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Added 1 month ago
Staff Engineer (Product)
Later
Vancouver, BC
Built on a native, AI-powered platform and more than a decade of proprietary data - including billions of social interactions, impressions, and $2.4B+ in verified influencer-driven…
Added 2 months ago
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Senior Software Developer
Cavtera
Ottawa, ON · Kanata, ON
- Full-time
Experience with React, React Native, or other modern web/mobile frameworks.
Added 2 months ago
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Senior Software Developer, Full-Stack (Client experience)
Dialogue
Montreal, QC
- Full-time
Willingness to work with React Native, Python, databases, and cloud infrastructure is required.
Added 2 months ago
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Intermediate Software Develope
Cavtera
Ottawa, ON · Kanata, ON
- Full-time
Familiarity with React, React Native, or other modern web/mobile frameworks.
Added 2 months ago
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Développeur Shopify (Shopify Developer)
Retailogists
Montreal, QC
- Full-time
We're looking for a Shopify Developer to join our team and take ownership of complex, client-facing e-commerce builds and migrations. You'll be an owner on Shopify and other projects - both…
Added 2 months ago
AI-First Product Manager (Agency Experience; LA-based hybrid role)
TribalScale
Toronto, ON
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)
Added 2 months ago
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AI Product Designer
TribalScale
Toronto, ON
- Full-time
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)
Added 1 month ago
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Senior Software Engineer, QA
Unity Technologies
Montreal, QC · CAN-Montreal
- Full-time
…software capabilities, including optimized display utilization, native input integration, and platform-specific…
Added 2 months ago
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Senior Design Engineer
AssemblyAI
Canada
- $180,000 to $240,000 USD / year
- Full-time
…interested in what exceptional product design looks like in an AI-native, developer-facing…
Added 2 months ago
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Senior Software Engineer (Backend)
Motion
Remote, Canada
- Full-time
- Remote
Motion is building the command center for creative strategists: an AI-native platform that bridges the gap between performance marketers and creative teams, so they can uncover what’s…
Added 2 months ago
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Software Engineer
The MRG Group
Toronto, ON
- $85,000 to $130,000 CAD / year
- Full-time
Manage infrastructure. Handle infrastructure-as-code changes, secrets management, and environment configuration so services are cloud-native and secure.
Added 2 months ago
Software Engineer, Full-Stack Applications Associate Director (Ratings Technology)
Fitch Group
Toronto, ON
…experienced software engineer with deep expertise in .NET and React, strong software engineering fundamentals, and a passion for building scalable, reliable, and user-focused…
Added 1 month ago
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Software Development Manager
Autodesk
Toronto, ON · Montreal, QC · AMER - Canada - Ontario - Toronto - University Ave
- Full-time
Provide technical guidance for applications and services built using JavaScript, React, Node.js, Express, databases, AWS, and serverless technologies
Added 2 months ago
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Mobile Developer - React Native
Highspring
Montreal, QC
- Full-time
We are currently seeking a React Native Developer to contribute to mobile and front-end development efforts across several large-scale modernization and integration programs within a…
Added 2 months ago
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Specialist Programmer
Infosys
Calgary, AB
- Full-time
Java, Spring Boot and Microservices, Angular/React JS, Docker and K8S.
Added 2 months ago
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Senior Director, Engineering - Corporates, Financial Institutions & Sovereigns
Fitch Ratings
Toronto, ON
- Full-time
…in analytical processes, agentic automation, or AI-augmented developer tooling, bring the depth to evaluate, architect, and champion these capabilities with real technical conviction. If…
Added 2 months ago
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Mobile Developer
Highspring
Montreal, QC
- Contract
We are currently seeking a React Native Developer to contribute to mobile and front-end development efforts across several large-scale modernization and integration programs within a…
Added 2 months ago
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Senior Product Designer
AssemblyAI
Canada
- $180,000 to $240,000 USD / year
- Full-time
…interested in what exceptional product design looks like in an AI-native, developer-facing…
Added 2 months ago
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Senior Software Developer - Full Stack Web Application
CIeNET Technologies
Markham, ON
- $100,000 to $150,000 CAD / year
- Full-time
Position: Senior Software Developer - Full Stack Web Application Development
Added 2 months ago
Software Engineer, Full-Stack Applications, Associate Director
Fitch Group
Toronto, ON
…experienced software engineer with deep expertise in Java and React, strong software engineering fundamentals, and a passion for building scalable, reliable, and user-focused…
Added 2 months ago
Senior Agentic Engineer - JavaScript
TribalScale
Toronto, ON
Mobile & Web Development: (iOS, Android, React Native, React, Node.js)
Added 2 months ago
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Software Engineer – Mobile (React Native)
Haventree Bank
Toronto, ON
- Full-time
Haventree Bank is seeking a talented React Native Mobile Developer to design and build exceptional native mobile experiences for our iOS and Android banking applications. In this role, you…
Added 2 months ago
Lead Software Engineer, Full-Stack Applications - Innovation Teams
Fitch Group
Toronto, ON
…agentic systems and intelligent platforms using Java/Springboot, REACT, and emerging AI technologies that fundamentally change how analysts work and how Fitch…
Added 2 months ago
Sr. Software Development Engineer in Test (Agentic)
Dialpad
Vancouver, BC
Experience testing distributed, cloud-native SaaS systems and APIs.
Added 2 months ago
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Product Engineer - Full-Stack Developer
Liftoff
Montreal, QC
- $70,000 to $110,000 CAD / year
- Full-time
Feature delivery across the stack in TypeScript, from React Native screens to Supabase data

Liftoff

Product Engineer - Full-Stack Developer

Montreal, QC, Canada

$70,000 to $110,000 CAD / year · Full-time

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Job details

Pay: $70,000 to $110,000 CAD / year
Job type: Full-time
Posting language: English
Posted: Aug 14, 2026

Original job description

💡About Liftoff Our Mission: Making the world a better, 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 $8M+ ARR in under two 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 If you think you’re a great fit, please send your resume, LinkedIn/X profile, past projects, and a few lines on your interest to [email protected]

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More about this job

Responsibilities

Develop and ship end-to-end product features and experiments using a TypeScript stack from React Native to Supabase. Focus on high-velocity experimentation, pixel-perfect UI implementation, and maintaining backend reliability and performance.

Requirements

Requires professional full-stack experience with strong TypeScript proficiency and comfort with both modern front-end frameworks and relational databases. Candidates must demonstrate a high eye for detail and experience with experimentation infrastructure like feature flags and A/B testing.

Skills

TypeScript
React Native
Expo
Node.js
Postgres
Supabase
A/B Testing
Schema Design
API Development
Event Tracking
Figma
Vercel
tRPC
Statsig
RevenueCat
Full-Stack Development

Benefits

Cash Compensation
Equity Compensation
Company-paid lunch
Lifetime Liftoff Pro membership

Visa sponsorship

Not detected in the job text

Keywords

TypeScript
React Native
Expo
Supabase
Vercel
tRPC
Node.js
Postgres
Statsig
RevenueCat
Superwall
Figma
Rive
A/B Testing
Feature Flags
Full-Stack
API
Schema Design
Event Tracking
Gamification
Fitness App
Consumer Apps
LTV
ARPU
Subscription
UX Design
System Design
Backend Reliability
Frontend Development
Experimentation

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