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Masimo Overview

Website www.masimo.com
Headquarters Irvine, CA
Size 1001 to 5000 Employees
Founded 1989
Type Company - Public (MASI)
Industry Manufacturing
Revenue $500 million to $1 billion (USD) per year
Masimo (NASDAQ: MASI) is a global medical technology company that develops and manufactures innovative noninvasive patient monitoring technologies, including medical devices and a wide array of sensors. Masimo currently employs over 3000 people ... More

Mission: Masimo is committed to improving patient outcomes and reducing cost of care by working with dedicated hospital staff to convert healthcare institutions around the world to Masimo SET® pulse oximetry technology. We are accomplishing this goal through partnering with our patient ... More

Masimo Video

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Masimo – Why Work For Us?

A key medical technology innovator, Masimo is responsible for the invention of award-winning noninvasive technologies that are revolutionizing patient monitoring, including Masimo SET® pulse oximetry, Masimo Rainbow Pulse CO-Oximetry and new Masimo noninvasive and continuous total hemoglobin (SpHb™) monitoring technology. The recent introduction of the first-and-only FDA-cleared technology that noninvasively and continuously measures total hemoglobin without a painful needle stick and invasive blood draw is expected to open new markets and significantly expand the company’s growth opportunities.

Joe Kiani founded Masimo in 1989 as a private "garage start-up" company because he was convinced that the use of adaptive signal processing in the measurement of physiological parameters could solve the problems of low perfusion and motion, which had long plagued in-vivo monitoring and especially pulse oximetry. Today, Masimo has grown into a successful publicly-traded medical technology company employing over 2,500 people worldwide with product revenues that have increased 4-fold in the last five years. In addition, with technology license and OEM agreements with leading patient monitoring manufacturers spanning the globe — such as Atom, Datascope, GE Medical, Medtronic, Philips, Spacelabs and Zoll, among others. Masimo is not only the inventor of measure-through motion and low perfusion pulse oximetry and Pulse CO-Oximetry technologies, but is also the market-leading pulse oximetry technology solution.

In 1995, Masimo debuted measure-through motion and low perfusion pulse oximetry, known as Masimo SET — a breakthrough in pulse oximetry technology that virtually eliminated false alarms and increased pulse oximetry’s ability to detect life-threatening events. More than 100 independent and objective studies demonstrate that Masimo SET® provides the most reliable SpO2 and pulse rate measurements even under the most challenging clinical conditions, including patient motion and low peripheral perfusion.

In 2005, Masimo introduced Masimo Rainbow Pulse CO-Oximetry, a breakthrough noninvasive blood constituent monitoring platform that measures many blood constituents that previously required invasive procedures. Masimo Rainbow SET® continuously and noninvasively measures total hemoglobin (SpHb™), oxygen content (SpOC™), carboxyhemoglobin (SpCO®), methemoglobin (SpMet®) and pleth variability index (PVI®), in addition to oxyhemoglobin (SpO2), pulse rate (PR), and perfusion index (PI), enabling early detection and treatment of potentially life-threatening conditions.

For more than 25 years now, Masimo has been focused on a singular mission — to create noninvasive patient monitoring technologies that are more effective and reliable and to improve patient outcomes and reduce the cost of care by bringing these technologies to new sites and applications. The result is a portfolio of clinically-proven products that lead the way in innovation, performance and patient safety by giving health care providers the information they need to optimize clinical decision-making.

Looking for uncommon opportunities with an extraordinary company?

That’s right, we’re looking for ‘what-ifers’, ‘never-say-never-ers’, and ‘world changers’ — people who look beyond what others see — to join our expanding team. Granted, these are not ordinary job titles. But, then again we are not looking for ordinary people. We're looking for people who can, do, and will make a difference.

Do you thrive on fascination and accomplishment? Strive to make each day better? Remain faithful to your promises? So do we. At Masimo, we develop innovative medical technologies and noninvasive patient monitoring solutions that solve ‘unsolvable’ problems. Our work makes a measureable difference in the world by saving, extending and improving the lives of people of all ages, in all walks of life.

So, if you’ve got a big vision, the desire to make a big impact, and a yearning for unlimited possibilities, then we have BIG plans for you! Discover what Masimo has to offer and you’ll find a thriving career and work environment designed to provide the freedom and support you need to achieve great things every day.

