Zelcastalumni map

People who leave MZ most often go to a long tail of companies. Of them, 20% go somewhere small. The median tenure is 1y 6m

Not MZ's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 22 people on a map of 67,181, No. 1,180 on it by people. Updated September 30, 2026.

People on the map
22Under 0.1% of everyone on the map
There now
15% of the people here
Moved on
2195% of the people here
Median tenure
1y 6mmiddle half 10m to 2y 9m

Put MZ side by side with another employer.

Came from, went to

Ribbon width is the number of people who made the move.

Not enough recorded moves to draw a river for MZ yet.

After MZ

  • 20%Joined a startup4
  • 15%Joined a big company3
  • 65%Elsewhere

Shares of those who moved on, by their next stop.

How long people stay

30%<1y
35%1-2y
26%2-4y
4%4-7y
4%7y+
1y 6m median tenuremiddle half 10m to 2y 9m

23 stays with both a start and an end on the record.

Who comes and goes, by year

12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
joined left2026 is a partial year

2012 to 2026: 23 joined, 22 left.

Caliber

Not enough scored profiles here yet (16).

Titles held here

  1. Software Engineer7
  2. Senior Software Engineer4
  3. Staff Software Engineer3

3 most common titles, by people who held them.

Whether a title rose here

The level of the first title recorded here, against the last.

45%Titles that rose9 of 20 classified people

  • 45%Rose9 people
  • 55%Stayed level or fell11 people

20 of the 22 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

  1. UC Berkeley13.6%

The one school among the 22 people here with a school on file.

3 of the 22 people here with a school on file list UC Berkeley.

Public work

Not enough of the record here has been checked.This share needs 30 people whose profile was checked for public accounts, and there are fewer here.

Where they are now

82% of the people who have worked at MZ and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.

MZ
Everyone on the map
  • 82%SF Bay Area18 · map 41%
  • 18%Somewhere else4

All 22 people who worked at MZ 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 MZ: a metro here isn't an office there. The lower strip is the same metros across the whole map.

Key facts

  • 22 people on the Zelcast alumni map have worked at MZ: 1 are there now, 21 have moved on.
  • Median tenure at MZ: 1y 6m, middle half 10m to 2y 9m.
  • Of the people with a recorded next move after MZ, fewer than 3 went to a founder title next, 20% joined a company of 200 or fewer, and 15% joined one of 10,000 or more.
  • Most common title held here: Software Engineer, then Senior Software Engineer.
  • Top school: UC Berkeley, listed by 3 of the 22 people here with one on file (13.6%).
  • 82% of the 22 people here who list a location live in SF Bay Area today, against 41% across the map. Where they live now, not the office they sat in while they worked here.

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 MZ? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.

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