Our Team

Founded by business people that happen to be developers, our team works with respect and integrity – not always doing what is most profitable – willing to argue for what is right – always in the best interest of our clients. We believe your success and ours comes from doing the right thing.

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Jeff Haller

CEO & MANAGING PARTNER

Jeff has spent over 20 years in sales, marketing and company-building. His expertise spans consulting, information technology, and the telecom industry — all of which led to the founding of DataServ in 1994. Although the term had not been developed yet, DataServ was the first Software as a Service (SaaS) provider of document and process automation. Jeff has successfully led the company through many growth phases and at least two recessions. He is also former Board President of the Foster and Adoptive Care Coalition, which is focused on eliminating the time kids spend in foster care by quickly finding them homes.

Kathi Haller

Kathi Haller, CPA

CHIEF FINANCIAL OFFICER

Kathi is Partner, co-Founder and Chief Financial Officer. As a dual major in Accounting and IT and experience in software development, her unique skill set, deep financial expertise and 15 years of leadership shape our product vision. Her responsibilities include not only the Finance, Product and Development teams, but also the Legal, Human Resources and Digital Mailroom functions. In her product development role, she built an amazing development team and process, inspired our Simple philosophy, invented AutoVouch™ and IPM™ as well as established pricing and contract processes. Prior to DataServ, Kathi spent 10 years in public accounting at Deloitte. In her progressively more responsible roles within the Audit practice, she served several Fortune 500 clients and she gained an in-depth understanding of a variety of accounts payable, accounts receivable and human resource transaction cycles and document flows as well as compliance and audit requirements. Her passion, integrity and fairness have led DataServ to strong profitability, excellent long-term client relationships and a strong team, which is our most valuable asset. She recently served a six-year Governing Board term with the Foster & Adoptive Care Coalition and currently serves on the Marketing committee of St. Michael’s SchoolKathi loves cooking and entertaining for friends and family, supporting children’s charities and is very artistic.

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Julie Lintner

CLIENT SUCCESS DIRECTOR

Julie has 20+ years dedicated to technology and helping clients improve business processes. Most of that time has been focused in the Enterprise Content Management (ECM) industry and leading Professional Services teams. Julie was previously at KnowledgeLake as the VP of Professional Services and most recently assisted RecordLion, a local SaaS company, in building the processes for their Services team. She has a Computer Information System degree from Missouri State University and an MBA from Washington University. Julie also has a passion for teaching and is an adjunct faculty member at St. Louis University. Julie is a St. Louis native and enjoys spending time with her family and enjoys hiking and mountain biking.

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Drew Gillow

DIRECTOR OF TECHNOLOGY

Drew brings more than 20 years of supply chain technology experience in addition to vast technical knowledge, he offers business savvy and a strong history of leading teams of IT professionals to ensure technology investments keep pace with a company's ever-evolving operational needs. Drew served for 20 years in various IT roles at Monsanto in St. Louis. Drew has managed projects in excess of $20 million and has earned industry awards, including AgGateway's Ron Storms Memorial Award for lifetime contribution to electronic commerce in the agri-business industry. A graduate of Washington University in St. Louis, he holds a Master of Business Administration and degrees in computer science, electrical engineering, and systems engineering. When he’s not spending time with his wife, four children and dogs, Drew enjoys rehabbing houses and traveling.

Tom Fischer

Tom Fischer

DIRECTOR OF MARKETING

Tom brings his passion for understanding the marketplace, connecting with buyers, and collaborating with client teams to his Marketing role at DataServ. With over 20 years of experience in a B2B environment, Tom is well-versed in digital marketing, demand generation, brand, public relations, and market research disciplines. His prior work at Equifax and Maritz developed his expertise in financial services and human resources markets. Tom brings a unique combination of creative and analytical thinking to his role which are vital to developing effective marketing and communications programs that demonstrate DataServ value. Tom has a Marketing degree with an Accounting minor from Missouri State University and a MBA from St. Louis University. Subscribing to a ‘life is good’ outlook, Tom loves keeping up with his two children, traveling, and all things outdoors.

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