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Software Engineer Startup Jobs in Ontario (NOW HIRING)

Palona AI

AI Software Engineer, Product

Toronto, ON · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

We are looking for a product-focused AI Software Engineer to turn advances in AI into restaurant ... Comfort working directly with users and operating in a fast-changing startup environment. * AI ...

hireVouch

Software Engineer

Toronto, ON

The Company Our client is a Toronto-based cybersecurity startup helping companies manage ... The Team Their engineering team builds and runs the entire platform: product features ...

THOMSON REUTERS

Staff Software Engineer - AI II

Toronto, ON · Hybrid

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

As a Staff Software Engineer (AI), you'll architect and prototype AIdriven systems-multiagent ... Track record of rapid prototyping, moving from idea proof of concept at startup speed. Preferred

Basetwo

Software Engineer, Full Stack

Toronto, ON · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

Basetwo provides manufacturing engineers with a low code AI platform that helps them troubleshoot ... Have a startup mentality: team player, self-motivated, high-integrity, pragmatic, resourceful, can ...

THOMSON REUTERS

Principal Engineer, CoCounsel

Toronto, ON

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Principal Software Engineer -CoCounsel CoCounselis our most advanced AI offering to date ... Think ownership of a startup with the runway of a public company. * Technical leadership and cross ...

Sage Recruiting

Embedded Engineer

Toronto, ON · Hybrid

$130K - $150K/yr

... an early-stage startup building automation and robotics for high-precision scientific ... You'll work closely with our existing software engineer and have immediate impact on the things ...

THOMSON REUTERS

Principal Engineer

Toronto, ON · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Principal Software Engineer -CoCounsel CoCounselis our most advanced AI offering to date ... Think ownership of a startup with the runway of a public company. * Technical leadership and cross ...

Calliere

... startup and the rigor of a mature tech organization. \n \n \n The Role \n \n \n This is a ... Engineer robust storage solutions capable of handling rapidly expanding volumes of time\-series and ...

Fortive

Software Developer

Mississauga, ON

Our Developers bring passion, craftsmanship and innovation to the development and delivery of ... We are a global industrial technology innovator with a startup spirit. Our forward-looking ...

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Showing results 21-40

All JobsSoftware Engineer Startup JobsSoftware Engineer Startup Jobs in Ontario

Software Engineer Startup information

What are the key skills and qualifications needed to thrive in the software engineer startup position, and why are they important?

To thrive as a Software Engineer in a startup environment, you need solid programming skills, a problem-solving mindset, and a degree in computer science or related experience. Familiarity with agile methodologies, cloud platforms, version control (like Git), and rapid prototyping tools is highly valued, and startup engineers may also benefit from exposure to full-stack development. Adaptability, effective communication, and the ability to work independently in uncertain environments are standout soft skills. These competencies enable engineers to rapidly iterate on products, effectively collaborate across small teams, and contribute to the dynamic demands of a growing company.

What is a software engineer startup?

A Software Engineer Startup job involves developing, testing, and maintaining software in a fast-paced, early-stage company. Engineers in startups often wear multiple hats, working on both backend and frontend development, infrastructure, and sometimes even product decisions. The role requires adaptability, problem-solving skills, and the ability to work with limited resources. Unlike larger companies, startup engineers may need to prototype quickly, iterate based on user feedback, and contribute to the overall growth strategy. This position is ideal for those who enjoy dynamic environments and taking ownership of projects.

What can I expect from the daily work environment as a software engineer at a startup?

Working as a Software Engineer at a startup typically means you'll be part of a small, agile team where roles and responsibilities can shift quickly based on company needs. You'll often participate in daily stand-ups, collaborate closely with founders or product leads, and have the opportunity to contribute ideas beyond your core coding tasks. The pace is usually fast, and you'll likely wear multiple hats, working on everything from prototyping new features to troubleshooting production issues. This hands-on, collaborative atmosphere provides excellent opportunities for skill growth, creative problem-solving, and making a visible impact on the company's direction.

What are the most commonly searched types of Software Engineer Startup jobs in Ontario?

The most popular types of Software Engineer Startup jobs in Ontario are:

What are popular job titles related to Software Engineer Startup jobs in Ontario?

For Software Engineer Startup jobs in Ontario, the most frequently searched job titles are:

What job categories do people searching Software Engineer Startup jobs in Ontario look for?

The top searched job categories for Software Engineer Startup jobs in Ontario are:

What cities in Ontario are hiring for Software Engineer Startup jobs?

Cities in Ontario with the most Software Engineer Startup job openings:

Software Engineer Startup jobs near you
Infographic showing various Software Engineer Startup job openings in Ontario as of August 2026, with employment types broken down into 2% Internship, 92% Full Time, 2% Part Time, and 4% Contract. Highlights an 93% In-person, 2% Hybrid, and 5% Remote job distribution.

AI Software Engineer, Product

Palona AI

Toronto, ON • On-site

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 4 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.