Lead React & React Native Developer

I step into complex projects to structure them, stabilize them, and scale them to the next level.

→ Let's talk about your project

References Optum Bank · UnitedHealth Group · Richemont · Hermès · Carrefour · Orange · SNCF · Groupe SEB

Approach

I don't just ship code.

I assess what's broken, set a solid architecture, align the team, and deliver.

End-to-end vision: front → back → CI/CD → cloud.

From component to production deployment.

Architecture & Structuring

Laying foundations that last. No debt, no magic.

Technical Leadership & Quality

Structuring the team, aligning practices, bringing everyone on board.

Development & Delivery

React, React Native, Next.js, TypeScript. Maintainable, performant, tested code. From MVP to scale.

AI-Augmented Productivity

Integrating AI tools into the workflow. Ship faster without cutting corners.

Trusted by

Optum Bank

Banking · Healthcare · USA

Critical banking migration Ruby → React

React.js · React Native · TypeScript · JavaScript · Azure · CI/CD

UnitedHealth Group

Healthcare · USA

Healthcare e-commerce platform rebuild

React.js · React Native · TypeScript · JavaScript · Azure · CI/CD

Richemont

Luxury · Watchmaking · Switzerland

Unified mobile/web architecture, luxury

React.js · React Native · TypeScript · JavaScript · AWS · CI/CD

Carrefour

Retail · France

Mobile cross-platform audit & strategy

Audit · React Native · Flutter · Xamarin · Ionic · CI/CD · MDM

Orange

Telecom · IoT · France

Android indoor geolocation app

Android · IoT · Jenkins · Fastlane

SNCF

Transport · Public Sector · France

Multi-platform mobile app for field agents

AngularJS · Cordova · JavaScript · Android · Windows 10

Groupe SEB

Home Appliances · IoT · France

Connected IoT device mobile apps

Android · iOS · BLE · IoT

Hermès

Luxury · Leather Goods · France

Mobile sales assistant app

AngularJS · Cordova · JavaScript · iOS

Stack & Expertise

Frontend

React.js Next.js React Native TypeScript JavaScript

Cross-cutting skills

Node.js Nest.js AWS Firebase CI/CD AI

Lead & Delivery

Front-end architecture Mobile architecture Technical audit Progressive migration Agile methodology

Design & Quality

Specifications Documentation Testing UX/UI sensibility

A challenging project? Let's talk.

Availability

Available and open to your next project

↗ linkedin.com/in/cyril-cessou

Malt

↗ malt.fr/profile/cyrilcessou