Brent IbañezEmail me

Give me a messy problem. I'll ship the product.

Full-stack engineer in Manila. I take products from idea to production across mobile, web, backend, and AI.

What I've shipped

Identity and device security

Identity verification and hardware-backed device checks, shipped in a regulated mobile app on iOS and Android.

Mobile and web, one codebase

The shared app library behind the iOS, Android, and web apps, plus the dashboards operators run the business from.

Services and real-time

Go and TypeScript services, live notifications over WebSockets, moderation tooling, and workers at the edge.

Applied AI

Tokentrace traces every LLM call for cost and latency. Yumi runs a voice agent entirely on your own devices.

Projects

The Tokentrace landing page

Tokentrace

LLM observability for OpenAI, Anthropic, and Gemini. Two lines of code trace every call with cost and latency, and personal data is stripped before anything is stored.

  • TypeScript
  • ClickHouse
  • Postgres
  • Redis
Yumi, a cat-shaped voice companion

Yumi

A voice agent for the Mac that does real work in your apps, with an Android phone as an encrypted remote. All of the AI runs on your own devices.

  • macOS
  • Android
  • Local LLMs

Experience

  1. Full Stack DeveloperPisomind Inc.
    Jun 2025 - Present
  2. Software EngineerStreckenheld
    Oct 2025 - May 2026
  3. Full Stack EngineerOuicall
    Nov 2024 - May 2025
  4. Software EngineerACF Solutions
    May 2024 - Oct 2024
  5. Software Engineer InternDICT Region 6
    Jun 2024 - Aug 2024
  6. BS Computer Science, Summa Cum LaudeUniversity of St. La Salle
    2021 - 2025

Got a hard problem to ship?

I like hearing about them. Email is the fastest way to reach me.