1

Junior Mern Stack Developer Jobs in Toronto, ON (NOW HIRING)

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 ...

Senior Full Stack Developer

Toronto, ON · On-site

CA$100K - CA$140K/yr

Guide junior developers through challenging problems, fostering their growth and building technical ... stack development * Advanced proficiency in frontend technologies: HTML5, CSS, JavaScript ...

Mentor junior and intermediate developers, while promoting engineering best practices across the ... Our Technology Stack * Frontend: Angular, Nodejs * Backend: C#, Node.js, Express, Java, REST APIs ...

Coach and guide junior developers through code reviews, pair programming, and clear technical ... MERN stack (MongoDB, Express, React, Node) in a professional environment * 4+ years experience ...

Mentor junior and intermediate developers, while promoting engineering best practices across the ... Our Technology Stack * Frontend: React, TypeScript, React Router, React Query, Zustand, AgGrid ...

The Role Scotiabank is looking for a motivated and enthusiastic Junior Full Stack Developer (Level 6) to join our growing engineering team. We are seeking someone who is passionate about technology ...

Staff Software Developer, Full Stack

Toronto, ON · Hybrid

CA$164K - CA$222K/yr

This engineer should be full-stack and prepared to work at all levels of the application. They will ... Coach and mentor junior engineers on best practices of software engineering, leveraging AI to ...

Mentor junior team members and promote AI literacy across the IT team and business stakeholders ... Solid understanding of DevOps practices and Azure DevOps or GitHub Actions * Experience with ...

Full Stack Java Developer

Mississauga, ON · Hybrid

CA$79K - CA$110K/yr

Citi is looking for a Full Stack Java Developer to join its Technology team and play a meaningful ... Coach and support junior analysts, sharing technical knowledge and contributing to team capability ...

... full-stack engineer, but also dive deep into specific problem areas when needed. You're part ... junior dev. * You know how to delegate effectively, and you're excellent at unblocking teams and ...

next page

Showing results 1-20

Junior Mern Stack Developer information

See Toronto, ON salary details

$34.4K

$118.6K

$170.8K

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

As of Sep 6, 2026, the average yearly pay for junior mern stack developer in Toronto, ON is $118,593.00, according to ZipRecruiter salary data. Most workers in this role earn between $95,911.00 and $141,242.00 per year, depending on experience, location, and employer.

What is a junior MERN Stack Developer?

A Junior MERN Stack Developer is an entry-level software developer who specializes in building web applications using the MERN stack, which consists of MongoDB, Express.js, React, and Node.js. They assist in developing, testing, and maintaining both front-end and back-end components of web applications. Typical responsibilities include writing clean code, fixing bugs, collaborating with senior developers, and integrating APIs. Strong foundational knowledge of JavaScript, database management, and version control (e.g., Git) is essential. This role is ideal for individuals looking to gain hands-on experience and grow their skills in full-stack development.

What kind of projects or tasks might a junior MERN Stack Developer typically work on?

As a Junior MERN Stack Developer, you will often be involved in building and maintaining web applications, implementing new features, and fixing bugs within the application stack. Your day-to-day work may include writing code for both front-end (using React.js) and back-end (using Node.js and Express), working with databases like MongoDB, and collaborating closely with other developers, designers, and project managers. You may also be asked to participate in code reviews, contribute to team discussions on architecture or user experience, and learn best practices for scalable and maintainable code. This hands-on experience helps you develop your technical skills and prepares you for more advanced responsibilities as your career progresses.

What are the key skills and qualifications needed to thrive in the junior MERN Stack Developer position, and why are they important?

To thrive as a Junior MERN Stack Developer, you need a solid understanding of JavaScript, React.js, Node.js, Express, and MongoDB, typically supported by a relevant degree or coding bootcamp. Familiarity with version control systems like Git, Agile development practices, and basic knowledge of RESTful APIs are highly valued, while certifications in web development can enhance your candidacy. Strong problem-solving abilities, good communication skills, and a willingness to learn enable effective collaboration and growth in this role. These skills and qualities are essential for building efficient web applications and contributing successfully to dynamic development teams.

What are the most commonly searched types of Mern Stack Developer jobs in Toronto, ON?

The most popular types of Mern Stack Developer jobs in Toronto, ON are:

What cities near Toronto, ON are hiring for Junior Mern Stack Developer jobs?

Cities near Toronto, ON with the most Junior Mern Stack Developer job openings:

Infographic showing various Junior Mern Stack Developer job openings in Toronto, ON as of August 2026, with employment types broken down into 100% Full Time. Highlights an 91% In-person, and 9% Hybrid job distribution, with an average salary of $118,593 per year, or $57 per hour.

Junior Full Stack Developer Coop

Magna

Milton, ON

Full-time

Re-posted 10 days ago


Key responsibilities

  • Assist in the design, development, testing, and maintenance of software applications.

  • Collaborate with users and team members to determine system requirements and ensure design meets operational needs.

  • Design, code, test, debug, and document new and existing applications in accordance with departmental standards.


