After Gem
- 21%Joined a startup5
- 17%Joined a big company4
- 63%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Gem most often go to a long tail of companies. Of them, 21% go somewhere small. The median tenure is 1y 5m
Not Gem's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 34 people on a map of 67,181, No. 726 on it by people. Updated September 30, 2026.
- People on the map
- 340.1% of everyone on the map
- There now
- 926% of the people here
- Moved on
- 2574% of the people here
- Median tenure
- 1y 5mmiddle half 7m to 2y 5m
Came from, went to
Ribbon width is the number of people who made the move.
Not enough recorded moves to draw a river for Gem yet.
How long people stay
37%<1y
27%1-2y
13%2-4y
20%4-7y
3%7y+
30 stays with both a start and an end on the record.
Who comes and goes, by year
<3016
<3017
<3318
<3<319
4320
6321
14822
0423
<3<324
<3<325
<3<326
joined left2026 is a partial year
2016 to 2026: 34 joined, 25 left.
Caliber
83mediantop 10%89
0Eng Scorer caliber, 31 scored99
Titles held here
- Software Engineer20
- Software Engineer Intern5
2 most common titles, by people who held them.
First job on the record for 9% of people here.
Behind the median
Everyone here with an Eng Scorer read, placed in their caliber tier.
- 26%Exceptional or strong8 people
- 48%Solid15 people
- 26%Emerging8 people
31 of the 34 people here carry an Eng Scorer tier.
8 of the 31 people here with a read sit in exceptional or strong, the top two of the five tiers, 26%. 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. A tier holding fewer than 3 people is printed with the one next to it, because that few is a person rather than a pattern.
Whether a title rose here
The level of the first title recorded here, against the last.
50%Titles that rose12 of 24 classified people
- 50%Rose12 people
- 50%Stayed level or fell12 people
24 of the 34 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. A direction holding fewer than 3 people is printed with the one next to it, because that few is a person rather than a pattern.
Where they studied
- University of Waterloo21.2%
- UC Berkeley12.1%
- MIT9.1%
- Stanford9.1%
The 4 most listed schools among the 33 people here with a school on file.
7 of the 33 people here with a school on file list University of Waterloo, 4 list UC Berkeley and 3 list MIT. A person can list more than one, so these overlap.
Public work
one square is one in a hundred
38%have a public GitHub account on their profile
13 of the 34 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
76% of the people who have worked at Gem and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.
Gem
Everyone on the map
- 76%SF Bay Area26 · map 41%
- 18%New York6 · map 18%
All 34 people who worked at Gem 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 Gem: 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 Gem, at any point in a career.
Key facts
- 34 people on the Zelcast alumni map have worked at Gem: 9 are there now, 25 have moved on.
- Median tenure at Gem: 1y 5m, middle half 7m to 2y 5m.
- Of the people with a recorded next move after Gem, fewer than 3 went to a founder title next, 21% joined a company of 200 or fewer, and 17% joined one of 10,000 or more.
- Median Eng Scorer caliber here: 83 on the 0 to 99 scale, across 31 scored people.
- Most common title held here: Software Engineer, then Software Engineer Intern.
- Top school: University of Waterloo, listed by 7 of the 33 people here with one on file (21.2%). Then UC Berkeley (4).
- 76% of the 34 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.
- 38% of the 34 people here whose profile was checked for public accounts have a public GitHub.
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 Gem? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.
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