Leadership Team

PROS is our people. And our vision has always been singular: help people and companies outperform by enabling smart selling in the digital economy. Meet the leaders keeping PROS on the cutting edge.

Andres D. Reiner

President and Chief Executive Officer

PROS President and Chief Executive Officer Andres Reiner joined the company in 1999. He was appointed to his current role in November 2010 and also serves as a member of its board of directors.

Reiner has led PROS to record revenue growth, fueled by his vision and strategy around innovation, customer success and helping people achieve their full potential. Under his leadership, the company has expanded its global reach and scale, introduced numerous new products, entered new markets, grown its partner ecosystem, completed four acquisitions and more than tripled the size of the team.

Reiner has held a broad range of leadership roles that provide the breadth of experience and understanding of how to drive growth. In this series of increasingly responsible roles, he has led products and product management, marketing, global alliances, science and research, and development of the company’s next-generation software portfolio.

Prior to joining PROS, Reiner held various technical and leadership positions in software-based companies including Platinum Technology and ADAC Healthcare Information Systems.

Reiner serves on the board of directors at Paylocity Holding Corporation (Nasdaq: PCTY), a cloud-based provider of payroll and human capital management software solutions. He is a member of the Young Presidents’ Organization (YPO). Reiner received the Ernst & Young 2015 Entrepreneur Of The Year Award® in the technology category for the Gulf Coast.

He earned a B.S. degree in computer science from the University of Houston.

Stefan Schulz

Chief Financial Officer

Stefan Schulz joined PROS in 2015 and serves as Executive Vice President and Chief Financial Officer.

He is responsible for PROS finance, accounting, corporate development, information technology and legal teams globally. Schulz reports to President and Chief Executive Officer Andres Reiner.

Schulz brings to PROS more than 20 years of financial and operations experience where he has built internal capacity to support high-growth, and has led the evaluation and integration of multiple acquisitions. Prior to joining PROS, he served as Chief Financial Officer at Digital River, Inc., a global provider of commerce-as-a-service solutions, headquartered in Minneapolis. In this role, Schulz was charged with building the company’s full-service merchant-of-record and seller-of-record offering, and overseeing the company’s internal transformation to greater efficiency and scale.

He previously spent six years with Lawson Software, an enterprise resource planning software company. As senior vice president, Chief Financial Officer and Chief Accounting Officer, Schulz led the acquisition and integration of two companies in strategic industry growth markets.

Schulz worked for 12 years at BMC Software during a period of high growth, where he held several leadership roles, the last as vice president, global revenue operations. Schulz began his career with Arthur Andersen & Co.

He earned a B.B.A. in accounting from Lamar University.

Leslie J. Rechan

Chief Operating Officer

Les Rechan, Chief Operating Officer, joined PROS in May 2020. He leads the go-to-market, customer experience and engagement functions to further scale and grow these operations globally. Prior to his appointment to COO, Rechan served on the PROS board of directors from 2015 to 2020 as a member of the Compensation and Leadership Development Committee, and the Nominating and Governance Committee.

Prior to PROS, Rechan served as President and Chief Executive Officer of Solace Systems, a smart data movement solutions company, headquartered in Ottawa, Canada. He has also served as President, CEO and a director of Halogen Software, a cloud-based talent management software provider, which was acquired by SABA.

Rechan previously served as General Manager, IBM Business Analytics Division, and has also served as Chief Operating Officer of Cognos. Moreover, he has held global executive leadership roles with Oracle, Siebel Systems, Cadence Design Systems and Onyx Software.

Rechan currently serves on the advisory board of Cognitive Scale, a privately held augmented intelligence cloud platform company, MicroStrategy, a leading provider of enterprise analytics and mobility software and services and JASCI software, a privately held supply chain acceleration cloud solutions company.

Rechan earned his M.A. in Management from Northwestern University, a B.S. in Electrical Engineering and a B.A. in organizational behavior from Brown University.

John Billings

Senior Vice President, Global Travel and Transportation

John Billings, Senior Vice President, Global Travel and Transportation, joined the company in 1999. He is responsible for accelerating the adoption of the PROS Platform for Travel Transportation, which includes revenue management, sales, distribution, and retailing solutions across both passenger and cargo airlines. Additionally, Billings oversees the growth and diversification of the PROS transportation and logistics business, including trucking, rail, and shipping.

A seasoned, well-respected sales leader, Billings has served in a series of leadership roles over his 20+ year tenure at PROS. He has been instrumental in developing the go-to-market strategy for the Travel sales teams, cultivating a team of highly successful sales leaders and consultants, keeping a pulse on industry trends, and building long-lasting relationships with global partners and customers.

Billings earned an M.B.A. from the University of St. Thomas and a B.B.A. in Business Analysis/Management Science from Texas A&M University.

