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Sr Frontend Developer Jobs in Ontario (NOW HIRING)

\n \n \n \n \n We have an exciting new role for a Senior Front\-End Developer to join a growing consumer brand in Galway. \n \n \n \n \n \n You will play a key role in managing and organizing the ...

\n \n \n \n \n We have an exciting role coming up with a major client based in the financial industry. \n \n \n \n \n \n Our client is looking a Senior Front End Developer with significant Angular ...

\n \n \n \n \n Our client is seeking an experienced senior Front End Developer for a 6\-month, fully remote contract. \n \n \n \n \n \n Required Skills \n \n \n * 6+ years experience in Frontend ...

Senior Front End Developer

Toronto, ON ยท On-site +1

CA$100K - CA$142K/yr

Senior Frontend Developer Your Moneris Career - The Opportunity As a Senior Frontend Developer, you will play a critical role in designing, building, and delivering modern digital experiences that ...

... Front End Developer or similar role (Full Stack or Web Developer) \n * Excellent knowledge of HTML, CSS and JavaScript \n * Confidence with Angular 2+ \n * Experience in banking or investment is ...

Senior Front-End Engineer

Toronto, ON ยท On-site +1

CA$150K - CA$179K/yr

Rumble is seeking a Senior Front-End Engineer to help evolve and scale the core web experiences across our platform, including video pages, listings, and short-form content surfaces. This is a senior ...

Rumble is seeking a Senior Front-End Engineer to help evolve and scale the core web experiences across our platform, including video pages, listings, and short-form content surfaces. This is a senior ...

The RoleWe are looking for a Senior Frontend Developer to lead the development of our user-facing ecosystem. In this role, you will bridge the gap between complex energy data and intuitive user ...

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Showing results 1-20

Sr Frontend Developer information

What is the difference between Sr Frontend Developer vs Frontend Developer?

AspectSr Frontend DeveloperFrontend Developer
Required ExperienceTypically 5+ years, leadership skills1-3 years, entry to mid-level
ResponsibilitiesAdvanced coding, mentoring, project leadershipImplementing UI features, bug fixes
Skills & CertificationsExpertise in JavaScript, frameworks, leadershipHTML, CSS, JavaScript basics
Work EnvironmentSenior roles in teams, project planningDevelopment teams, collaborative projects

The main difference between a Sr Frontend Developer and a Frontend Developer lies in experience, responsibilities, and leadership. Senior developers handle complex tasks, mentor others, and lead projects, while frontend developers focus on implementing features and fixing bugs. Both roles require strong JavaScript, HTML, and CSS skills, but senior roles demand more experience and strategic input.

What is a Sr Frontend Developer?

Sr Frontend Developers are experienced software engineers who specialize in building and optimizing the user interfaces of web applications. They are responsible for translating design mockups into interactive, responsive, and accessible web pages using technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue). In addition to coding, Sr Frontend Developers often lead technical decisions, mentor junior developers, and collaborate closely with designers and backend engineers to deliver high-quality user experiences. Their expertise ensures that web applications are visually appealing, performant, and user-friendly.

What are some common challenges faced by Sr Frontend Developers when working on cross-functional teams?

Sr Frontend Developers often collaborate closely with backend engineers, UX/UI designers, and product managers. A common challenge in these environments is ensuring clear communication of technical requirements and design expectations to avoid misunderstandings that can lead to rework. Balancing user experience with technical feasibility is another frequent hurdle, especially when negotiating priorities between design vision and performance constraints. Effective Sr Frontend Developers proactively bridge gaps through strong documentation, regular alignment meetings, and by advocating for best practices in both development and design.

What are the key skills and qualifications needed to thrive as a Sr Frontend Developer?

To thrive as a Sr Frontend Developer, you need deep expertise in HTML, CSS, JavaScript, and modern front-end frameworks like React or Angular, usually backed by a degree in computer science or equivalent experience. Advanced knowledge of tools such as Git, Webpack, RESTful APIs, and proficiency with testing frameworks is typically required. Outstanding problem-solving abilities, strong collaboration, and effective communication set top performers apart in this role. These skills ensure the delivery of high-quality, user-friendly interfaces and seamless teamwork in fast-paced development environments.
What cities in Ontario are hiring for Sr Frontend Developer jobs? Cities in Ontario with the most Sr Frontend Developer job openings:
Infographic showing various Sr Frontend Developer job openings in Ontario as of July 2026, with employment types broken down into 91% Full Time, 7% Part Time, and 2% Contract. Highlights an 84% Physical, 6% Hybrid, and 10% Remote job distribution.

Senior Front End Developer

StackandCo

Galway, NY โ€ข On-site

Full-time

Re-posted 10 days ago


Job description

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\n We have an exciting new role for a Senior Front\-End Developer to join a growing consumer brand in Galway.<\/span>
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\n You will play a key role in managing and organizing the Front End Development work across the team, whilst mentoring and educating the more junior Front End Developers on best practices.<\/span>
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\n Requirements<\/u><\/b>
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  • 4+ years' experience in Front End Development
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  • Experience of using modern JavaScript frameworks such as React & Angular
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  • Ability to work\/lead in a senior position in an agile environment
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  • Excellent JavaScript skills and optimization of front\-end code
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  • Knowledge of UX design principles
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