Meet the Team

The People That Power the Innovation.

Your trusted partner in Safe AI for AP – built for your success from day one.

DataServ’s Leadership Team

Founded by experienced business people as a Software as a Service company before SaaS was cool. The idea is to guarantee the success of each project by going beyond just software – we have included all of the knowledge and services required along with a strong ongoing relationship.

Established as a true Meritocracy where anyone can achieve and grow, we have a long track record of developing our people. Through staff development, we have built the smartest team in the industry, with more Certified AP Consulting Professionals than any other APA provider.

This team is proud of our commitment to providing best practice change management and continuous process improvement to all clients. This is demonstrated by the fact that more than 70% of our clients have been with us for over 10 years.

Jeff Haller

Co-Founder & CEO, CRO

Jeff has been building companies and fueling his entrepreneurial spirit for over two decades. His expertise spans several industries, including consulting, information technology, and telecom — all of which led to the founding of DataServ in 1994 – the first Software as a Service (SaaS) provider. Jeff witnessed the enormous amount of time and money companies were investing in Enterprise Content Management (ECM) software for installation, customization, deployment and rollout. In response, he created DataServ to deliver the value of SaaS within the ECM market. Since its founding, Jeff has led the company through many growth phases and three recessions – all while successfully building and maintaining strong client relationships. He is frequently a speaker at AP and Shared Services industry events and, as an alumnus of the University of Missouri – St. Louis, he serves on the Leadership Council of the College of Business Administration. Jeff was also the former board president of the Foster & Adoptive Care Coalition, which focuses on eliminating the time kids spend in foster care by quickly finding homes.

Kathi Haller, CPA

Co-Founder & COO, CFO

With more than 20 years of leadership experience, degrees in both Accounting and Computer Science, and deep expertise in software development, Kathi shapes our product vision. Prior to DataServ, Kathi spent 10 years in Deloitte’s audit practice, where she served several Fortune 500 clients as a CPA in the Manufacturing sector. This is where she gained an in-depth understanding of the AP transaction cycles. Her passion, integrity, and fairness have led DataServ to solid profitability, excellent client relationships, and a strong team, which are our most valuable assets. Kathi has been recognized on the list of Most Influential Business Women in St. Louis. She was formerly on the governing board for the Foster & Adoptive Care Coalition, the finance committee at Forsyth School, and served on the marketing committee of The St. Michael School of Clayton.

Drew Gillow

Vice President, CTO and CISO

With vast technical knowledge, strong leadership skills, and more than 20 years of supply chain technology experience, Drew is dedicated to ensuring technology investments keep pace with a company’s ever-evolving operational needs. Previously at Monsanto, Drew served in various IT roles during his 20-year tenure. He has managed projects in excess of $20 million and has earned industry awards, including AgGateway’s Ron Storms Memorial Award for lifetime contributions to electronic commerce in the agri-business industry. A graduate of Washington University in St. Louis, Drew holds an MBA 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.

Zach Figurski

Solutions Consultant II

As a Senior Solution Consultant with over 10 years of analysis and consulting experience and a degree in Management Information Systems, Zach brings excellent support capabilities to our clients and internal team members. Prior to DataServ, Zach worked with POOL4TOOL in North Carolina for just over eight years, where he managed multiple, large-budget project implementations. He facilitated and led many customer trainings and workshops and was the subject matter expert for the internal implementation teams and support department. Zach is passionate about learning new technologies and techniques that help provide our clients with quicker, more focused solutions. His experience in implementing complex SaaS solutions has been a vital asset to the DataServ team and our clients.

Amy Cameron

Sr. Manager, Solution Delivery and Invoice Processing Machine

Amy has been with DataServ for over 20 years, helping us improve our processes and capabilities for our clients. She offers a wealth of experience in business development, integration, outsourcing, vendor management, process improvement, business analysis, SaaS, and document management to help our clients succeed with DataServ and our Invoice Processing Machine solution. Amy’s extensive experience with DataServ ensures no stone is left unturned when clients come to us for their AP automation solutions.

Jill Vincent

Manager, Quality Assurance & Support

Jill Vincent has been with DataServ for over 16 years, bringing a wealth of experience across various teams, including the Invoice Processing Machine Team, QA, Tailoring, and Support. Her dedication to learning and growth within the company has been a hallmark of her career, where she excels in documentation and training. With a background in retail customer service, Jill’s versatility and commitment have made her an integral part of the organization. Outside of work, she enjoys spending time with her cats and pursues her passions for reading and writing.

