OSIsoft – Why Work For Us?

OSIsoft Company Overview

“Our mission is to maximize the value our customers get from our product and services.” –Dr. J. Patrick Kennedy, CEO & Founder, OSIsoft 


OSIsoft Company Overview

OSIsoft (www.osisoft.com) delivers the PI System, the industry standard in enterprise infrastructure for management of real-time data and events. With over 10,000 customer installations in more than 110 countries spanning the globe, the OSIsoft PI System is used in manufacturing, energy, utilities, life sciences, data centers, facilities, and the process industries. This global installed base relies upon the OSIsoft PI System to safeguard data and deliver enterprise-wide visibility into operational, manufacturing, and business data. The PI System enables users to manage assets, mitigate risks, comply with regulations, improve processes, drive innovation, make business decisions in real time, and identify competitive business and market opportunities. 

From Infrastructure to Insight

With operations worldwide, OSIsoft, LLC is a privately –held company founded in 1980 by Dr. J. Patrick Kennedy and is headquartered in San Leandro, CA. Dr. Kennedy’s reputation as a pioneer in the industry has positioned OSIsoft as a recognized global leader with a dominant market position across multiple industries. OSIsoft’s singular focus on bringing value to its customers has resulted in the PI System remaining unrivaled in terms of speed, reliability, and scalability.  

For more on Dr. J. Patrick Kennedy’s vision and the OSIsoft story, watch the video below.  

At OSIsoft, employees are our most important asset.   

Our company is committed to maintaining an exciting and challenging work environment with a casual, supportive and team-oriented culture that:

  • Promotes the highest ethical standards and business principles
  • Encourages leadership, teamwork and open communication
  • Fosters innovation and creativity
  • Provides challenging and fulfilling opportunities
  • Attracts and retains talented, motivated people

Our Team

OSIsoft is a company like no other. Built by engineers, we hire the best and brightest. See what some team members have to say about working here:

Firstname Lastname, position
I'm continually amazed by our ability to find smart, creative, engaging people who are committed to making, marketing, selling and servicing the best product in our industry.
- Steve Nye,
Customer Service & Support VP

Mia Zhou
There are plenty of opportunities to work on different aspects of a great product—as well as all of the services around it.
- Mia Zhou,
Software Developer 
Mariana Sandin
The OSIsoft team is amazing! Our customers are the best, and there's always a challenge to solve. The company's philosophy is to let you be and decide your future.
- Mariana Sandin,
Systems Engineer 
Stuart Collins
Before joining OSIsoft, I played a small game in life—since then I've talked with industry movers, taught classes around the country, and even started a podcast show. OSIsoft gets my stamp of approval.
- Stuart Collins,
eLearning Specialist 
Ahmad Fattahi, PhD
I love the diversity of activities I get to do in vCampus. I research new technologies, work on ideas and interact with customers. I also have a great time with Healthy Snack Thursdays, where our team brings healthy food and discussion to the office.
- Ahmad Fattahi, PhD,
vCampus Support 
Team Leader 
D.J. Lee
I love my job because it enables me to meet professional contacts all around the world and use those contacts to host fun, successful corporate events.
- D.J. Lee,
Events Coordinator 
Jarita Sirois
As a university recruiter, I get one question more than any other: What's the growth potential like at OSIsoft? I have to laugh each time. I think about my career path—which, at any other company in the world, wouldn't be possible.

I'm an engineer who came to OSIsoft out of school. While doing my job, I asked a simple question about internal training and ended up managing the worldwide internal training program. I am now the manager of the University Recruiting Program working in Human Resources.

The next thing they say is, "you must have been with OSIsoft for many years to have done all that." I'm not sure they believe me when I say it's only been four years.
- Jarita Sirois,
Talent Management 
 Group Leader 
Firstname Lastname, position
I have worked at OSIsoft for 19 years. I enjoy working with a brilliant, passionate and fun group of people who care about our products and customers.
- Julie Zeilenga,
Software Engineering Group Leader 
Firstname Lastname, position
At OSIsoft we thrive on the strength of our workforce. We work on challenging projects in an environment that encourages teamwork, creativity and innovation. 
- Barry James,
Technical Support Engineering 
Group Leader  
Firstname Lastname, position
The melting pot of cultures and backgrounds here is always exciting. It's great to work with all of these different personalities.
- Mike Dupuis,
Marketing Communications Manager 
Firstname Lastname, position OSIsoft is a very choose-your-own-destiny type of company. If you have a good idea or are interested in something other than your current role, you can always create your own career path. 
- Steve Pilon,
Former Product Manager 

