Working at OSI Pharmaceuticals | Glassdoor

OSI Pharmaceuticals Overview

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Melville, NY
501 to 1000 employees
Subsidiary or Business Segment
Biotech & Pharmaceuticals
$100 to $500 million (USD) per year
Fighting disease in small ways is what OSI Pharmaceuticals is all about. The company focuses on small molecule cures for diseases like cancer, allowing for treatment by pill rather than IV infusion. Its top seller Tarceva treats non-small cell lung cancer and pancreatic cancer ... Read more

OSI Pharmaceuticals Reviews

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Sef Kurstjens
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  • "Great company to work for - but now it's gone"

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    Former Employee - Executive Administrative Assistant in Boulder, CO
    Former Employee - Executive Administrative Assistant in Boulder, CO

    I worked at OSI Pharmaceuticals full-time (More than 3 years)


    What an amazing place to work! Great people, compelling corporate vision and wonderful benefits! Diverse and brilliant coworkers that made going to work a joy.


    OSI Pharmaceuticals was bought out by Astellas Pharmaceuticals and the company was never the same after that. The company eventually closed it's doors. Very unfortunate!

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OSI Pharmaceuticals Interviews

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Interview Experience

Getting an Interview

Getting an Interview

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Interview Difficulty




    Associate Scientist Interview

    Anonymous Employee
    Accepted Offer
    Neutral Experience
    Average Interview


    I applied online. The process took 2 days. I interviewed at OSI Pharmaceuticals in June 2009.


    HR contacted me to set up an interview with hiring scientist.
    Scientist called me, we had a 20 minute conversation, a follow up interview was scheduled same day.
    Came in, interviewed with 5 scientists from same dept.
    Questions consisted of experience, familiarity with subject matter and questions testing my scientific approach to problems.

    Interview Questions

    • You have X cell lines that are sensitive to a drug Y. How and what can you do with this information?   2 Answers


    I was given an offer and I accepted it. HR rep had already told me the range that the salary would be during the interview so I did not negotiate.

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