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Junior Full Stack Developer Jobs in London, ON (NOW HIRING)

STACK IT Recruitment

Senior Network Engineer

London, ON · Hybrid

CA$100K - CA$120K/yr

Experience mentoring junior engineers or providing technical leadership within an MSP environment ... At STACK IT Recruitment, we connect top talent with standout opportunities. If you meet at least 70 ...

Proton

Senior .NET Developer (Desktop/SDK)

London, ON · On-site

While this position is not a "full-stack" position, you will be expected to collaborate with backend engineers to drive any necessary changes and/or new features needed for the core of our desktop ...

CARFAX

Senior Software Engineer - Dev Ops

London, ON · On-site

AI Developer Platform -- Own and contribute to the architecture and operations of interactive ... Observability & Reliability -- Contribute to the full observability stack implementation ...

CARFAX

Senior Software Engineer - Dev Ops

London, ON · On-site

AI Developer Platform -- Own and contribute to the architecture and operations of interactive ... Observability & Reliability -- Contribute to the full observability stack implementation ...

STACK IT Recruitment

Senior Network Engineer

London, ON · On-site

CA$100K - CA$120K/yr

Experience mentoring junior engineers or providing technical leadership within an MSP environment ... At STACK IT Recruitment, we connect top talent with standout opportunities. If you meet at least 70 ...

CARFAX

Senior Software Engineer - Dev Ops

London, ON · On-site

AI Developer Platform - Own and contribute to the architecture and operations of interactive ... Observability & Reliability - Contribute to the full observability stack implementation - designing ...

Wood Plc

Junior Cultural Heritage Technician

London, ON · On-site

Overview / Responsibilities Wood is currently seeking a Junior Cultural Heritage Technician to join ... engineering, consulting and project management services. Our team of professionals offers a full ...

ALS

Mining Process Engineer

London, ON · Hybrid

CA$115K - CA$135K/yr

Working across the full control stack, from field instrumentation and PLCs to SCADA, advanced process control (APC), and data historian systems. This role combines hands-on programming with real ...

Proton

Senior Foundation Engineer (Drive)

London, ON

... Stack and Tools: * Languages we see daily is C#, TypeScript and Rust. We also need to provide ... Then we will do second generation in Rust with lessons learned and include full support of all ...

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Showing results 21-40

All JobsFull Stack Developer JobsJunior Full Stack Developer JobsJunior Full Stack Developer Jobs in London, ON

Junior Full Stack Developer information

See London, ON salary details

$27.2K

$63.6K

$103.1K

How much do junior full stack developer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for junior full stack developer in London, ON is $63,614.00, according to ZipRecruiter salary data. Most workers in this role earn between $50,926.00 and $72,074.00 per year, depending on experience, location, and employer.

What is a junior full stack developer?

A Junior Full Stack Developer is an entry-level software engineer who is capable of working on both the front-end and back-end components of web applications. They typically have foundational knowledge of programming languages such as JavaScript, HTML, CSS, as well as experience with frameworks like React, Node.js, or similar technologies. Junior Full Stack Developers collaborate with more experienced developers to build, test, and maintain web applications. Their responsibilities often include writing code, debugging, and learning best practices under supervision. This role is ideal for individuals looking to grow their skills in all areas of web development.

What does a junior full stack developer do?

A full stack developer works on both the user-facing and back-end elements of websites and applications. A junior full stack developer works under the supervision of a senior developer. In this position, your duties include handling coding responsibilities for front-end, user-facing elements. You use JavaScript, HTML, and CSS for this part of the job. You also use languages such as Python, SQL, and PHP for the back-end system of a website, including the database, cloud network, and security features. In addition to coding, you test and debug your developments and work with other team members using development strategies and methodologies.

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

To thrive as a Junior Full Stack Developer, you need a solid understanding of front-end and back-end programming languages (such as JavaScript, HTML/CSS, and a back-end language like Python or Node.js), along with a relevant degree or coding bootcamp certification. Familiarity with frameworks (like React or Angular), version control systems (such as Git), and basic database management is typically required. Strong problem-solving skills, adaptability, and effective teamwork set standout developers apart. These skills are crucial for building robust, user-friendly applications and collaborating efficiently in fast-paced development environments.

What are some common challenges junior full stack developers face during their first year on the job?

Junior Full Stack Developers often encounter challenges such as balancing the demands of both front-end and back-end development, adapting to new frameworks or tools, and managing time effectively across multiple projects. Collaborating with more experienced team members and understanding how to communicate technical concepts clearly can also be a learning curve. Regular code reviews and mentorship are commonly provided to help junior developers grow their skills and confidence in a supportive team environment.

What is the difference between Junior Full Stack Developer vs Front End Developer?

AspectJunior Full Stack DeveloperFront End Developer
Required SkillsHTML, CSS, JavaScript, basic backend knowledge, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design, frameworks like React, Angular, or Vue
Work EnvironmentCollaborates on both client-side and server-side projects, often in startups or tech companiesFocuses on user interface and experience, primarily in web development teams
Common UsageEntry-level role for full stack development in various industriesSpecialized role focusing on front-end development in web projects

The main difference is that a Junior Full Stack Developer works on both front-end and back-end tasks, while a Front End Developer specializes in creating and optimizing user interfaces. The Junior Full Stack Developer has a broader skill set, whereas the Front End Developer focuses more on design and user experience.

More about Junior Full Stack Developer jobs

What are the most commonly searched types of Full Stack Developer jobs in London, ON?

The most popular types of Full Stack Developer jobs in London, ON are:

What are popular job titles related to Junior Full Stack Developer jobs in London, ON?

For Junior Full Stack Developer jobs in London, ON, the most frequently searched job titles are:

What cities near London, ON are hiring for Junior Full Stack Developer jobs?

Cities near London, ON with the most Junior Full Stack Developer job openings:

Junior Full Stack Developer jobs near you
Infographic showing various Junior Full Stack Developer job openings in London, ON as of August 2026, with employment types broken down into 90% Full Time, 4% Part Time, 5% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $63,614 per year, or $30.6 per hour.

Junior Software Developer (C++)

Squarepoint Capital

London, ON

Full-time

Re-posted 29 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 C++ to build the majority of our low latency and high performance systems, which are directly responsible for executing the critical trading path. Your work in this domain will have a direct impact on our trading success: powering critical trading operations, serving low latency market data or providing crucial market connectivity access to our daily trading operations. You could be driving the design and implementation of trading frameworks, centralised services processing massive volumes of data, or other high-volume distributed applications at Squarepoint.

Whichever project you work on, you will be pushing the boundaries of high performance software, and growing your skills in a highly collegiate work environment.

Required Qualifications:  

  • Degree in Computer Science, Computer Engineering, or other degree with a heavy emphasis on software development,
  • Up to 4 years experience in a relevant role such as software or quant development, or similar
  • Experience with C++, 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:

  • Degree with emphasis on low-level systems programming, high performance computing, or similar
  • Experience with any one of: KDB+/q, Python
  • Experience working in an investment or financial business is useful

Apply