Janet Deckman

Team Lead, Client Support / Client Engagement

With over 11 years of customer service experience as a Support Consultant/Senior Payroll Expert, Janet is knowledgeable in all aspects of payroll processing. She brings a well-rounded background in accounting and business function with incredible attention-to-detail to her role at DataServ. Through prior career experience, Janet has also gained strong research and problem-solving skills, including in auditing data and examining data integrity. Prior to DataServ, Janet received a degree in Business Administration and Management and worked in several Accounting roles with the National Information Solution Co-Op. Janet’s high quality standards and desire to help others have made her a wonderful asset to the DataServ team.

Joseph Colton

Tailoring Developer I

Joseph has perfected utilizing his vast technical knowledge to create incredible customer experiences. For over eight years, he has worked with clients, customers, and colleagues in a technical support role, offering expert product knowledge, complex troubleshooting of various software products, and support for internal teams to resolve escalated issues and cases. Joseph is a quick learner of new information and concepts, keeping up-to-speed with the latest technologies for DataServ clients, handling all requests with a friendly, personable approach.

Tony Mattera

Team Lead, Solution Delivery

Tony is a seasoned SME specializing in products and solutions within SaaS FinTech and Investment Banking. His motivation stems from a deep commitment to the progression of technology, fostering both his personal and professional growth. Prior to DataServ, he received a degree in Finance and Economics and gained career experience in various roles with Stifel Financial. As part of the DataServ team, Tony leads Solution Delivery, facilitating the design and initiation of our workflow automation solutions to help our clients streamline their invoice processing.

Chris Wuestner

Full Stack Developer II / Tailoring Team Lead

Since 2018, Chris has been an integral part of the DataServ team. Starting in Tier 1 support and then moving to Tier 2, he gained more experience with our application and began performing small development tasks and improvements requested by users. In 2020, he moved from the Support team to Tailoring, where he was able to focus on larger client projects and initializations and work closely with the Solution Delivery team to tailor DataServ solutions to specific client needs. In October 2021, Chris became the Tailoring Team Lead, taking charge of organizing and assigning the team’s sprints and participating in work to define and improve the standard solution and processes. Today, he is part of the Feature Development team, focusing less on client-specific tailoring and more on developing features and resolving Tier 3 support issues and bugs. Throughout his experience, his on-the-job beliefs have helped him become more client-focused than a typical developer, looking at his work from the client’s perspective and maximizing clarity and usability for the user. Outside of work, Chris enjoys cooking, going on hikes, and being an avid fan of all St. Louis sports teams.

Todd Suda

Senior Initialization Success Manager

Todd brings over 30 years of experience in business operations and IT leadership to his role as Senior Initialization Success Manager at DataServ. With an MBA in Management and PMP certification, he specializes in aligning people, processes, and technology to drive strategic transformation. Todd originally joined DataServ in 2015 and returned in 2025 after serving in key operational and project leadership roles at Centene Corporation, a long-time DataServ client. Known for his commitment to mentoring and cross-functional collaboration, Todd has a proven track record of delivering results across a wide range of industries including healthcare, government, SaaS, and telecommunications. His expertise spans Agile, PMI, and ITIL methodologies, and his return reflects his passion for DataServ’s values of performance, integrity, and teamwork.

Kristin Beatty

Lead Client Success Account Manager

As a member of the DataServ team for over eight years, Kristin brings a wealth of professional experience that helps her deeply relate with clients. Since 1998, she has experience working as a Business Consultant, Quality Assurance Engineer, Accounting Assistant, and even co-owner of a business, helping her understand what our clients need to create successful AP processes. Kristin’s uncanny ability to prioritize client concerns and ideas makes her an invaluable contributor to DataServ and a rock-solid support for both our loyal and new partners.

Nikki Pulkrabek

Client Success Account Manager III

Nikki is a dedicated, broad-minded, resourceful Client Success Manager, offering extensive experience in client and vendor relations, implementations, inventory management, troubleshooting, sales, business development, policies and procedures, process improvement, and pipeline management. With an ability to leverage dynamic interpersonal and organizational skills, she fosters partnerships, optimizes workflow processes, and enhances profitability. Nikki works hard to meet our clients’ needs to achieve true marketability and growth. Before joining DataServ, she gained career experience in various positions, including Training Consultant, Sales Account Manager, and Client Success Specialist, all of which have set Nikki up for success as part of the DataServ team.

join the team!

We’re always looking for talented individuals to join our team and help us shape the future of our industry. View all of our current opening!

join the team!

We’re always looking for talented individuals to join our team and help us shape the future of our industry. View all of our current opening!