After Hudson River Trading
- 8%Founded something4
- 14%Joined a startup7
- 16%Joined a big company8
- 63%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Hudson River Trading most often go to Five Rings, Google and Jane Street. 8% found something next. 14% go small. Median stay 3y 1m
These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Hudson River Trading's headcount: 77 people on a map of 26,572, the No. 124 company on it by people. Updated August 20, 2026.
- People on the map
- 770.3% of everyone on the map
- There now
- 2634% of the people here
- Moved on
- 5166% of the people here
- Median tenure
- 3y 1mmiddle half 1y to 4y 6m
Put Hudson River Trading side by side with another company, every number against every number.
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Meta. Most leave for Five Rings (8% of recorded departures).
15 of 75 recorded arrivals shown, 60 more from 52 other companies16 of 52 recorded departures shown, 36 more to 30 other companies
How long people stay
24%<1y
12%1-2y
29%2-4y
33%4-7y
2%7y+
42 stays with both a start and an end on the record.
Who comes and goes, by year
0012
0013
2214
1215
2216
5417
3218
4219
7520
13721
221522
151223
6324
5525
1026
joined left2026 is a partial year
2012 to 2026: 86 joined, 61 left.
Caliber
89mediantop 10%97
0Eng Scorer caliber, 77 scored99
Titles held here
- Software Engineer19
- Software Engineer Intern19
- Algorithm Developer7
- Core Developer4
- Algorithm Developer Intern3
- Algorithm Engineer3
- Garden Leave3
- Intern3
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.
- 19%Exceptional15 people
- 47%Strong36 people
- 23%Solid18 people
- 10%Emerging or unproven8 people
77 of the 77 people here carry an Eng Scorer tier.
Exceptional and strong are the top two of the five tiers. 51 of the 77 people here with a read sit in them, 66%. A tier is the band an Eng Scorer 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 together with the one next to it, because a bucket that small is a person rather than a pattern.
Whether a title rose here
The level of the first title recorded here, against the last.
41%Titles that rose22 of 54 classified people
- 41%Rose22 people
- 59%Stayed level32 people
54 of the 77 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 who recorded one title here and then left, it is 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. A title that matches no rung is left out rather than guessed, and product, program and project managers are left out entirely, being a different ladder. That leaves 54 of the 77 people here classified, and it leans towards people who have left: someone still here on a single recorded title has nothing to be measured against.
Where they studied
- MIT19.7%
- University of Waterloo11.8%
- Stanford10.5%
- Carnegie Mellon6.6%
- Columbia5.3%
- Harvard5.3%
- Georgia Tech4.0%
- Johns Hopkins4.0%
The 8 most listed schools among the 76 people here with a school on file.
Of the 76 people here with a school on file, 15 list MIT, 9 list University of Waterloo and 8 list Stanford. A person can list more than one school, so these overlap rather than add up.
Public work
one square is one in a hundred
31%have a public GitHub account on their profile
24 of the 77 people here whose profile was checked for public accounts. An account the check did not find reads the same as no account, so this is a floor rather than a census.
Across the 325 companies on the map that can show this figure, the median is 38%.
Where they are now
77% of the people who have worked at Hudson River Trading and list a location live in New York today, against 33% of everyone on the map.
Hudson River Trading
Everyone on the map
- 77%New York59 · map 33%
- 18%SF Bay Area14 · map 47%
- 5%Somewhere else4
All 77 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 they worked at Hudson River Trading: a metro here does not mean the company has an office in it. The lower strip is the same metros across the whole map, for comparison.
On the same resumes
Companies that show up most often alongside Hudson River Trading, at any point in a career.
Key facts
- 77 people on the Zelcast alumni map have worked at Hudson River Trading: 26 are there now and 51 have moved on.
- The most common next employer after Hudson River Trading is Five Rings (4 people, 8% of recorded departures), followed by Google and Jane Street.
- The most common previous employer before Hudson River Trading is Meta (5 people), followed by Google and Citadel.
- The median tenure at Hudson River Trading is 3y 1m (middle half 1y to 4y 6m).
- Of those who moved on from Hudson River Trading, 8% went on to a founder title, 14% joined a company with 200 or fewer people, and 16% joined a company with 10,000 or more.
- The median Eng Scorer caliber of people who have worked at Hudson River Trading is 89 on the 0 to 99 scale (77 scored).
- The most common title held at Hudson River Trading is Software Engineer, then Software Engineer Intern.
- Of the 76 people here with a school on file, 15 list MIT (19.7%), then University of Waterloo (9). A person can list more than one school, so these overlap rather than add up.
- 77% of the 77 people here who list a location live in New York today, against 33% of everyone on the map. That is where they live now, not the office they sat in while they worked here.
- 31% of the 77 people here whose profile was checked for public accounts have a public GitHub account on it.
About this data: built from 144,786 jobs across 26,572 engineers in the Zelcast network and Eng Scorer reads, updated August 20, 2026. A move counts when the next role starts within 24 months of leaving; companies with fewer than 20 people on the map are not shown, and destinations with fewer than 3 people are folded 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 26,572 engineers.
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