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HighJump Software Management Team


Russell Fleischer, Chief Executive Officer

As CEO of HighJump Software and a member of the company’s board, Russell Fleischer guides overall corporate strategy and ensures the company serves its customers efficiently and effectively. He leads the management team as the company continues to aggressively expand its product portfolio and worldwide business both organically and through acquisition. He is an experienced software executive with more than 20 years of technical, operational and financial experience, as well as extensive M&A and business integration expertise.

Mr. Fleischer was most recently CEO of Healthvision Software, a healthcare software company acquired by Lawson Software in 2010. Under Mr. Fleischer’s leadership, Healthvision grew from $25 million in revenue to a global business serving 3,000 customers, employing more than 300 people and generating approximately $70 million in revenue. Prior to Healthvision, he served as CEO of TriSyn Group, an enterprise-class applications software company focused on the top 100 banks in the U.S. He has also held numerous senior management positions at both public and private technology companies, including InConcert, CheckFree, Dun & Bradstreet Software and Sales Technologies. In addition to his executive leadership roles, he has sourced, conducted due diligence and closed numerous transactions in conjunction with several private equity buyout teams ranging in size from $25 million to $1 billion. Mr. Fleischer has evaluated hundreds of transactions, closed more than 25, and has successfully syndicated more than $2 billion in aggregate debt offerings. Mr. Fleischer earned a bachelor’s degree in economics from Johns Hopkins University and a master’s from Vanderbilt University. He serves on the Vanderbilt Owen Graduate School of Business Alumni Board of Directors and also on the boards of Vero Software, Data Innovations and Homecare Homebase. He is a trustee of Cook Children’s Hospital. 

Matt Ouska, Chief Financial Officer

Matt Ouska oversees HighJump Software’s financial operations, mergers and acquisitions, treasury, facilities management, and other operational functions. Since joining HighJump Software, Mr. Ouska has contributed to the doubling in size of the business through strong organic growth along with closing several acquisitions.  His experience in integrating businesses has resulted in significant process synergies and cost savings for HighJump which have continued to strengthen the company’s profitability.     

Prior to HighJump, Mr. Ouska held positions at Retek and KPMG, where he worked with clients in the software and high-tech industries. He holds a bachelor’s degree in accounting from the University of Wisconsin-Madison.

Gary Nemmers, Senior Vice President and General Manager of Supply Chain Execution Group

Gary Nemmers is responsible for all operations pertaining to the supply chain solutions group, including strategy, general management, sales, services and marketing. His role encompasses growing and servicing the supply chain management offering through direct and indirect channels worldwide. Mr. Nemmers has been instrumental in getting HighJump on a remarkable growth trajectory to strengthen its position as a tier-one market player that enjoys an enviable and happy customer base.

Mr. Nemmers joined HighJump after managing the Americas’ direct sales organization for Infor Global Solutions, one of the largest and fastest growing enterprise applications companies in the world. Prior to joining Infor, he held senior roles in both SAP and Oracle Corporation. These roles included developing new sales channels for product sourcing as well as building several new highly successful sales “avenues to market” across the U.S., Canada and Europe. Mr. Nemmers also served as CEO and managing partner for DataTrend Information Systems where he helped grow the company from a start-up to $54 million in annual revenue in just four years. Along with his professional accomplishments, Mr. Nemmers holds a bachelor’s degree in behavioral psychology from Northwestern University and a master’s from Northwestern University’s Kellogg School of Management.  

Amy Stelling, Vice President and General Manager, DSD Solutions Group

Ms. Stelling oversees the customer account management and technical support components of HighJump’s direct store delivery (DSD) business. She manages the overall strategy for DSD, as well as the sales, professional services, account management, product strategy and support teams. Ms. Stelling also leads the supply chain support team of HighJump’s warehouse management systems business.

Ms. Stelling began at HighJump as a member of its professional services group, where she implemented HighJump solutions across multiple industries around the globe. Since then, she has held several leadership roles, most recently as vice president of worldwide support in which she was responsible for the software support team across all products and locations. Previously, Ms. Stelling aligned prospective customers’ business requirements with HighJump’s suite of solutions as the director of pre-sales. She also has led HighJump’s customer support efforts as director of worldwide support.

