Zelcastalumni map

People who leave Sift most often go to Google, Amazon and Lyft. Of them, 23% go somewhere small. The median tenure is 1y 10m

Not Sift's headcount: these are the engineers in the Zelcast network and the profiles run through the Eng Scorer. 57 people on a map of 67,181, No. 416 on it by people. Updated September 30, 2026.

People on the map
570.1% of everyone on the map
There now
1323% of the people here
Moved on
4477% of the people here
Median tenure
1y 10mmiddle half 1y to 3y 8m

Put Sift side by side with another employer.

Came from, went to

Ribbon width is the number of people who made the move. Most arrive from Google. Most leave for Google (13% of recorded departures).

7 of 50 recorded arrivals shown, 43 more from 40 other companies12 of 46 recorded departures shown, 34 more to 32 other companies

After Sift

  • 23%Joined a startup10
  • 36%Joined a big company16
  • 41%Elsewhere

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

How long people stay

16%<1y
36%1-2y
26%2-4y
16%4-7y
6%7y+
1y 10m median tenuremiddle half 1y to 3y 8m

50 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: 59 joined, 47 left.

Caliber

84mediantop 10%96
0Eng Scorer caliber, 32 scored99

Titles held here

  1. Software Engineer19
  2. Machine Learning Engineer7
  3. Staff Software Engineer6
  4. Senior Software Engineer5
  5. Software Engineer Intern5
  6. Software Engineer II3
  7. Tech Lead3

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.

  • 16%Exceptional5 people
  • 16%Strong5 people
  • 31%Solid10 people
  • 38%Emerging12 people

32 of the 57 people here carry an Eng Scorer tier.

10 of the 32 people here with a read sit in exceptional or strong, the top two of the five tiers, 31%. 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.

36%Titles that rose16 of 45 classified people

  • 36%Rose16 people
  • 49%Stayed level22 people
  • 16%Fell7 people

45 of the 57 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. Stanford10.5%
  2. Carnegie Mellon7.0%
  3. UC Berkeley7.0%
  4. University of Washington7.0%
  5. UC San Diego5.3%
  6. UIUC5.3%

The 6 most listed schools among the 57 people here with a school on file.

6 of the 57 people here with a school on file list Stanford, 4 list Carnegie Mellon and 4 list UC Berkeley. A person can list more than one, so these overlap.

Public work

one square is one in a hundred
47%have a public GitHub account on their profile

27 of the 57 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

68% of the people who have worked at Sift and list a location live in the San Francisco Bay Area today, against 41% of everyone on the map.

Sift
Everyone on the map
  • 68%SF Bay Area39 · map 41%
  • 12%Los Angeles7 · map 5%
  • 19%Somewhere else11

All 57 people who worked at Sift 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 Sift: a metro here isn't an office there. The lower strip is the same metros across the whole map.

Key facts

  • 57 people on the Zelcast alumni map have worked at Sift: 13 are there now, 44 have moved on.
  • Most leave for Google: 6 people, 13% of recorded departures. Then Amazon and Lyft.
  • Most arrive from Google: 7 people.
  • Median tenure at Sift: 1y 10m, middle half 1y to 3y 8m.
  • Of the people with a recorded next move after Sift, fewer than 3 went to a founder title next, 23% joined a company of 200 or fewer, and 36% joined one of 10,000 or more.
  • Median Eng Scorer caliber here: 84 on the 0 to 99 scale, across 32 scored people.
  • Most common title held here: Software Engineer, then Machine Learning Engineer.
  • Top school: Stanford, listed by 6 of the 57 people here with one on file (10.5%). Then Carnegie Mellon (4).
  • 68% of the 57 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.
  • 47% of the 57 people here whose profile was checked for public accounts have a public GitHub.
  • 16 rose, 22 stayed level, 7 fell, out of the 45 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 Sift? See how your profile reads to a startup hiring manager, and where it ranks among 67,181 engineers.

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