Leadership Team

//Leadership Team
Leadership Team 2017-08-10T13:11:37+00:00

A team devoted to your success.


Our teams are self-driven and self-guided. They are given the autonomy they need to respond to our clients quickly and efficiently while providing exceptional services and solutions. ISE is considered a TEAM Centered Workplace by ICAD Group, which means that rather than a traditional leadership model where decisions are made top-down, we allow for greater collaboration and employee autonomy, through Trust, Enjoyment, Accountability and Managing the Whole Person.

Though we have scrapped the traditional management team structure, we do have a leadership team with unrivaled experience, commitment and expertise. Take a minute to read their bios below and learn a little more about what they do at ISE.

Leadership Team

Hass Machlab
Hass MachlabFounder, President and CEO
Hass founded ISE in 2002. With 20 years in software development, Hass is involved in the day-to-day strategic activities of end-to-end innovative system solutions to solve customers’ complex problems. Since ISE’s founding, Hass’s focus has been to build a growing and thriving culture with system focused, business-minded engineers. Hass loves to use state-of-the-art technology to build best-in-class products involving wireless communications and telematics systems. During his R&D years, Hass was awarded a patent and NASA’s “Creative Development of a Technical Innovation” award. Hass is a contributor to his community in many ways, including philanthropy as well as serving on many boards. Hass holds a Bachelor of Science Degree and Masters of Science Degree in Electrical Engineering from the University of Nebraska-Lincoln.

Hass is very focused on his family. While not at work, he can be found visiting his extended family, playing golf or soccer, gardening and skiing.

Scott Berry, CSM
Scott Berry, CSMVice President, ISE Professional Services
Scott is responsible for the overall business operations for ISE’s Professional Services, including the development of staff, execution of the strategic growth plan, and the overall profit and loss of the business. Scott works with ISE’s existing and prospective clients to connect their business challenges to our software engineering expertise in order to create solutions that will drive the client’s business forward. Prior to joining ISE, Scott held various leadership positions in Sales, Marketing and Channel Management, Program Management, and Business Development with Rockwell Automation/Allen-Bradley, Rockwell Collins, and Intermec Technologies, now part of Honeywell Scanning and Mobility. At ISE, Scott applies his background of over 25 years of experience in the Automation, Mobile Computing, Avionics and GPS Navigation markets to lead a team of world class professionals that are partnering with, and providing ever increasing value, to our clients. Scott is a Certified ScrumMaster® (CSM), and holds a Bachelor of Science in General Engineering with a Secondary Field in Computer Science from the University of Illinois, Urbana-Champaign.

When not working, Scott enjoys riding his road bike around the hills of Iowa, reading, and spending time with his lovely wife and three daughters.

Mark Schumacher
Mark SchumacherVice President, ISE Innovation Services
Mark leads and has the visionary role of driving innovation and strategy execution across all of ISE’s brands. With more than 20 years of experience in the transportation industry, Mark is responsible for all aspects of Innovation, including engagement of the product development team in the development of breakthrough innovation to achieve short and long-term growth throughout the entire company. Prior to joining ISE, Mark had worked on numerous truck product development projects at Navistar, including leading telematics product development. Mark holds a Mechanical Engineering Degree from the University of Dayton and an MBA from Indiana University.

When Mark is enjoying time off he can be found sailing or paddle boarding as well as teaching his kids to play soccer and t-ball.

Chris Nelson
Chris NelsonVice President, ISE Fleet Services
Chris is in charge of the overall business operations for ISE Fleet Services, which leverages ISE’s compliance product, eFleetSuite, and specializes in end-to-end solutions geared especially toward satisfying the safety and compliance demands of its commercial fleet customers in North America. He leads all facets of ISE Fleet Services, including product management, strategic partnerships, marketing and sales. Chris came to ISE with over a decade of experience in trucking and insurance risk management, where he represented some of the top 100 carriers in the United States and gained considerable first-hand knowledge of the challenges carriers face in dealing with safety, risk and regulatory compliance. Chris is a recognized leader in the industry and has been published in American Crane & Transport (AC&T) and American Concrete Pumping Association (ACPA) – Concrete Pumping magazines. In addition, he serves on the Specialized Carriers & Rigging Association (SC&RA) Safety & Training Committee.

When Chris is done working at the end of the day, you can often find him supporting his family at a local horse show. His teenage daughter Samantha competes nationally as the proud owner of, and rider on, an American Saddlebred (ASB) show horse.

Deb Droll
Deb DrollController
Deb is responsible for all financial aspects of ISE, ensuring that the financial performance of the company supports the future growth and success of the organization. Deb has over thirty years of experience in accounting and finance for the transportation and restaurant franchise industries. Deb holds a Bachelor of Science Degree in Accounting (with Honors) from the University of South Dakota, Vermillion.

When not at work, Deb enjoys many outdoor activities, including running and biking. She looks forward to summer each year and spending time at the family cottage in northwest Iowa.

Kirsten Wennerstrom, SPHR, SHRM-SCP
Kirsten Wennerstrom, SPHR, SHRM-SCP Director of Human Resources
Kirsten oversees the human resources function at ISE and has more than 18 years’ experience in the field. Her primary responsibilities include talent acquisition, employee relations, strategic planning, performance management and employee engagement. Prior to joining ISE, Kirsten held HR positions with Rockwell Collins, Go Daddy and Hilton Hotels Corporation. Kirsten has a B.A. in Sociology from Arizona State University. Additionally, Kirsten has earned her Senior Profession in Human Resources (SPHR) certification and her Society for Human Resources Management – Senior Certified Professional (SHRM – SCP) certification. She also sits on the Board of Directors for the Iowa Senior Human Resources Association as the Secretary/Treasurer and President-elect.

She is a huge Porsche enthusiast, but stopped recreational racing when she became a mommy to two little girls. When Kirsten is not at work, she is likely doing something with her daughters that involves glitter and sparkles!

Brian Slattery, CSM, ICP, ICP-ATF, ICP-ACC
Brian Slattery, CSM, ICP, ICP-ATF, ICP-ACCDirector of Engineering
Brian is responsible for planning and directing all aspects of software engineering activities within ISE and has more than 15 years of experience in software engineering. He works with teams to ensure all projects, initiatives and processes are executed to achieve ISE’s expectation of providing intuitive and scalable end-to-end solutions, while delivering the best customer experience in the industry. To further enhance collaboration, Brian has received the Certified ScrumMaster® (CSM), ICAgile Certified Professional (ICP), ICAgile Certified Professional – Agile Team Facilitation (ICP-ATF), and ICAgile Certified Professional – Agile Coaching (ICP-ACC) certifications. Prior to joining ISE, he worked in the transportation and healthcare industries as a software engineer for DSI and University of Iowa Hospitals and Clinics. Brian holds a Bachelor of Science in Biomedical Engineering from the University of Iowa.

When Brian is not at work he can be found running around in his backyard playing with his four kids or visiting Florida during winter for some time in the sun!