Available for React projects (Web & Mobile)

React + RN Developer

Web & mobile with React. Spec-first architecture, TypeScript, clean code that scales.

Build: Successful

0 errors • 60 FPS Fast Refresh

useEcoTracker.ts
SOLID • LIVE
// SOLID: DIP & SRP - Domain Hook
interface IGeoLocationService {
getCurrentCoords(): Promise<Coords>;
watchPosition(cb: PosCallback): Unsubscribe;
}
export const useNearbyHubs = (
geo: IGeoLocationService,
repo: IHubsRepository ) => {
const [hubs, setHubs] = useState<HubEntity[]>([]);
const [status] = useState<SyncState>('idle');
// 60FPS Reanimated 3 Worklet
const translateY = useSharedValue(0);
const pan = Gesture.Pan().onChange((e) => {
'worklet'; translateY.value = withSpring(e.y);
});
SRP / Inversion Ready TypeScript 5.3
Simulator iOS • 17.4
Claudio.dev
SOLID Architecture Layer
🌱 EcoTrack
Nearby Hub 0.8 km
Architecture & Engineering Mindset

About Claudio

React + React Native engineer crafting robust architectures, fluid mobile experiences, and scalable web platforms.

Senior
Hello & Welcome

Hi! I'm Claudio.

React Developer with 5+ years across web (Next.js, Vite) and mobile (React Native on iOS/Android). I focus on clean architecture, TypeScript, and separating business logic from UI—patterns that scale whether shipping to the browser or an app store.

I've shipped features across different companies—managing App Store and Google Play releases, implementing complex state management, optimizing cross-platform performance. Along the way, I've learned that clarity upfront (spec-first approach) saves time and rework.

I'm always exploring better ways to write code: using TypeScript rigorously, writing tests that matter, adopting workflows that reduce friction. The goal is shipping quality code consistently—pragmatic engineering that scales.

On the backend side, I've integrated REST APIs, managed GraphQL queries, and handled data synchronization between clients and servers—thinking about what the API should return vs. what the UI actually needs. I've learned to design contracts between frontend and backend that reduce friction and make both sides easier to maintain.

</>

Core Competencies

React — Web & Mobile (70/30)

REACT & STATE MANAGEMENT Foundation
React (Web & Native) TypeScript Redux Toolkit TanStack Query
MOBILE BUILD & DEPLOYMENT iOS & Android
Gradle / Android Xcode / iOS App Store & Play
WEB TECHNOLOGIES Modern
Next.js Vite GraphQL / REST APIs
TESTING & QUALITY Strict
Jest React Testing Library CI Integration
MODERN WORKFLOWS AI-Driven
Spec-First Dev Cursor / Claude Git / GitHub CI
MOBILE UI & PERFORMANCE Fluent
Reanimated Gesture Handler List Optimization

Full-Stack React

Unified architecture for web (Next.js, Vite) and mobile (React Native)—same patterns, different platforms.

Production Proven
</>

Web Platforms

Next.js, Vite, GraphQL & REST APIs—modern web platforms with TypeScript and clean architecture.

Strict Contracts

Mobile Engineering

Cross-platform iOS & Android delivery, native build configuration, and production-grade release workflows.

App Store & Play

Techtimonials

What teammates, mentors, and collaborators say about working together.

"
"

We arrived with Claudio at the same time in the company and I discovered a very nice and implied co-worker. We worked together for the french market and Claudio did his best to master the position while working with a language that is not his mother tongue; Claudio's french is excellent, both orally and written.

Mathias Dorange

Mathias Dorange

Soigneur animalier...

"
"

J'ai eu l'opportunité et ai énormément apprécié collaborer avec Claudio pendant presque qu'un an. Je peux tout d'abord témoigner de son engagement permanent et de ses remarquables qualités relationnelles. J'ai également été impressionné par la capacité de Claudio à être performant très rapidement dans un nouveau poste.

Kevin Ronzon

Kevin Ronzon

Financial Fraud...

"
"

Claudio exceeded all our expectations in his role as a Customer Support Specialist. He managed to stay productive while delivering beautiful customer experience to our Client's customers. He also created resources for the Team, showing examples of best practices.

Emina Conjar

Emina Conjar

Manager, CX | QA

"
"

Trabajar con Claudio fue una grata experiencia tanto por su amabilidad y trato cordial como por siempre mostrarse predispuesto a afrontar nuevos desafíos con entusiasmo y buscando también desarrollar sus skills técnicos y los del equipo.

Martín Fernando Bello

Martín Fernando Bello

React Developer

"
"

Tuve la oportunidad de compartir equipo con Claudio y destaco las ganas que mostro de aprender día a día. Siempre buscando la mejora continua y aceptar nuevos desafíos por mas difíciles que parezcan.

Fernando Colom

Fernando Colom

Technical Leader...

"
"

Tuve la suerte de colaborar con Claudio hacia el final del bootcamp y fue un grato placer. En él encontramos a alguien con mucha pasión y una facilidad tremenda para aprender nuevos conceptos técnicos. Rápidamente podía aportar valor al proyecto.

Juan Canals

Juan Canals

Full-Stack Engineer

"
"

Tuve el agrado de compartir con Claudio su proceso de desarrollo durante el Coding Bootcamp. Demostró en todo momento una gran predisposición a aprender y una curiosidad innata para adquirir nuevos conocimientos y mejores prácticas en su código.

Paula Dayup Nieto

Paula Dayup Nieto

Software Engineer...

"
"

I had the opportunity to work with Claudio who consistently delivered high-quality work. He has strong technical skills in mobile development and a solid understanding of building scalable and maintainable applications. A great team player.

Eduardo Rodriguez

Eduardo Rodriguez

Senior Agile PM...

