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Junior Software Development Jobs in London, ON (NOW HIRING)

Alimentiv

Senior Software QA Tester

London, ON · On-site

... software development lifecycle. As a senior practitioner within the QA team, this role leads process improvement initiatives, mentors more junior testers, and guides the adoption and improvement of ...

Squarepoint Capital

Junior Quant Developer

London, ON · On-site

Up to 4 years of experience in a relevant role such as software or quant development * Proficiency in at least one of Python, C++, or KDB+/q * Strong interest in, or knowledge of finance and the ...

ZTR

Senior Firmware Developer

London, ON

Lead code reviews and collaborate across all phases of the Software Development Life Cycle ... Mentor junior and intermediate developers in best practices and edge computing design Who are you?

ZTR

Senior Firmware Developer

London, ON · On-site

Lead code reviews and collaborate across all phases of the Software Development Life Cycle ... Mentor junior and intermediate developers in best practices and edge computing design Who are you?

ZTR

Senior Firmware Developer

London, ON · On-site

Lead code reviews and collaborate across all phases of the Software Development Life Cycle ... Mentor junior and intermediate developers in best practices and edge computing design Who are you?

CARFAX

Senior Software Engineer

London, ON · On-site

Here's what makes our development environment stand out: Hands-on Learning: Dive into real-world ... Provide guidance and share your expertise with junior and senior team members. * Engage with ...

CARFAX

Senior Software Engineer

London, ON · On-site

CA$92K - CA$136K/yr

Here's what makes our development environment stand out: Hands-on Learning: Dive into real-world ... Provide guidance and share your expertise with junior and senior team members. * Engage with ...

Moralia Inc.

Interior Designer

London, ON · Hybrid

The Role This role is suited to a designer who has moved beyond junior execution and is ready to ... AutoCAD * SketchUp * 3D rendering software (3ds Max, V-Ray, Enscape, or similar) Assets:

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Junior Software Development information

What are some typical challenges faced by junior software developers in their first year, and how can they overcome them?

Junior software developers commonly encounter challenges such as adapting to new codebases, understanding team workflows, and managing task priorities. It can be overwhelming to navigate complex projects or unfamiliar tools, but seeking guidance from senior team members and actively participating in code reviews can help. Proactively asking questions, utilizing company documentation, and setting aside time for continuous learning are effective strategies to overcome these hurdles. Embracing a growth mindset and viewing mistakes as learning opportunities will also contribute to a smoother transition into the role.

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 a solid understanding of programming fundamentals, problem-solving abilities, and a relevant degree or coding bootcamp experience. Familiarity with languages such as Java, Python, or JavaScript, and version control systems like Git, is typically required. Strong communication, teamwork, and a willingness to learn are crucial soft skills for growth in this role. These skills and qualities are essential for delivering effective software solutions, collaborating with team members, and adapting to evolving technologies.

What is a junior software developer?

A Junior Software Developer is an entry-level professional who assists in designing, coding, testing, and maintaining software applications under the supervision of more experienced developers. They typically work as part of a development team, learning best practices and gaining experience with various programming languages and tools. Junior developers are responsible for writing basic code, fixing bugs, and participating in code reviews while building their technical skills and knowledge of software development processes.

What is the difference between Junior Software Development vs Junior Web Developer?

AspectJunior Software DevelopmentJunior Web Developer
Required SkillsProgramming languages, software design, debuggingHTML, CSS, JavaScript, basic backend knowledge
Work EnvironmentSoftware companies, tech startups, IT departmentsWeb agencies, tech companies, freelance projects
CertificationsComputer Science degree, coding bootcampsWeb development courses, certifications like HTML, CSS
Common UsageDeveloping software applications, systemsBuilding websites, web applications

Junior Software Development and Junior Web Developer roles share foundational programming skills and often require similar certifications. However, Junior Software Developers typically work on broader software projects across various platforms, while Junior Web Developers focus specifically on website and web application development. Both roles are common entry points in the tech industry, with overlapping skills but different specialization areas.

What are the most commonly searched types of Software Development jobs in London, ON? The most popular types of Software Development jobs in London, ON are:
What cities near London, ON are hiring for Junior Software Development jobs? Cities near London, ON with the most Junior Software Development job openings:
Junior Software Development jobs near you
Infographic showing various Junior Software Development job openings in London, ON as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution.

Junior Software Developer (Python)

Squarepoint Capital

London, ON

Full-time

Re-posted 6 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