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Junior Full Stack Developer Jobs in Mississauga, ON

Private AI

Junior Full Stack Developer

Toronto, ON · On-site

What you'll do This is a full stack developer role with a front end leaning mandate. You will be part of the team helping Limina build a new product offering. This role is a great opportunity to ...

Magna

Junior Full Stack Developer Coop

Milton, ON

The [Junior Full Stack Developer - coop] role is to help plan, design, develop, test, launch, and maintain software applications in support of the achievement of business requirements. This includes ...

Hays

Full Stack Developer

Toronto, ON · Hybrid

CA$90 - CA$100/hr

Full Stack Developer Job Type: Contract Length: 1 year Salary: $90-100/hr Location: Hybrid (Downtown Toronto, 2 days onsite) Your New Company Our client is a leading global financial services ...

HR à la carte

Full Stack Developer

Toronto, ON · On-site

Position Full Stack Developer Location Toronto, ON (100% onsite) Employment Type New, Full-Time Permanent position Salary $110,000 - $125,000 (depending on experience) plus incentive compensation ...

Alquemy

Full Stack Developer

Toronto, ON · On-site

Full Stack Developer About the role: We are seeking a Full Stack Developer to design, develop, test, deploy, and support software solutions throughout the full software development lifecycle. You ...

1Valet

Senior Full-Stack Developer

Toronto, ON · Remote

Senior Full-Stack Developer Location: Ottawa, ON (Remote) About the Role We are looking for a Senior Full-Stack Developer to join one of our development squads and help build new features for the ...

Magna

Full Stack Developer

Brampton, ON · On-site

CA$100K/yr

TheFull Stack Developerwill work with the IoT architect,technical product ownerand a team of developers(Sr full stack, software, IoT, data science)toensure the efficient and effective development of ...

Konrad

Full Stack Developer

Toronto, ON · Hybrid

CA$90K - CA$120K/yr

About The Role As a Full Stack Developer you'll be tasked with working on one of our web application projects. Working within the software development team, your duties will require you to assist in ...

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Junior Full Stack Developer information

See Mississauga, ON salary details

$29.7K

$69.4K

$112.6K

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

As of Aug 29, 2026, the average yearly pay for junior full stack developer in Mississauga, ON is $69,421.00, according to ZipRecruiter salary data. Most workers in this role earn between $55,576.00 and $78,654.00 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

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

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

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Cities near Mississauga, 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 Mississauga, ON as of August 2026, with employment types broken down into 87% Full Time, 7% Part Time, 5% Contract, and 1% Nights. Highlights an 85% Physical, 4% Hybrid, and 11% Remote job distribution, with an average salary of $69,421 per year, or $33.4 per hour.

Junior Full Stack Developer

Private AI

Toronto, ON • On-site

Full-time

Posted 11 days ago

Job description

About Limina

Limina is the contextual data intelligence platform built for the AI era. Evolved from Private AI, the world's most accurate PII and PHI de-identification engine, Limina has expanded into a full platform play that governs sensitive data across the entire enterprise AI lifecycle: from classification and redaction through to agentic workflows, RAG pipelines, and real-time data security.

Brands like RBC, Deepgram, and Boehringer Ingelheim already rely on our platform to build on, govern, and deploy AI against their most sensitive datasets. We've been recognized as a Gartner Cool Vendor in Privacy and a World Economic Forum Technology Pioneer, and we're backed by investors in Toronto, New York, Seattle, and San Francisco.


What you'll do

This is a full stack developer role with a front end leaning mandate. You will be part of the team helping Limina build a new product offering. This role is a great opportunity to experience the early stages of a product lifecycle. You will learn how to navigate changing roadmaps, customer demands, and novel technical problems as we scale.

  • Building and maintaining features that prospects and customers directly interact with.
  • Solving technically complex engineering problems at enterprise scale.
  • Crafting an excellent user experience across Limina's products.


You would be a good fit for this role if:

  • You have strong knowledge of Typescript and React.
  • You have a fundamental understanding of technical system design and are comfortable working on all parts of the tech stack.
  • You value and are interested in developing your skills for supplementary development processes such as planning, clear documentation, and high quality code reviews.


Nice to haves:

  • Comfortability with cloud providers like AWS.
  • Experience building REST APIs, with python frameworks such as Flask, Django, or FastAPI.
  • You have experience with, and know how to responsibly use, AI coding tools and LLMs.
  • You understand the existential nature of the development process. Even though you have the knowledge that all systems are inherently messy and complex you still find joy in pushing the boulder up the hill.


Why Work For Us

We are a highly effective team of developers who are diligent about technical design choices, high quality code, and building efficient processes.

High levels of seniority within the team means that you will be managed and mentored by developers who have worked at some of the biggest tech firms in the world. You will be working with people who will help build on your foundational skills as a developer and empower you to grow and evolve.

You will be working at a high-velocity startup that offers competitive pay and equity. If you're somebody who values autonomy, ownership, and accountability then you will fit right in.

Our office, located in central Toronto, is minutes away from great restaurants, third spaces for active hobbies, local game stores, and coffee shops.

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