Alfonso Cartes · Senior React Native & Full-Stack TypeScript Engineer
Senior React Native expertise for products that need end-to-end ownership.
I architect, build and ship mobile products end to end—from React Native apps to the TypeScript systems and production AI behind them.
Full US Eastern-hours overlap · 9–5 ET
Based in Cyprus (EU) — working US Eastern hours (9–5 ET): full overlap for standups and pairing.
20+
years of software engineering
8+
years building with React
6+
years shipping React Native
Full stack
mobile, TypeScript systems, and production AI
20+ years of software engineering. 8+ years of React. 6+ years of React Native. Cloudflare: Workers, D1, and Workers AI.
Recent work
Selected mobile and full-stack systems, with the engineering challenge made explicit.
MobileAgorani
Solo-built 62-screen P2P marketplace: Expo app, Cloudflare backend, real-time chat, and AI-assisted listings.
MobileAbrila — Offline Sales System
Offline-first iPad sales system for 5,000+ products, connected to a separate Next.js B2B platform and shared TypeScript business logic.
MobileKukd.com — Mobile Ordering
Lead mobile engineering for a cross-platform ordering app with payments, live order status, and a Node.js API.
What I do
Senior hands-on delivery for teams that need mobile expertise without losing the full-stack picture.
Build or Rescue React Native Apps
React Native architecture, performance, offline data, native integrations, releases, and difficult upgrades.
Product Systems
TypeScript applications and APIs that support the mobile experience cleanly and reliably.
Production AI at the Edge
Useful AI features and agentic workflows running on Cloudflare infrastructure.
Focused engagement
React Native App Audit
A focused technical review of architecture, performance, reliability, and release risk—ending with a prioritized, actionable roadmap.
Engineering With Product Judgment
I bring senior engineering depth plus a founder's understanding of product, marketing, and commercial tradeoffs. That means fewer handoffs, clearer decisions, and software built around the real business problem.
You work directly with me—no account managers, subcontracting or handoffs.
Current tech stack
React / React Native
Cloudflare: Workers / D1 / Workers AI
TypeScript
Next.js / Remix
Astro
TailwindCSS
Node.js
AI Development & Agents
Need senior ownership for a mobile product?
Tell me what you're building, where it is stuck, and what success looks like.
Contracts through Wandity Ltd, an EU company. US Eastern working-hours overlap. W-8BEN-E available when required.