Ramón Chancay is a full-stack web and mobile developer based in Guayaquil, Ecuador, with over 13 years of professional experience shipping production software. He specializes in React, Next.js, React Native, and AI-augmented products including RAG systems, LLM integrations, and conversational agents. Since 2019 he has worked as an independent contractor serving 50+ clients across Ecuador, the United States, Spain, and Mexico — fully remote. He is Top Rated on Upwork with 100% Job Success. His shipped projects span SaaS platforms, streaming services, hospital management systems, health apps, and AI agent platforms. He is available for long-term full-stack engagements and can be reached at hola@ramonchancay.me.
Fast, accessible, maintainable web platforms. I design the architecture, build the front-end and wire the backend — from idea to production deploy.
Mobile apps that feel native on iOS and Android from a single codebase. I cover the full cycle: product, build, OTA updates and store releases.
LLMs applied to real product, not demos. I integrate OpenAI, Anthropic and Gemini models with your data and flows — with a focus on cost, latency and evaluation.
More than a decade shipping product across web, mobile and AI left me something more valuable than a stack: judgment. If your team is stuck on a technical decision, evaluating a stack, or wants a second opinion before sinking months into a direction — let's talk.
