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.

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.

Brian Slattery, CSM, ICP, ICP-ATF, ICP-ACC
Brian Slattery, CSM, ICP, ICP-ATF, ICP-ACCVice President 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!

Rich Lineback
Rich LinebackDirector of Business Development, Professional Services
Rich leads our Business Development team and is responsible for establishing strategic partnerships within Trimble and with external organizations. With more than 30 years of experience in software and systems engineering, business capture, and strategic planning with growth-oriented businesses, Rich’s primary role is to identify and develop sustainable business relationships that enable ISE to leverage its core competencies in technical innovation to address significant business challenges being experienced by our partners. Prior to joining ISE, Rich worked in Silicon Valley with a successful technology startup, as an executive with Pearson Education, and in business development with several Iowa-based startup businesses. Rich holds a Bachelor of Arts Degree in Mathematics and Computer Science from Augustana College.

Rich’s hobbies include golf, spending time with his family and pets, and travel…especially travel for art appreciation.

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.