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Senior Full Stack Developer Jobs in Ontario (NOW HIRING)

StackandCo

\n \n \n \n \n The successful Senior Full Stack Developer will assume ownership for a diversity of greenfield projects and mentor junior developers. \n \n \n \n \n \n This role will involve adding new ...

Netsweeper Inc.

Senior Full Stack Developer

Waterloo, ON · On-site +1

We're looking for a talented Senior Full Stack Developer to join our team of skilled developers and contribute to the success of our products. Job Summary: We're seeking an experienced Senior Full ...

Scribendi

Senior Full Stack Developer

Toronto, ON · On-site

Scribendi is seeking a Senior Full-Stack Engineer to build AI-driven products that empower researchers worldwide. You will work across the full stack to deliver scalable, high-performance ...

Scribendi

Senior Full Stack Developer

Chatham, ON · On-site

Scribendi is seeking a Senior Full-Stack Engineer to build AI-driven products that empower researchers worldwide. You will work across the full stack to deliver scalable, high-performance ...

Apply Early

Aversan

Senior Full Stack Developer

Mississauga, ON

CA$110K - CA$140K/yr

Senior Full Stack Software Engineer Aversan Inc.(www.aversan.com) is a trusted multi-service engineering and electronics manufacturing company. Aversan delivers leading-edge and reliable safety ...

Scribendi

Senior Full Stack Developer

Windsor, ON · On-site

Scribendi is seeking a Senior Full-Stack Engineer to build AI-driven products that empower researchers worldwide. You will work across the full stack to deliver scalable, high-performance ...

Apply Early

StackandCo

\n \n \n \n \n The successful Senior Full Stack Developer will assume ownership for a diversity of greenfield projects and mentor junior developers. \n \n \n \n \n \n This role will involve adding ...

Trellis

Senior Full Stack Developer

Kanata, ON

We're looking for a passionate Senior Full-Stack Developer who wants to make a difference in a fast-growing startup. We are a B2B SaaS company that provides an AI-powered software platform for e ...

Targeted Talent

Senior Full-Stack Developer

Ottawa, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

Targeted Talent

Senior Full-Stack Developer

Waterloo, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

Targeted Talent

Senior Full-Stack Developer

Kitchener, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

Targeted Talent

Senior Full-Stack Developer

Ottawa, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

Targeted Talent

Senior Full-Stack Developer

Kitchener, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

Targeted Talent

Senior Full-Stack Developer

Waterloo, ON · Remote

We are looking for an experienced Senior Full-Stack (React & Node) Developer for our client. This is a permanent position that is completely remote! Our client is a fintech company based out of ...

Apply Early

StackandCo

You will work on a high performing team of Senior Full Stack Engineers where you will be building a revolutionary new Banking App. \n \n \n \n \n \n Requirements: You will have hands on commercial ...

StackandCo

Senior Full Stack Developer

Galway, NY

\n \n \n \n \n My client, a world renowned, fortune 500 fintech company are seeking a full stack developer to join their team. \n \n \n \n \n \n Role Overview The primary responsibility of the full ...

Konrad

Senior Full Stack Developer

Toronto, ON · Hybrid

CA$120K - CA$145K/yr

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

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Showing results 1-20

All JobsSenior Full Stack Developer JobsSenior Full Stack Developer Jobs in Ontario

Senior Full Stack Developer information

See Ontario salary details

$51.5K

$126.2K

$183.5K

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

As of Jul 1, 2026, the average yearly pay for senior full stack developer in Ontario is $126,159.00, according to ZipRecruiter salary data. Most workers in this role earn between $104,000.00 and $145,500.00 per year, depending on experience, location, and employer.

What is the difference between Senior Full Stack Developer vs Backend Developer?

AspectSenior Full Stack DeveloperBackend Developer
Required SkillsProficiency in both frontend and backend technologies, such as JavaScript, HTML, CSS, and server-side languages like Node.js, Python, or JavaSpecialized in server-side development, working with languages like Java, Python, Ruby, or PHP, and database management
Work EnvironmentCollaborates across frontend and backend teams, often involved in full project lifecycleFocuses primarily on backend systems, APIs, and database integration
Common UsageUsed in roles requiring full project oversight and versatile development skillsUsed in roles focused on server-side logic, database management, and API development

The main difference is that a Senior Full Stack Developer handles both frontend and backend development, providing a comprehensive approach to projects, while a Backend Developer specializes solely in server-side logic and database management. Both roles require strong programming skills, but the Full Stack Developer's expertise spans the entire technology stack.