Prior to joining HighJump Software, Ms. Stelling implemented customer relationship management (CRM) systems for a CRM consulting practice. She holds a bachelor’s degree in management information systems and accountancy from the University of Wisconsin-Eau Claire. 

Nick Manolis, Senior Vice President and General Manager of TrueCommerce EDI Solutions Group

Nick Manolis leads the operations, product development and customer relations for the HighJump TrueCommerce EDI Solution group, ensuring that all solutions are affordable, robust and easy to use. This includes the end-to-end suite of trading partner connectivity solutions, EDI translation, data-mapping software, the transaction network and on-boarding services.

Mr. Manolis’ experience managing and growing organizations includes leaderships positions as the CEO of TrueCommerce, Inc., CFO of Outsell, Inc., COO for Janus Technologies and managing director of North American operations for Internet Securities. He began his career as an auditor with Deloitte & Touche. Mr. Manolis is an elected school board member of the Shenango Area School District and serves on the board of directors of VoxMobile. He has a bachelor’s degree in business administration from Slippery Rock University of Pennsylvania and is a certified public accountant. 

Ole Pedersen, Senior Vice President and General Manager of HighJump B2Bi Solutions Group

Ole Pedersen is responsible for all operations relating to the HighJump B2Bi solutions group in EMEA, including strategy, general management, sales, services and marketing. His role encompasses growing and servicing the Business to Business Integration offering through direct and indirect channels offering organizations a way to optimize trade relations and exchange business documents across the value chain by open and flexible managed cloud services.

Previously, Mr. Pedersen served as CEO of Evenex, where he contributed to a strong consolidation of the Evenex B2Bi business, providing a robust platform for accelerated growth both organically and through acquisitions in EMEA. Before joining Evenex, Mr. Pedersen grew his experience managing and developing organizations in leadership positions as the CEO and Co-founder of Cutwater, a provider of financial management services in the Nordics, CFO of Adserving International, a provider of online advertising, and Group Director of Julius Ink Group, an investment company. Along with his professional accomplishments, Mr. Pedersen holds a bachelor’s degree in Finance from the Copenhagen Business School, and began his career as a financial auditor at Arthur Andersen in Copenhagen, Denmark.

Dan Radunz, Chief Technology Officer

Dan Radunz oversees HighJump Software’s worldwide product development strategy and technology operations, supporting the company’s entire source-to-consumption software portfolio. This includes responsibility for global  R&D for all of HighJump’s software solutions and product strategy  and support operations for the supply chain execution solutions.  Mr. Radunz leverages his extensive knowledge of the industry’s latest trends and developments to guide HighJump’s innovation and solutions strategy and helps set the product visions that continue to create value for our new and existing customers and solves their supply chain execution challenges.

Mr. Radunz was a member of HighJump’s product development group for 13 years and rejoined the company in 2009. He has more than 25 years of experience using technology to deliver innovative software solutions. Prior to rejoining HighJump, Mr. Radunz was vice president of Network Operations Center for Wireless Ronin Technologies, where he managed the company’s around-the-clock support group and data center. He holds a bachelor’s degree in business with an emphasis in management information systems and a minor in computer science from the University of  Minnesota’s Carlson School of Management.

LeeAnn Belski, Vice President of Human Resources

As Vice President of Human Resources, LeeAnn Belski is responsible for global employee recruitment and retention, managing all benefit programs, ensuring we maintain our unique culture, and building an environment that helps every employee reach their full potential. Ms. Belski joined the company in 2007 after spending six years with Stellent, Inc, where she held a variety of HR management roles. Prior to Stellent, Ms. Belski held several technical recruiting positions with CSC (Computer Sciences Corporation), Stratagem, Inc. and Flatley Technical. Ms. Belski holds a BA in Psychology from St. Olaf College and has also earned her SPHR designation. She is an active member of HR Connection and the Twin Cities Human Resource Association.

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