RES Software – Why Work For Us?

Since being founded in 1999, RES Software has become the leader in making IT organizations 10x more productive at delivering IT services and managing user workspaces. Our company develops technology aimed at:

  • Creating value and making a difference for IT organizations
  • Unlocking the full potential of IT people
  • Driving better IT operational excellence

As a pioneer in the workspace virtualization category, RES Software enables you to centrally deliver, manage and secure the key elements of your user’s computing experience, independently of workstyles and devices.With over 200 employees worldwide, RES Software serves more than 2,500 customers with more than 3,500 deployments in 27 different countries. RES Software prides itself on continued innovation. Our company currently holds 11 patents for unique technology that helps IT departments increase their productivity each day.


​​​​​​​Mission and Values:​​​​

Our Ambition

  • People: Be a great place to work where people are inspired to be the best they can be.
  • Portfolio: Deliver pragmatic solutions, fanatical support and expert services that result in dramatic (10x) improvements in IT productivity.
  • Partners: Drive a winning community of customers and trusted advisors to deliver mutual, sustainable value.
  • Performance: Win as one focused, committed and agile team.

Our Mission

To be the leader at making IT organizations 10x more productive at delivering IT services.

Our technologies:

  • Create value and make a difference for IT organizations
  • Unlock the full potential of IT people
  • Drive better IT operational excellence

Our Values

The RES Software values represent the DNA of our company. It defines how people treat each other and provides a framework for decisions. It provides a guideline on how to evolve Our company further. We will live by the RES Software values in our day-to-day activities, guard and advocate them to everyone. It also enables us to tell the rest of the world what we stand for.

At RES Software we stand behind the following values:

  • Trust, respect and integrity Focus and discipline
  • Quality and speed
  • Creativity and innovation
  • Accountability and transparency
  • Enjoy the ride and have fun

Working at RES is like playing in the champion’s league of software development. You have to give 120% every day, but it’s such a kick! It’s amazing to see what a group of talented, devoted and focused people can do.

Peter Jansen, Software Architect

Bob Janssen

RES Software has the culture, vision and structure to provide any dedicated employee with various opportunities to grow on a professional level. No matter what the job title might say, each employee has the opportunity to impact the success of the company and gain valuable experience that can steer their career path in the direction they choose to.

Anca Popovici, Senior Marketing Manager - Americas


Working at RES gives me energy. It’s a pleasure working with such great products and amazing people!

Sabine Iltink, Senior Technical Writer


  • Comprehensive medical, dental and vision coverage
  • 401(k) savings plan
  • Flexible vacation and sick time policies
  • Company-paid life insurance
  • Company-wide commitment to a positive work/life balance
  • Opportunities for international work assignments
  • Professional mentoring and career development resources

Bob Janssen
Founder and Chief Technology Officer

Bob Janssen is the Founder and Chief Technology Officer of RES Software. He has been responsible for product vision, strategy and development at RES Software since founding the company in 1999 and acts as the most prominent RES Software spokesperson at industry events. He was instrumental in the creation of the RES Software flagship products, RES Workspace Manager and RES Automation Manager, released in 1999 and 2005, respectively. During his tenure, RES Software has sold well over one million licenses worldwide and his development team has issued more than 10 major releases. Mr. Janssen also holds several patents for the solutions he has developed at RES Software such as the 2010 patent for reverse seamless technology featured in RES Virtual Desktop Extender and other patents dating back to 2003.

Prior to founding RES Software, Mr. Janssen worked in several IT departments where he faced the day to day struggles of managing corporate desktops and delivering IT to users. This firsthand understanding inspired him to create products that solve the problems experienced by IT professionals on a regular basis and to coin the term “Workspace Management.” Bob worked as a System Administrator and later as a Software Developer building pragmatic software solutions using the eXtreme Programming (XP) methodology for Air Liquide, and as an Information Architect for Schenker, where he modeled, designed and supervised the construction of system and enterprise-level application solutions. He holds a Business Computing degree from the Fontys University of Applied Sciences.

Marc Zinnemers
Chief Operating Officer / Chief Financial Officer

As Chief Operating Officer and Chief Financial Officer at RES Software, Marc Zinnemers is responsible for leading the Corporate Finance, IT and Operations teams, as well as RES Software’s award-winning Support and Services team. He brings to RES Software more than 15 years of operational finance, controlling and management reporting experience in the information technology and advisory industries. 

