About Us
WaterSignal grew out of John Lie-Nielsen’s work with Georgia Tech as founder of Green Habitats, an organization that promotes sustainable building, energy and water conservation.
WaterSignal principals are also property owners concerned about water usage and cost. Areas of drought, escalating water/sewer costs, plus water restrictions inspired us to develop better ways to measure and manage our most precious resource:
WATER
WaterSignal is represented by 
to the Multifamily Industry.
HandyTrac is a member of:
NAA
National Apartment Association
NMHC
National MultiHousing Council
NSC
National Suppliers Council.
WaterSignal Founder
John Lie-Nielsen is a member of:
AWWA
American Water Works Association.
Southface Energy Institute.
John Lie-Nielsen, Chief Executive Officer, has more than 25 years leadership experience in technology and Real Estate. In 1995, he started HandyTrac Systems which provides key control for the multifamily industry. In 1983, he founded Johnstown American, which managed 180,000 apartment and condominium units. He is also Founder of Green Habitats Foundation, which promotes sustainable building, energy, and water conservation. Lie-Nielsen is a Phi Beta Kappa graduate of Emory University in Atlanta with a BA in Economics. He is a Realtor. He is a member of the Board of Visitors of Berry College. He is a member of Southface Energy Institute and the American Water Works Association.
Tim Buffkin, Vice President, has a construction background spanning 30 years. During this time, he managed the construction or renovation of over 7500 apartments and condominiums, as well as houses and commercial. He is a “Green” pioneer, and a member of Southface Energy Institute. Recently as Director of Operations for Green Habitats Foundation, he worked with GA Tech School of Architecture, to relocate and install GA Tech’s Solar Decathlon House at Tellus Science and Technology Museum in Cartersville.
Tibor Szenti, Development Engineer, has 20 years experience as an electrical engineer. Tibor designed the electronic components and programming for the HandyTrac Key Control System and website. He is an expert in Assembly language and C as well as C#, Perl, mySQL, HTML and JavaScript. He graduated from the University for Electric Industry and Engineering Budapest, Hungary.
Karen T. Johnson, Controller has more than 30 years of experience in corporate and construction accounting for real estate firms for which she prepared financial reporting and cash projections. Karen attended the University of Tennessee.
Eric Overhage, Senior Vice President Strategic Marketing, has more than 15 years of experience marketing to the multifamily housing industry. He serves as Chair of the National Suppliers Council, is a Leadership Lyceum graduate, and holds a Certified Apartment Supplier (CAS) designation. Prior to joining HandyTrac, Eric served as Vice President Marketing for Interline Brands, General Manager of Maintenance USA, and business unit general manager with General Electric. Overhage earned degrees from both Vincennes and Indiana University.
Fred Johnson, Project Manager has 12 years experience providing technical support in the audiovisual and DBS field. He has a Bachelor of Science degree in Communications from Northern Illinois University.
