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Internship Java Developer Jobs in Ontario (NOW HIRING)

Software Developer

Toronto, ON · On-site

CA$97K - CA$100K/yr

Backend: Node.js, TypeScript, PHP, Java * Frontend: Angular, Vue.js, React * Databases: MySQL ... Experience mentoring junior developers or interns. Perks: * Generous wellness program * Best-in-the ...

You have experience through academic projects, internships, co-op placements, or professional experience using programming languages such as TypeScript, JavaScript, Java, Python, or C#, and are eager ...

New

Java What You'll Do: * Develop and maintain responsive web applications using ReactJS * Build and ... CI/CD practices and DevOps concepts Beyond technical skills, we value individuals who: * Take ...

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Internship Java Developer information

What are the qualifications to get a Java developer internship?

The qualifications to become a Java developer intern include that you are pursuing at least a bachelor’s degree in engineering, computer science, or a similar degree. Experience working with different computer languages is beneficial when you are applying for positions. Having some experience with the following can be helpful: C#, NET, HTML5, Java, VB, SQL, MVC, or data analytics. Strong communication skills can help you to stand out above other applicants. Experience with Java development, Spring Framework, and relational databases can also help you applying for a Java developer internship.

What is an internship Java developer?

Internship Java Developers are students or recent graduates who work in a company to gain practical experience in Java programming. They assist in developing, testing, and maintaining Java applications under the supervision of experienced developers. This role helps interns apply their academic knowledge to real-world projects, learn industry best practices, and improve their coding and teamwork skills. Internships often serve as a valuable stepping stone to full-time software development positions.

What kinds of projects and tasks can an internship Java developer expect to work on during their internship?

As an Internship Java Developer, you can expect to work on a variety of projects that help you build practical skills, such as developing new features, fixing bugs, writing unit tests, or assisting with code reviews. You’ll likely collaborate closely with experienced developers and participate in team meetings or agile sprints, which provide valuable exposure to real-world software development processes. Projects may range from maintaining existing applications to contributing to new product development, giving you a well-rounded experience in Java programming. This role is designed to help you learn industry best practices and gain hands-on experience while receiving mentorship and feedback from your team.

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

To thrive as an Internship Java Developer, you need a solid understanding of Java programming, object-oriented principles, and basic software development concepts, often supported by coursework or personal projects. Familiarity with version control systems like Git, integrated development environments (IDEs) such as Eclipse or IntelliJ IDEA, and basic knowledge of databases are typically required. Strong problem-solving skills, eagerness to learn, and effective communication help interns adapt and contribute within development teams. These competencies enable you to quickly integrate into projects, support code quality, and grow professionally in a fast-paced environment.

What is the difference between Internship Java Developer vs Junior Java Developer?

AspectInternship Java DeveloperJunior Java Developer
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldBachelor's degree in Computer Science or related field, with some practical experience
Work EnvironmentTraining-focused, supervised environment, often part-time or temporaryFull-time, ongoing employment with more responsibilities
Employer & Industry UsageInternships offered by tech companies, startups, and IT departments for skill developmentEntry-level position in software development teams across various industries

The main difference between an Internship Java Developer and a Junior Java Developer is experience and responsibility. Internships are designed for students or recent graduates gaining initial exposure, while Junior Java Developers have more hands-on work experience and are expected to contribute more independently to projects.

More about Internship 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 cities in Ontario are hiring for Internship Java Developer jobs?

Cities in Ontario with the most Internship Java Developer job openings:

Infographic showing various Internship Java Developer job openings in Ontario as of August 2026, with employment types broken down into 6% Internship, 67% Full Time, 25% Part Time, and 2% Contract. Highlights an 88% Physical, 1% Hybrid, and 11% Remote job distribution.

Full-time

Re-posted 14 days ago


Job description

We're seeking highly motivated students who possess strong technical skills and the ability to work in a fast-paced collaborative environment.

Internship opportunities are not limited to the summer and are available throughout the year.

Primary Responsibilities:

  • Develop new software and enhance existing systems.
  • Create tools to process, store and analyze quote, trade and financial data.
  • Work closely with our traders, quantitative research analysts, implementation programmers and other groups to provide software solutions.

Requirements of the Candidate include:

  • Pursuing an undergraduate or graduate level degree in Computer Science or Mathematics.
  • C++ and/or Java programming knowledge or experience in a Linux environment preferred.
  • Excellent academic record.
  • Strong problem solving skills.
  • Knowledge of shell scripts and other languages including Perl, Bash or CSH is a plus.
  • Knowledge of relational databases including Sybase, SQL Server and Oracle is a plus.