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Jonald Penpillo, a software developer in the Philippines, has built a complete travel suite: an online travel agency for flights, hotels and tours, a tour operator platform with a partner API, a supplier mobile app and an AI travel companion.
Proof, not promises
The Delightful Philippines storefront: flights end to end (search, add-ons, payment, void, reissue, refund), hotel prices locked server-side with supplier failover, and an operations console with revenue, refunds, markup rules, coupons and an audit log.
Stack: React 19, TypeScript, Express, Supabase, PayMongo, AWS S3
Operators build and sell tour packages: a six-step package builder, a partner API with an order state machine and duplicate-sale protection, a retrying booking bridge so a paid sale is never lost, and live trip tracking with SOS alerts.
Stack: React 19, TypeScript, TanStack Query, Express 5, Supabase, MapLibre, PWA
A phone-first app for transport, guide and accommodation suppliers: today’s trips, an on-trip safety card with SOS and live location, services and availability, and payouts after commission.
Stack: Expo, React Native, TypeScript, Express 5, Supabase, PayMongo
A travel assistant with 25 live tools (flights, hotels, tours, weather, tides, safety) and retrieval over 217 curated entries in pgvector. Answers stream as cards onto a live map, with guardrails against invented inventory and a live-model evaluation harness. Innovation Award, Top Executive Congress 2025.
Stack: Python, FastAPI, Gemini via OpenRouter, pgvector, Supabase, React
Jonald Penpillo is a software developer and AI engineer in General Santos City, Philippines, and Software Development Supervisor at Brigada Group, where he leads a team of six developers. He has shipped 15 projects, including three production AI systems in 2026, and received the Innovation Award at Top Executive Congress 2025. He works remotely with clients worldwide. Résumé · All projects · LinkedIn · GitHub
Yes. Jonald is based in General Santos City, Philippines, and works remotely with clients worldwide, in English, Filipino or Cebuano.
Yes. Every project ends with documentation, deployment and monitoring set up, and a handover session, so your team can run, change and extend the system.
Send a short description of the system you need through the project form at https://www.penpillo-jonald.online/?view=deploy or email jonaldpenpillo@gmail.com. Jonald replies with questions about your workflow, then a proposed scope and plan.