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Junior Software Developer Jobs in Ontario (NOW HIRING)

Mentor junior software developers * Author software source code: * Contribute to software requirements, and tests. * Contribute to software development and integration within an agile methodology.

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 ...

Help document software features and perform reviews with team members * Participate in code reviews ... Familiarity with at least one programming language such as Java, JavaScript, Python * Basic ...

As part of our team, you'll be immersed in our development culture, mentored by top-tier software developers who take pride in their code, and work closely with our verification team to deliver high ...

As part of our team, you'll be immersed in our development culture, mentored by top-tier software developers who take pride in their code, and work closely with our verification team to deliver high ...

\n \n \n \n \n A unique and market leading company focused on Agri Tech is searching for 2x Junior or Mid\-Level Software Developers to join their along with there growing development team on a 12 ...

We are looking for a Junior AI Developer to join our in-house team at our Ottawa headquarters. This ... Degree or diploma in Computer Science, AI/ML, Data Science, Software Engineering, or related ...

New

The [Junior Full Stack Developer - coop] role is to help plan, design, develop, test, launch, and ... This includes researching, designing, documenting, and modifying software programs and applications ...

\n \n \n \n \n We are looking for an ambitious Junior C# Software Developer to join a high calibre team of Senior Developers in the West Dublin area. \n \n \n \n \n \n Our client dominate within their ...

\n \n \n \n \n We are looking for an ambitious Junior C# Software Developer to join a high calibre team of Senior Developers in the West Dublin area. \n \n \n \n \n \n Our client dominate within their ...

Collaborates across teams; contributes to project goals and supports junior developers. * Moderate ... Fluent in concurrent software design, integration of 3rd party tools/APIs, CI tools, modern IDEs ...

Software Developer

Mississauga, ON · On-site

CA$100K - CA$125K/yr

Collaborates across teams; contributes to project goals and supports junior developers. * Moderate ... Fluent in concurrent software design, integration of 3rd party tools/APIs, CI tools, modern IDEs ...

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Showing results 1-20

Junior Software Developer information

See Ontario salary details

$30.5K

$66.4K

$102K

How much do junior software developer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for junior software developer in Ontario is $66,373.00, according to ZipRecruiter salary data. Most workers in this role earn between $54,000.00 and $75,500.00 per year, depending on experience, location, and employer.

What are some typical challenges a junior software developer might face when starting out, and how can they overcome them?

Junior Software Developers often encounter challenges such as understanding large codebases, managing their time effectively between learning and delivering tasks, and adapting to new development tools or frameworks. To overcome these hurdles, it's helpful to actively seek guidance from more experienced team members, participate in code reviews, and make consistent use of documentation. Regular communication within the team and a willingness to ask questions can significantly speed up the learning process and help build confidence in your role.

What does a junior software developer do?

A junior software developer works on a development team writing and maintaining code for computer applications. As a junior software developer, your primary responsibilities are to learn the codebase, work on small bug fixes, and participate in paired programming with mid-level and senior developers. Junior software developers are entry-level positions, but as you gain experience and build up your programming skills, you will start to take on larger projects. Your job duties include attending and contributing to development team meetings, troubleshooting, patching computer code, and collaborating with other developers to create applications.

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

To thrive as a Junior Software Developer, you need proficiency in programming languages (such as Python, Java, or JavaScript), algorithms, and problem-solving, often supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, basic knowledge of databases, and experience with development frameworks are valuable technical assets. Strong communication, teamwork, and a willingness to learn help you adapt and contribute effectively in collaborative environments. These skills and qualities are essential for delivering reliable code, supporting team goals, and growing in a fast-evolving tech landscape.

What does a junior software developer do?

A Junior Software Developer is an entry-level professional who assists in designing, coding, testing, and maintaining software applications. They typically work under the supervision of more experienced developers and contribute to various stages of the software development lifecycle. Their responsibilities often include writing basic code, debugging, collaborating with team members, and learning new technologies to improve their skills. This role is a great starting point for individuals looking to build a career in software development.
What are the most commonly searched types of Software Developer jobs in Ontario? The most popular types of Software Developer jobs in Ontario are:
What job categories do people searching Junior Software Developer jobs in Ontario look for? The top searched job categories for Junior Software Developer jobs in Ontario are:
What cities in Ontario are hiring for Junior Software Developer jobs? Cities in Ontario with the most Junior Software Developer job openings:
What are popular job titles related to Junior Software Developer jobs in ON? For Junior Software Developer jobs in ON, the most frequently searched job titles are:
Infographic showing various Junior Software Developer job openings in Ontario as of August 2026, with employment types broken down into 91% Full Time, 6% Part Time, and 3% Contract. Highlights an 88% Physical, 3% Hybrid, and 9% Remote job distribution, with an average salary of $66,373 per year, or $31.9 per hour.

Junior Software Developer

ADGA Group Consultants Inc

Ottawa, ON

Full-time, Part-time

Medical, Dental

Posted 2 days ago

New


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.