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AJ Stefely

About

I am a first-year student at Oregon State University. For the last two years I have been building software full time outside of school — a semantic memory system, a second install of it for business use, and an AI product that is live and has users.

The thread through all three is retrieval and honesty about it: getting the right information back out of a large pile of it, and making the system say so when it cannot. Most of what I have learned came from measuring something I assumed was working and finding out it was not.

Before software I spent five years on water polo, which is where I learned what practising something badly for a long time feels like from the inside.

Résumé →

AJ Stefely, leaning against a red painted brick wall in a white t-shirt.

Technical work

Product Development Intern · FORGE

June 2026 — present

  • Build and run Open Brain, a semantic memory system on Postgres with pgvector: capture from anything that can be linked to it — a frontend like Carrel or Docket, Gmail, Telegram, WhatsApp, documents — embeddings through OpenRouter, and a hosted MCP server that exposes the corpus to any AI assistant. Built solo, with twice-weekly check-ins for direction. Carrel is the frontend, and I use it daily.
  • Measured retrieval rather than assuming it. A harness of six probes against a real transcript took the corpus from none of them answerable to all six, by chunking with context and then reranking what came back — and set the relevance floor against a question the corpus cannot answer, so the system declines instead of confidently answering anything.
  • Researched what data and tools small-business owners actually use, and turned the finding — that every specialised tool captures well and leaks at retrieval across time — into a three-layer schema: a universal core carrying at most one interchangeable domain layer.
  • Rebuilt the whole system as a second, fully separate install for business use, so the pitch could be something a business owner recognises rather than a student's course load. Building it is also what turned the layering from a claim into a fact: same core, different domain, nothing changed below the layer boundary.

Planetary Sciences Intern · University of Oregon

Summer 2023

  • Measured crater sizes from image mosaics of Saturn's moons, working from raw data rather than a prepared set.
  • Learned Linux and Anaconda on the job, and used Python to move measurements out of QGIS into a form that could actually be graphed and analysed.
  • Worked largely independently, with a mentor reviewing results rather than directing the work.

Education

Oregon State University · Undergraduate

2026 — present

Sheldon High School · Graduated, Honors program

2022 — 2026

  • AP Biology, AP US History, AP World History
  • Honors Literature (three years), Honors Global Studies

Employment

Busser and Cook · Papa's Pizza Parlor

May 2025 — present

  • Front and back of house, through service.

Lifeguard · Willamalane

November 2023 — February 2025

  • Year-round, 10–15 hours a week alongside a full school and training schedule.

Assistant Landscaper · Brett Herman's Lawn and Garden Service

Summers 2021 and 2022

  • Grounds and yard maintenance, roughly 20 hours a week.

Water polo

I played water polo for five years — club and high school, utility and attacker — at 15 hours a week through the school year and 28 through the summer. I captained the Sheldon High School team and played varsity through the 2025–26 season, and I swam varsity alongside it. I stopped when I graduated.

  • Team captain, Sheldon High School — 2023 and 2024 seasons
  • Team MVP — 2023 season
  • USA Water Polo Junior Olympics — 2023 and 2024
  • USA Water Polo ODP Pacific Northwest regional team — 2025
  • Varsity swim, state 100m relay team — 2025