Working at Illumina | Glassdoor

Illumina Overview

San Diego, CA
5001 to 10000 employees
Company - Public (ILMN)
Biotech & Pharmaceuticals
$2 to $5 billion (USD) per year
Illumina is improving the future of human health by unlocking the power of the genome. Our mission is everything to us. We are deeply passionate about what we do because we know we are solving problems that really matter. Our people and technology change lives by pioneering ... Read more

Mission: To improve human health by unlocking the power of the genome.

Company Updates

  • Want to learn a bit more about our CEO, the work that we do, and the future of Illumina? Check out this article!

    The Man Behind San Diego's Billion Dollar Company

    Francis deSouza | Photo: Flavio Scorsato Expert sequencing, innovative technology, and fast diagnoses of fatal diseases-San Diego genomics giant Illumina has made a name for itself not just in the US, but around the globe.The company even holds a Guinness World Record. Now Illumina is introducing faster, cheaper sequencing that could revolutionize how we're diagnosed and treated.

  • We are excited to receive recognition from Forbes as one of America's Best Employers! Illumina came in at #34 in the rankings for top midsize employers. Check out the full list here:

    America's Best Midsize Employers

    Where are the best places to work? We polled 30,000 U.S. employees and came up with a ranking of the top 500 large employers and the top 250 midsize ones. Is your company on the list?

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Illumina Video

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Illumina – Why Work For Us?


What we do at Illumina may seem complicated, but our mission is simple. 
To improve human health by unlocking the power of the genome."

At Illumina, we have developed leading edge products and services through the use of innovative technologies. Every employee has a relentless drive to continue to grow Illumina and to live out our vision “to advance human health by unlocking the power of the genome”. Talk to any employee, and you will learn about their passion and drive to make a difference and do their best work.

Our work is far from complete; in order to keep driving forward, a very collaborative approach is needed. At Illumina, everyone’s work and ideas are valued as an integral part of the community.

We need talented and passionate people like you to help make our mission a reality. 
Join the Illumina community and be a part of the team that is setting the pace and making an impact in human health.

We are mission driven

Our mission and values mean everything to us. They drive everything we do. They guide and inspire us to innovate, collaborate, and push boundaries.

Our values

  • Innovation is in our DNA
  • We are relentless in the creation of great products
  • We move fast and embrace change
  • We collaborate deeply
  • We are open

Our mission - To improve human health by unlocking the power of the genome. 

Join the journey. 

Join the Journey

Illumina is a vibrant center of innovation, collaboration, and openness. Pair that with the opportunity to do once-in-a-lifetime work, and you have a new standard for your career.  See for yourself what it means to work at Illumina—explore Glassdoor reviews from our employees.

Illumina is a special place brimming with energy and excitement. Here you will find the world’s top scientists, researchers, and engineers. You’ll meet creative minds with an “anything is possible” mentality. We strive to create an exceptionally open and collaborative environment that fosters teamwork and values team success. It’s your turn to pioneer the future alongside great teams doing truly inspiring work to determine where our industry goes next.

We are stronger together

Diversity is an integral part of the experience here. We are a team composed of different races, religions, cultures, sexual orientations, nationalities, political views, and professional backgrounds.  We value diverse ideas, creative thinking, and collaboration.  We are actively looking for new team members who bring new perspectives and fresh ideas. 

Innovation and impact 

How will you change the future of human health? At Illumina, we are part of something bigger. As a global leader in genomics, we are fueling groundbreaking advancements in technology, science, and ultimately, real lives.

We have a relentless drive to grow professionally and personally, while living out the Illumina mission. We are passionate about being part of something bigger and that passion is critical to our success.

Grow your career

You’re a champion of change. Your end goal is to make a difference. You dream big.

These are just a few of the reasons why our employees choose Illumina. If you have a passion to do the extraordinary, to find success both in what you do and in the impact you make, we encourage you to explore a career with us. 

When you join the Illumina journey, you’ll learn from world-renowned strategic thinkers, technical experts, and accomplished peers. You will work with humble people who take their work seriously but don’t take themselves too seriously.  You will develop a balanced and dynamic skill set. And, most importantly, you will contribute to groundbreaking changes and advancements.

Check us out on Great Places to Work


Ideas are Big, Outcomes are even Bigger.


Your journey starts here

Innovators. Optimists. Collaborators. We understand the spark that drives you, and that passion is what drives success in any position at Illumina. With a global network of more than 5000 employees who are always ready to champion Illumina—and one another—you will shape not just your own future, but the future of your colleagues and the direction of Illumina. Whether you’re solving critical business problems, writing new product proposals, developing cutting-edge genomics research, or showcasing your abilities as a software engineer, we ask you to join our journey to change the world for the better.

Come join the journey!

Apply online at

Illumina Reviews

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Illumina President & CEO Francis deSouza
Francis deSouza
79 Ratings
  • Featured Review

    "Reseach Associate 2"

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    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Research Associate II in San Diego, CA
    Current Employee - Research Associate II in San Diego, CA
    Positive Outlook
    Approves of CEO

    I have been working at Illumina full-time


    Everyone is incredibly friendly, smart, and approachable
    Co-workers and managers really care about your well-being
    Managers care about your career aspirations and recognize company goals is to create new innovative technology so they encourage new ideas and increased responsibility
    Hard work is recognized (within teams and company wide)
    It's clear CEO and Board members value their employees between programs offered, policies implemented, as well as interviews they give
    Company values are not just posted on the walls they are talked about on a daily basis and kept in mind with every project
    Lots of opportunities to branch out and meet other people in the company with other departments
    Lots of amenities
    Fast paced and meaningful work


    Deadlines come quickly and priorities are constantly changing- not for someone who does not like change

See All 464 Reviews

Illumina Interviews



Getting an Interview

Getting an Interview





    Accepted Offer
    Positive Experience
    Average Interview


    I applied through a staffing agency. I interviewed at Illumina.


    After a lengthy phone screen, I was invited to the in-person interview, which included four separate meetings with different functional groups as well as a tour of the campus. Each interview was a combination of technical questions and personal, getting-to-know you questions.

    Interview Questions

    • How would you test the accuracy of your results without a baseline?   1 Answer
See All 327 Interviews

Illumina Awards & Accolades

  • America's Best Midsize Employers, Forbes, 2017
  • Most Innovative Companies, Fast Company, 2017
  • The World's 50 Smartest Companies (#3), MIT Technology Review, 2016
  • Great Place to Work Certified, Great Place to Work Institute, 2016
  • San Diego's Coolest Companies, San Diego Magazine, 2016
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