--- title: "Ramón Chancay on Upwork" description: "Top Rated Plus, $50K+ earned and 14 completed jobs: client reviews, contract history and the case studies behind the Upwork portfolio." author: Ramón Chancay lang: en canonical: https://www.ramonchancay.me/upwork --- # Ramón Chancay on Upwork Top Rated Plus, $50K+ earned and 14 completed jobs: client reviews, contract history and the case studies behind the Upwork portfolio. Profile: https://www.upwork.com/freelancers/devrchancay - BADGE: Top Rated Plus · identity verified - EARNED: $50K+ through the platform - JOBS: 14 completed · 9 fixed price, 5 hourly ## What clients wrote when the contract closed. > Very knowledgeable and dependable Production stabilization of an AI health platform, web and mobile (Feb – Jun 2026), 5/5 > Ramón es un profesional con mucha experiencia en desarrollo de apps. Siempre ayuda con visiones adicionales a lo solicitado y tiene alto compromiso con el desarrollo React Native + Firebase MVP, fixed price (Apr – Jun 2026), 5/5 Reviews are left by the client when a contract ends and I can neither edit nor hide them. All seven, including the ones without a written comment, are on the profile. ## How clients hire me there. - 9 / 5 Fixed price / hourly: Fixed price when the scope can be written down (an MVP, a launch, a migration). Hourly when the work is ongoing or the problem still has to be found, like a production rescue. - 14 months Longest engagement: React Native development for an agency, from March 2024 to May 2025. Long relationships with the same client are most of what the profile is made of. - 2 Clients who came back: Two clients opened a second contract after the first one closed: one to stabilize the platform I had launched, one to estimate the next block of work on their app. - 2 Contracts in progress: A full-stack system for a bowling business and the base architecture for a company’s AI solutions, both since September 2026. ## The contracts, one by one. ### Mobile apps - Mobile app for a digital twin product (Jul – Sep 2026) - React Native + Firebase MVP, built from scratch (Apr – Jun 2026) - Production stabilization of an AI health platform (Feb – Jun 2026) - iOS and Android launch of an AI wellness app (Jan 2026) - Voice interaction in React Native with Whisper and TTS (May – Jun 2025) - Mobile and web app development (Nov 2024 – Jun 2025) - React Native developer for an agency (Mar 2024 – May 2025) ### Web, full-stack and rescues - Full-stack system for a bowling business (in progress) (Since Sep 2026) - Full-stack developer for an audio tech product (Apr 2026) - Task estimation for a sports academy platform (Oct – Dec 2025) - Bilingual debugging of a React Native + Node.js app (Oct 2025) - Urgent debugging of a React application (Aug – Sep 2025) - Figma designs converted into a React/Gatsby template (Nov 2024 – Jan 2025) ### AI - Base architecture for AI solutions (in progress) (Since Sep 2026) Titles are summarized in my words and client names are left out. The original posting, the dates and each review are on the profile. ## From the Upwork portfolio, told in full here. - [ArcaVida](https://www.ramonchancay.me/mobile/arcavida): AI health platform on web and mobile: the launch, then four months of production work. - [Clona](https://www.ramonchancay.me/ai): B2B platform for AI agents with 3D video avatars, a vector-search knowledge base and WhatsApp, voice and web channels. - [Pet-Meet](https://www.ramonchancay.me/mobile/pet-meet): iOS and Android app for finding lost pets, with a live map and smart QR collars. - [Utrack](https://www.ramonchancay.me/projects): Order tracking for logistics operations, with a client portal and WhatsApp notifications. - [Voice booking agent](https://www.ramonchancay.me/labs/elevenlabs-cal-demo): Voice AI that books appointments against a live calendar. - Also on the Upwork portfolio: Open English: Chat by OE, Open English: Year in Review 2024, Tropical Records, Medicosv, Don Cicleto ## Frequently asked questions ### Can I hire Ramón Chancay on Upwork? Yes. Ramón Chancay is a Top Rated Plus freelancer on Upwork with identity verified, more than $50K earned on the platform and 14 completed jobs building React Native apps, web platforms and AI products. You can send him an invitation from his profile at upwork.com/freelancers/devrchancay, or message him directly first and move the contract to Upwork afterwards. ### Is it better to hire him through Upwork or directly? For a first project he recommends Upwork. On fixed-price contracts the money stays in escrow until you approve each milestone, on hourly contracts every hour is logged, and if there is a dispute Upwork mediates. Clients who already know how he works sometimes move to a direct contract; the way of working is the same either way. ### What does Top Rated Plus mean on Upwork? It is the badge above Top Rated. Upwork awards it to freelancers with consistently high client satisfaction, a sustained earnings history and larger or longer contracts, and it recalculates it periodically. Ramón does not apply for it or control it; the platform assigns it from his contract history and client feedback. ### Does he work fixed price or hourly on Upwork? Both. Of his 14 completed jobs, 9 were fixed price and 5 hourly. Fixed price suits a scope that can be written down, like an MVP or an app launch; hourly suits ongoing work and production rescues where the problem has to be found first. ### What kind of projects has he done on Upwork? Mostly React Native apps for iOS and Android (MVPs, launches, production stabilization, voice features with Whisper and TTS), full-stack web work with React, Next.js and Node.js, urgent debugging of existing apps, and AI architecture. He works with founders and agencies in English and Spanish. ## Contact If you already have a job post, send me an invitation and I will reply the same day. If you would rather talk first, tell me in two or three lines what you want to build and we can open the contract on Upwork once the scope is clear.