AI / ML Engineering
CS + MATH · STANFORD37.4275°N · 122.1697°W

Dean
Barrow

CS and Math at Stanford. I'm currently building applied AI tools at Apple. Most of my work is machine learning: training models, building the pipelines around them, and figuring out why they behave the way they do.

01Experience

Where I've worked

Roles across AI, ML, and research

  1. Apple

    Applied AI Software Engineer Intern
    • Working on applied AI and ML tooling focused on product quality
    Applied AIMachine LearningProduct Quality
    Jun 2026 — Present
    Cupertino, CA
  2. Felicis

    Venture Fellow
    • Analyzed different deals and dug into what each team was building
    • Organized events for the Stanford campus and for Felicis
    VentureDiligenceEvents
    Jan 2026 — May 2026
    Menlo Park, CA
  3. Perplexity

    Campus Partner
    • Ran events and grew the community of students using Perplexity at Stanford
    • Carried student feedback back to the team so it actually reached the product
    CommunityAIGrowth
    Sep 2025 — Dec 2025
    Stanford, CA
  4. Scale AI

    Machine Learning Engineering Intern
    • Built and improved evaluation pipelines that measured how models actually performed
    • Focused on model quality, catching the edge cases that quietly degrade a system
    Machine LearningEvaluationModel QualityPython
    Oct 2024 — Aug 2025
    San Francisco, CA
  5. Stanford CURIS

    Researcher, Empirical Security Research Group
    • Built security validation tools for ZDNS, Stanford's fast DNS measurement tool
    • Measured how DNS behaves across the internet to find where security assumptions break down
    ResearchZDNSDNS SecurityGo
    Jun 2024 — Sep 2024
    Stanford, CA
  6. TreeHacks

    Organizer
    • Worked on logistics, sponsors, and the hacker experience for a weekend of over a thousand people
    • Handled the year of planning that the weekend ran on
    CommunityOperationsEvents
    Oct 2023 — May 2024
    Stanford, CA
  7. Jane Street

    Academy of Math and Programming
    • Worked through algorithms and probability with people from the trading floor
    • Built a lot of the quantitative foundation I still use
    AlgorithmsProbabilityMath
    Jul 2023 — Oct 2023
    New York, NY
  8. Fermilab

    Particle Physics Researcher
    • Analyzed experimental data to pull real signal out of a lot of noise
    • It's where I first started working with messy experimental data at scale
    C++Data AnalysisPhysics
    May 2021 — Jun 2023
    Batavia, IL
02FocusStanford CURIS

Most of my work is machine learning applied to real systems.

Day to day that means training models, building the pipelines that feed them, and digging into why they behave the way they do. I like that you can measure whether something actually works.

The same interest led me to research at Stanford, where I spent a summer with the Empirical Security Research Group measuring how real systems behave in the wild. Model or network protocol, I like building the tools that turn messy behavior into something you can reason about.

03Selected Work

A few things I've built

Each one is open source, links on GitHub

More on GitHub