Prior to RES Software, Mr. Zinnemers was Chief Financial Officer at Blue H Technologies, where he built the company from seed capital phase into a revenue generating company. Previously, Mr. Zinnemers served as Vice President of Corporate Finance and Administration for Gartner IT Research and Advisory Firm, and held the position of EMEA controller for i2 Technologies. 

Additionally, Mr. Zinnemers worked for both Exact Software and Akzo Nobel Pharma Group. He earned his finance degree from the University of Tilburg in The Netherlands.

Tracey Mustacchio
Chief Marketing Officer

As Chief Marketing Officer, Tracey is responsible for market strategy at RES Software, plotting the course for the company’s continuing growth and spearheading global product marketing and communication initiatives. Tracey brings more than 20 years of experience in marketing, business development and product management to RES Software, in addition to a long track record of helping companies strengthen their brand to dominate specific market niches.

Previously, as VP of WW Marketing for IBM's Information Management division, Tracey was instrumental in developing the company’s stance on big data and analytics. Prior to IBM, Tracey served as Vivisimo's (acquired by IBM) CMO and led all of Vivisimo's marketing and product management functions, including go-to-market strategy, public relations and lead generation. Before Vivisimo, Tracey held senior marketing and product management positions at TraceSecurity, Secure Software (acquired by Fortify Software), McAfee and Business Evolution (acquired by Kana). She also founded and operated her own strategic marketing consultancy that specialized in high-growth companies.

Tracey is a graduate of Virginia Wesleyan College, and graduated as one of ten Wesleyan Scholars.

Gene Bonacci
General Manager and Vice President, Americas

Gene Bonacci is responsible for sales, channel partnerships and technology partnership for RES Software in the Americas.

Throughout his career, Mr. Bonacci has been responsible for managing global sales and strategies for large technology companies and brings more than 15 years of experience in technology sales and leadership to his new role.

Most recently, Mr. Bonacci held the position of Global Vice President of Strategic Sales at Wyse Technology where he was responsible for Strategic Partners and the US Federal market. Prior to Wyse, he led sales efforts at Symantec Software as Global Director of Sales and Endpoint Virtualization. In that position, he focused on sales enablement, training and management coinciding with the global introduction of the Symantec Endpoint Virtualization desktop management solutions. Previously, Mr. Bonacci served as Global Vice President of Sales at AppStream Inc., where he drove significant revenue growth and channel strategy, leading to the company’s acquisition by Symantec.

Monika Bouchalová
Vice President, Human Resources

Monika Bouchalová joined RES Software in August 2007 as Vice President, Human Resources. She has 11 years of experience in the international Human Resources field. She previously held a position as Human Resources Manager EMEA at Progress Software Europe (based in the EMEA Headquarters in Rotterdam). She has experience in international HR, recruitment, international assignments, relocation matters, employment law, compensation & benefits, and employee administration (HR) systems.

Ms. Bouchalová relocated to the Netherlands in 2000. Until then she lived in Prague, The Czech Republic, where she worked for PepsiCo., DuPont, and the Airport Training Center Prague.

Ms. Bouchalová started her education at the Charles University in Prague where she graduated with a Masters degree in English and Education. She then obtained an MBA degree at the Open University, UK.

Bob de Kousemaeker
Vice President, Research and Development

As Vice President of Research and Development, Bob de Kousemaeker is responsible for all aspects of the creation of RES Software products, including leadership of software development teams in Netherlands, Romania and Boston. Bob joined RES Software in 2009 in product roles, advancing to Vice President of Product Management.

Previously Bob de Kousemaeker was a RES Software partner and solution architect at Capgemini, as well as earning deep experience with customer implementations of technologies from RES Software, Microsoft and Citrix. He consulted for IBM, Wang Global / Getronics, Login Consultants, and other premier consultancies in Europe. Bob was also a technology architect for the Dutch Ministry of Defense as well as the Ministry of Infrastructure and Environment, and began his career in a technology implementation role at Microsoft.

Bob de Kousemaeker earned his Bachelor of Science degree from Hogeschool Rotterdam.

Gerry de Bruijn
Vice President, Global Services and Customer Success

As Vice President of Global Services and Customer Success, Gerry de Bruijn oversees all customer programs, processes and best practices that contribute to helping enterprise IT departments quickly achieve value from their investment in RES Software. In his role, Mr. de Bruijn focuses on delivering agile services, fanatical support and dynamic enablement programs to valued RES Software customers and partners. He is also responsible for representing the ongoing needs of RES Software customers, including providing direct customer feedback into discussions regarding product roadmaps and RES Software business processes. He also oversees the RES Software customer community and solution assurance programs.

