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Felix Lambert

Lead Mobile Engineer · React Native · Kotlin · React

• Toronto, Ontario, Canada
• lambertfelix8@gmail.com
• linkedin.com/in/felix-lambert-6870b720a
• github.com/felix-lambert

Summary

Lead Mobile Engineer with 10+ years in front-end and mobile development. I have shipped and led React Native and Kotlin products for fintech, HR tech, cloud gaming and my own app with 40k+ downloads, and I am as comfortable mentoring a team as I am in the code. Bilingual English/French, based in Toronto, open to lead or senior mobile roles, on-site or remote.

Skills

Mobile

React Native · Expo · TypeScript · Kotlin · Android SDK · Swift (basics) · Native modules & bridges · App Store & Google Play releases · Flipper

Web

React · Redux · JavaScript (ES6+) · GraphQL · HTML · CSS & Flexbox · Tailwind CSS

Back end & cloud

Node.js · Firebase (Cloud Functions · Firestore) · REST & GraphQL APIs · MQTT · Redis · Linux

Delivery & leadership

CI/CD (GitHub Actions · Microsoft App Center) · Git · Code review · Mentoring · Technical design · AI-assisted development

Experience

1. Jun 2025 – Jul 2026

   Lead Mobile Engineer

   Chexy · Toronto

   Toronto fintech that lets renters pay rent by card and build credit

   • Led a team of five mobile developers, splitting my time 60/40 between technical leadership and hands-on development.
   • Mentored engineers, ran code reviews and coordinated cross-team work with product, backend and design.
   • Translated complex fintech requirements into clear technical designs and delivery plans.

   React Native · TypeScript · Fintech · Leadership

2. Jun 2024 – May 2025

   React Native Engineer

   Folks HR · Québec · remote

   Human Resource Information System (HRIS) for Canadian SMBs

   • Developed the mobile application of a modern HRIS, focused on a seamless experience for HR professionals and employees alike.
   • Delivered features end to end in React Native and TypeScript, working closely with the product and backend teams.

   React Native · TypeScript · HR tech

3. Nov 2019 – Jun 2024

   Founder & Lead Mobile Engineer

   EmptyMyFridge · Toronto · Paris

   AI-driven anti-food-waste app, still live and maintained today

   • Conceived, built and shipped the app from scratch on iOS, Android and web; enter the ingredients you have, get recipes.
   • Grew it to 40k+ downloads and about 150 daily users, rated 4.5★ on the App Store and 4★ on Google Play.
   • React Native and TypeScript front end, Firebase Cloud Functions (Node.js) back end, migrated to the React Native New Architecture.

   React Native · TypeScript · Firebase · Node.js · Founder

4. Feb 2023 – Jun 2023

   Mobile Engineering Trainer

   OnTrain Corp. · Paris · remote

   • Trained junior developers in React Native, Java and Kotlin, covering native bridges, debugging with Flipper and day-to-day project workflow.

   React Native · Kotlin · Java · Training

5. Sep 2017 – Mar 2023

   Lead Mobile & Front-end Engineer

   Freelance via Malt · Paris

   "Supermalter 3", the highest status on Europe's leading freelance platform, for consistently top-rated missions

   • Epsor (Feb 2022 – Mar 2023) — Led React Native development of an employee-savings and retirement app on a GraphQL API; built the mobile CI/CD with GitHub Actions and Microsoft App Center.
   • Blade / Shadow (Sep 2018 – Nov 2019) — React front end for a high-performance cloud-gaming service; owned daily operations of the launcher app used by about 100,000 people and set up its CI/CD pipelines.
   • Recast.AI (now SAP Conversational AI) (Sep 2017 – Sep 2018) — React and Redux front end for a chatbot-building platform, through the company's acquisition by SAP.

   React Native · React · GraphQL · CI/CD

6. Feb 2020 – Mar 2021

   Kotlin & React Native Engineer

   DisMoi · Paris

   Browser extension and mobile app that surfaces fact-checking while you browse

   • Built an Android accessibility service in Kotlin, including the on-screen info-bubble feature; the code is open source.
   • Hands-on with the Android SDK, Android Studio, Gradle, Java and Kotlin.

   Kotlin · Android SDK · React Native · Open source

7. Apr 2017 – Oct 2017

   Front-end Developer

   Vizeat · Paris

   Social-dining marketplace

   • Front-end development with React, Redux, HTML and CSS (flexbox).

   React · Redux · CSS

8. Sep 2016 – Mar 2017

   Front-end Developer

   CityTaps · Paris

   Prepaid smart water meters bringing running water to urban homes in emerging countries

   • Developed the cloud service for IoT-connected water meters, with MQTT for real-time data transmission and front-end display.

   IoT · MQTT · JavaScript

Education

• Master's degree in Computer Science
  Epitech, Paris · 2015
• Master's degree in Philosophy of Science
  Paris-Sorbonne University (Paris IV), Paris · 2008

Languages

• French · native
• English · fluent, bilingual

Last updated September 17, 2026 · felix-lambert.github.io/cv/