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Added 2 months ago
A
Cloud Platform - Senior Engineer
Aptiv
Ottawa, ON
- Full-time
…high-performing individuals that can learn and contribute to these full software stack solutions to fulfill the strict requirements of edge computing use cases from security to high…
Added 2 months ago
CI
Senior Software Developer - Full Stack Web Application Development
CIeNET International
Markham, ON
- Full-time
Position: Senior Software Developer - Full Stack Web Application Development
Added 2 months ago
Senior Python Developer
Ampliwork
Montreal, QC
…important, we are primarily looking for a strong senior Python engineer who knows how to build reliable, scalable enterprise…
Added 2 months ago
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Software Engineer, Full Stack
Gigi
Toronto, ON
- Full-time
We're hiring an AI Builder - a full stack software engineer - to join our engineering team in Toronto and own end-to-end feature development for Gigi, our AI agent.
Added 2 months ago
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Software Engineer III/Senior Software Engineer (Full Stack)
Workday
Vancouver, BC
- Full-time
As a Full Stack Software Engineer in Agent Factory, you’ll help build the user-facing and platform experiences that bring Workday’s AI agents to life. Working within a small,…
Added 2 months ago
S
Frontend / UX Engineer - Robotics Data Operations, Kitchener, ON
Siemens
Kitchener, ON
- Full-time
Are you a frontend or full-stack engineer who enjoys creating intuitive interfaces for complex technical workflows? Do you want to design user experiences that help engineers, researchers,…
Added 2 months ago
LT
Senior Full-Stack Engineer
Landjourney Technologies
Montreal, QC
- $160,000 to $170,000 CAD / year
- Full-time
This is a genuine full-stack role, and we mean both halves of it. You will own features end to end: the Angular screens a lender actually uses, the FastAPI services behind them, and the…
Added 2 months ago
ES
Generalist Software Engineer - EA Sports FC
EA SPORTS
Vancouver, BC
- Full-time
As our Games Software Engineer you will report to the team's Development Director. You will work on complex problems with Producers, Designers, Artists and other Engineers in domains…
Added 2 months ago
T
Forward Deployed Agile Software Engineer
TribalScale
Toronto, ON
- Full-time
Design and build AI-enabled applications, agentic workflows, developer tools, APIs, data pipelines, and full-stack products.
Added 2 months ago
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Software Engineer, Product (Fullstack)
Badge
Vancouver, BC
- $140,000 to $170,000 CAD / year
- Full-time
This role is perfect for a full-stack engineer who thrives on ownership, loves collaborating across disciplines, and gets energized by seeing their code directly impact customer success and…
Added 2 months ago
K
Senior Software Engineer, AI
Klue
Toronto, ON
- $140,000 to $230,000 CAD / year
- Full-time
We're looking for a Senior Software Engineer to join our team in Toronto, focusing on building and optimizing state-of-the-art LLM-powered agents that can reason, plan and automate…
Added 2 months ago
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Sr. Software Engineer
Felix
Remote, Canada
- $125,000 to $160,000 USD / year
- Full-time
- Remote
Have 3+ years of experience as a full-stack software engineer, building scalable web applications
Added 2 months ago
B
Senior Software Engineer, Web
Binance.US
Remote, Canada
- $174,487 to $205,332 CAD / year
- Full-time
- Remote
…company from Binance.com and utilizes its innovative technology stack under a licensing…
Added 1 month ago
C
Senior Java Developer – Vice President
Citi
Mississauga, ON
- Full-time
6+ years of professional software engineering experience, with at least 3 years focused on modern full-stack development.
Added 2 months ago
T
Fullstack Engineer (Java)
TEKsystems
Toronto, ON
- $80 to $90 CAD / hour
- Contract
We are seeking an experienced Senior Full Stack Application Developer to join a dynamic technology team responsible for building and enhancing enterprise-level applications. This role is…
Added 2 months ago
CO
Staff Software Engineer
Capital One
Toronto, ON
- Full-time
161 Bay Street (93021), Canada, Toronto,Toronto, Ontario,Staff Software Engineer
Added 2 months ago
C
Sr. Product Manager - Identity Protection (Hybrid)
CrowdStrike
Toronto, ON
- Full-time
…when an identity is compromised: understanding an identity's full digital footprint and the assets and other identities it connects to, finding where risk concentrates, prioritizing what…
Added 2 months ago
S
Senior Full Stack Engineer
Structurely
Canada
- Full-time
Senior Fullstack/Backend engineer with high agency to own and evolve our backend services. You’ll build reliable, scalable systems that support real-time, high-throughput workloads…
Added 2 months ago
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Product Engineer - Full-Stack Developer
Liftoff
Montreal, QC
- $70,000 to $120,000 CAD / year
- Full-time
We're hiring a Full-Stack Engineer to ship product features and experiments end-to-end. Your core focus areas:
Added 2 months ago
B
Staff Software Engineer
Braze
Vancouver, BC
- Full-time
Extensive Software Engineering experience: 7+ years of professional experience, including hands-on work in full-stack development or back-end services, particularly with high-scale,…
Added 2 months ago
S
Staff Software Engineer - SaaS / Healthcare / Agentic
Sycle
Vancouver, BC
- Full-time
We are seeking a Staff Software Engineer to serve as the technical anchor for our team as we pivot to an AI-driven, agentic development workflow. Much of our code is PHP but this role will…
Added 2 months ago
GS
Software Engineer (Python) - PricingCenter
Guidewire Software
Mississauga, ON
- Full-time
Experience with full-stack development with Typescript and React is a plus.
Added 2 months ago
U
Senior Full Stack Engineer
UST
Toronto, ON
- Full-time
UST is searching for a Senior Full Stack Engineer with strong Front End expertise to help build and scale high‑impact digital platforms used by millions of users. This is an opportunity to…
Added 2 months ago
VC
Senior / Intermediate Full Stack Engineer (Backend-Leaning)
Valsoft Corporation
Remote, Canada
- Full-time
- Remote
…that operate at scale. We’re looking for a backend-leaning Full Stack Engineer who enjoys solving meaningful product problems, designing thoughtful systems, and shipping high-quality…
Added 2 months ago
OI
Senior Game Backend Engineer
Offworld industries
New Westminster, BC
- $110,000 to $135,000 CAD / year
- Full-time
- Temporary
…to do the same. We are looking for a talented Game Backend Engineer to take technical ownership of our live-service game’s microservice backend. You will play a critical role in…

