Zelcastalumni map

People who leave Glean most often go to a long tail of companies. 25% go small. Median stay 2y 10m

These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Glean's headcount: 42 people on a map of 26,572, the No. 234 company on it by people. Updated August 20, 2026.

People on the map
420.2% of everyone on the map
There now
2969% of the people here
Moved on
1331% of the people here
Median tenure
2y 10mmiddle half 1y 10m to 4y 2m

Put Glean 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 Google.

Glean39 in · 12 out

12 recorded departures to 11 companies, none more than 2 to any one of them

6Google4Meta3Amazon
13 of 39 recorded arrivals shown, 26 more from 24 other companies0 of 12 recorded departures shown, 12 more to 11 other companies

After Glean

  • 25%Joined a startup3
  • 75%Elsewhere

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

How long people stay

5%<1y
24%1-2y
39%2-4y
32%4-7y
0%7y+
2y 10m median tenuremiddle half 1y 10m to 4y 2m

38 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: 42 joined, 13 left.

Caliber

85mediantop 10%89
0Eng Scorer caliber, 42 scored99

Titles held here

  1. Software Engineer34
  2. Software Engineer Intern3

2 most common titles, by people who held them.

First job on the record for 5% of people here.

Behind the median

Everyone here with an Eng Scorer read, placed in their caliber tier.

  • 38%Strong16 people
  • 50%Solid21 people
  • 12%Emerging or unproven5 people

42 of the 42 people here carry an Eng Scorer tier.

Exceptional and strong are the top two of the five tiers. 16 of the 42 people here with a read sit in them, 38%. 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.

Where they studied

  1. UC Berkeley28.6%
  2. MIT16.7%
  3. Carnegie Mellon11.9%
  4. Stanford9.5%
  5. Cornell7.1%
  6. Johns Hopkins7.1%
  7. UCLA7.1%
  8. University of Michigan7.1%

The 8 most listed schools among the 42 people here with a school on file.

Of the 42 people here with a school on file, 12 list UC Berkeley, 7 list MIT and 5 list Carnegie Mellon. A person can list more than one school, so these overlap rather than add up.

Public work

one square is one in a hundred
26%have a public GitHub account on their profile

11 of the 42 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

90% of the people who have worked at Glean and list a location live in the San Francisco Bay Area today, against 47% of everyone on the map.

Glean
Everyone on the map
  • 90%SF Bay Area38 · map 47%
  • 10%Somewhere else4

All 42 people who worked at Glean 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 Glean: 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.

Key facts

  • 42 people on the Zelcast alumni map have worked at Glean: 29 are there now and 13 have moved on.
  • The most common previous employer before Glean is Google (6 people), followed by Meta and Amazon.
  • The median tenure at Glean is 2y 10m (middle half 1y 10m to 4y 2m).
  • Of those who moved on from Glean, fewer than 3 went on to a founder title, 25% joined a company with 200 or fewer people, and fewer than 3 joined a company with 10,000 or more.
  • The median Eng Scorer caliber of people who have worked at Glean is 85 on the 0 to 99 scale (42 scored).
  • The most common title held at Glean is Software Engineer, then Software Engineer Intern.
  • Of the 42 people here with a school on file, 12 list UC Berkeley (28.6%), then MIT (7). A person can list more than one school, so these overlap rather than add up.
  • 90% of the 42 people here who list a location live in SF Bay Area today, against 47% of everyone on the map. That is where they live now, not the office they sat in while they worked here.
  • 26% of the 42 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 Glean? See how your profile reads to a startup hiring manager, and where it ranks among 26,572 engineers.

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