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Front End Developer Startup Jobs in Ontario (NOW HIRING)

Proof

Senior Full-Stack Developer (Canada)

Toronto, ON · Remote

CA$155K - CA$175K/yr

About the Role Proof is a fast-growing startup at the forefront of legal technology, offering a ... Collaborate with our team to design, develop, and maintain both frontend and backend components of ...

Borrowell

Software Developer

Toronto, ON · On-site +1

Frontend Platform: Focused on architecting our universal codebase and acting as a technical force ... Experience in fast-paced Fintech or startup environments. Our Engineering Team Values * We work ...

Palona AI

AI Software Engineer, Product

Toronto, ON · On-site

Depth in either Python/backend engineering or TypeScript/React frontend engineering, plus the ... Comfort working directly with users and operating in a fast-changing startup environment. * AI ...

Palona AI

AI Software Engineer, Product

Toronto, ON · On-site

Depth in either Python/backend engineering or TypeScript/React frontend engineering, plus the ... Comfort working directly with users and operating in a fast-changing startup environment. * AI ...

Vosyn

WordPress Developer - Internship

Etobicoke, ON · On-site +1

$32/hr

The ideal candidate is skilled in front-end and back-end development, has a keen eye for detail ... If you're ready to make a difference in a startup environment, we'd love to meet you! Key ...

BuildOps

Senior Software Engineer

Toronto, ON · On-site +1

In this role, you'll work across frontend applications, backend services, APIs, and integrations ... Comfort working in a fast-paced startup environment where priorities evolve and strong judgment ...

Fortive

Senior Software Developer

Mississauga, ON · On-site +1

Proficiency with modern front-end frameworks (React preferred; Angular or Vue also considered ... We are a global industrial technology innovator with a startup spirit. Our forward-looking ...

Worthland

Company Overview Our client is a fast-growing Web3 fintech startup headquartered in Vancouver ... Nice-to-Have * Front-end or back-end development experience; ability to read and debug code.

Worthland

Company Overview Our client is a fast-growing Web3 fintech startup headquartered in Vancouver ... Nice-to-Have * Front-end or back-end development experience; ability to read and debug code.

Worthland

Senior QA Engineer

Toronto, ON · On-site +1

Company Overview Our client is a fast-growing Web3 fintech startup headquartered in Vancouver ... Nice-to-Have * Front-end or back-end development experience; ability to read and debug code.

Worthland

Senior QA Engineer

Toronto, ON · On-site +1

Company Overview Our client is a fast-growing Web3 fintech startup headquartered in Vancouver ... Nice-to-Have * Front-end or back-end development experience; ability to read and debug code.

Worthland

Company Overview Our client is a fast-growing Web3 fintech startup headquartered in Vancouver ... Nice-to-Have * Front-end or back-end development experience; ability to read and debug code.

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Showing results 21-40

All JobsFront End Developer Startup JobsFront End Developer Startup Jobs in Ontario

Front End Developer Startup information

See Ontario salary details

$30.5K

$120.2K

$173.5K

How much do front end developer startup jobs pay per year?

As of Sep 10, 2026, the average yearly pay for front end developer startup in Ontario is $120,226.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,000.00 and $136,500.00 per year, depending on experience, location, and employer.

What is a front end developer startup?

A Front End Developer Startup job involves building and optimizing the user interface of a web or mobile application in a fast-paced startup environment. Responsibilities include coding in HTML, CSS, and JavaScript, working with frameworks like React or Vue.js, and collaborating with designers and back-end developers. Startups often require developers to be flexible, take ownership of features, and work on rapid iterations based on user feedback. This role typically demands both technical expertise and creative problem-solving to enhance user experience.

What are the key skills and qualifications needed to thrive as a front end developer startup?

To thrive as a Front End Developer Startup, you need strong skills in HTML, CSS, JavaScript, and modern frameworks like React or Vue, often backed by a relevant degree or proven portfolio. Familiarity with version control systems like Git, as well as build tools and APIs, is essential, while certifications in web development can be beneficial. Adaptability, proactive problem-solving, and the ability to communicate effectively within a fast-paced, collaborative environment are key soft skills. These skills and qualities enable you to build responsive, user-focused interfaces and rapidly iterate while aligning with evolving startup needs.

What are the unique challenges a front end developer faces in a startup environment compared to larger companies?

