Loop Engineer in San Francisco

Human in the loop. All about tech that has to survive first contact.

I did my time at FAANGs as a SWE and FDE / Partner Engineer, then a stint in VC. Some stealthy startup time. Now I build apps with my AI interns, with a lot of verification (renmants of my time in DevEx).

Portrait of Rox dT

Recent Projects

AI Deployment Calculator project thumbnail
Web app

AI Deployment Calculator

A calculator to size AI deployments before buying hardware. It estimates VRAM needs and recommends GPUs depending on task, on model size, quantization, batching, and framework overhead.

LoopGate Harness thumbnail
Developer tool

LoopGate Harness

A quality-driven loop harness for agents. It loops agents through verification gates, leaving engineers free to scheme.

Web app

Comfyday

For teens, for fun. A tiny weather-to-outfit app for what to wear today. Enter a ZIP code, check weather, get a weather-specific outfit.

Intent Inference Conference project thumbnail
AI eval case study

Inference Conference

Three AIs walk into a frontier lab. This is what happened.

What I Care About

Thoughtful adoption, not hype. Minimalism, not line count. Evidence, not guesses. And moves regardless of the crowd. Curious about: AHI (agent-human-interaction), the evolution of evaluations, and the practical mess of using AI to build.

Loops Everything comes full circle. Fresh context, clear specs, commiting, and quality. In life and in code.
Evaluation that bites Measure the path, audit the source, and treat confident wrongness as worse than refusing to guess.
Practicality Elegance in less. Clear interfaces. And enough empathy that the next human gets it.

Find Me

repos, writeups, and artifacts.