Our Team

Founded by business people, not developers, our management team leads with respect and integrity — not always doing what is popular willing to argue for what is right always fair.

We believe in our business and our clients’ success, and we have a good time doing it.

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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.

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Kathi Haller, CPA

CHIEF FINANCIAL OFFICER

Kathi is a co-owner of DataServ and currently serves as its Chief Financial Officer. Her responsibilities include not only the Finance team, but also the Legal, Human Resources, and Client Success functions. Client Success includes team members which deliver Client Support as well as DataServ’s Digital Mailroom service. During the last 10+ years at DataServ, Kathi has been responsible for driving profitability, creating scalable operations, providing funding for DataServ’s foundation and growth, and providing strategic direction. Most recently, Kathi has taken on a product development role in updating and standardizing DataServ Solutions. Prior to DataServ, Kathi spent 10 years in public accounting at Deloitte. In her progressively more responsible roles in the Audit practice, she served several Fortune 500 clients. As a Senior Manager, she gained an in-depth understanding of a variety of accounts payable, accounts receivable and human resource transaction cycles and document flows. Her passion and fairness have led DataServ to strong profitability, excellent long-term client relationships and a strong employee team which is an asset to the organization. She recently served a six-year Governing Board term with the Foster & Adoptive Care Coalition and also currently serves on the Finance Committee at Forsyth School in St. Louis.

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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 and 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.

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