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Senior Javascript Developer Jobs in Mississauga, ON

ShyftLabs

Senior Backend Developer

Toronto, ON · Hybrid

CA$100K - CA$140K/yr

The Opportunity ShyftLabs is looking for a Senior Developer to help design, build, and scale our ... JavaScript, TypeScript, Node.js, and GraphQL remain core requirements for this role. What You'll Do

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 ... Very strong JavaScript programming skills, utilizing tools and platforms like TypeScript, Node.js, ...

Rogers Communications

Sr. Developer

Brampton, ON

We are looking for a highly skilled and innovative Senior Developer who is passionate about ... Angular (18+), React, JavaScript, HTML5, and CSS3 * Experience with source control and build tools ...

Rogers Communications

Sr. Developer

Toronto, ON · On-site

We are looking for a highly skilled and innovative Senior Developer who is passionate about ... Angular (18+), React, JavaScript, HTML5, and CSS3 * Experience with source control and build tools ...

Rogers Communications

Sr. Developer

Brampton, ON · On-site

We are looking for a highly skilled and innovative Senior Developer who is passionate about ... Angular (18+), React, JavaScript, HTML5, and CSS3 * Experience with source control and build tools ...

Fortive

Senior Software Developer

Mississauga, ON · On-site +1

As a Senior Software Developer , you'll play a key role in designing and building high-performing ... Strong skills in TypeScript and JavaScript * Experience with CSS layout and preprocessors (e.g ...

Cority Software

Sr. Software Developer

Toronto, ON · On-site

Cority is looking for a Sr. Software Developer to be a part of our existing team. We are very ... NET Core, NHibernate/Entity Framework, JQuery, Ajax, Web Services, JavaScript, Typescript or ...

Cority Software

Sr. Software Developer

Toronto, ON · On-site

Cority is looking for a Sr. Software Developer to be a part of our existing team. We are very ... NET Core, NHibernate/Entity Framework, JQuery, Ajax, Web Services, JavaScript, Typescript or ...

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Senior Javascript Developer information

See Mississauga, ON salary details

$63.1K

$116.2K

$171.9K

How much do senior javascript developer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for senior javascript developer in Mississauga, ON is $116,235.00, according to ZipRecruiter salary data. Most workers in this role earn between $97,023.00 and $130,463.00 per year, depending on experience, location, and employer.

What is a senior JavaScript developer?

A Senior JavaScript Developer is a highly experienced programmer specializing in JavaScript, including frameworks like React, Angular, or Node.js. They are responsible for designing, developing, and optimizing web applications, ensuring high performance and maintainability. Additionally, they provide technical leadership, mentor junior developers, and collaborate with cross-functional teams to deliver scalable solutions. Strong problem-solving skills, deep knowledge of JavaScript best practices, and experience with modern development tools are essential for this role.

What are typical challenges faced by senior JavaScript developers in day-to-day work?

Senior Javascript Developers often encounter complex challenges such as optimizing web application performance, ensuring code scalability and maintainability, and integrating with diverse APIs and services. They are also expected to troubleshoot legacy code and address security vulnerabilities, all while keeping up with the rapidly evolving JavaScript ecosystem. Collaborating with designers, product managers, and junior developers can add layers of complexity to project requirements. However, overcoming these challenges is rewarding and provides opportunities to shape technical strategy and influence best practices within the team.

What are the key skills and qualifications needed to thrive as a senior JavaScript developer?

To thrive as a Senior Javascript Developer, a strong command of JavaScript (including ES6+), advanced front-end frameworks (like React, Angular, or Vue), and back-end technologies (such as Node.js) are essential, along with several years of professional coding experience. Familiarity with version control systems (like Git), CI/CD pipelines, and relevant certifications (e.g., AWS Certified Developer or JavaScript certifications) is highly valued. Excellent problem-solving abilities, mentorship skills, and effective communication help developers collaborate and lead within cross-functional teams. These skills enable Senior Javascript Developers to build robust applications, guide junior team members, and drive innovation in fast-paced tech environments.

