Ryan Orban

Secure workspace chatbots: RBAC-aware retrieval and agentic pipelines over regulated data. The prototypes worked. The buyers were about two years out. I returned the remaining capital and wrote up what I’d learned about red-teaming, data governance, and evals instead of raising again.

Product and infrastructure for a network of 150+ senior ML practitioners. Made scoping and delivery repeatable instead of re-invented per engagement. Ran tech lead duty on client work: LLM prototyping, recommenders, data platforms.

Ranking, matching, and funnel analytics for a job marketplace: Elasticsearch with Learning to Rank, BERT embeddings, Bayesian A/B tests. Every one of them graded on a single outcome — whether the person got hired.

Three years overland through North, Central, and South America.

Bootstrapped the first immersive data science program in the US: ten people, $1M+ of revenue in year one, 91% placement, graduates into Tesla, Facebook, and Google. Galvanize acquired it, and I stayed on as CTO to run engineering, curriculum, and platform across campuses.

Distributed systems first, then the field. Designed and deployed $100M+ of virtualization clusters for Army, Air Force, and intelligence customers — rooms where “it usually works” is not an answer anyone accepts.

Run one agent on one task enough times and it branches. Moirai lines those runs up, finds the branch points, tests which choices actually predicted success, and exports the survivors as preference data. Run against SWE-rebench:

Runs analyzed

12,854

Mixed-outcome tasks

1,096

Preference pairs

11,006

Source What the variation reveals

A green test run on a stochastic system is one sample, not a verdict. Cerberus treats every invocation as a Bernoulli trial, runs a sequential probability ratio test to decide when it has seen enough, and reports a Wilson interval against your release bar — as an exit code your CI already understands.

Source The argument for it

A solar-powered server in San Francisco hosts sequoia.garden and reports on itself: state of charge by coulomb counting off an INA228 shunt, plus voltage, load average, and temperature. I did the solar install, the current-sensing circuit, and the hardened Raspberry Pi it runs on, and built the software stack with Camille Teicheira — after Low-tech Magazine's solar-powered site. Sequoia Fabrica is a volunteer-run community workshop.

Live readout

Bay Area event discovery: several sources scraped into one searchable calendar. A static snapshot ships with this site.

Open the calendar Source

Strangers name public playlists after feelings. This plays them back anonymously — 725 stations curated down from 13,190 distinct names across 22,000 results, with the overlaps counted where several people independently landed on the same name and the same songs.

Listen

Every SF 311 complaint, ranked and mapped as though the city's worst-reviewed corners were attractions.

Open the map

An interactive light sculpture — 14 by 9 by 9 feet of stainless steel, acrylic, and 3,500 LEDs that visitors drive from buttons inside it. Built with Taylor Dean Harrison and Henry Richardson; Burning Man Honoraria grant, 2016.

The piece