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Java Internship Jobs in Mississauga, ON (NOW HIRING)

Ritchie Bros.

Software Engineer

Mississauga, ON

In C#, .NET, Java, React JS, TypeScript, RESTful APIs based on design specifications. * For SQL and ... internships, personal projects, or academic projects are highly valued). * Technical Skills ...

Autodesk

Software Developer

Toronto, ON · On-site

CA$72K - CA$105K/yr

Proficiency in at least one programming language such as Java, Python, or Go * Familiarity with ... Internship, research, or significant project experience in backend development or cloud services

RSM

Offensive Security - Penetration Tester

Toronto, ON · On-site

CA$62K - CA$107K/yr

Familiarity with development technologies like Docker, CDK, Terraform, Java, Python, React, GraphQL ... The salary range (or starting rate for interns and associates) for this role represents numerous ...

Randstad Canada

Cloud/AI Platform Engineer

Toronto, ON · On-site

CA$75K - CA$141K/yr

Java * C# * Understanding of software engineering fundamentals, including: * Data structures and ... internships. * Experience with containers and orchestration technologies such as Docker and ...

New

NimbleRx

Senior Backend Engineer

Toronto, ON

Mentor junior engineers and interns * Promote best practices and high-quality development ... Rich development experience with Java, Spring, and SQL * Experience developing scalable, customer ...

Royal Bank of Canada

Software Developer

Toronto, ON · On-site

... including internships, co-op placements, academic projects, or equivalent practical experience ... Hands-on experience with Python, Golang, Java, or similar programming languages * Familiarity with ...

Lifeworks

Jr. Quality Assurance Analyst

Toronto, ON · On-site +1

CA$50K - CA$60K/yr

What You bring * 1 year of Quality Assurance experience (or equivalent through internships/co-ops ... Selenium and Java scripting experience - Experience with test automation (maintaining existing ...

NimbleRx

Senior Fullstack Engineer

Toronto, ON

Mentor junior engineers and interns * Promote best practices and high-quality development ... Rich development experience with Java / Spring Boot, React, ECMAScript standard and SQL (MySQL)

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All JobsJava JobsJava Internship JobsJava Internship Jobs in Mississauga, ON

Java Internship information

What is a Java internship?

A Java Internship is a temporary position, usually aimed at students or recent graduates, that provides hands-on experience working with Java programming in a real-world environment. Interns typically assist with software development tasks, bug fixing, and sometimes participate in designing and testing Java applications. This role helps individuals gain practical skills, industry knowledge, and professional networking opportunities that can aid in securing a full-time job in software development.

What types of projects do Java interns typically work on, and how do these projects support their learning and professional growth?

Java interns are often assigned to real-world projects such as developing web applications, enhancing existing codebases, or automating testing processes. These projects are designed to provide hands-on experience with Java frameworks like Spring or Hibernate, version control systems, and collaborative development tools. Interns usually work closely with experienced developers, participate in code reviews, and attend team meetings, which helps them gain valuable feedback and understand industry best practices. This environment not only sharpens their technical skills but also exposes them to effective teamwork and agile development methodologies, setting a strong foundation for future career opportunities.

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

To thrive as a Java Intern, you need a solid understanding of Java programming, basic knowledge of object-oriented principles, and enrollment in or completion of a computer science or related degree. Familiarity with IDEs like Eclipse or IntelliJ IDEA, version control systems such as Git, and basic database concepts is often expected. Strong problem-solving skills, eagerness to learn, and effective communication set exceptional interns apart. These skills and qualities enable interns to contribute meaningfully to projects, adapt to team workflows, and accelerate their professional growth.

What is the difference between Java Internship vs Java Developer?

AspectJava InternshipJava Developer
Required CredentialsTypically pursuing or recently completed a degree in Computer Science or related fieldBachelor's degree in Computer Science or related, often with certifications
Work EnvironmentEntry-level, training-focused, often part-time or temporaryFull-time, professional development, project-based
Employer & Industry UsageInternships offered by tech companies, startups, and organizations for trainingFull-time roles in software development companies, IT departments, or tech firms
Common Search & Comparison IntentUnderstanding entry points into Java developmentSeeking full-time Java development roles

In summary, a Java Internship is an entry-level, training-focused position designed for students or recent graduates to gain practical experience. A Java Developer is a full-time professional role requiring more experience and responsibility in developing Java applications.

Is Java still in demand?

Java remains a highly in-demand skill for software development, especially in enterprise applications, Android app development, and backend systems. Many companies seek Java developers with knowledge of frameworks like Spring and experience with cloud environments, ensuring ongoing job opportunities for Java interns and professionals.

What does a Java internship do?

A Java internship involves assisting with software development using Java programming language, often including tasks like coding, debugging, and testing applications. Interns gain experience with development tools, collaborate with teams, and improve their programming skills in a real-world environment.

