Facundo P.
React Native & Next.js Engineer | Supabase, Stripe & AI | Live Apps
I build and ship production apps with React Native (Expo) and Next.js: 8 products for startups in 6 countries, 6 of them live on the App Store, Google Play and Huawei AppGallery. If you have an MVP built with Lovable, Cursor or Claude Code that now needs to hold up in production, or a mobile app that has to reach the stores, that is the work I do every day. WHAT I DELIVER - Mobile apps with React Native / Expo: EAS builds, store submission, OTA updates, offline-first sync - Web platforms with Next.js (App Router) on Vercel - Backends on Supabase (Postgres, row level security, Edge Functions) or Node.js / Express - Payments and subscriptions with Stripe - AI features with OpenAI, Anthropic and Gemini APIs, tool calling and MCP - AI-built MVPs taken to production: code audit, security, multi-tenant data isolation, tests and CI/CD RECENT WORK - Investamind (Puerto Rico): investing-education app live on the App Store, with Face ID sessions, a realtime community and subscriptions - UR POV (South Africa): local discovery app live on Google Play and Huawei AppGallery, built from scratch and still maintained - Happiness To Go (US): wellness and habits app live on the App Store, built with Expo, Supabase and RevenueCat subscriptions - Horus Surgical (US): AI patient-education platform for cataract surgeons, migrated from Supabase/Vercel to AWS, now in a hospital pilot - Anchor (US): offline-first task planner with SQLite sync, subscriptions and an admin panel - Festival PRO (UK): one React Native codebase shipping two branded festival apps - EstudialoAI (Spain): AI study tutor on Next.js + Gemini with Stripe plans HOW I WORK - Claude Code is part of my daily workflow for speed, and I review and test every change before it ships - Weekly demos and clear written updates. Fluent English, based in Argentina with full overlap with US hours - Top Rated Plus, 4,300+ hours on Upwork Send me your repo or your idea and my first reply will tell you how I would approach it.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $31k
Billed in all: $137,268$137k
$2.9k in the last 6 months
Across 13 contracts
Across 29 contracts
Earnings, last 30 days
Skill rankings: Top 2% in Firebase
Ranked by MRR among everyone on Upwork with the skill.
- #20Expo.io581 freelancers · 🇦🇷 #1Top 3%🇦🇷#1 of 6
- #97Stripe3,151 freelancers · 🇦🇷 #1Top 3%🇦🇷#1 of 20
- #128Firebase6,978 freelancers · 🇦🇷 #1Top 2%🇦🇷#1 of 34
- #144Supabase4,116 freelancers · 🇦🇷 #2Top 3%🇦🇷#2 of 27
- #150Android App Development6,395 freelancers · 🇦🇷 #2Top 2%🇦🇷#2 of 18
- #163iOS Development6,533 freelancers · 🇦🇷 #2Top 2%🇦🇷#2 of 10
- #218AI App Development4,708 freelancers · 🇦🇷 #1Top 5%🇦🇷#1 of 15
- #231Mobile App Development8,511 freelancers · 🇦🇷 #2Top 3%🇦🇷#2 of 23