Zelcastalumni map

People who leave Square most often go to Cash App, Persona and Amazon. 4% found something next. 20% go small. Median stay 4y

These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Square's headcount: 164 people on a map of 26,572, the No. 56 company on it by people. Updated August 20, 2026.

People on the map
1640.6% of everyone on the map
There now
4930% of the people here
Moved on
11570% of the people here
Median tenure
4ymiddle half 2y to 5y

Put Square 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. Most leave for Cash App (8% of recorded departures).

Square148 in · 116 out
11Google7Microsoft6Amazon5Meta3AppleCash App98%Persona65%Amazon54%Microsoft54%Google43%Meta43%Apple33%Stripe33%
32 of 148 recorded arrivals shown, 116 more from 109 other companies39 of 116 recorded departures shown, 77 more to 69 other companies

After Square

  • 4%Founded something5
  • 20%Joined a startup22
  • 19%Joined a big company21
  • 57%Elsewhere

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

How long people stay

12%<1y
13%1-2y
26%2-4y
41%4-7y
9%7y+
4y median tenuremiddle half 2y to 5y

128 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: 180 joined, 133 left.

Caliber

84mediantop 10%92
0Eng Scorer caliber, 164 scored99

there now 83 moved on 84. Current staff and alumni score about the same.

Titles held here

  1. Software Engineer63
  2. Software Engineer Intern42
  3. Senior Software Engineer31
  4. Engineering Manager20
  5. Staff Software Engineer8
  6. Product Manager4
  7. Machine Learning Engineer3

7 most common titles, by people who held them.

First job on the record for 7% of people here.

Behind the median

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

  • 5%Exceptional8 people
  • 26%Strong43 people
  • 52%Solid86 people
  • 13%Emerging22 people
  • 3%Unproven5 people

164 of the 164 people here carry an Eng Scorer tier.

Exceptional and strong are the top two of the five tiers. 51 of the 164 people here with a read sit in them, 31%. 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.

Whether a title rose here

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

35%Titles that rose45 of 127 classified people

  • 35%Rose45 people
  • 61%Stayed level78 people
  • 3%Fell4 people

127 of the 164 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 who recorded one title here and then left, it is 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. A title that matches no rung is left out rather than guessed, and product, program and project managers are left out entirely, being a different ladder. That leaves 127 of the 164 people here classified, and it leans towards people who have left: someone still here on a single recorded title has nothing to be measured against.

Where they studied

  1. UC Berkeley9.9%
  2. Stanford6.8%
  3. MIT6.2%
  4. Penn6.2%
  5. Georgia Tech4.9%
  6. Carnegie Mellon4.3%
  7. Columbia4.3%
  8. UCLA4.3%

The 8 most listed schools among the 162 people here with a school on file.

Of the 162 people here with a school on file, 16 list UC Berkeley, 11 list Stanford and 10 list MIT. A person can list more than one school, so these overlap rather than add up.

Public work

one square is one in a hundred
55%have a public GitHub account on their profile

91 of the 164 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

53% of the people who have worked at Square and list a location live in the San Francisco Bay Area today, against 47% of everyone on the map.

Square
Everyone on the map
  • 53%SF Bay Area87 · map 47%
  • 39%New York64 · map 33%
  • 5%Los Angeles9 · map 6%
  • 2%Somewhere else4

All 164 people who worked at Square 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 Square: 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

  • 164 people on the Zelcast alumni map have worked at Square: 49 are there now and 115 have moved on.
  • The most common next employer after Square is Cash App (9 people, 8% of recorded departures), followed by Persona and Amazon.
  • The most common previous employer before Square is Google (11 people), followed by Microsoft and Amazon.
  • The median tenure at Square is 4y (middle half 2y to 5y).
  • Of those who moved on from Square, 4% went on to a founder title, 20% joined a company with 200 or fewer people, and 19% joined a company with 10,000 or more.
  • The median Eng Scorer caliber of people who have worked at Square is 84 on the 0 to 99 scale (164 scored).
  • The most common title held at Square is Software Engineer, then Software Engineer Intern.
  • Of the 162 people here with a school on file, 16 list UC Berkeley (9.9%), then Stanford (11). A person can list more than one school, so these overlap rather than add up.
  • 53% of the 164 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.
  • 55% of the 164 people here whose profile was checked for public accounts have a public GitHub account on it.
  • Of the 127 people here whose title could be placed on a ladder both before and after, 45 rose, 78 stayed level and 4 fell.

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 Square? See how your profile reads to a startup hiring manager, and where it ranks among 26,572 engineers.

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