Illumina reviews

3.3

46% would recommend to a friend

(2,565 total reviews)
avatar

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
4.0
Mar 9, 2026
Recommend
CEO approval
Business Outlook

Pros

For a bit company a real nice group of people to work with, very friendly atmosphere

Cons

A lot of change occuring at the moment, not always well managed

4.0
Mar 9, 2026
Recommend
CEO approval
Business Outlook

Pros

the people are great: caring, supportive, friendly, helpful and knowledgeable. pay and benefits can be good in the right departments and roles.

Cons

job security is poor. there's often hints of promotions which never come to pass. there's a constant focus on cutting costs, this is needed partly because the company's previous boom times meant there wasn't the need, but with the world economy, and a breakaway group of shareholders wanting to milk the cash cow, cost cutting (jobs) has become a way of life. there's a disconnect between the highest tiers of management and their corporate waffle, and the people doing the work; lots of aspirational statements which basically translate to "work harder, faster, cheaper".

4.0
Mar 1, 2026

Team-Dependent

Recommend
CEO approval
Business Outlook

Pros

Worked from home 4 days a week and 1 day in-office.

Cons

Team went through multiple RIFs, struggled to get backfill approval from leadership.

Viewing 46 - 48 of 2,565 Reviews

Glassdoor has 2,976 Illumina reviews submitted anonymously by Illumina employees. Read employee reviews and ratings on Glassdoor to decide if Illumina is right for you.