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
2.0
Dec 4, 2025

Bad leadership

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

- Flexibility with remote work (team dependent) - Time off (team dependent, we were encouraged to take lots of time off)

Cons

- Leadership is out of touch and unstable; constantly changing course and laying off people with lots of institutional knowledge to appease shareholders

3.0
Dec 3, 2025
Recommend
CEO approval
Business Outlook

Pros

Fast moving technology, interesting projects

Cons

Large workload, high expectations, poor decision making by upper management, too many meetings but not enough time to work

Viewing 88 - 90 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.