Working as a Front End Developer in a startup often means tackling a wider variety of tasks, ranging from UI implementation and rapid prototyping to troubleshooting issues across the stack. You may have to adapt quickly to shifting priorities, work with minimal supervision, and frequently collaborate with designers, product managers, and sometimes even directly with back end developers or founders. The pace is fast, so flexibility and a willingness to learn on the fly are crucial. On the upside, this environment provides substantial opportunities to broaden your skill set, take ownership of features, and make a visible impact on the product’s direction.

What are popular job titles related to Front End Developer Startup jobs in Ontario?

For Front End Developer Startup jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Front End Developer Startup jobs in Ontario look for?

The top searched job categories for Front End Developer Startup jobs in Ontario are:

Front End Developer Startup jobs near you
Infographic showing various Front End Developer Startup job openings in Ontario as of September 2026, with employment types broken down into 1% As Needed, 77% Full Time, 17% Part Time, 1% Temporary, and 4% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $120,226 per year, or $57.8 per hour.

Senior Full-Stack Developer (Canada)

Toronto, ON • Remote

Proof
Manufacturing • 1 - 10 employees
Learn more about Proofexternal

CA$155K - CA$175K/yr

Full-time

Medical, Dental, Life

Re-posted 5 days ago

Job description

**Candidates must currently reside in Canada to be considered for this opportunity**
About Proof

We're Proof, a high growth company in the legal tech industry founded in 2017. We've built a best-in-class legal services platform used by thousands of law firms with a sustained average growth rate of over 10%. Our marketplace platform helps law firms and pro se parties access more efficient, transparent, and accessible legal services that are not traditionally available to everyone. Our primary services are Service of Process and E-Filing. We currently support over 3,000 law firms throughout the US and countless pro se parties.

We welcome people from all backgrounds who seek the opportunity to help build a future where access to legal services is readily available, affordable, and efficient. Work with us if you have the curiosity, passion, and collaborative spirit to achieve the fundamental change in an outdated industry.

About the Role

Proof is a fast-growing startup at the forefront of legal technology, offering a best-in-class platform trusted by thousands of law firms across the U.S. Our platform is growing rapidly, with a 10% month-over-month growth, and we are seeking a skilled and motivated Senior Full-Stack Developer to join our talented engineering team as we scale and expand.

What You'll Do
  • Collaborate with our team to design, develop, and maintain both frontend and backend components of the Proof platform, ensuring a seamless and responsive user experience
  • Backend development using Go (Golang), creating and optimizing APIs, database usage, and core backend infrastructure.
  • Implement modern, user-friendly interfaces using React and TypeScript, ensuring the platform meets high standards of performance, scalability, and maintainability.
  • Identify and resolve performance bottlenecks, scalability challenges, and security risks across the entire stack.
  • Work closely with cross-functional teams, including Product, and Design to deliver high-impact features and improvements within an agile development environment.
  • Conduct thorough code reviews, uphold best practices, and contribute to a culture of technical excellence. Provide mentorship and guidance to less experienced developers when required.
  • Contribute to the ongoing evolution of the platform by identifying areas for improvement and proactively suggesting and implementing new technologies and methodologies.
What You Bring
  • 5+ years of full-stack development experience, demonstrating proficiency in both frontend and backend systems and services, with a strong emphasis on building scalable and maintainable applications.
  • Proven experience with Go (Golang) or other modern programming languages (e.g., Node.js, Python, Ruby, C#) in production environments, particularly in designing and implementing robust APIs and backend systems.
  • Solid understanding of frontend development using React and TypeScript, with experience building responsive, high-performance web applications.
  • Familiarity with database management (SQL/NoSQL), and experience integrating databases with backend systems.
  • Strong knowledge of RESTful services, with exposure to GraphQL being an advantage.
  • Experience with automated testing and CI/CD pipelines, ensuring high-quality, reliable code.
  • Excellent problem-solving skills, with the ability to debug, optimize, and refactor complex systems.
  • Strong communication and collaboration skills, with experience working in remote teams and an agile environment.
  • A proactive, self-driven mindset with a desire to continuously learn and improve.
  • Familiar with agentic coding.
Compensation and Benefits
  • Full-time, salaried position
  • Salary range $155,000 - $175,000 CAD based on experience and location
  • Remote role from Canada
  • Flexible time off and holidays to support work-life balance
  • Company-provided equipment and tools
  • Comprehensive benefits package, including healthcare, dental, life, and long-term disability