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Senior Frontend Developer Jobs in Whitby, ON (NOW HIRING)

Senior Java Developer

Toronto, ON ยท On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Work with React.js and Google App Engine with Python 2.7 to support the Front End team. What's in ...

Senior Java Developer

Toronto, ON ยท On-site +1

$91K - $120K/yr

Are you a Senior Java Developer who loves working with cutting-edge technologies and solving ... Work with React.js and Google App Engine with Python 2.7 to support the Front End team. What's in ...

Senior TypeScript Developer

Toronto, ON ยท On-site

CA$100K - CA$150K/yr

The Senior TypeScript Developer role focuses on designing and building scalable applications ... Responsibilities include developing robust TypeScript solutions for both front-end and back-end ...

Senior Full-Stack Developer Location: Ottawa, ON (Remote) About the Role We are looking for a ... This role is hands-on and product-focused, working across the stack - from Angular front-end ...

... of data pipelines, applying DevOps practices, pair programming, and other cutting-edge ... Front-end Engineers, Product Analysts, and Business Intelligence teams * Demonstrate an in-depth ...

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... of data pipelines, applying DevOps practices, pair programming, and other cutting-edge ... Front-end Engineers, Product Analysts, and Business Intelligence teams * Demonstrate an in-depth ...

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Senior Software Developer (Remote)

Toronto, ON ยท Remote

CA$110K - CA$145K/yr

Experienced in integrating Frontend and Backend via REST APIs with special attention to mitigating web vulnerabilities * Cloud & Microservices Depth: Hands-on experience leveraging cloud services to ...

Senior Fullstack Developer

Toronto, ON ยท Remote

CA$120K - CA$145K/yr

... front-end and back-end technologies. Responsibilities * Write high-quality, reusable code following ... Provide senior-level support to developers on your team through mentoring and helping them debug ...

Cority is looking for a Sr. Software Developer to be a part of our existing team. We are very ... Frontend testing automation using Selenium * Scripting with batch/powershell/python * Knowledge of ...

Cority is looking for a Sr. Software Developer to be a part of our existing team. We are very ... Frontend testing automation using Selenium * Scripting with batch/powershell/python * Knowledge of ...

JD We are looking for Senior Angular Developer will be responsible for building and maintaining ... role bridges frontend development with backend integration and cloud deployment ensuring ...

... including: * Front-End - React, Javascript, TypeScript, HTML5, CSS3 * Back-End - Python, Groovy ... As a Senior Systems Developer, you'll play a key role in the design, development and support of ...

Collaboratively work with others to design front-end solutions and use the tech stack effectively ... Programming - Is responsible for unit testing and system testing their code. * Proactively ...

We're looking for a Senior Software Engineer to join the CoCounsel Applications team and play a ... Frontend Expertise: Experience with modern frontend frameworks such as React, along with a solid ...

Showing results 41-60

Senior Frontend Developer information

What is a senior frontend developer?

Senior Frontend Developers are experienced software professionals who specialize in building and maintaining the user-facing parts of web applications. They work with technologies like HTML, CSS, and JavaScript frameworks (such as React, Angular, or Vue.js) to create responsive, interactive, and visually appealing interfaces. In addition to coding, they often lead frontend projects, mentor junior developers, and collaborate with designers and backend engineers to ensure seamless user experiences. Their role also includes optimizing web performance and adhering to best practices in accessibility and usability.

What are the key skills and qualifications needed to thrive as a senior frontend developer, and why are they important?

To thrive as a Senior Frontend Developer, you need advanced proficiency in HTML, CSS, JavaScript, and modern frameworks like React or Angular, along with a relevant degree or equivalent experience. Familiarity with version control systems (such as Git), frontend build tools, testing libraries, and possibly certifications like AWS Certified Developer are typically important. Strong problem-solving abilities, effective communication, and a collaborative mindset are crucial soft skills for excelling in this role. These skills ensure the delivery of high-quality, scalable user interfaces that meet both technical and business requirements.

What are some common challenges senior frontend developers face when leading projects, and how can they address them?

