Case studies

Senior Frontend / Product Engineer · AI Products & Developer Tooling. Four builds with ownership, architecture and tradeoffs — not screenshots.

• HumanCore Advisor — 0→1 product core for executive coaching: real-time shared context, structured LLM UI, and the API path when a feature crossed the client.
• AI Pull Request Reviewer — A GitHub Actions reviewer that extracts the diff, builds context and posts review comments before human review.
• WhatsApp Sales Agent — A WhatsApp sales agent whose catalog, price and stock come from Shopify. The model does not invent a number. A human takes over when the conversation leaves the tools.
• Laika Replatforming — PHP monolith to a Next.js / GraphQL storefront so Colombia, Mexico and Chile could run on one architecture.