Illumina reviews

3.3

46% would recommend to a friend

(2,565 total reviews)
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Jacob Thaysen

53% approve of CEO

33% positive business outlook

Illumina has an employee rating of 3.3 out of 5 stars, based on 2,565 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Illumina employee rating is in line with the average (within 1 standard deviation) for employers within the Pharmaceutical & Biotechnology industry (3.5 stars).

Reviews by job title

3K reviews
5.0
Dec 7, 2025

Really good work life balance

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Good work life balance, adequate engagement with employees

Cons

Lower salary package, limited career mobility

3.0
Dec 7, 2025

Average

Recommend
CEO approval
Business Outlook

Pros

salary is decent for the work you do

Cons

promotion cycles reduced from 4x a year to 2x a year

4.0
Dec 6, 2025
Recommend
CEO approval
Business Outlook

Pros

Lot's of good middle management. Gym and outdoor facilities are nice. Smart, hardworking and kind workforce (for the most part).

Cons

Too many individuals in senior leadership are tone deaf when it comes to layoffs, pay compensation and RTO demands. With high pay comes high expectations. For example, pizza party after announcing pay cuts isn't appreciated. Recent removal of RSU's for most employees amounting to a significant pay cut and lack of personal investment in the company. RTO mandate for some groups and individuals but not others. Still dealing with repercussions from poor business decisions such as failed Grail, Pacbio acquisitions.

Viewing 85 - 87 of 2,565 Reviews

Glassdoor has 2,977 Illumina reviews submitted anonymously by Illumina employees. Read employee reviews and ratings on Glassdoor to decide if Illumina is right for you.