What are the most commonly searched types of Javascript Developer jobs in Mississauga, ON? The most popular types of Javascript Developer jobs in Mississauga, ON are:
What are popular job titles related to Senior Javascript Developer jobs in Mississauga, ON? For Senior Javascript Developer jobs in Mississauga, ON, the most frequently searched job titles are:
What cities near Mississauga, ON are hiring for Senior Javascript Developer jobs? Cities near Mississauga, ON with the most Senior Javascript Developer job openings:
Senior Javascript Developer jobs near you
Infographic showing various Senior Javascript Developer job openings in Mississauga, ON as of August 2026, with employment types broken down into 84% Full Time, 2% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $116,235 per year, or $55.9 per hour.

Senior Software Engineer (Full-Stack JavaScript)

Logical Information Machines

Toronto, ON

CA$90K - CA$132K/yr

Full-time

Re-posted 12 days ago

Job description

About Morningstar

Morningstar unites problem solvers with a clear goal: helping investors achieve their financialobjectives. As a leading investment research and data company, we stand out by how we apply our insights to serve a broad range of users. Our independent investment research, powered bycutting-edgetechnology and design, provides tailored solutions that meet users' needs. Witha strong foundationin data and innovation, we deliver comprehensive services to investors worldwide - empowering better decisions for individuals and those managing money for millions.

The Role

We are seeking a Senior Software Engineerwith full-stack JavaScript experience to join the Central Technology Web Development team in support of Morningstar's Corporate Marketing. This position will be part of an engineering team focused on updating Morningstar's web-based marketing platforms. The position includes the development of new systems, maintenance, and improvement of existing applications. Candidates should have solid software engineering experience in building commercial-grade web-based applications using modern frameworks.

Location: Toronto, ON (We follow a hybrid policy of 4 days onsite)

Job Responsibilities

  • Develop full-stack web applications using Vue.js, Nuxt 3, TypeScript, Node.js, and AWS.
  • Build and maintain server-side rendered and universal web applications, with awareness of routing, hydration, caching, browser behavior, and performance.
  • Create reusable front-end components and contribute to component libraries and design-system patterns.
  • Build and maintain Node.js-based APIs, middleware, and service integrations, including integrations with headless CMS, analytics, personalization, and third-party platforms.
  • Contribute to AI-enabled marketing workflows, including tools that assist with content creation, content migration, schema mapping, personalization, experimentation, and operational automation.
  • Support production-quality delivery through testing, debugging, monitoring, accessibility, SEO, security, privacy, and Core Web Vitals improvements.
  • Troubleshoot issues across browser behavior, API responses, CMS configuration, cloud infrastructure, and build pipelines.
  • Participate in code reviews, technical discussions, documentation, and team planning while continuing to grow technical depth across the stack.

Qualifications

  • 3+ years of professional software development experience, preferably with a focus on full-stack JavaScript or TypeScript.
  • Experience with modern front-end frameworks such as Vue, Nuxt, React, Next.js, Angular, or similar.
  • Familiarity with server-side rendered, statically generated, or universal JavaScript applications.
  • Solid understanding of browser fundamentals, including rendering, JavaScript execution, caching, networking, accessibility, and performance.
  • Strong JavaScript or TypeScript skills, including asynchronous programming, modular code, package management, and modern build tooling such as Vite, Webpack, Rollup, or similar.
  • Experience building or consuming RESTful APIs, Node.js services, middleware, or integrations with external platforms.
  • Familiarity with deploying, debugging, or monitoring applications in AWS or a similar cloud environment.
  • Strong communication skills, curiosity, and the ability to work collaboratively with engineers, product managers, designers, content teams, and other cross-functional partners.

Nice to have

  • Experience with headless Content Management Systems likeContentstack.
  • Experiencedeveloping foror partnering with digital marketing teams,particularly aroundcontent personalization, analytics, or lead generation workflows.
Base Salary Compensation Range$90,489.00-132,711.00

Incentive Target Percentage

12.5% Annual

Morningstar's hybrid work environment gives you the opportunity to collaborate in-person each week as we've found that we're at our best when we're purposely together on a regular basis. In most of our locations, our hybrid work model is four days in-office each week. A range of other benefits are also available to enhance flexibility as needs change. No matter where you are, you'll have tools and resources to engage meaningfully with your global colleagues.

100_MstarResCanad Morningstar Research, Inc. (Canada) Legal Entity

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