Fah Yik Yong

Full-Stack Dev | AI Integrations | 10 years Exp

Salary / Daily rate

Paris, France

Freelance

Can come onsite

Skills

TypescriptReact NativeNodeUX Product DesignNextFlaskDjangoPythonReactAzureGoogle Cloud PlatformJavascriptBackend DevelopmentFrontend DevelopmentFullstack DevelopmentMobile DevelopmentKubernetesAWSSQL databasesUI Product Design

Languages

English (Native)FrenchChineseGerman

About me

Intro

Full-stack developer with nearly 10 years in the industry, specializing in backend (Node.js/TypeScript) with 4+ years in React & React Native. Recently focused on AI integrations, adding LLM-powered features like AI recommendations, chat, and automation into real products. I built Jumo (heyjumo.com), an AI-powered nutrition app on web and mobile. Clean, scalable code with a focus on best practices. Let's connect to discuss how I can help you achieve your goals!

Links

Work experience

Frontend developer

The Mobile-First CompanyFreelance

Jul 2025 - May 2026

11 months

Paris, France

Built Allo’s AI-powered telephony desktop application from the ground up

Backend developer

MuchoFreelance

Dec 2024 - Mar 2025

4 months

Paris, France

CTO

Tango

Jul 2023 - Sep 2024

1 year 3 months

Paris, France

Marketplace for intergenerational connections • React native (Mobile front-end) • https://apps.apple.com/fr/app/tango-aide-%C3%A0-domicile-seniors/id6462143725 • https://play.google.com/store/apps/details?id=com.jointango.app • Node.js (Express backend)

Product Engineer

Amie

May 2022 - Apr 2023

1 year

Remote, OR 97458, USA

from POC to 1000 DAUs 🚀 • React (NextJS) • Node.js (Express) • Postgresql • Docker / Kubernetes

Spendesk

Apr 2019 - Jan 2022

2 years 10 months

Paris Area, France

Software Engineer (Web Backend)

Apr 2019 - Jan 2022

2 years 10 months

Paris Area, France

Squad Lead

Nov 2019 - Jun 2021

1 year 8 months

FELFEL - good food at work (We are hiring!)

Jul 2015 - Mar 2019

3 years 9 months

Lead Engineer

Nov 2016 - Mar 2019

2 years 5 months

• Responsible for all backend systems (Python Django/Flask, C# .NET) • Led systems migration from monolith to distributed event based services (python + rabbitMQ) • Set up new infrastructure on Openshift (Kubernetes) • Set up single identity access and management with Keycloak • Shared responsibility for development of revamped proprietary logistics and distribution systems to allow for business expansion • Rebuilt inventory, ordering and payment processes previously optimized for business operations to also meet accounting and audit requirements • Implemented and laid foundation for FELFEL's engineering best practices (standardised protocols, version control, agile workflow, etc.)

Tech Development (Full Stack Engineer)

Jul 2015 - Nov 2016

1 year 5 months

• Developed and maintained all of FELFEL’s end-customer and backoffice web applications – backend on REST architecture in C# ASP.NET and Python Django, frontend in AngularJS • Implemented unique logistics and inventory processes at FELFEL in C# ASP.NET, reducing work time in sorting processes and allowing tracking of every single product through its life-cycle • Designed and implemented demand forecasting with supervised learning at FELFEL in Python, automating process and significantly reducing food waste • Assisted in design and production of FELFEL refrigerators – custom hardware with single board android computer and sensors


Education

ETH Zürich

Master's Degree, Energy Science and Technology

2013 - 2015

3 years

focus on sustainable technologies

National University of Singapore

Bachelor of Engineering (BEng), Mechanical Engineering

2008 - 2012

5 years

CentraleSupélec

Engineering

2011 - 2011

1 year

Student Exchange Programme

The best place to find your next move

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