Zelcastalumni map

People who leave Mercor most often go to a long tail of companies. Median stay 7m

These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Mercor's headcount: 32 people on a map of 26,572, the No. 304 company on it by people. Updated August 20, 2026.

People on the map
320.1% of everyone on the map
There now
2269% of the people here
Moved on
1031% of the people here
Median tenure
7mmiddle half 3m to 10m

Put Mercor 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.

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

After Mercor

  • 100%Elsewhere

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

How long people stay

76%<1y
21%1-2y
3%2-4y
0%4-7y
0%7y+
7m median tenuremiddle half 3m to 10m

33 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: 33 joined, 11 left.

Caliber

79mediantop 10%87
0Eng Scorer caliber, 32 scored99

Titles held here

  1. Software Engineer9
  2. Member of Technical Staff4

2 most common titles, by people who held them.

Behind the median

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

  • 13%Strong4 people
  • 34%Solid11 people
  • 44%Emerging14 people
  • 9%Unproven3 people

32 of the 32 people here carry an Eng Scorer tier.

Exceptional and strong are the top two of the five tiers. 4 of the 32 people here with a read sit in them, 13%. 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.

Where they studied

  1. UC Berkeley15.6%
  2. MIT9.4%
  3. Stanford9.4%

The 3 most listed schools among the 32 people here with a school on file.

Of the 32 people here with a school on file, 5 list UC Berkeley, 3 list MIT and 3 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
9%have a public GitHub account on their profile

3 of the 32 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

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

Mercor
Everyone on the map
  • 47%SF Bay Area15 · map 47%
  • 22%New York7 · map 33%
  • 19%Los Angeles6 · map 6%
  • 13%Somewhere else4

All 32 people who worked at Mercor 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 Mercor: 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

  • 32 people on the Zelcast alumni map have worked at Mercor: 22 are there now and 10 have moved on.
  • The median tenure at Mercor is 7m (middle half 3m to 10m).
  • Of those who moved on from Mercor, fewer than 3 went on to a founder title, fewer than 3 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 Mercor is 79 on the 0 to 99 scale (32 scored).
  • The most common title held at Mercor is Software Engineer, then Member of Technical Staff.
  • Of the 32 people here with a school on file, 5 list UC Berkeley (15.6%), then MIT (3). A person can list more than one school, so these overlap rather than add up.
  • 47% of the 32 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.
  • 9% of the 32 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 Mercor? See how your profile reads to a startup hiring manager, and where it ranks among 26,572 engineers.

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