Liftoff

Product Engineer - Full-Stack Developer

Montreal, QC, Canada

$70,000 to $120,000 CAD / year · Full-time

Apply About employer

Applications open in a new tab.

Job details

Pay: $70,000 to $120,000 CAD / year
Job type: Full-time
Posting language: English
Posted: Aug 14, 2026

Original job description

💡 About Liftoff

Our Mission: Making the world a healthier place by gamifying fitness

Liftoff is the Duolingo of fitness, empowering anyone to start and stay at the gym so they develop healthier, more powerful habits.

We’re a mission-driven team that moves fast, owns the details, and does the work. We’re fully bootstrapped, profitable, and built from zero to $10M+ ARR in under three years.

🌟 About the Team

You'll join the Product team and work closely with the Head of Product, collaborating with Engineering, Design, and Growth

Our product is the engine behind everything: retention, monetization, and ultimately revenue.

This role is for someone who wants end-to-end ownership over backend reliability and experiment velocity, and loves shipping.

🎯 About the Role

We're hiring a Full-Stack Engineer to ship product features and experiments end-to-end. Your core focus areas:

Feature delivery across the stack in TypeScript, from React Native screens to Supabase data
Polished, correct UI, shipped to the standard of the design, not an approximation of it
Experiment infrastructure and instrumentation
Clean, performant API and data access
Cross-functional shipping with Product, Design, and Growth

This is a high-ownership role. You'll take a problem from spec to shipped, work with our existing team/resources, and own the outcome, not just your slice of it.

✅ What Success Looks Like

Features and experiments that go out end-to-end without stalling on handoffs
UI that ships pixel-correct and feels right; spacing, states, edge cases, and transitions handled without needing a review pass to catch them
A high-velocity experiment pipeline: clean instrumentation → fast implementation → reliable measurement → iteration
A product that stays fast and stable as usage grows; schema changes land safely, queries stay efficient
Shipped improvements that compound (reusable experiment patterns, better event tracking, faster deploys, fewer incidents)
Strong operating cadence with crisp communication on what's shipping, why, and what it did

