Notes

Field notes on quant talent. Where it comes from, where it goes, what it costs, and the firms that built it. Written between searches, not for traffic.


Latest

AmazonTwo SigmaDE Shaw Researchthe rest of the street D.E. Shaw, 1988

01Cohort2026.06.08

The house of quants, and everywhere it went

D.E. Shaw hired scientists in 1988 and accidentally built the most valuable alumni network in finance. Track where they landed.

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AmazonTwo SigmaDE Shaw Researchthe rest of the street D.E. Shaw, 1988

01Cohort2026.06.08

The house of quants, and everywhere it went

D.E. Shaw hired scientists in 1988 and accidentally built the most valuable alumni network in finance. Track where they landed.

QUANT LABS

02Cohort2026.05.25

The quants are leaving for the machine god

For thirty years the smartest math kids went to trade. A growing share now gardening-leave their way to AI labs. Names, numbers, and what it means.

internjuniorsenior QRPM / carry invisible

03Data2026.05.11

What the quant firms actually pay, 2026

H1B filings, intern disclosures, and a leaked sovereign-wealth pay grade. Where the money sits, by role, seniority, and city.

no CEO

04Profile2026.04.27

The anarchist commune that runs on OCaml

Jane Street has no CEO, hires people who have never seen a market, and writes everything in a language almost no one else uses. It is one of the most profitable firms on earth.

capped at ~$10B ~66% gross / yr

05Profile2026.04.13

The firm that refused to hire anyone who knew finance

Jim Simons built the best track record in market history by banning Wall Street experience and hiring codebreakers instead. Then he closed the fund to everyone but his own staff.

A EV > 0

06Profile2026.03.30

The poker table that became a trading firm

Susquehanna trains every new hire on poker before it lets them near a market. The founder calls it a training ground, not a game.

RenaissanceD.E. ShawJane StreetSusquehanna hire ability, teach markets

07Thesis2026.03.16

Nobody good hires finance people

The four most successful quant firms ever built share one hiring rule, and it is the opposite of what every job posting asks for.