After Bloomberg
- 3%Founded something19
- 13%Joined a startup87
- 40%Joined a big company261
- 44%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Bloomberg most often go to Google, Meta and Amazon. Of them, 13% go somewhere small. The median tenure is 3y 2m
Not Bloomberg's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 1,274 people on a map of 67,181, No. 14 on it by people. Updated September 30, 2026.
- People on the map
- 1,2741.9% of everyone on the map
- There now
- 60047% of the people here
- Moved on
- 67453% of the people here
- Median tenure
- 3y 2mmiddle half 1y 9m to 4y 5m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Meta. Most leave for Google (13% of recorded departures).
263 of 1,174 recorded arrivals shown, 911 more from 709 other companies272 of 690 recorded departures shown, 418 more to 285 other companies
The Bloomberg mafia
19 of the people who left went straight to a founding role, 3% of those who moved on, half of them within a month of leaving. The bars cover the ’15 to ’26 classes; earlier founders still count in the total.
How long people stay
11%<1y
17%1-2y
38%2-4y
26%4-7y
7%7y+
1,068 stays with both a start and an end on the record.
Who comes and goes, by year
241412
191413
392414
513515
523916
845917
935518
816819
1095620
15411721
19610322
2616423
765524
905225
122126
joined left2026 is a partial year
2012 to 2026: 1,341 joined, 776 left.
Caliber
81mediantop 10%88
0Eng Scorer caliber, 796 scored99
there now 78 moved on 83. The people who left score higher than the people still there.
Titles held here
- Software Engineer639
- Senior Software Engineer330
- Software Engineer Intern220
- Engineering Manager22
- Financial Software Developer19
- Software Developer14
- Software Development Intern14
- Financial Software Developer Intern12
8 most common titles, by people who held them.
First job on the record for 13% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 2%Exceptional16 people
- 15%Strong119 people
- 35%Solid281 people
- 42%Emerging334 people
- 6%Unproven46 people
796 of the 1,274 people here carry an Eng Scorer tier.
135 of the 796 people here with a read sit in exceptional or strong, the top two of the five tiers, 17%. 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.
Whether a title rose here
The level of the first title recorded here, against the last.
39%Titles that rose308 of 787 classified people
- 39%Rose308 people
- 56%Stayed level439 people
- 5%Fell40 people
787 of the 1,274 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.
Where they studied
- Georgia Tech6.5%
- NYU5.7%
- UC Berkeley5.4%
- Columbia5.3%
- Carnegie Mellon5.0%
- University of Waterloo4.2%
- Cornell3.5%
- MIT3.4%
The 8 most listed schools among the 1,266 people here with a school on file.
82 of the 1,266 people here with a school on file list Georgia Tech, 72 list NYU and 68 list UC Berkeley. 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
364 of the 1,274 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
71% of the people who have worked at Bloomberg and list a location live in New York today, against 18% of everyone on the map.
Bloomberg
Everyone on the map
- 71%New York901 · map 18%
- 20%SF Bay Area257 · map 41%
- 2%Washington DC27 · map 13%
- 1%Seattle13 · map 5%
- 0.9%Boston11 · map 2%
- 0.8%Los Angeles10 · map 5%
- 0.5%Chicago6 · map 0.6%
- 0.4%Atlanta5 · map 1%
- 3%Somewhere else40
1,270 of the 1,274 people who worked at Bloomberg list a location, and every share here is over those 1,270.
Where they live now, from the profile as it reads today, not where they sat while working at Bloomberg: 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 Bloomberg, at any point in a career.
Key facts
- 1,274 people on the Zelcast alumni map have worked at Bloomberg: 600 are there now, 674 have moved on.
- Most leave for Google: 92 people, 13% of recorded departures. Then Meta and Amazon.
- Most arrive from Meta: 61 people. Then Amazon and Google.
- Median tenure at Bloomberg: 3y 2m, middle half 1y 9m to 4y 5m.
- Of the people with a recorded next move after Bloomberg, 3% went to a founder title next, 13% joined a company of 200 or fewer, and 40% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 81 on the 0 to 99 scale, across 796 scored people.
- Most common title held here: Software Engineer, then Senior Software Engineer.
- Top school: Georgia Tech, listed by 82 of the 1,266 people here with one on file (6.5%). Then NYU (72).
- 71% of the 1,270 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 1,274 people here whose profile was checked for public accounts have a public GitHub.
- 308 rose, 439 stayed level, 40 fell, out of the 787 people here whose title could be placed on a ladder before and after.
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 Bloomberg? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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