Paul John Butad / AI Engineer & Founder
From the Philippines, with a lot of coffee.
I'm Paul. I build AI systems, evaluate what works, and use that feedback to make them better.
Still solving people's problems
with technology & design.
PioneerDev.AI / Quality
90% fewer
Production AI chat regressions after introducing LLM-as-a-judge evaluations.
Relative regressions after evaluation
Egoist Labs / Mentor time
20–30 min
One mentor. Five learners. Differentiated lesson planning and task assignment, with AI.
Egoist Labs / Curriculum
Capability Studio supports updates for each 3–6-month cohort.
PioneerDev.AI / Delivery
Currently building Egoist Labs
AI engineering · Evaluation · Learning systems
01 / Selected work
From AI learning systems
to my own little coffee business.
Founder · Dec 2025 — Present
Learning systems that connect skill-based curricula, AI-assisted planning, and a clearer picture of learner progress.
Explore Egoist LabsA feedback loop, built into the work.
The web projects that got me here.
Bringing live cafe experience to the comfort of your home
Browse Top Games and Streams from popular platforms like Twitch & Youtube
Code. Coffee. Boxing.
02 / The person behind the code
Self-taught. Still curious.
Still figuring things out by
building.
I started with websites and interfaces. These days, I build agentic systems, evaluate AI behavior, and work on learning tools at Egoist Labs.
The thread through all of it: solving people's problems with technology and design. Outside the code? Coffee, boxing, and rap music.
manual regression testing timeQuantrics · Test automation
system costsProsple · Production system redesign
A little more context.
03 / Notes from the process
Written down, in case
they help someone else.
Do you hate NextJS and/or Vercel? Then, you probably don't understand these tools
I know you've been searching for TS tutorials online. But, still can't figure out how to get started? I got you! 🤛
These 3 big mistakes are preventing you from writing your own code. Here's how you fix them 👌
