EECS · UC Berkeley · Class of 2028
Seth Raphael
About
The story so far.
I started teaching myself to code five years ago out of boredom during class, and when COVID pushed everything online that idle tinkering became a full-time fixation: first one Python course, then another, and another after that.
I built LinkJoin from scratch: 2,000+ registered users, 75+ countries, a US trademark, a patent pending, and a message from Zoom's CEO calling it "a breath of fresh air." I spoke at the EDUCAUSE Annual Conference as the youngest presenter in the event's history.
Now I'm studying Electrical Engineering and Computer Science at UC Berkeley, focused on machine learning, distributed systems, and AI interpretability. I've done ML research at UCSF on songbird language acquisition, and I'm currently interning at Wander, building infrastructure for autonomous AI deployment.
Experience
Where I've worked.
- Build secure execution environments for AI agents using enforceable contracts, decreasing agent task drift.
- Create service toggles to route requests between real and mock servers, reducing compute and simplifying testing.
- Implement canary routing to redirect traffic between servers by header, isolating failures before they spread.
- Automate testing and Kubernetes deployment using GitHub Actions across repositories.
- Grew platform to 2,000+ users and 4,000+ monthly visitors from 75+ countries.
- Spoke on 9 EdTech podcasts and featured in 10+ articles including EdSurge, J Weekly, and EdTech Digest.
- Registered US trademark for LINKJOIN issued 1/16/2024; non-provisional patent pending, filed 12/28/2022.
- Youngest presenter in EDUCAUSE Annual Conference history, Start-Up Alley, Philadelphia.
- Categorized and labeled songbird vocalizations using DeepSqueak in MATLAB.
- Compiled and processed data to show familial patterns, identifying how birds develop language from tutors vs. parents.
- Managed hybrid AV infrastructure to livestream weekly services, adult education classes, and events to 300+ families.
- Led a team of 6 tutors teaching 100+ children in grades 2–6 Hebrew reading, preparing students for B'nai Mitzvot.
Work
Things I've built.
LinkJoin
Full-stack virtual meeting aggregator with 2,000+ registered users and 4,000+ monthly visitors across 75+ countries. Built on real-time websockets with Argon2 end-to-end encryption and one-time token auth. US trademark registered; patent pending.
ExplorePython
Python learning platform where students write real code from the first lesson rather than reading about it. Reached 3,000 monthly visitors and placed as an EdTech Digest Cool Tool Award finalist.
Recipe Transformer
Character-level transformer built from scratch in PyTorch, trained on millions of recipe examples. Uses a custom tokenizer and sliding window dataset pipeline for batched next-token prediction, with multi-head self-attention via learned Q, K, and V projections.
MNIST Polysemanticity
Tested the relationship between hidden layer dimensionality and polysemanticity in a 2-layer MNIST classifier, finding results consistent with superposition theory as described in Anthropic's "Towards Monosemanticity." (April 2026)
Recognition
Awards & press.
Stack
What I work with.
Contact
Let's build
something.
Likely hiking, running, lifting, coding, eating, or sleeping. Best reached by email.