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Junior Java Developer Intern Jobs in Ontario (NOW HIRING)

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 ...

Software Developer (Junior)

Kanata, ON · On-site +1

CA$85K - CA$105K/yr

About the Role This position is for a Junior Software Developer to join our API & Applications team, developing multi-language SDK client libraries (Java, Python, C, C#, JavaScript, Go) that power ...

Overview of Intern Quant Researcher Position: * Research and implement strategies within the firm ... Programming proficiency with at least one major programming or scripting language (e.g. C++, Java ...

Junior Pentester

Ottawa, ON · On-site +1

CA$70K - CA$95K/yr

... developers write secure code. You will be a part of the local and global security community and ... Demonstrated software development background in one or more of Python, .NET, Ruby, Java ...

Trend Micro Research Center is seeking a Vulnerability Research Intern to join our industry-leading ... C/C++, Java, Assembly language (any flavor) is a plus * 2 or more of the following programming ...

Lead Software Developer (AOSP)

Waterloo, ON · On-site

CA$140K - CA$170K/yr

Lead a small team of junior developers, providing guidance, conducting design reviews, and ... Expert-level Java and Kotlin. * Android Tools: Strong command of ADB, xTS (diagnosing issues ...

Staff Software Developer, Full Stack

Toronto, ON · Hybrid

CA$164K - CA$222K/yr

The ideal candidate is an experienced Software Developer who is experienced with Java, TypeScript ... Coach and mentor junior engineers on best practices of software engineering, leveraging AI to ...

Mentor junior developers and promote best practices in development, testing, and deployment ... Java * IBM MQ / JMS * SQL * ORM frameworks (IBM pureQuery preferred) Database & Data Skills

Showing results 41-60

Junior Java Developer Intern information

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

AspectJunior Java Developer InternJunior Java Developer
Required CredentialsBasic understanding of Java, coursework, or related internship experienceProven Java skills, possibly some certifications or coursework completed
Work EnvironmentInternship programs, learning-focused, entry-level projectsFull-time role, more responsibility, involved in ongoing projects
Employer & Industry UsageInternship positions in tech companies, startups, or software firmsEntry-level full-time positions in similar industries
Search & Comparison IntentUnderstanding internship differences, entry-level opportunitiesCareer progression, job responsibilities, skill requirements

The main difference between a Junior Java Developer Intern and a Junior Java Developer lies in experience and responsibilities. Interns are typically students or recent graduates gaining practical experience, while Junior Developers are full-time employees with more responsibilities and ongoing projects. Internships serve as a stepping stone toward a full developer role, which requires more skills and commitment.

What does a Junior Java Developer Intern do?

A Junior Java Developer Intern assists in the development, testing, and maintenance of Java-based applications under the supervision of senior developers. Their responsibilities typically include writing simple code, debugging software, participating in team meetings, and learning best practices in software development. The intern gains hands-on experience with Java technologies, tools, and frameworks while contributing to real-world projects. This role is designed to help interns build foundational programming skills and understand the software development lifecycle.

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

To thrive as a Junior Java Developer Intern, you need a solid understanding of Java programming, basic knowledge of object-oriented design, and a relevant degree or coursework in computer science or software engineering. Familiarity with IDEs like Eclipse or IntelliJ IDEA, version control systems such as Git, and introductory experience with build tools like Maven is typical. Strong problem-solving, eagerness to learn, and effective communication skills help interns collaborate and adapt in a team environment. These skills and qualities are important because they enable rapid learning, effective contribution to projects, and smooth integration into development teams.

What types of projects and tasks can I expect to work on as a Junior Java Developer Intern?

As a Junior Java Developer Intern, you can expect to assist in developing, testing, and debugging Java applications under the guidance of senior team members. Your daily tasks may include writing code, fixing bugs, participating in code reviews, and collaborating with other developers and departments such as QA or DevOps. Interns often get exposure to real-world projects that contribute to the organization's products or services, providing valuable experience with tools like version control systems and agile methodologies. This hands-on involvement is designed to help you build both technical and teamwork skills in a professional setting.
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What job categories do people searching Junior Java Developer Intern jobs in Ontario look for? The top searched job categories for Junior Java Developer Intern jobs in Ontario are:
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Infographic showing various Junior Java Developer Intern job openings in Ontario as of August 2026, with employment types broken down into 72% Full Time, 14% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Junior Software Developer