Nikki Brewer

Chief People Officer

Nikki Brewer joined PROS in 2017 to lead our global Total Rewards team and now serves as its Chief People Officer. She leads the global human resources team, where she oversees the talent acquisition, talent development, rewards, culture and diversity strategies. A key focus for her team is driving innovative employment initiatives that make PROS a destination technology company for outperformers and fuel the company’s growth around the world.

During her tenure leading the global Total Rewards team, Brewer drove significant changes to the PROS benefits program and branding, strengthened the PROS reward programs, and overhauled PROS human capital IT systems resulting in a vastly improved PROS employee experience.

Prior to joining PROS, Brewer served in a range of increasingly responsible human resources roles in the energy industry both in the US and abroad. Most recently Brewer served as Director of Total Rewards for Columbia Pipeline Group (now TC Energy), where she was as a member of the HR leadership team, led the annual reward programs, and was a key member of the M&A team.

Brewer earned both an M.B.A. and bachelor’s degree in business administration from the University of Houston-Clear Lake.


Scott Cook

Chief Accounting Officer

Scott Cook joined PROS in 1999 and serves as Senior Vice President and Chief Accounting Officer.

Since joining PROS, Cook served as Vice President and Corporate Controller where he oversaw global corporate and revenue accounting, external financial reporting, treasury and financial controls covering all aspects of PROS business. He reports to Stefan Schulz, Executive Vice President and Chief Financial Officer.

Cook has more than 30 years of accounting and finance leadership and experience in a high-growth environment. Throughout his tenure at PROS, Cook successfully supported PROS IPO, several follow-on equity and convertible debt offerings and led the financial and accounting integration of multiple acquisitions in strategic industry growth markets.

Prior to PROS, Cook served as Executive Vice President and Chief Financial Officer for Flotek Industries, Inc. in Houston. Cook began his career in public accounting with both Ernst & Young and Grant Thornton LLP.

He earned a B.B.A. in finance from the University of Texas at Austin and is a Certified Public Accountant in the State of Texas.

Ajay Damani

Executive Vice President, Engineering

Ajay Damani joined PROS in 2001 and serves as Executive Vice President, Engineering. He has oversight and development of our global Engineering, Architecture, Quality Engineering and Cloud teams across B2B and Travel. His teams are responsible for delivering and operating our innovative software platform and products that align with the current and future requirements of our customers and the market.

Throughout his tenure at PROS, Damani has been instrumental in advancing our technical excellence within and across the Engineering organization. His consistent passion and commitment to creating scalable, highly performant and next-generation technology continues to yield solutions that meet business needs spanning a broad set of B2B and Travel use cases.

Central to his team’s work has been the development of real-time scalable technology that has transformed how customers digitally sell by delivering AI-based price recommendations in real-time at the point of transaction across any channel.

Damani earned a B.A. in Biology and a B.S. in Computer Science from The University of Texas at Austin.

Sunil John

Chief Product Officer

Sunil John, Chief Product Officer, joined PROS in 2005 and is responsible for the strategic direction of the PROS Platform for B2B and for Travel. In this role, John is accelerating development of PROS differentiators in AI, design, and extensibility that define and anchor PROS enterprise-grade technology. He oversees our Product Management, Data Science, and User Experience functions while working closely with the Corporate Development team.

During his time at PROS, John has served in numerous roles with increasing responsibilities in both Product Management and Corporate Development. He was the first product manager of our pricing solution suite, which continues to be recognized as industry-leading technology today. He also led the company through several significant acquisitions and oversaw operational execution across the company during our Cloud First transformation.

Prior to PROS, John built his technology, product, and business expertise in developing customer-focused products and solutions for a variety of industries, including a vehicle route optimization solution that was a finalist for the 2004 Franz Edelman award.

John earned a B.S. in Biomedical Engineering with a concentration in Electrical Engineering from Johns Hopkins University.

Katrina Klier

Chief Marketing Officer

Katrina Klier, Chief Marketing Officer, joined the company in March 2021. Klier is responsible for aligning global marketing strategy and programs with corporate priorities. Central to her mandate is optimizing demand generation, deepening customer and prospect engagement and amplifying brand visibility to fuel corporate growth.

With more than 25 years of high-tech experience spanning software and professional services organizations, Klier has a proven track record in driving global strategy, brand value and revenue growth. She brings deep expertise in data analytics to transform marketing strategy, monitor end-to-end customer journeys, and deliver an exceptional digital customer experience.

Prior to PROS, Klier served as global managing director and head of digital marketing, communications and capabilities at professional services firm, Accenture. In this role, she drove the company’s digital marketing transformation, nearly doubling brand value and significantly increasing revenue. Prior to Accenture, Klier served in global executive leadership roles at Microsoft for OEM Digital Marketing & Sales and Worldwide OEM Channel. Additionally, Klier has held marketing roles with increasing responsibility at GE, MCI and Hewlett-Packard.

Klier earned a B.S. in Finance and International Business from Northeastern University. She plays an active role as a board member/advisor for several executive professional associations including CHIEF, The CMO Club and CMO Executive Summit.

