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Full Stack Application Developer Jobs in Ontario

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 ...

StackandCo

You will work on a high performing team of Senior Full Stack Engineers where you will be building a ... application. Apply today! \n \n \n

StackandCo

\n \n \n \n \n Full Stack Java Developer (Java\/JavaScript\/ReactJS) \- 520 per day \- 12 month contract \- Long term project with multinational Financial Services client Duration: 12 Months Rolling ...

Citi

React Full Stack Developer

Mississauga, ON · On-site

From a technical standpoint, the Software Engineer has full-stack coding and implementation ... Utilize Docker for application containerization and Kubernetes for efficient service orchestration.

Citi

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 ... Develop application components to specification, translating design requirements into clean ...

Alquemy

Full Stack Engineer

Toronto, ON · On-site

You will work as part of a collaborative DevOps team, delivering production-ready solutions while ... Experience with LLM application development, including AI agents, RAG, prompt engineering, and tool ...

Alquemy

Full Stack Engineer

Toronto, ON · On-site

... Stack Developer with strong Java expertise to join a technology team focused on building and ... Analyze application performance and implement data-driven optimizations. Participate in code ...

StackandCo

\n \n \n \n \n Our client is looking for an experienced Full Stack Developer to join their team for a minimum of 6 months (fully remote). \n \n \n \n \n \n Requirements \n \n \n \n \n \n * 5+ years ...

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 ...

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 ...

StackandCo

\n \n \n \n \n Our client is looking an experienced Full Stack Developer with experience in PHP and JavaScript (this role will be remote in the short term). \n \n \n \n \n \n The company is a great ...

Machina Labs

Full Stack Engineer

Chatsworth, ON · On-site

CA$130K - CA$150K/yr

Machina Labs is seeking a Full Stack Engineer to join our software team and help build the systems ... We endeavor to make the job application process accessible to any and all users. If you have a ...

Accenture

AI Full Stack Developer

Toronto, ON · On-site

CA$114K - CA$171K/yr

We are seeking a talented senior full stack developers or team leads to join our Canadian Apps and ... Hands-on experience using AI tools in application development * Successful experience creating and ...

Accenture

AI Full Stack Developer

Ottawa, ON · On-site

CA$114K - CA$171K/yr

We are seeking a talented senior full stack developers or team leads to join our Canadian Apps and ... Hands-on experience using AI tools in application development * Successful experience creating and ...

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Showing results 21-40

All JobsFull Stack Application Developer JobsFull Stack Application Developer Jobs in Ontario

Full Stack Application Developer information

What is a full stack application developer?

A Full Stack Application Developer is a software professional who is skilled in both front-end and back-end development. This means they can work on the user interface, server-side logic, databases, and sometimes even deployment and infrastructure. Full Stack Developers are versatile and can handle multiple aspects of building and maintaining web applications. Their broad skill set allows them to work across the entire technology stack, making them valuable assets to development teams.

What are the key skills and qualifications needed to thrive as a full stack application developer?

To thrive as a Full Stack Application Developer, you need strong proficiency in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Node.js, Python, or Java) and a solid understanding of software development principles. Familiarity with frameworks like React or Angular, database systems (SQL or NoSQL), version control (Git), and potentially certifications like AWS Certified Developer are commonly expected. Problem-solving, adaptability, and effective communication are vital soft skills, enabling collaboration and efficient troubleshooting. These combined skills ensure the ability to independently build, maintain, and scale robust applications that meet user and business needs.

What are some common challenges full stack application developers face when managing both front-end and back-end tasks?

Full Stack Application Developers often encounter the challenge of balancing priorities between front-end user experience and back-end system performance. Staying proficient in a wide range of technologies and frameworks can be demanding, especially as projects scale or new tools are adopted. Effective communication with both UI/UX designers and server-side engineers is essential to ensure cohesive integration and smooth workflows. Adapting to frequent context switching and troubleshooting across the entire stack requires strong organizational skills and a proactive approach to learning.

What cities in Ontario are hiring for Full Stack Application Developer jobs?

Cities in Ontario with the most Full Stack Application Developer job openings:

Full Stack Application Developer jobs near you
Infographic showing various Full Stack Application Developer job openings in Ontario as of August 2026, with employment types broken down into 76% Full Time, 19% Part Time, and 5% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution.

Senior Full Stack Developer

StackandCo

Full-time

Re-posted 7 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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