specialize in designing, developing, and maintaining applications using the Java programming language. They work on a variety of projects, including web, desktop, and mobile applications, as well as enterprise-level systems. Java Developers are responsible for writing clean and efficient code, testing and debugging programs, and collaborating with other team members to deliver robust software solutions. Their expertise in Java and related technologies is crucial for building scalable and secure applications.

What do Java developers do?

Java developers create dynamic computer applications and websites using the Java computer programming language. The Java language integrates with other programming languages and infrastructures to build robust business applications and software for a wide range of industries, from finance and healthcare to content management and social media. Java developers may be involved in all stages of application development, from conception and design to testing, production, and ongoing maintenance. The goal is to provide efficient solutions for business needs.

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

To thrive as a Java Developer, you need strong proficiency in Java programming, object-oriented design, and a solid understanding of software development principles, usually supported by a degree in computer science or related fields. Familiarity with frameworks such as Spring or Hibernate, experience with version control systems like Git, and sometimes certification like Oracle Certified Professional Java Programmer (OCPJP) are commonly required. Effective problem-solving, teamwork, and attention to detail are crucial soft skills in this role. These skills ensure robust, maintainable, and scalable software solutions that meet project requirements and business goals.

What are some common challenges Java developers face when working on large-scale enterprise applications?

Java Developers working on large-scale enterprise applications often encounter challenges such as managing complex codebases, ensuring efficient performance, and integrating with legacy systems. Collaborating with cross-functional teams is crucial, as these projects typically involve multiple developers, QA engineers, and business analysts. Additionally, maintaining code quality and adhering to best practices while meeting tight deadlines can be demanding. Staying up-to-date with evolving frameworks and tools also plays a key role in overcoming these challenges.

What is the difference between Java Developer vs Software Engineer?

Aspect	Java Developer	Software Engineer
Required Credentials	Bachelor's in Computer Science or related, Java certifications	Bachelor's in Computer Science or related, various certifications
Work Environment	Develops Java-based applications, often in teams	Designs and develops software solutions, may include Java projects
Employer & Industry Usage	Tech companies, finance, e-commerce	Broad industry, including tech, finance, healthcare

Java Developers focus specifically on Java programming, while Software Engineers have a broader role in designing and developing software solutions across multiple languages. Both roles often require similar educational backgrounds and certifications, but Java Developers typically work more directly with Java-based projects, whereas Software Engineers may handle diverse technologies.

Is a Java developer still in demand?

Java developers remain in high demand due to the language's widespread use in enterprise applications, Android development, and backend systems. Skills in frameworks like Spring and knowledge of cloud platforms can enhance job prospects in this field.

More about Java Developer jobs

What are the most commonly searched types of Java Developer jobs in Ontario?

The most popular types of Java Developer jobs in Ontario are:

What are popular job titles related to Java Developer jobs in Ontario?

For Java Developer jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Java Developer jobs in Ontario look for?

The top searched job categories for Java Developer jobs in Ontario are:

What cities in Ontario are hiring for Java Developer jobs?

Cities in Ontario with the most Java Developer job openings:

What are popular job titles related to Java Developer jobs in ON?

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

Java Developer jobs near you

Infographic showing various Java Developer job openings in Ontario as of August 2026, with employment types broken down into 75% Full Time, 12% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Senior Java Developer