OSIsoft Reviews

78 Reviews
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OSIsoft CEO J. Patrick Kennedy
J. Patrick Kennedy
62 Ratings
  • Featured Review

    4 people found this helpful

    Exceeded my expectations, and only getting better

    • Comp & Benefits
    • Work/Life Balance
    • Senior Management
    • Culture & Values
    • Career Opportunities
    Current Employee - Customer Support Engineer in San Leandro, CA
    Current Employee - Customer Support Engineer in San Leandro, CA

    I have been working at OSIsoft full-time (less than a year)


    As a CSE we solve problems for customers, making the work very manageable and fun in a challenging/problem solving way. The company atmosphere is a good mix of hard working and professional with relaxed and casual. Good work-life balance.

    This place has exceeded my expectations because there are way more opportunities than I initially realized. There are offices all over the world (albeit not huge ones), and there is the opportunity to do and exchange with another office (e.g. spend a month working in Frankfurt, Germany).

    Also, effective July 2014, OSIsoft now offers 401k matching of up to $3,000, which is a new development.

    The company is also growing rapidly. It has gone from 1,100 to 1,300 employees in just one year and has had sales over $350 million. The office headquarters were just renovated and a new building is about to be constructed just south of the main one (to be completed by 2017) which will create an OSIsoft campus.

    Commuting is also very easy. It's right next to a BART station, and if you live in SF, the drive is not bad because it's a reverse commute so you don't have to deal with bridge traffic. I drive from the Marina and it's only 45 minutes, which is good for the bay area. It's an easy drive from anywhere in East Bay.


    The product is not particularly sexy or exciting (the PI System is a plant information system that collects, stores, archives, analyzes, and displays time-series data) like the products of other bay area tech companies, however it plays a vital role behind the scenes in a whole host of industries, including pharmaceutical, mining, manufacturing, power, oil & gas, and chemicals.

    Advice to ManagementAdvice

    Make sure to keep up with the times and update products and services accordingly. Things are moving fast in tech but we seem to be keeping up.

    Positive Outlook
    Approves of CEO

OSIsoft Interviews

Updated Mar 15, 2015
Updated Mar 15, 2015

Interview Experience

Interview Experience


Getting an Interview

Getting an Interview


Interview Difficulty


Interview Difficulty




    Software Developer Interview

    Anonymous Employee in San Leandro, CA
    Anonymous Employee in San Leandro, CA
    Application Details

    I applied through college or university – interviewed at OSIsoft.

    Interview Details

    This is the on-site interview. I got the opportunity after an on-campus interview. The interview took the whole morning. First 30 mins of typical HR question like why you like this job. Then it is 3 rounds of engineering questions, each round took 1hr. I got rejection the week following the interview :(

    Interview Questions
    • Write the strcmp function.
      Then given the password check is using this function, what security issue do you have? How to crack this system.

      There are also several questions of reading a piece of code, figuring out what it is doing, and what possible security/stability issue it might have.

      Generally they are not simply programming questions. They require you have a vision on system design with emphasize on system robustness.
      Answer Question
    No Offer
    Neutral Experience
    Difficult Interview

OSIsoft Awards & Accolades

Something missing? Add an award
Presidential “E” Award for Exports, International Trade Administration, 2012
Microsoft Sustainability Partner of the Year, Microsoft Partner Network, 2011
Technology Partner Award, Manufacturing Leadership Awards, 2012
Top Workplaces -- Small, Philly.com, 2012
Presidential “E” Award for Exports, Business Wire, 2012
Show More

Additional Info

Website www.osisoft.com
Headquarters San Leandro, CA
Size 1000 to 5000 Employees
Founded 1980
Type Company - Private
Industry Information Technology
Revenue $100 to $500 million (USD) per year

OSIsoft (www.osisoft.com) delivers the PI System, the industry standard in enterprise infrastructure, for management of real-time data and events. With installations in 107 countries spanning the globe, the OSIsoft PI System is used in manufacturing, energy, utilities, life sciences, data centers, facilities, and the process industries. This global installed base relies upon the OSIsoft PI System to safeguard data and deliver enterprise-wide visibility into operational, manufacturing and business data. The PI System enables users to manage assets, mitigate risks, comply... More

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