Senior Frontend Developers often encounter challenges such as aligning cross-functional teams, managing technical debt, and maintaining code quality while meeting deadlines. To address these, effective communication with designers, backend engineers, and product managers is crucial. Adopting best practices like code reviews, thorough documentation, and utilizing modern frameworks helps streamline collaboration and ensure maintainability. Additionally, mentoring junior developers and promoting knowledge sharing within the team can foster a more efficient and cohesive work environment.

What is the difference between Senior Frontend Developer vs Frontend Engineer?

AspectSenior Frontend DeveloperFrontend Engineer
Required CredentialsBachelor's in CS or related field, extensive experienceBachelor's in CS or related field, strong technical skills
Work EnvironmentCollaborates with designers, backend teams, project managersFocuses on building and optimizing frontend applications
Industry UsageCommon in tech companies, startups, agenciesUsed interchangeably with Senior Frontend Developer in many contexts
Search & Comparison IntentUnderstanding senior-level responsibilities and skillsClarifying role scope and technical focus

While both roles require strong frontend skills and similar educational backgrounds, a Senior Frontend Developer typically has more leadership responsibilities and project oversight. A Frontend Engineer may focus more on technical implementation and architecture. The terms are often used interchangeably, but understanding the nuances helps in job searches and role expectations.

What cities near Whitby, ON are hiring for Senior Frontend Developer jobs?

Cities near Whitby, ON with the most Senior Frontend Developer job openings:

Infographic showing various Senior Frontend Developer job openings in Whitby, ON as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Senior React Native Developer (Remote)

Rivalry

Toronto, ON โ€ข Remote

Full-time

PTO

Re-posted 14 hours ago


Job description

Description
Reporting to: CTO
Working closely with: Engineering and Product
Seniority: Senior/Lead

TL/DR:
We are looking to add a highly skilled and experienced React Native developer to our team. You will help build and launch our new mobile app on Android and iOS platforms. You will work alongside both experienced and intermediate developers, and will be asked to collaborate with others as well as lead projects yourself. 

The nitty-gritty:
  • Leading by example, where you can report back to the CTO
  • Brainstorming sessions where you will contribute ideas to future features
  • Sprint Planning, where you will break down large epics into smaller actionable tasks with details
  • Code Reviews, providing feedback and direction to others
  • Pair Programming over Tuple, providing support to team members
  • Prototyping concepts as a part of idea exploration

Your stats:
  • 5+ years of engineering experience in the software industry as an developer/architect/engineer with a distinguished track record of delivering on technically demanding projects.
  • 3+ years of experience implementing React Native mobile applications
  • Experience in working with React Native with and without Expo
  • Strong Knowledge of JavaScript (ES6+) / TypeScript
  • Strong understanding of inner workings of JavaScript frameworks and building modern web applications
  • Experience with React Native best practices 
  • Experience adding and debugging 3rd party Native SDK and a plus if you have contributed to any
  • Experience with security best practices in mobile development 
  • Understanding of testing principles for mobile development 
  • Responsive design concepts, with a focus on mobile 

Bonus Points:
  • Experience with CI/CD for Mobile 
  • Google Play/Apple store knowledge
  • Native iOS/Android experience (Java, Kotlin, Swift, etc.) 
  • Vue or React JS (Our frontend web development team codes in vue only)
  • Knowledge of Nuxt.js/Next.js 
  • NodeJS and Server Side Rendering concepts
  • Creating functional user interfaces from theoretical discussion or wireframes
  • Frontend Asset Optimization (SVGs, image compression, minimal DOM depth)
  • Frontend Tooling (webpack, eslint, prettier, etc)
  • Testing your work (browser testing, unit tests, storybook, etc)
  • Any design experience 

Our Stats
  • We offer a competitive salary and total rewards package.
  • A chance to work in one of the most exciting and rapidly growing industries
  • Work with an extremely talented team who share a love for video games and esports on truly innovative projects.
  • See your performance in real time, be part of a supportive team with a focus on training, coaching and continual improvement, and benefit from yearly salary reviews
  • Remote and flexible working arrangements.
  • Open Paid Vacation. 
  • Free video games! Every Rivalry employee gets a monthly stipend.
  • + more!