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Front End Developer Startup Jobs in Ontario (NOW HIRING)

Palona AI

AI Software Engineer, Product

Toronto, ON

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

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.

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.

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.

Localcoin

Java Backend Developer

Etobicoke, ON · Hybrid

CA$100K - CA$135K/yr

If you're a self-starter looking to hone your skills in a startup environment that fosters ... Collaborate with UI teams to ensure seamless front-end and back-end interactions, optimizing for ...

Trellis

Senior Full Stack Developer

Kanata, ON · On-site

... startup. We are a B2B SaaS company that provides an AI-powered software platform for eCommerce ... Have 5 years of experience in a frontend, backend, or full stack role. * Programming experience in ...

Voyis

Full Stack Developer - Short Term

Waterloo, ON · Remote

CA$100K - CA$120K/yr

Profile and optimize application performance (memory usage, rendering, IPC communication, startup ... Experience with a modern frontend framework (React) * Comfortable with Git-based workflows and CI ...

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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 Aug 18, 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 August 2026, with employment types broken down into 100% Full Time. Highlights an 67% In-person, and 33% Remote job distribution, with an average salary of $120,226 per year, or $57.8 per hour.

AI Software Engineer, Product

Palona AI

Toronto, ON

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 7 days ago

Job description

We are looking for a product-focused AI Software Engineer to turn advances in AI into restaurant products that work reliably in the real world. You will build across customer-facing experiences, backend services, agent workflows, integrations, and evaluation systems. The job begins with a customer or product problem and ends when the solution is operating successfully in production-not when a model call works locally.

You may work on voice ordering, reservations, catering, restaurant operations, client configuration, analytics, or entirely new agent capabilities. You will collaborate directly with product, design, customer-facing teams, and restaurant operators; make fast product and technical tradeoffs; and own the quality of the resulting experience.

Our stack includes Python and FastAPI services, PostgreSQL, TypeScript, React and Next.js applications, real-time voice agents built with LiveKit, cloud infrastructure on AWS, and modern LLM, speech, and multimodal providers. Exact stack match is less important than full-stack range, product judgment, and a record of shipping.


What you'll own
  • Build and ship end-to-end AI product experiences from problem discovery and prototype through launch, measurement, and iteration.
  • Develop customer-facing interfaces, backend APIs, data models, agent tools, and integrations as one coherent product.
  • Design agent workflows that combine models, context, memory, business rules, deterministic services, and human escalation.
  • Work directly with restaurant and internal users to understand failures, uncover unmet needs, and convert feedback into reusable product capabilities.
  • Integrate with POS, reservation, messaging, telephony, and other external systems while handling imperfect data and real operational constraints.
  • Build evaluations, instrumentation, guardrails, and feedback loops so probabilistic behavior can be measured and improved.
  • Improve latency, reliability, accuracy, usability, and cost across the full experience-not only within one layer of the stack.
  • Use AI-native development workflows to prototype and deliver quickly while retaining ownership of architecture, tests, security, and correctness.
  • Participate in product and technical planning, make tradeoffs explicit, and drive decisions when the path is ambiguous.
  • Raise the quality of nearby systems through code review, documentation, design discussion, and pragmatic refactoring.

Requirements

  • 3+ years of industrial experience in relevant technical domain.
  • Strong software engineering fundamentals and experience shipping production web or platform products.
  • Depth in either Python/backend engineering or TypeScript/React frontend engineering, plus the ability and desire to work effectively across the full stack.
  • Experience building with LLMs, speech models, computer vision, or agent systems beyond a toy prototype.
  • Product judgment: you can simplify scope, identify the highest-leverage user problem, and distinguish an impressive demo from a valuable product.
  • Experience designing APIs, data models, asynchronous workflows, and integrations with external systems.
  • A strong quality bar for testing, observability, security, reliability, and user experience.
  • Comfort working directly with users and operating in a fast-changing startup environment.
  • AI-native working habits paired with independent technical judgment.

Benefits

  • Competitive Salary and Stock Option Plan.
  • Medical, dental, vision, retirement, leave, and disability benefits as applicable.
  • Family Leave
  • Short Term & Long Term Disability
  • Paid time off and company holidays.
  • Learning and development support.

Apply