🛠️ What You’ll Do

Ship features end-to-end
- Build the front end in TypeScript with React Native (Expo); typed, readable, and maintainable by the next person
- Implement designs faithfully: correct spacing and type, all states (loading, empty, error), and the edge cases the mock doesn't show
- Write and run migrations and deploy schema changes safely; keep the data model clean as the product grows
- Stay conscious of load and performance - catch the slow query or the runaway request pattern before users do
Ship experiments and instrumentation
- Partner with Product/Growth to implement A/B tests and feature flags via Statsig
- Ensure every experiment has clean event tracking and reliable data
- Build reusable patterns that reduce experiment cycle time
Use data to drive decisions
- Instrument events properly so the team can trust experiment results
- Spot measurement issues (leaky cohorts, misconfigured flags, underpowered tests) before they corrupt decisions
Collaborate cross-functionally
- Work with Product and Growth to align experiment implementation with the roadmap
- Work with Design to turn Figma into shipped UI in React Native / Expo
- Contribute to prioritization by bringing technical feasibility and effort estimates

🔍 You’ll Likely Succeed If You Have

We don’t expect you to check every box. We care most about ownership, judgment, and shipping.

Professional full-stack experience shipping to production
Strong TypeScript - it's the language of the whole stack here, front end included
Comfort on both sides: modern front-end (React / React Native or similar) and Node.js against a relational database (Postgres preferred)
A real eye for detail; noticing unwanted 4px gaps, missing empty states, animation stutters, and fixing it without being asked
Working knowledge of schema design, migrations, and query performance, enough to make changes safely without needing a specialist
Hands-on experience with experimentation infrastructure: feature flags, A/B tests, event tracking
Demonstrated ability to ship autonomously in a fast-paced, low-structure environment
Clear written communication; can document decisions, write specs, and share learnings

🌱 Bonus Attributes

UX instinct - you can tell when a flow doesn't feel right, not just when it doesn't match the spec, and you can articulate why and push back on a design
Experience with our specific stack: Supabase, Vercel, tRPC, Statsig, RevenueCat
Background in subscription/consumer apps - understanding of trials, paywalls, LTV, ARPU
Experience with AI-assisted development workflows
Prior experience at a fast-moving startup where you wore multiple hats
Motion/animation implementation (Rive or similar)

🧰 Tools & Tech Stack

You don't need prior experience with every tool, but you should be excited to learn and ship in this stack.

Language: TypeScript, end to end
App: React Native (Expo)
Frontend: Figma, Rive
Backend: Supabase, Vercel, tRPC, Node.js
Monetization: RevenueCat, Superwall
Experimentation / Analytics: Statsig

🙌 At Liftoff, You’ll Enjoy

Autonomy and Ownership: you are in charge of your time at Liftoff. Decide what you want to do, align with leadership, and go for it.
Top-of-the-Market Cash & Equity Compensation: we pay for high performers.
A World-Class Team: low-ego, high standards, and real ownership.

🤝 Interview Process

Hiring Manager Screening
Take-Home Challenge (backend task + frontend implementation)
Technical Deep Dive (live walkthrough + system design extension)
Work week trial (paid - simulating real work environment)

💰 Compensation and Benefits

Competitive cash (based on level and scope)
Company-paid lunch every day (if you’re in office)
Lifetime Liftoff Pro membership

🌍 Equal Opportunity

Liftoff is an equal opportunity employer. We hire and grow talent based on strengths, potential, and performance, and we are committed to building an inclusive environment where everyone can do their best work.

🚀 To Apply, We Want

Your portfolio showing projects, games, or apps you've built
Your resume, and LinkedIn/Github profile
A few lines on why this role

Apply About employer

More about this job

Responsibilities

You will ship end-to-end product features and experiments using TypeScript, React Native, and Supabase. You will also collaborate with the Product, Design, and Growth teams to ensure high-quality UI and reliable data instrumentation.

Requirements

The role requires professional full-stack experience with TypeScript, React Native, and relational databases. Candidates should demonstrate strong ownership, attention to detail, and the ability to ship features autonomously in a fast-paced environment.

Skills

TypeScript
React Native
Expo
Supabase
Node.js
Postgres
A/B testing
Feature flags
Statsig
API development
Data modeling
UI design
Instrumentation
Performance optimization
RevenueCat
tRPC

Benefits

Competitive cash compensation
Equity compensation
Company-paid lunch
Lifetime Liftoff Pro membership

Visa sponsorship

Not detected in the job text

Hiring contact

Noa

Hiring contact email

noa@liftoffrank.com

Keywords

TypeScript
React Native
Expo
Supabase
Vercel
tRPC
Node.js
Postgres
Statsig
RevenueCat
Superwall
Figma
Rive
Full-stack
A/B testing
Feature flags
Instrumentation
Schema design
Migrations
Performance optimization
Product engineering
Growth
UI/UX
Subscription apps
LTV
ARPU
AI-assisted development
Startup
Data modeling
API

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