After MongoDB
- 4%Founded something4
- 15%Joined a startup17
- 29%Joined a big company32
- 52%Elsewhere
Shares of those who moved on, by their next stop.
People who leave MongoDB most often go to Meta, Amazon and Google. Of them, 4% found something next and 15% go somewhere small. The median tenure is 2y 4m
Not MongoDB's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 171 people on a map of 67,181, No. 142 on it by people. Updated September 30, 2026.
- People on the map
- 1710.3% of everyone on the map
- There now
- 5935% of the people here
- Moved on
- 11265% of the people here
- Median tenure
- 2y 4mmiddle half 1y 4m to 4y 3m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Amazon. Most leave for Meta (12% of recorded departures).
33 of 174 recorded arrivals shown, 141 more from 129 other companies38 of 118 recorded departures shown, 80 more to 72 other companies
How long people stay
17%<1y
23%1-2y
32%2-4y
25%4-7y
4%7y+
114 stays with both a start and an end on the record.
Who comes and goes, by year
5<312
4<313
8614
6515
7716
9817
121218
151119
251720
211521
322322
221423
181124
16725
<3326
joined left2026 is a partial year
2012 to 2026: 201 joined, 143 left.
Caliber
83mediantop 10%91
0Eng Scorer caliber, 121 scored99
there now 83 moved on 84. Current staff and alumni score about the same.
Titles held here
- Software Engineer Intern75
- Software Engineer49
- Senior Software Engineer28
- Software Engineer III10
- Software Engineer II8
- Staff Software Engineer6
- Lead Engineer3
7 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.
- 28%Exceptional or strong34 people
- 45%Solid55 people
- 24%Emerging29 people
- 2%Unproven3 people
121 of the 171 people here carry an Eng Scorer tier.
34 of the 121 people here with a read sit in exceptional or strong, the top two of the five tiers, 28%. 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.
38%Titles that rose47 of 123 classified people
- 38%Rose47 people
- 59%Stayed level72 people
- 3%Fell4 people
123 of the 171 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
- Carnegie Mellon10.6%
- UC Berkeley7.7%
- Cornell7.1%
- Columbia6.5%
- Stanford6.5%
- Princeton5.9%
- Penn4.7%
- Brown4.1%
The 8 most listed schools among the 170 people here with a school on file.
18 of the 170 people here with a school on file list Carnegie Mellon, 13 list UC Berkeley and 12 list Cornell. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
45%have a public GitHub account on their profile
77 of the 171 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
53% of the people who have worked at MongoDB and list a location live in New York today, against 18% of everyone on the map.
MongoDB
Everyone on the map
- 53%New York90 · map 18%
- 38%SF Bay Area65 · map 41%
- 2%Los Angeles3 · map 5%
- 2%Seattle3 · map 5%
- 2%Washington DC3 · map 13%
- 4%Somewhere else7
All 171 people who worked at MongoDB 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 MongoDB: 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 MongoDB, at any point in a career.
Key facts
- 171 people on the Zelcast alumni map have worked at MongoDB: 59 are there now, 112 have moved on.
- Most leave for Meta: 14 people, 12% of recorded departures. Then Amazon and Google.
- Most arrive from Amazon: 9 people. Then Google and Microsoft.
- Median tenure at MongoDB: 2y 4m, middle half 1y 4m to 4y 3m.
- Of the people with a recorded next move after MongoDB, 4% went to a founder title next, 15% joined a company of 200 or fewer, and 29% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 83 on the 0 to 99 scale, across 121 scored people.
- Most common title held here: Software Engineer Intern, then Software Engineer.
- Top school: Carnegie Mellon, listed by 18 of the 170 people here with one on file (10.6%). Then UC Berkeley (13).
- 53% of the 171 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.
- 45% of the 171 people here whose profile was checked for public accounts have a public GitHub.
- 47 rose, 72 stayed level, 4 fell, out of the 123 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 MongoDB? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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