After Sigma
- 9%Founded something3
- 27%Joined a startup9
- 12%Joined a big company4
- 52%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Sigma most often go to OpenAI. Of them, 9% found something next and 27% go somewhere small. The median tenure is 2y
Not Sigma's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 66 people on a map of 67,181, No. 363 on it by people. Updated September 30, 2026.
- People on the map
- 660.1% of everyone on the map
- There now
- 3452% of the people here
- Moved on
- 3248% of the people here
- Median tenure
- 2ymiddle half 10m to 3y 4m
Came from, went to
Ribbon width is the number of people who made the move. Most arrive from Meta. Most leave for OpenAI (9% of recorded departures).
How long people stay
28%<1y
22%1-2y
34%2-4y
16%4-7y
0%7y+
64 stays with both a start and an end on the record.
Who comes and goes, by year
<3016
0<317
0018
3<319
6<320
12521
11522
9523
14524
10925
5426
joined left2026 is a partial year
2016 to 2026: 71 joined, 37 left.
Caliber
83mediantop 10%87
0Eng Scorer caliber, 44 scored99
Titles held here
- Software Engineer42
- Senior Software Engineer9
- Software Engineer Intern9
- Staff Software Engineer3
4 most common titles, by people who held them.
First job on the record for 8% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 16%Strong7 people
- 43%Solid19 people
- 41%Emerging18 people
44 of the 66 people here carry an Eng Scorer tier.
7 of the 44 people here with a read sit in exceptional or strong, the top two of the five tiers, 16%. 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.
38%Titles that rose14 of 37 classified people
- 38%Rose14 people
- 54%Stayed level20 people
- 8%Fell3 people
37 of the 66 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
- UC Berkeley18.5%
- Carnegie Mellon12.3%
- Georgia Tech10.8%
- MIT6.2%
- Stanford4.6%
- UIUC4.6%
The 6 most listed schools among the 65 people here with a school on file.
12 of the 65 people here with a school on file list UC Berkeley, 8 list Carnegie Mellon and 7 list Georgia Tech. 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
29 of the 66 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
79% of the people who have worked at Sigma and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.
Sigma
Everyone on the map
- 79%SF Bay Area52 · map 41%
- 21%New York14 · map 18%
All 66 people who worked at Sigma 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 Sigma: a metro here isn't an office there. The lower strip is the same metros across the whole map.
On the same resumes
Companies that show up most often alongside Sigma, at any point in a career.
Key facts
- 66 people on the Zelcast alumni map have worked at Sigma: 34 are there now, 32 have moved on.
- Most leave for OpenAI: 3 people, 9% of recorded departures.
- Most arrive from Meta: 4 people.
- Median tenure at Sigma: 2y, middle half 10m to 3y 4m.
- Of the people with a recorded next move after Sigma, 9% went to a founder title next, 27% joined a company of 200 or fewer, and 12% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 83 on the 0 to 99 scale, across 44 scored people.
- Most common title held here: Software Engineer, then Senior Software Engineer.
- Top school: UC Berkeley, listed by 12 of the 65 people here with one on file (18.5%). Then Carnegie Mellon (8).
- 79% of the 66 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 66 people here whose profile was checked for public accounts have a public GitHub.
- 14 rose, 20 stayed level, 3 fell, out of the 37 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 Sigma? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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