How does a Senior Full Stack Developer typically collaborate with cross-functional teams during a project lifecycle?

As a Senior Full Stack Developer, you'll frequently collaborate with designers, product managers, QA engineers, and other developers to deliver end-to-end solutions. You'll be involved in requirements discussions, offer technical guidance, and help align frontend and backend development with business goals. Your role often includes code reviews, mentoring junior team members, and ensuring seamless integration across various systems. This collaborative environment encourages knowledge sharing and innovation while ensuring project success.

What are the key skills and qualifications needed to thrive as a Senior Full Stack Developer, and why are they important?

To thrive as a Senior Full Stack Developer, you need advanced proficiency in both front-end and back-end programming languages, frameworks, and a solid understanding of software architecture, usually supported by a relevant degree and several years of experience. Mastery of tools such as Git, Docker, CI/CD systems, and cloud platforms like AWS or Azure is typically required, alongside familiarity with databases and version control systems. Strong problem-solving abilities, leadership, effective communication, and collaboration skills set exceptional developers apart. These skills and qualities are crucial for delivering robust, scalable solutions while mentoring teams and efficiently bridging gaps between client requirements and technical implementation.

What are Senior Full Stack Developers?

Senior Full Stack Developers are experienced professionals who design, develop, and maintain both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to handle servers, databases, APIs, and user interfaces. In addition to coding, they often lead development teams, make architectural decisions, and ensure software quality and scalability. Their expertise allows them to oversee the entire application lifecycle, from concept to deployment.
What are the most commonly searched types of Full Stack Developer jobs in Ontario? The most popular types of Full Stack Developer jobs in Ontario are:
What are popular job titles related to Senior Full Stack Developer jobs in Ontario? For Senior Full Stack Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Senior Full Stack Developer jobs in Ontario look for? The top searched job categories for Senior Full Stack Developer jobs in Ontario are:
What cities in Ontario are hiring for Senior Full Stack Developer jobs? Cities in Ontario with the most Senior Full Stack Developer job openings:
Senior Full Stack Developer jobs near you
Infographic showing various Senior Full Stack Developer job openings in Ontario as of June 2026, with employment types broken down into 71% Full Time, 18% Part Time, and 11% Contract. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $126,159 per year, or $60.7 per hour.

Senior Full Stack Developer

StackandCo

Full-time

Posted 29 days ago

Job description

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\n The successful Senior Full Stack Developer will assume ownership for a diversity of greenfield projects and mentor junior developers.<\/span>
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\n This role will involve adding new features, improving the user interface and building web services for clients.<\/span>
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\n As well as this, you will play an important role in an exciting migration project from AngularJS to React.<\/span>
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\n You will actively contribute ideas to enhance performance and scalability, as well as influence the direction of future business.<\/span>
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\n This is an extremely exciting opportunity for an ambitious Full Stack Developer who wants to attain more responsibility, work with cutting edge technologies, and take a step up in their career.<\/span>
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\n The company are committed to working with the most modern technologies, therefore you will be working with a modern tech stack including <\/span><\/span>AWS, JavaScript, HTML5, CSS3, React and Node.js<\/b>.<\/span>
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\n This role will suit any Full stack Developer with a strong desire to constantly upskill and learn. If you haven't worked with Node but are willing to, great.<\/span>
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\n Applications are welcome from any Full stack Developer with a strong engineering mindset and the confidence to pick up new tech fast.<\/span>
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\n Requirements<\/u><\/b>
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  • Minimum 3 (ideally 5) years Full Stack Development experience building applications
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  • 3+ years with Node.js or a similar backend programming language (PHP, C#, Java, Ruby, Python)
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  • 3\-5 years' commercial experience with HTML5, CSS3, JavaScript and JQuery
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  • Experience developing complex single page applications using AngularJS AND\/OR React or other MVC framework (company use Angular and React)
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  • Commercial experience building and maintaining RESTful APIs
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  • E\-commerce experience highly desirable
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  • Experience with Git, Docker, Jenkins
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  • Preference for candidates who have worked with large enterprise applications
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  • Design pattern experience is nice\-to\-have
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  • Strong communication skills essential
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    \n This role will suit a strong team player; someone who enjoys helping others and can build strong rapport quickly.<\/span>
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Apply