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Junior Computer Science Jobs in Ontario (NOW HIRING)

Vangard, Inc.

Senior AI Scientist

Toronto, ON

You will also mentor junior data scientists and contribute to the growth of our AI safety research ... Bachelor's degree in Computer Science, Statistics, Applied Mathematics, or a related quantitative ...

Waabi

Research Scientist

Toronto, ON

CA$158K - CA$269K/yr

Qualifications: - Masters/PhD degree in Computer Science, AI, Machine Learning, Computer Vision ... junior researchers or engineers. - Proficiency in Pytorch, Rust, C++ and/or CUDA. The US yearly ...

Q-Block Computing

Junior Quantum Engineer

Ottawa, ON · On-site

$85K - $110K/yr

Ottawa, ON (on-site) Employment type: Full-time Salary range: $85,000-$110,000 CAD per year About Q ... The commercialization and the science reinforce each other by design. About this role: The Junior ...

Q-Block Computing

Junior Quantum Engineer

Ottawa, ON · On-site

CA$85K - CA$110K/yr

Ottawa, ON (on-site) Employment type: Full-time Salary range: $85,000$110,000 CAD per year About Q ... The commercialization and the science reinforce each other by design. About this role: The Junior ...

Inizio Engage

Bachelor's degree is required (science/business degree preferred) * 1-3 years of customer facing ... Computer literacy and proficient with Microsoft Office and Outlook * Valid driver's license and in ...

Intact Financial

Senior Data Scientist

Toronto, ON · Hybrid

Coach and mentor junior members of the team * Lead and enforce data science best practices: coding ... Master's degree in a relevant discipline (computer science, mathematics, AI, engineering, or a ...

Evolver

Guide and support junior researchers and engineers to foster technical growth within the team ... D. in Computer Science, Engineering, Neuroscience, Robotics, or a related field. Experience: 5+ ...

Targeted Talent

Compiler Tech Lead

Ottawa, ON · On-site

$170K - $190K/yr

Mentor and guide junior engineers * Evaluate current and proposed hardware architecture for future products Requirements: * MS or PhD in Computer Science, Engineering or related field * 10+ years of ...

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Junior Computer Science information

See Ontario salary details

$21K

$58K

$114.5K

How much do junior computer science jobs pay per year?

As of Aug 11, 2026, the average yearly pay for junior computer science in Ontario is $58,033.00, according to ZipRecruiter salary data. Most workers in this role earn between $38,500.00 and $65,000.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a junior computer scientist?

To thrive as a Junior Computer Scientist, you need a solid understanding of programming languages (such as Python, Java, or C++), algorithms, and data structures, typically supported by a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, basic database management, and exposure to development environments are commonly expected. Strong problem-solving abilities, effective communication, and a willingness to learn are essential soft skills for this role. These skills and qualities enable junior computer scientists to contribute to team projects, adapt to new technologies, and efficiently solve real-world technical problems.

What is the difference between Junior Computer Science vs Junior Software Developer?

AspectJunior Computer ScienceJunior Software Developer
Required CredentialsDegree in Computer Science or related fieldDegree or coding bootcamp certification
Work EnvironmentAcademic, research, or entry-level tech rolesSoftware development teams, tech companies
Industry UsageUniversities, research labs, tech firmsSoftware companies, startups, IT departments
Common Search/ComparisonYesYes

Junior Computer Science roles typically focus on foundational knowledge, research, or academic settings, requiring a degree in computer science. Junior Software Developer positions are more application-oriented, involving coding and software creation within development teams. While both roles are entry-level, they serve different career paths within the tech industry.

What is a junior computer scientist?

A Junior Computer Scientist is an entry-level professional who typically holds a degree in computer science or a related field. They work under the supervision of senior staff to design, develop, test, and maintain software, algorithms, or systems. Their responsibilities may include coding, debugging, conducting research, and assisting with technical documentation. This role is often a starting point for those looking to advance in the field of computer science, offering valuable hands-on experience and opportunities to learn from more experienced colleagues.

What types of projects and responsibilities can a junior computer science professional expect in their first year?

As a Junior Computer Science professional, you can expect to work on a variety of foundational tasks such as debugging code, writing unit tests, and assisting with the development of new features under the supervision of more experienced team members. You may also participate in code reviews, collaborate with cross-functional teams like design and QA, and help maintain documentation. These hands-on experiences are designed to help you build technical skills, understand software development processes, and gradually take on more complex assignments as you gain confidence and expertise.
What are the most commonly searched types of Computer Science jobs in Ontario? The most popular types of Computer Science jobs in Ontario are:
What are popular job titles related to Junior Computer Science jobs in Ontario? For Junior Computer Science jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Junior Computer Science jobs in Ontario look for? The top searched job categories for Junior Computer Science jobs in Ontario are:
Junior Computer Science jobs near you
Infographic showing various Junior Computer Science job openings in Ontario as of August 2026, with employment types broken down into 1% Internship, 1% As Needed, 73% Full Time, 22% Part Time, 2% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $58,033 per year, or $27.9 per hour.

Junior Software Developer (Python)

Squarepoint Capital

London, ON

Full-time

Re-posted 7 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

Apply