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Javascript Developer Jobs in Ontario (NOW HIRING)

Emergn

As a Senior Javascript Developer at Emergn, you'll help us shape Emergn's exciting future and play an important role in our growth. Join our Javascript team, and let's make an impact together! * Take ...

Rebel

JavaScript Full Stack Developer Junior

Ottawa, ON · On-site

JavaScript Full Stack Developer - Junior Location: Ottawa, ON (377 Dalhousie Street) Work Model: Hybrid - 4 days onsite, 1 day work from home About Rebel OUR CUSTOMERS BRING A VISION - WE BRING THE ...

Smart IT Frame LLC

React developer

Mississauga, ON

React Developer Location: Mississauga, ON, Canada / Jersey City, NJ, USA Employment Type: Full-Time ... The ideal candidate will have strong experience in React.js, JavaScript/TypeScript, API integration ...

StackandCo

Excellent programming skills in HTML, CSS, JavaScript \n * Experience and up\-to\-date knowledge of in JavaScript framework \- React \n * You must have a Stamp 4, EU passport or Irish Citizenship \n ...

StackandCo

... developers ... The key technologies used within the company are JavaScript, HTML5, CSS3, React and Node.js. \n \n ...

Tangentia

Toronto, ON Role Overview Looking for a Full Stack Developer to build scalable microservices and modern web applications using Java and JavaScript frameworks. Key Responsibilities * Develop RESTful ...

StackandCo

\n \n \n \n \n PHP Developer We are partnered with an Award Winning E\-Learning company to recruit ... Competent with PHP, JavaScript, MySQL, HTML5, CSS \n * RESTful web services, distributed ...

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All JobsJavascript Developer JobsJavascript Developer Jobs in Ontario

Javascript Developer information

See Ontario salary details

$38.5K

$105.7K

$165K

How much do javascript developer jobs pay per year?

As of Jun 9, 2026, the average yearly pay for javascript developer in Ontario is $105,701.00, according to ZipRecruiter salary data. Most workers in this role earn between $82,000.00 and $128,000.00 per year, depending on experience, location, and employer.

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

To thrive as a JavaScript Developer, you need strong proficiency in JavaScript, HTML, CSS, and a solid understanding of web development principles, often backed by a degree in computer science or comparable experience. Familiarity with frameworks like React or Angular, version control systems like Git, and build tools such as Webpack is typically required. Problem-solving, attention to detail, and effective communication are crucial soft skills for collaborating on projects and resolving technical challenges. These skills and qualities ensure the delivery of robust, maintainable, and efficient web applications that meet user and business needs.

What Does a JavaScript Developer Do?

As a JavaScript developer, your main responsibilities are to code functional web applications using the JavaScript (JS) programming language and to patch and update application code as needed to optimize functionality. You program front-end code for web applications, collaborate with back-end developers, and use tools like integrated development environments (IDEs), Git, and browser dev tools.

What is the difference between Javascript Developer vs Front-End Developer?

AspectJavascript DeveloperFront-End Developer
Primary FocusWriting and optimizing JavaScript codeDesigning and implementing user interfaces
Required SkillsJavaScript, HTML, CSS, frameworks like React or AngularHTML, CSS, JavaScript, UI/UX design
Work EnvironmentWeb development teams, software companiesWeb design agencies, tech firms, startups

Javascript Developers focus on coding and scripting using JavaScript, while Front-End Developers handle the overall design and user experience of websites. Both roles often overlap, but the Javascript Developer specializes in scripting, whereas the Front-End Developer emphasizes UI/UX design and layout.

What does a JavaScript Developer do?

A JavaScript Developer is responsible for designing, developing, and maintaining web applications using the JavaScript programming language. They typically work on both the front-end (user interface) and sometimes the back-end (server-side) of web projects, creating interactive features, optimizing performance, and ensuring cross-browser compatibility. Their role often involves collaborating with designers and other developers to deliver a seamless user experience.

What are some common challenges faced by JavaScript Developers when working on large-scale applications?

JavaScript Developers working on large-scale applications often encounter challenges such as maintaining code readability, managing dependencies, and ensuring performance optimization. As projects grow, it becomes essential to implement best practices like modularization, code reviews, and thorough testing to prevent bugs and technical debt. Collaboration with backend developers, designers, and QA testers is frequent, requiring clear communication and an agile mindset to deliver features efficiently and address issues as they arise.
More about Javascript Developer jobs
What are the most commonly searched types of Javascript Developer jobs in Ontario? The most popular types of Javascript Developer jobs in Ontario are:
What are popular job titles related to Javascript Developer jobs in Ontario? For Javascript Developer jobs in Ontario, the most frequently searched job titles are:
What job categories do people searching Javascript Developer jobs in Ontario look for? The top searched job categories for Javascript Developer jobs in Ontario are:
What cities in Ontario are hiring for Javascript Developer jobs? Cities in Ontario with the most Javascript Developer job openings:
What are popular job titles related to Javascript Developer jobs in ON? For Javascript Developer jobs in ON, the most frequently searched job titles are:
Javascript Developer jobs near you

Lead Javascript Developer

Emergn

On-site, Remote

Full-time

Posted 14 days ago

Job description

We are a global digital business services organization with a mission to improve the way people and companies work. Forever. Our Consulting, Technology and Learning teams design and deliver transformational digital products and experiences that add value to our clients' businesses and to their customers' lives.  
Every day, across the world, our teams are pioneering faster, better ways to bring our client's most exciting ideas to life. Are you ready to make an impact? 
As a Senior Javascript Developer at Emergn, you'll help us shape Emergn's exciting future and play an important role in our growth.  
Join our Javascript team, and let's make an impact together! 
  • Take responsibility over designing, coding, testing and deploying Javascript-based applications.
  • Collaborate with cross-functional teams to define project scope, architecture and delivery timelines.
  • Conduct code reviews and enforce coding standards and best practices.
  • Troubleshoot, debug and optimize applications for performance and scalability.
  • Maintain code integrity and organization that delivers real business value.
  • Actively participate in all frontend activities.


    • Extensive frontend development experience with Javascript
    • Very good knowledge of React
    • Experience with Ruby on Rails , TypeScript, Redux, PostgreSQL, Docker,OpenAI
    • Very good English skills - written and spoken.
Location requirement:
  • Although this position offers the possibility to work remotely, you must be based in Poland.

  • A flexible work environment: you can work remotely or hybrid from Poland.
  • Working with the latest tools and technologies on meaningful client engagements. 
  • Career growth opportunities and a clear progression framework. 
  • Educational programs and opportunities of training and certification at the expense of the company.  
  • Local teambuilding activities and get-togethers.  


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