What are the most commonly searched types of Java jobs in Mississauga, ON?

The most popular types of Java jobs in Mississauga, ON are:

What cities near Mississauga, ON are hiring for Java Internship jobs?

Cities near Mississauga, ON with the most Java Internship job openings:

Java Internship jobs near you
Infographic showing various Java Internship job openings in Mississauga, ON as of August 2026, with employment types broken down into 8% Internship, 59% Full Time, 30% Part Time, 1% Temporary, and 2% Contract. Highlights an 77% Physical, 2% Hybrid, and 21% Remote job distribution.

Software Engineer

Ritchie Bros.

Mississauga, ON

Full-time

Re-posted 5 days ago

Ritchie Bros. Auctioneers rating

7.5

Company rating: 7.5 out of 10

Based on 26 frontline employees who took The Breakroom Quiz

5th of 19 rated auctioneers

Job description

About the Role:

We are looking for an enthusiastic and motivated software engineer to join our marketplace teams. This is an excellent opportunity for someone early in their career who is eager to learn and contribute to building robust and efficient software systems. You will work closely with senior engineers to develop and maintain applications. We believe in fostering a culture of continuous learning, automation, and collaboration, and you'll actively participate in that mission.

Responsibilities:

  • Software Development: 
    • Write clean, well-tested, and maintainable code 
      • In C#, .NET, Java, React JS, TypeScript, RESTful APIs based on design specifications.
      • For SQL and NoSQL databases such as PostgreSQL, Azure SQL, Azure CosmosDB, Azure Storage Blob
    • Participate in code reviews, follow engineering standards, and use GitHub + GitHub Copilot effectively (with good judgment and review discipline)
    • Write unit tests and help improve test coverage and overall code quality
    • Assist in debugging and resolving software defects and issues.
    • Continuously explore and adopt AI tools and frameworks
    • Support application portfolio for "level 3" incidents as necessary
  • Collaboration & Learning: 
    • Collaborate effectively with team members, product managers, and other stakeholders.
    • Actively participate in team meetings, stand-ups, and discussions.
    • Proactively seek out learning opportunities, staying up-to-date with new technologies and industry best practices.
    • Ask questions, learn from senior engineers, and contribute to a positive team environment.

Qualifications:

  • Education/Experience: 
    • Bachelor's degree in Computer Science, Software Engineering, or a related field, OR equivalent practical experience/coding bootcamp completion.
    • 3-6 years of professional software development experience (internships, personal projects, or academic projects are highly valued).
  • Technical Skills (Foundational): 
    • Foundational understanding of OOP, Asynchronous programming 
    • Foundational understanding of at least one modern programming language (e.g. .NET, React JS, JavaScript/TypeScript).
    • Familiarity with RESTful APIs and Microservices
    • Familiarity with version control systems (e.g. ADO, GitHub).
    • Basic understanding of command-line tools and Linux environments.
    • An eagerness to learn about cloud platforms (AWS, Azure), containers (Docker, Kubernetes), and CI/CD concepts.
    • Working knowledge of authentication concepts (OAuth2, JWT) and SSO 
  • Skills & Attributes: 
    • Strong problem-solving skills with a curious and analytical mindset.
    • Excellent communication skills, both written and verbal.
    • Highly motivated, self-starter, and eager to learn new technologies and concepts quickly.
    • Ability to work effectively both independently and as part of a team.
    • Detail-oriented with a commitment to writing high-quality code.

Bonus Points:

  • Any exposure to cloud platforms (AWS, Azure) or containerization (Docker, Kubernetes).
  • Experience with scripting languages (e.g., Bash, Python).
  • Completed personal projects demonstrating your coding abilities.
  • Contributions to open-source projects.
  • Participation in hackathons or coding challenges.
 IAA Holdings, LLC (IAA)

IAA Holdings, LLC (IAA), a Ritchie Bros. Auctioneers company (NYSE: RBA) and (TSX: RBA), is a trusted global marketplace for insights, services, and transaction solutions for commercial assets and vehicles. Leveraging leading-edge technology and focusing on innovation, IAA's unique platform facilitates the marketing and sale of total-loss, damaged and low-value vehicles. IAA serves a global buyer base - located throughout over 170 countries - and a full spectrum of sellers, including insurers, dealerships, fleet lease and rental car companies, and charitable organizations. Buyers have access to multiple digital bidding and buying channels, innovative vehicle merchandising, and efficient evaluation services, enhancing the overall purchasing experience. IAA offers sellers a comprehensive suite of services aimed at maximizing vehicle value, reducing administrative costs, shortening selling cycle time and delivering the highest economic returns.

What Ritchie Bros. Auctioneers employees say

Pay

Benefits

Hours and flexibility

Workplace

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