"
"

I had the opportunity to work with Claudio on the mobile team and it was a great experience. He is technically strong and always focused on finding solutions. He was able to communicate with the client and help refine requirements. Claudio is responsible and great to work with.

Alejandro Morreale

Alejandro Morreale

Frontend & Mobile...

"
"

Un héroe. Nuestro héroe. Claudio siempre estaba para salvarnos cuando las papas quemaban. Sabía todo lo necesario, y lo que no, lo aprendía. Es una persona muy versátil y muy capaz, correcta con todas las letras, adaptable a cualquier situación.

Luciano Musella

Luciano Musella

CEO, Whiteboard...

"
"

Tuve el placer de estar en el mismo equipo que Claudio, me llamó mucho la atención su capacidad para aprender cosas nuevas y poder transmitirlas al equipo. También puedo destacar su cordialidad y amabilidad con las personas.

Christian Exequiel de Diego

Christian Exequiel de Diego

React js / RN...

"
"

We arrived with Claudio at the same time in the company and I discovered a very nice and implied co-worker. We worked together for the french market and Claudio did his best to master the position while working with a language that is not his mother tongue; Claudio's french is excellent, both orally and written.

Mathias Dorange

Mathias Dorange

Soigneur animalier...

"
"

J'ai eu l'opportunité et ai énormément apprécié collaborer avec Claudio pendant presque qu'un an. Je peux tout d'abord témoigner de son engagement permanent et de ses remarquables qualités relationnelles. J'ai également été impressionné par la capacité de Claudio à être performant très rapidement dans un nouveau poste.

Kevin Ronzon

Kevin Ronzon

Financial Fraud...

"
"

Claudio exceeded all our expectations in his role as a Customer Support Specialist. He managed to stay productive while delivering beautiful customer experience to our Client's customers. He also created resources for the Team, showing examples of best practices.

Emina Conjar

Emina Conjar

Manager, CX | QA

"
"

Trabajar con Claudio fue una grata experiencia tanto por su amabilidad y trato cordial como por siempre mostrarse predispuesto a afrontar nuevos desafíos con entusiasmo y buscando también desarrollar sus skills técnicos y los del equipo.

Martín Fernando Bello

Martín Fernando Bello

React Developer

"
"

Tuve la oportunidad de compartir equipo con Claudio y destaco las ganas que mostro de aprender día a día. Siempre buscando la mejora continua y aceptar nuevos desafíos por mas difíciles que parezcan.

Fernando Colom

Fernando Colom

Technical Leader...

"
"

Tuve la suerte de colaborar con Claudio hacia el final del bootcamp y fue un grato placer. En él encontramos a alguien con mucha pasión y una facilidad tremenda para aprender nuevos conceptos técnicos. Rápidamente podía aportar valor al proyecto.

Juan Canals

Juan Canals

Full-Stack Engineer

"
"

Tuve el agrado de compartir con Claudio su proceso de desarrollo durante el Coding Bootcamp. Demostró en todo momento una gran predisposición a aprender y una curiosidad innata para adquirir nuevos conocimientos y mejores prácticas en su código.

Paula Dayup Nieto

Paula Dayup Nieto

Software Engineer...

"
"

I had the opportunity to work with Claudio who consistently delivered high-quality work. He has strong technical skills in mobile development and a solid understanding of building scalable and maintainable applications. A great team player.

Eduardo Rodriguez

Eduardo Rodriguez

Senior Agile PM...

"
"

I had the opportunity to work with Claudio on the mobile team and it was a great experience. He is technically strong and always focused on finding solutions. He was able to communicate with the client and help refine requirements. Claudio is responsible and great to work with.

Alejandro Morreale

Alejandro Morreale

Frontend & Mobile...

"
"

Un héroe. Nuestro héroe. Claudio siempre estaba para salvarnos cuando las papas quemaban. Sabía todo lo necesario, y lo que no, lo aprendía. Es una persona muy versátil y muy capaz, correcta con todas las letras, adaptable a cualquier situación.

Luciano Musella

Luciano Musella

CEO, Whiteboard...

"
"

Tuve el placer de estar en el mismo equipo que Claudio, me llamó mucho la atención su capacidad para aprender cosas nuevas y poder transmitirlas al equipo. También puedo destacar su cordialidad y amabilidad con las personas.

Christian Exequiel de Diego

Christian Exequiel de Diego

React js / RN...

My Resume & Experience

Explore my detailed career background, technical certifications, and engineering experience in Frontend and Mobile app development.

Case Studies & Experiments

A showcase of mobile applications and web platforms engineered with modern stacks.

🌱
Mobile App

GreenCycle

Cross-platform ecological navigation app connecting citizens with recycling hubs, drop-off spots, and environmental community initiatives.

React Native MapLibre Reanimated Auth0 MongoDB
🎬
Web App

Movee

Movie discovery and recommendation platform featuring trending filters, curated user watchlists, and rich metadata integration.

React Tailwind CSS GraphQL NestJS
💬
Full Stack

Socially

Modern social feed platform with instant image sharing, user relationship graphs, responsive notifications, and dark mode.

Next.js Firebase Tailwind Auth
🚗
Mobile App

UberClone

Ride hailing simulation featuring Google Places autocomplete, directions routing, travel duration estimation, and ride type selection.

React Native Google Maps API Redux Tailwind
🍅
E-Commerce

Tomatelas

Full-featured drink & cocktail store with cart checkout, interactive catalog with complex category filtering, and review system.

React Express PostgreSQL Redux
🛍️
Web App

TS Shopping Cart

Type-safe e-commerce cart architecture demonstration leveraging TypeScript strict typing, optimistic UI updates, and drawer menus.

TypeScript React Material UI React Query