After Illumina
- 17%Joined a startup4
- 83%Elsewhere
Shares of those who moved on, by their next stop.
People who leave Illumina most often go to a long tail of companies. 17% go small
These are the engineers in the Zelcast network and the profiles run through the Eng Scorer, not Illumina's headcount: 25 people on a map of 26,572, the No. 385 company on it by people. Updated August 20, 2026.
- People on the map
- 250.1% of everyone on the map
- There now
- 00% of the people here
- Moved on
- 25100% of the people here
- Median tenure
- –only 16 stays here have both a start and an end on the record, too few to take a median from
Put Illumina 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.
Not enough recorded moves to draw a river for Illumina yet.
How long people stay
31%<1y
6%1-2y
38%2-4y
19%4-7y
6%7y+
16 stays with both a start and an end on the record.
Who comes and goes, by year
1012
1013
3214
3315
1116
2417
3318
0019
0020
4321
2422
2323
1224
0025
0026
joined left2026 is a partial year
2012 to 2026: 23 joined, 25 left.
Caliber
Not enough scored profiles here yet (25).
Titles held here
- Software Engineer Intern4
- Senior Software Engineer3
2 most common titles, by people who held them.
First job on the record for 28% of people here.
Whether a title rose here
The level of the first title recorded here, against the last.
27%Titles that rose6 of 22 classified people
- 27%Rose6 people
- 73%Stayed level16 people
22 of the 25 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 22 of the 25 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
- UC Berkeley20.0%
- UC San Diego16.0%
- Columbia12.0%
The 3 most listed schools among the 25 people here with a school on file.
Of the 25 people here with a school on file, 5 list UC Berkeley, 4 list UC San Diego and 3 list Columbia. A person can list more than one school, so these overlap rather than add up.
Public work
Not enough of the record here has been checked.This share needs 30 people whose profile was checked for public accounts, and there are fewer than that here.
Where they are now
52% of the people who have worked at Illumina and list a location live in the San Francisco Bay Area today, against 47% of everyone on the map.
Illumina
Everyone on the map
- 52%SF Bay Area13 · map 47%
- 32%Los Angeles8 · map 6%
- 16%Somewhere else4
All 25 people who worked at Illumina 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 Illumina: 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.
On the same resumes
Companies that show up most often alongside Illumina, at any point in a career.
Key facts
- 25 people on the Zelcast alumni map have worked at Illumina: 0 are there now and 25 have moved on.
- Of those who moved on from Illumina, fewer than 3 went on to a founder title, 17% joined a company with 200 or fewer people, and fewer than 3 joined a company with 10,000 or more.
- The most common title held at Illumina is Software Engineer Intern, then Senior Software Engineer.
- Of the 25 people here with a school on file, 5 list UC Berkeley (20.0%), then UC San Diego (4). A person can list more than one school, so these overlap rather than add up.
- 52% of the 25 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.
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 Illumina? See how your profile reads to a startup hiring manager, and where it ranks among 26,572 engineers.
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