Sherry Lautenbach

Senior Vice President, Global B2B Sales

Sherry Lautenbach, Senior Vice President, Global B2B Sales, joined the company in January 2021. She is responsible for driving enterprise adoption of PROS AI-powered solutions as organizations seek to transform end-to-end selling experiences across traditional and digital channels to meet buyers’ increasing demands.

An accomplished sales leader with deep expertise in enterprise SaaS and software sales, Lautenbach brings more than 25 years of experience achieving and exceeding sales and revenue objectives.

Prior to PROS, Lautenbach served as Senior Vice President for Cloud Sales at Oracle, where she drove the cloud agenda to the top 120 key accounts. Prior to Oracle, Lautenbach served in senior level roles for Nutanix and IBM. At IBM, she was selected as a member of the IBM Senior Leadership Growth Transformation Team, responsible for driving strategy, execution and transformation success across the company.

Lautenbach earned a B.A. in History from Tulane University.

Damian Olthoff

General Counsel

General Counsel and Chief Compliance Officer Damian Olthoff joined PROS in 2011. He also serves the company as its secretary and is responsible for all legal operations. Olthoff brings to PROS experience in governance, corporate development, finance and commercial transactions.

Prior to joining PROS, he served for six years as general counsel for Animal Health International, a publicly traded pharmaceutical distributor. With Animal Health, Olthoff led the company’s foreign and domestic legal affairs, including complex commercial transactions, the company’s 2007 initial public offering, numerous acquisitions and litigation management. He also served as counsel for TrinTel Communications, then the largest privately held developer, owner and operator of wireless telecommunications facilities in the United States. He previously held various roles with Sprint – now Sprint Nextel – where he assisted with development and management of its $2+ billion real estate portfolio, including negotiations of commercial real estate agreements.

Olthoff earned a Juris Doctorate from the University of Missouri-Kansas City School of Law, and a B.B.A. in business administration from the same institution.

Martin Simoncic

Chief Customer Officer

Martin Simoncic, PROS Chief Customer Officer, joined the company in January 2021. He leads the global customer experience and engagement teams to help PROS further accelerate customer value and deliver a world-class customer experience at scale.

Simoncic rejoined PROS after serving as Vice President, Customer Success and Professional Services at Vertafore, where he was responsible for driving high velocity onboarding and adoption across the customer base of 20,000+. At Vertafore, Simoncic was instrumental in driving transformation of the customer organization, resulting in improved customer satisfaction, financial performance, customer retention and improved employee engagement.

Prior to Vertafore, Simoncic spent 11 years at PROS, where he started as an Implementation Consultant leading many of the company’s largest implementations. During his tenure at PROS, he served in a number of roles including VP of Professional Services, where he led the global B2B professional services team through periods of high growth, and VP of Product Management, where he defined and drove B2B product strategy forward during the company’s transition to SaaS.

Since 2012, Simoncic has served as an Adjunct Professor at Rice University’s Jesse H. Jones Graduate School of Business, educating graduate students on the key strategic and tactical concepts of advanced pricing, omnichannel optimization and revenue management.

Simoncic earned an M.B.A. from the University of Arkansas at Fayetteville, and a B.S. in Computer Information Systems from Louisiana Tech University. Additionally, he completed the Leading Professional Services Firms executive program at Harvard Business School.

Benson Yuen

President, Travel

Benson Yuen joined PROS in 1988. His analytical and problem-solving skills have been instrumental in the successful installation and implementation of PROS software products in diverse customer environments. In addition, his practical pricing and revenue optimization experience has contributed substantially to the design of PROS software products.

Prior to joining PROS, he served as Director of Pricing and Central Reservations Control for a transportation company. During his tenure, Benson was responsible for the company’s revenue optimization function, which included marketing automation software development, pricing and tariff strategies, and the direction of the central reservations control system.

Benson graduated summa cum laude from the University of Central Florida, with a Bachelor of Science degree in Business Administration.

Craig Zawada

Chief Visionary Officer

Craig Zawada joined PROS in 2010 and serves as its Chief Visionary Officer. He is responsible for creating and articulating the vision for how PROS uses the latest technology to help companies drive incremental sales growth and profit improvement.

Zawada also works with new and existing customers to define the implementation path for these solutions to help them outperform in their respective industries. Prior to joining PROS, he was a partner and leader in the Marketing & Sales Practice at McKinsey & Company.

Zawada is a widely published author, with articles that have appeared in many high-profile publications, including Harvard Business Review, Forbes.com, Mergers and Acquisitions, and the McKinsey Quarterly. He has been interviewed by and quoted in Fortune, Canadian Business, Business 2.0 and CNBC.com publications. Zawada co-authored both the first and second editions of “The Price Advantage,” which has been recognized as one of the most pragmatic books available on pricing strategy. As a frequently sought-after presenter, Zawada has spoken at conferences around the world on next-generation sales and pricing improvement strategies.

He earned both an M.B.A. and bachelor’s degree in business administration from the Schulich School of Business at York University in Ontario, Canada.