Before taking on his current role, Mr. de Bruijn worked directly with RES Software customers while managing a quickly growing support department. Under his leadership, RES Software has consistently achieved impressive customer satisfaction ratings, including a net promoter score that exceeds industry standards. Prior to joining RES Software, he held a variety of information technology roles for major global organizations, including Rabobank and Intentia (previously Lawson).

Mr. de Bruijn studied computer and information technology at Hogeschool in Utrecht, the Netherlands. He currently works out of the RES Software Americas headquarters.

Main Software 50 2014: Strong growth in turnover, employment and number of participants 

  • Main Capital Partners presents the Main Software 50, an annual ranking of the most successful independent Dutch product software companies. For the 3rd year in a row RES Software is a finalist.


Main Software 50 ranks RES Software 2nd for Fast Growing Independent Software Companies

  • They admired RES Software in addition to the autonomous growth, for the quality of RES Software’s revenue which is mainly product related and has an extreme strong foundation given the strong install base of existing maintenance customer of around $20million.

RES Software nominated for Dutch GD Gazellen Awards

  • RES Software has been nominated as fastest growing companies in The Netherlands of the Dutch Financial daily (Het FinancieelDagblad). It is known as FD Gazellenand it covers all industries and sizes of companies. The events is sponsored by Graydonand KPMG.


  • The Red Herring editorial team selected the 2011 Top 100 Europe in Amsterdam on May 25. This group of 100 companies are the most innovative companies from a pool of hundreds from across Europe. The Top 100 are evaluated on both quantitative and qualitative criteria, such as financial performance, technology innovation, quality of management, execution of strategy, and integration into their respective industries.

RES Software Reviews

75 Reviews
Rating Trends
Recommend to a friend
Approve of CEO
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Al Monserrat
0 Ratings
  • Great company with a lot of opportunities, but strategy sometimes feels rushed

    • Comp & Benefits
    • Work/Life Balance
    • Senior Management
    • Culture & Values
    • Career Opportunities
    Current Employee - Corporate Services
    Current Employee - Corporate Services

    I have been working at RES Software full-time (more than a year)

    Positive Outlook
    Approves of CEO
    Positive Outlook
    Approves of CEO


    Good compensation package; a lot of opportunities withing the company and help with growth within the company; They use their own software; people are willing and eager to collaborate between departments


    Current strategy might need some more foundation, too much changes at the last possible minute. Hopefully the new CEO will be able to steer to a path of structured growing of the company.

    Advice to Management

    Create a strategy and stick to it and make sure that all departments have time to prepare. This will increase the quality of the message delivered both internally as well as externally

RES Software Interviews

Updated Feb 3, 2015

Interview Experience

Interview Experience


Getting an Interview

Getting an Interview


Interview Difficulty


Interview Difficulty



  1. Helpful (1)  

    Knowledge Manager Interview

    No Offer
    No Offer


    I applied through a recruiter – interviewed at RES Software.


    This was a long process. It involved an initial phone interview and then an online personality test. That was followed by 3 in-person and 2 Skype interviews with senior management. I was successful with all of that and was told I would receive an offer letter. While waiting to receive the letter, past zero hour, I was told that the CEO suddenly recognized the importance of this position and wanted to interview me -- but that he'd be out for a week. At this point, a red flag went off. If the CEO did not trust the judgement of all the senior staff and the hiring process put in place, it seemed like an omen that a lot of good work and effort could also be derailed at the whim of the CEO. Since I was fortunate to be otherwise employed, I declined to continue this process.

    Interview Questions

    • How do you prioritize work when everything is "priority"?   Answer Question

RES Software Awards & Accolades

Something missing? Add an award
Best New Product of the Year (Enterprise) - Gold, Best in Biz Awards, 2014

Additional Info

Headquarters Philadelphia, PA
Size 150 to 499 Employees
Founded 1999
Type Company - Private
Industry Information Technology
Competitors AppSense

We’re the leading digital workspace technology company. For 15 years we've brought agility & enablement to the workforce while improving IT security. We do this through proactive & self-service access to the apps & services workers need when they need them, in a context that enables them to be most productive.

Together, RES products:
~ Empower the workforce through... More

Mission: We are a committed and agile team of people who have fun at work. Trust and respect permeate our relationships with each other. That's what makes us a great place to... More

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