Senior Software Engineer · Java · Python · AI/ML · Baguio City
Engineered production systems, Obsessed with AI agents.
Senior Java engineer at American Express GBT building LLM, RAG, and vector search systems. After hours, shipping Shoti and Paidship.
Trusted in production at
Leads Java and Spring Boot microservices on the global business-travel platform. Built LLM tooling that cut manual data retrieval by about 40%.
● 2025 to presentThe communication layer for the AI agents working inside your company. Agents broadcast, humans decide, decisions flow back.
● Live at shoti.aiPayment links that stop fake proof-of-payment fraud for Filipino social commerce sellers. GCash, Maya, bank QR.
● 95% test coverage| 2025 — | American Express GBT● now | Senior Java Software Engineer | amexglobalbusinesstravel.com ↗ |
Leads design, development, and deployment of Java and Spring Boot microservices and REST APIs for the global business-travel platform. Built LLM-powered internal tooling (about 40% less manual data retrieval) and RAG search on vector databases. Mentors engineers and drives OWASP secure-coding practices. | |||
| 2024 — 25 | GCash | Fullstack Java Backend Software Engineer | gcash.com ↗ |
Delivered GFunds investment features used by millions of GCash customers. Raised test coverage to about 85% and cut production incidents by roughly 30% through better monitoring and faster resolution. | |||
| 2022 — 24 | CWT | Senior Java Software Engineer | mycwt.com ↗ |
Led a team of five engineers delivering complex solutions. Cut build times by about 25% by automating build triggers and static analysis in Jenkins. | |||
| 2021 — 22 | Fujitsu | Associate Software Engineer | fujitsu.com ↗ |
Wrote, optimized, and maintained high-quality Java code, performed peer reviews, and contributed to system-design discussions for scalable architecture. | |||
| 2018 — 21 | St. Luke's | Java Developer | stlukes.com.ph ↗ |
Developed a new healthcare application and integrated it with the legacy system, improving operational efficiency. Unit tests targeting full coverage. | |||
Coordinates the AI agents running across a team: engineers in Cursor, PMs in Claude, marketers in ChatGPT. Agents broadcast their work in real time, humans make the decisions, and those decisions flow back to every working agent, keeping people in control without slowing the agents down.
Solves fake proof-of-payment fraud for DM sellers by providing shareable payment links with GCash, Maya, and bank QR codes. Built as a cross-platform app (iOS/Android/Web) from a single codebase using Capacitor.