1

Graduate Junior Software Developer Jobs in Ontario

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 ...

\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 ...

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 ...

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 ...

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 ...

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 ...

next page

Showing results 1-20

Graduate Junior Software Developer information

See Ontario salary details

$25.5K

$75.8K

$141K

How much do graduate junior software developer jobs pay per year?

As of Jul 29, 2026, the average yearly pay for graduate junior software developer in Ontario is $75,778.00, according to ZipRecruiter salary data. Most workers in this role earn between $53,000.00 and $91,500.00 per year, depending on experience, location, and employer.

What are Graduate Junior Software Developers?

Graduate Junior Software Developers are entry-level professionals who have recently completed their university degrees, typically in computer science or a related field. They are responsible for assisting in the design, development, testing, and maintenance of software applications under the guidance of more experienced developers. This role is designed to help new graduates build practical experience, learn industry best practices, and develop their coding and problem-solving skills in a professional environment.

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

To thrive as a Graduate Junior Software Developer, you need a solid understanding of programming languages (such as Java, Python, or C#), problem-solving skills, and a relevant degree in computer science or a related field. Familiarity with version control systems like Git, basic knowledge of databases, and exposure to IDEs and development frameworks are typically required. Strong attention to detail, eagerness to learn, and effective collaboration set exceptional candidates apart. These skills and qualities are essential for building reliable software, adapting to evolving technologies, and contributing positively to a development team.

What types of projects can a Graduate Junior Software Developer expect to work on during their first year?

As a Graduate Junior Software Developer, you’ll typically start by supporting senior developers on existing projects, such as fixing bugs, writing unit tests, and implementing small features. Over time, you may be assigned to work on new development projects, collaborate on code reviews, and assist in designing software solutions. These tasks help you become familiar with the company’s technology stack, coding standards, and development processes, while also providing opportunities to learn from more experienced team members.
What are popular job titles related to Graduate Junior Software Developer jobs in Ontario? For Graduate Junior Software Developer jobs in Ontario, the most frequently searched job titles are:
What cities in Ontario are hiring for Graduate Junior Software Developer jobs? Cities in Ontario with the most Graduate Junior Software Developer job openings:
Infographic showing various Graduate Junior Software Developer job openings in Ontario as of July 2026, with employment types broken down into 82% Full Time, 6% Part Time, 1% Temporary, and 11% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $75,778 per year, or $36.4 per hour.
Junior Software Developer (Python)

Junior Software Developer (Python)

Squarepoint Capital

London, ON

Other

Posted 23 days ago


Job description

Please only apply to the one job you feel best fits your skillset and experience. If our team feels you are better suited for another role, we will reach out about the alternate opportunity.

Position Overview:

At Squarepoint we use Python to build a great deal of the software needed to solve crucial problems every day. You will work on a wide range of systems that fuel our trading success including, but not limited to, core tooling and frameworks, data pipelines used to feed predictive models in research and trading, and software products used worldwide by traders and researchers.

You will collaborate with experienced software developers and quant researchers to enable the continued growth of our investment business, solving problems at scale, and gaining a unique chance to learn from some of the most talented individuals in the industry.

Required Qualifications 

  • Degree in Computer Science, Computer Engineering, Applied Math, Physics, Quantitative Finance, or Financial Engineering/MFE
  • Up to 4 years experience in a relevant role such as software or quant development, or similar
  • Experience with Python, git, and Linux
  • Excellent written and verbal communication skills
  • Eagerness to continuously learn new technologies and develop with us
  • Ability to work well in a fast-paced environment

Nice to Have:

  • Experience with any of C++, Rust, KDB+/q, JavaScript/TypeScript/React
  • Experience with database management systems and related technologies such as SQL
  • Experience working in an investment or financial business is useful