Zelcastalumni map

People who leave Planet most often go to a long tail of companies. Of them, 44% go somewhere small. The median tenure is 2y 2m

Not Planet's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 71 people on a map of 67,181, No. 332 on it by people. Updated September 30, 2026.

People on the map
710.1% of everyone on the map
There now
3549% of the people here
Moved on
3651% of the people here
Median tenure
2y 2mmiddle half 9m to 4y 10m

Put Planet side by side with another employer.

Came from, went to

Ribbon width is the number of people who made the move. Most arrive from Bedrock Research (Acquired by Planet).

Planet68 in · 34 out

34 recorded departures to 33 companies, none more than 2 to any one of them

4%3Bedrock Research
3 of 68 recorded arrivals shown, 65 more from 62 other companies0 of 34 recorded departures shown, 34 more to 33 other companies

After Planet

  • 44%Joined a startup15
  • 9%Joined a big company3
  • 47%Elsewhere

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

How long people stay

27%<1y
20%1-2y
17%2-4y
20%4-7y
17%7y+
2y 2m median tenuremiddle half 9m to 4y 10m

66 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: 72 joined, 38 left.

Caliber

78mediantop 10%87
0Eng Scorer caliber, 42 scored99

Titles held here

  1. Senior Software Engineer21
  2. Software Engineer16
  3. Flight Software Engineer3
  4. Senior Flight Software Engineer3
  5. Technical Lead3

5 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.

  • 12%Strong5 people
  • 24%Solid10 people
  • 52%Emerging22 people
  • 12%Unproven5 people

42 of the 71 people here carry an Eng Scorer tier.

5 of the 42 people here with a read sit in exceptional or strong, the top two of the five tiers, 12%. 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.

Whether a title rose here

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

40%Titles that rose17 of 43 classified people

  • 40%Rose17 people
  • 51%Stayed level22 people
  • 9%Fell4 people

43 of the 71 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

  1. UC Berkeley9.9%
  2. Stanford7.0%
  3. CU Boulder5.6%
  4. Georgia Tech5.6%
  5. MIT5.6%
  6. University of Maryland4.2%
  7. University of Michigan4.2%

The 7 most listed schools among the 71 people here with a school on file.

7 of the 71 people here with a school on file list UC Berkeley, 5 list Stanford and 4 list CU Boulder. A person can list more than one, so these overlap.

Public work

one square is one in a hundred
44%have a public GitHub account on their profile

31 of the 71 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

62% of the people who have worked at Planet and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.

Planet
Everyone on the map
  • 62%SF Bay Area44 · map 41%
  • 13%Washington DC9 · map 13%
  • 4%Denver3 · map 0.8%
  • 4%New York3 · map 18%
  • 4%Seattle3 · map 5%
  • 13%Somewhere else9

All 71 people who worked at Planet 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 Planet: a metro here isn't an office there. The lower strip is the same metros across the whole map.

Key facts

  • 71 people on the Zelcast alumni map have worked at Planet: 35 are there now, 36 have moved on.
  • Most arrive from Bedrock Research (Acquired by Planet): 3 people.
  • Median tenure at Planet: 2y 2m, middle half 9m to 4y 10m.
  • Of the people with a recorded next move after Planet, fewer than 3 went to a founder title next, 44% joined a company of 200 or fewer, and 9% joined one of 10,000 or more.
  • Median Eng Scorer caliber here: 78 on the 0 to 99 scale, across 42 scored people.
  • Most common title held here: Senior Software Engineer, then Software Engineer.
  • Top school: UC Berkeley, listed by 7 of the 71 people here with one on file (9.9%). Then Stanford (5).
  • 62% of the 71 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.
  • 44% of the 71 people here whose profile was checked for public accounts have a public GitHub.
  • 17 rose, 22 stayed level, 4 fell, out of the 43 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 Planet? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.

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