After Hudson River Trading
- 5%Founded something4
- 16%Joined a startup12
- 16%Joined a big company12
- 62%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Hudson River Trading most often go to Jane Street, Five Rings and Citadel. Of them, 5% found something next and 16% go somewhere small. The median tenure is 3y
Not Hudson River Trading's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 110 people on a map of 67,181, No. 214 on it by people. Updated September 30, 2026.
- People on the map
- 1100.2% of everyone on the map
- There now
- 3633% of the people here
- Moved on
- 7467% of the people here
- Median tenure
- 3ymiddle half 8m to 4y 6m
Put Hudson River Trading side by side with another employer.
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Meta. Most leave for Jane Street (8% of recorded departures).
30 of 108 recorded arrivals shown, 78 more from 66 other companies31 of 77 recorded departures shown, 46 more to 40 other companies
How long people stay
28%<1y
12%1-2y
25%2-4y
32%4-7y
3%7y+
60 stays with both a start and an end on the record.
Who comes and goes, by year
<3<314
<3<315
4316
7617
4418
7419
9620
191121
312122
211623
10824
6525
4<326
joined left2026 is a partial year
2014 to 2026: 125 joined, 90 left.
Caliber
89mediantop 10%97
0Eng Scorer caliber, 82 scored99
Titles held here
- Software Engineer23
- Software Engineer Intern23
- Algorithm Developer10
- Algorithm Engineer8
- Algorithm Developer Intern5
- Core Developer5
- Winter Intern5
- Algorithm Engineering Intern4
8 most common titles, by people who held them.
First job on the record for 6% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 18%Exceptional15 people
- 46%Strong38 people
- 23%Solid19 people
- 12%Emerging or unproven10 people
82 of the 110 people here carry an Eng Scorer tier.
53 of the 82 people here with a read sit in exceptional or strong, the top two of the five tiers, 65%. A tier is the band a caliber score falls in, so this is the same measurement as the median on the caliber card, opened up. A tier holding fewer than 3 people is printed with the one next to it, because that few is a person rather than a pattern.
Whether a title rose here
The level of the first title recorded here, against the last.
44%Titles that rose34 of 78 classified people
- 44%Rose34 people
- 56%Stayed level or fell44 people
78 of the 110 people here had a title that could be placed on the ladder before and after.
A title rose when the last title recorded here sits higher on the ladder than the first. For someone with one title here who then left, it's measured against the first title of their next role. The ladder runs intern, junior, mid, senior, staff or manager, principal, director, VP, then founder or C-level. Titles that match no rung are left out rather than guessed, and product, program and project managers are left out entirely as a different ladder. What's left leans towards people who have left: someone still here on one recorded title has nothing to measure against. A direction holding fewer than 3 people is printed with the one next to it, because that few is a person rather than a pattern.
Where they studied
- MIT25.9%
- Stanford12.0%
- University of Waterloo9.3%
- Carnegie Mellon6.5%
- Georgia Tech5.6%
- Columbia4.6%
- Harvard4.6%
- UC Berkeley3.7%
The 8 most listed schools among the 108 people here with a school on file.
28 of the 108 people here with a school on file list MIT, 13 list Stanford and 10 list University of Waterloo. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
29%have a public GitHub account on their profile
32 of the 110 people here whose profile was checked for public accounts. An account the check missed reads the same as no account, so this is a floor.
31% is the median across the 857 companies that can show this figure.
Where they are now
64% of the people who have worked at Hudson River Trading and list a location live in New York today, against 18% of everyone on the map.
Hudson River Trading
Everyone on the map
- 64%New York70 · map 18%
- 24%SF Bay Area26 · map 41%
- 4%Washington DC4 · map 13%
- 9%Somewhere else10
All 110 people who worked at Hudson River Trading list a location, and every share here is over them.
Where they live now, from the profile as it reads today, not where they sat while working at Hudson River Trading: a metro here isn't an office there. The lower strip is the same metros across the whole map.
On the same resumes
Companies that show up most often alongside Hudson River Trading, at any point in a career.
Key facts
- 110 people on the Zelcast alumni map have worked at Hudson River Trading: 36 are there now, 74 have moved on.
- Most leave for Jane Street: 6 people, 8% of recorded departures. Then Five Rings and Citadel.
- Most arrive from Meta: 8 people. Then Google and Citadel.
- Median tenure at Hudson River Trading: 3y, middle half 8m to 4y 6m.
- Of the people with a recorded next move after Hudson River Trading, 5% went to a founder title next, 16% joined a company of 200 or fewer, and 16% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 89 on the 0 to 99 scale, across 82 scored people.
- Most common title held here: Software Engineer, then Software Engineer Intern.
- Top school: MIT, listed by 28 of the 108 people here with one on file (25.9%). Then Stanford (13).
- 64% of the 110 people here who list a location live in New York today, against 18% across the map. Where they live now, not the office they sat in while they worked here.
- 29% of the 110 people here whose profile was checked for public accounts have a public GitHub.
About this data: built from 352,028 jobs across 67,181 engineers in the Zelcast network and Eng Scorer reads, updated September 30, 2026. A move counts when the next role starts within 24 months of leaving. Companies under 20 people on the map aren't shown, and destinations under 3 people fold into the totals. Caliber is the Eng Scorer score.
Worked at Hudson River Trading? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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