The true value of any company begins with its people. At Masimo, we not only understand this, but we live it. That’s why we’re committed to providing our team with everything they need to do their best work. And, that’s also why we provide eligible team members with a total value package that helps them maintain their health, secure their financial future, and balance their work and personal lives. Our total value package includes:

► a generous compensation package with competitive base salaries, bonus/incentive compensation, recognition awards, employee referral and long-term employment incentives

► a comprehensive lifestyle benefits package that includes healthcare and other insurance coverages, an employee assistance program, paid time-off, and corporate discounts

► alternative savings opportunities consisting of a company-matching 401(k) retirement savings plan, stock options, credit union benefits, and more



Health Insurance

Comprehensive medical/dental/vision plan with flexible coverage options to best suit your individual needs.

Life Insurance

Company-paid basic life insurance benefit equal to two times your annual base salary with the option to purchase additional life insurance.

Long-Term Disability Insurance

Income replacement at up to 60% of your base salary when your non-occupational illness or injury continues for longer than 180 days. 


Up to 8 paid holidays each year.


Paid vacation time of 15 days per year, increasing by one week for every five years of service. 

Sick Time

Paid sick time is offered at 40 hours per year.

Family/Medical Leave

Masimo is intended to and will comply will all applicable laws govenering medical leaves.

Flexible Spending Account

Flexible Spending Account (FSA) that enables you to set-aside pre-tax dollars for out-of-pocket medical expenses and dependent daycare.

Retirement Savings Plan

A 401(k) savings plan including an employer match.

Employee Assistance and Work/Life Program

3 free counseling and assistance with personal, work, or family challenges.

Corporate Discounts

Special discounts to a variety of local amusement parks, theaters, entertainment events, movies and restaurants.

Employee Referral Program

Refer a qualified candidate and earn a cash bonus of $500 to $5,000 if the candidate is hired.

Company-Sponsored Social Events

You’ll have to join us to find out just how much fun working here can be!

Our distinctive culture and work environment have been described as energizing, innovative and limitless. It doesn't matter where you work or the position you hold, there’s a buzz of energy, a spark of creativity, and a sense of boundless discovery in our work that you’re guaranteed to feel!

Maybe it's the knowledge that something you did today will save lives tomorrow. Or, could it be all that free coffee, or the ultimate frisbee games happening across the field at lunch? All we really know is how much we enjoy our jobs. But, then again who are we anyway?

Our mission statement says it all, we are:

"Improving Patient Outcomes and Reducing Cost of Care... by taking Noninvasive Monitoring to New Sites and Applications."

At Masimo, we operate from a set of guiding principles that mean the world to us...

► Remain faithful to your promises and responsibilities.

► Thrive on fascination and accomplishment and not on greed and power.

► Strive to make each year better than the year before both personally and for the team.

► Make each day as fun as possible.

► Do what is best for patient care.

Now, we have just one question...is there a bit of Masimo in you?

Masimo Reviews

Rating Trends
Recommend to a friend
Approve of CEO
Masimo Chairman & CEO Joe E. Kiani
Joe E. Kiani
59 Ratings
  • Solid Company

    • Work/Life Balance
    • Culture & Values
    • Career Opportunities
    • Comp & Benefits
    • Senior Management
    Current Employee - Electronics Engineer in Irvine, CA
    Current Employee - Electronics Engineer in Irvine, CA
    Positive Outlook
    Approves of CEO


    Good salary, good promotions (almost universally promote from within), great new building, interesting projects and everyone has the attitude that we're all there to help people with new medical products.


    Generally under staffed, nothing else

    Advice to Management

    Great job! Keep it up!

Masimo Interviews

Interview Experience

Interview Experience


Getting an Interview

Getting an Interview


Interview Difficulty


Interview Difficulty




    Algorithm Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Negative Experience
    Average Interview


    I applied through a recruiter. The process took 4+ weeks. I interviewed at Masimo.


    Process took a month. Contacted by HR. Then I was given 5 sets of problems to solve. Once I sent the solutions, I was set up for on-site interview. Very unorganized interview process.

    Interview Questions

Masimo Awards & Accolades

Something missing? Add an award
  • Kerrin Rennie Award for Excellence in Medical Technology-Improving Quality of Life -, Medical Technology Association of Australia, 2015
  • America’s Best Small Companies, Forbes, 2013
  • Zenith Award, American Association for Respiratory Care (AARC), 2013
  • Argyros Medal for Visionary Leadership & Commitment to Patient Safety, Chapman University's George L. Argyros School of Business and Economics, 2013
  • Top Innovation Award, EMS World, 2013
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