Full Stack Engineer

Optimyze1; Montreal; On-site; CAD 120,000 - 160,000; Full time

Job summary

An innovative AI start-up in Montreal is seeking a hands-on Full Stack Engineer to help build impactful products. You will take ownership of both front-end and back-end features, collaborating with the team to shape the roadmap. The ideal candidate has strong experience with React, TypeScript, Node.js, and is authorized to work in Canada. Join a mission-aligned team dedicated to solving real-world problems.

Qualifications

• 3+ years of full-stack software engineering experience.
• Startup experience or SaaS company background.
• Legally authorized to work in Canada.

Responsibilities

• Build core product features from the ground up.
• Own front-end and back-end components.
• Collaborate directly with product and design.

Skills

React

TypeScript

Node.js

Python

AWS

SQL optimization

HTML

CSS

Job description

This range is provided by Optimyze1. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

CA$120,000.00 / yr - CA$160,000.00 / yr

Direct message the job poster from Optimyze1

Talent Acquisition [Tech(SaaS) / Climate-Tech / Sustainability] I help companies hire amazing talent & people make their careers incredible

Optimyze 1 is partnering with an innovative AI start-up. We're looking for a hands-on Full Stack Engineer ready to roll up their sleeves, solve real-world problems, and help shape the future of this product.

If you're looking for a role where you can make an impact, innovate, and build programs from scratch we'd love to hear from you !

• Please note that Sponsorship is not possible for this opportunity

We need an experienced, self-driven engineer — someone who’s built real products end-to-end, ideally at high-growth startups or major tech companies. You should be comfortable taking ownership of complex features, architecting solutions, and coding across the stack.

If you're a generalist who thrives in a fast-paced, ambiguous environment — this is your role

What You’ll Do

Build core product features from the ground up

Own front-end and back-end components — design, code, deploy, and maintain

Collaborate directly with product and design to shape the product roadmap

Make meaningful decisions on architecture, scalability, and performance

Contribute to a culture of learning, ownership, and technical excellence

3+ years of full-stack software engineering experience

Startup experience or SaaS company background — you’ve built things fast, at scale

Deep experience with React, TypeScript, and modern front-end tooling

Strong back-end skills — working with Node.js, Python, or similar

Knowledge of HTML, CSS, and CSS frameworks

AWS infrastructure knowledge, including serverless architecture (Lambda, API Gateway)

Proficiency with relational databases (PostgreSQL, MySQL) and SQL optimization

Strong computer science fundamentals (algorithms, system design, debugging)

Excellent communication skills and a collaborative mindset

Legally authorized to work in Canada (Citizen, PR, Open Work Permit)

Why Join?

You’ll work directly with founders, shaping the product and company from the ground up

Real ownership : your code will ship fast and be used immediately

Solve tough technical challenges that directly impact the real world

Be part of a smart, driven, and mission-aligned early-stage team

Seniority level

Mid-Senior level

Employment type

Full-time

Industry

Software Development

Referrals increase your chances of interviewing at Optimyze1 by 2x.

Get notified about new Full Stack Engineer jobs in Montreal, Quebec, Canada .

J-18808-Ljbffr