ADGA Group Consultants Inc

Ottawa, ON

Full-time, Part-time

Medical, Dental

Posted 5 days ago


Job description

Company Description

ADGA Group is a Canadian-owned defence and security company that provides integrated, mission-critical technical solutions to Government and industry, specializing in C5ISRT, simulation and training, cyber and infrastructure security, and program delivery. With nearly 60 years of experience, ADGA supports federal clients and Canada’s intelligence and enforcement agencies through embedded teams, advisory services, and full project execution, applying deep operational expertise and innovation to strengthen national safety, resilience, and sovereignty. Guided by a strong social mandate, the company creates meaningful employment for veterans of the CAF and RCMP and other professionals committed to public service, while fostering a safe, inclusive, and agile workplace that supports career development, professional growth, and impactful work across Canada. 

Job Description

REF: 001

At ADGA, our teams support Government and industry partners on projects that protect critical systems and strengthen operational readiness. We are seeking a Junior Software Developer who is eager to learn, grow their technical skills, and contribute to meaningful client projects within secure environments. 

In this role, you will work alongside experienced team members, support the delivery of mission-critical solutions, and have an opportunity to contribute across a variety of projects and initiatives. 

This posting is for an anticipated position expected to commence in October. To accommodate the required security clearance process, we are accepting applications in advance. 

Key Responsibilities:

  • The study of existing PL SQL Code and write PL SQL code to meet requirements of change specifications;
  • The creation, design and debug of C++ and/or PL SQL and/or C# and/or Java Script and/or JSON code to ensure technical performance. 
  • The analysis of the problems outlined by team seniors in terms of such factors as style and extent of information to be transferred to and from storage units, variety of items to be processed, extent of sorting, and format of final printed results; and
  • Any other Junior Software Developer related tasks requested by the Technical Authority (TA) to support operations.
Qualifications
  • Diploma or Degree from an accredited University or College in Computer Science or Information Management, Information Technology, Software Engineering, Computer Science or Computer Programming
  • 1+ year of recent experience developing and testing software applications 
  • Minimum of 6 months of demonstrated combined experience within the past 3 years in:
    • C++ using MS Visual Studio for application development OR SQL for applications development OR Web application design
  • Minimum of 6 months of demonstrated experience developing software within an Agile environment
  • Experience as a software developer working for a large organization supporting HRMS application development and testing will be considered a strong asset

Additional Information
  • Must currently hold or be eligible to obtain and maintain a Canadian Federal Government Reliability Status and a VCR clearance. 
    • If you do not currently hold the required security clearance ADGA can initiate the clearance process on your behalf; however, you will not be eligible for hire until the clearance has been successfully obtained.  
  • This role is full-time on site in Ottawa

If you require accommodations during any stage of the application or interview process, please let us know. We are happy to work with you to meet your needs.

*Our recruitment systems include artificial intelligence–enabled tools; however, AI is not used to screen, evaluate, or make decisions about applicants for this role.

*Unless otherwise stated, all job postings reflect a current vacancy at the time of publication.

Work-Life Balance  

We strongly support a healthy and productive work-life balance. This starts with a flexible approach to work, and policies designed to support employees through their day-to-day routines and major life events. For example, we offer a Maternity/Parental Top-Up (up to 52 weeks) and a Reservist Leave Top-Up (up to 180 days). 

Belong@ADGA  

ADGA continuously strives to integrate advanced Diversity, Equity & Inclusion (DEI) approaches and practices into our work culture. Our employee-based DEI Committee explores activities and invites discussions that foster an environment where all employees feel valued, respected, and heard.

Compensation  

Above and beyond our commitment to offer a competitive base salary, ADGA has a company-wide profit-sharing plan for all full-time and part-time employees.

Comprehensive Benefits and Total Rewards  

We offer a comprehensive benefit program, providing employees with the choice between base or enhanced plans. Depending on the plan, ADGA pays for Health & Dental, a Health Spending Account, Short-Term Disability, an Employee Assistance Program, and a Telemedicine service. Also offered: discounts on gym memberships, 5,000+ perks through Perkoplis, a Deferred Profit Sharing Plan, and access to a wide range of other employee-centric services and savings programs.