Job description

Job descriptions may display in multiple languagesbased on your language selection.

What we offer:
At Magna, you can expect an engaging and dynamic environment where you can help to develop industry-leading automotive technologies. We invest in our employees, providing them with the support and resources they need to succeed. As a member of our global team, you can expect exciting, varied responsibilities as well as a wide range of development prospects. Because we believe that your career path should be as unique as you are.
Group Summary:
Cosma provides a comprehensive range of body, chassis and engineering solutions to global customers. Through our robust product engineering, outstanding tooling capabilities and diverse process expertise, we continue to bring lightweight and innovative products to market.

Job Responsibilities:

POSITION SUMMARY:

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 researching, designing, documenting, and modifying software programs and applications throughout the system life cycle. This position requires an ability to create and interpret various instructions furnished in written, oral, diagrammatic, or scheduled form. Must have analytical and problem-solving skills and an intense desire to learn, understanding of coding methods and best practices. Able to communicate effectively with non-technical staff and with members of interdisciplinary teams.

Start Date: June 1, 2026

End Date: August 28, 2026

MINIMUM JOB REQUIREMENTS:

  • Pursuit of Bachelor's degree or Community College diploma in Computer Studies, Computer Science, Science, Engineering or Mathematics or equivalent
  • Applicants must be enrolled in a recognized postsecondary co-op program
  • Moderate level of application experience
  • Knowledgeable in several modern programming languages and schema design concepts
  • Knowledgeable in the use of at least one modern Database Management System
  • Experience working both independently and in a team-oriented, collaborative environment

SKILLS AND COMPETENCIES:

  • Strong analytical, organizational and communication skills
  • Excellent problem solving and interpersonal skills
  • Understands operating systems and networking
  • Strong user orientation and customer focus

JOB RESPONSIBILITIES:

  • Maintain safety standards of equipment and work area and perform all duties in a safe manner in accordance with the safety policies of Karmax.
  • Perform all duties in a safe manner in accordance with Section 28 of the Occupational Health & Safety Act and Regulations for Industrial Establishments.
  • Follow Magna's Code of Conduct and Ethics and related compliance policies. Perform all duties in an environmentally responsible manner in accordance with the Karmax Environmental Policy Statement-3 P's.
  • Prevent Pollution, Preserve Natural Resources & Protect our Environment Follows Magna internal and external compliance policies.
  • Assists in the feasibility studies for the establishment of new or revised systems and procedures.
  • Carries out systems analysis and design at a junior level. Formulates logical statements of operational, administrative, or financial problems using structured systems design techniques.
  • Ensures that the resulting design meets the operational needs and requirements of the users.
  • Works directly with users to determine systems requirements and meets with senior management in the company.
  • Employs iterative development techniques in the implementation of systems.
  • Design and develop front-end & back-end components/services for new and existing applications.
  • Integration of internal systems to external applications/services.
  • Assists other staff with all systems and procedures to ensure conformance to standards.
  • Designs, codes, tests, debugs, and documents new and existing applications in accordance with departmental programming and development standards.
  • Understands version control and source code management.
  • Keeps current with software and hardware technology, understands emerging trends, and keeps team members informed.
  • Assists the project leader and assists other staff involved in the detailed design and coding of system projects.
  • Attends code reviews with Senior and Junior Developers.
  • Attends regular status meetings with project team members to determine business priorities.
  • Flexible to work occasional overtime. Performs other duties as required.

WORK ENVIRONMENT

  • Must be able to work in various locations within and outside the Manufacturing Plant
  • Must be able to work outside of normal office hours to meet needs of the position with minimum supervision
  • Lifting up to 20 kgs
  • Exposed periodically to elements such as temperature and noise
  • Office environment within a manufacturing operation
Awareness, Unity, Empowerment:

At Magna, we believe that a diverse workforce is critical to our success. That's why we are proud to be an equal opportunity employer. We hire on the basis of experience and qualifications, and in consideration of job requirements, regardless of, in particular, color, ancestry, religion, gender, origin, sexual orientation, age, citizenship, marital status, disability or gender identity. Magna takes the privacy of your personal information seriously. We discourage you from sending applications via email or traditional mail to comply with GDPR requirements and your local Data Privacy Law.

AI-Assisted Screening Disclosure

As part of our commitment to a fair, consistent, and efficient recruitment process, we may use artificial intelligence (AI) tools to assist in the initial screening of applications submitted through our Workday system. These tools help identify qualifications and experience that align with the role requirements. Please note that AI is used solely to support our recruiters. Final decisions are always made by the hiring manager and the hiring team. Importantly, no applicant data is shared externally through these AI tools. All information remains securely within our systems and is handled in accordance with our privacy and data protection policies.

Under conditions defined by applicable law, you may have the right to request an explanation of how AI is used to support decision-making.

If you have any questions or concerns about this process, feel free to contact our Talent Attraction team.

Worker Type:

Fixed Term (Fixed Term)

Group:

Cosma International