Meet the Authors

Cezary is a Senior SAP Consultant with over 10 years’ experience working with SAP. Since 2018, Cezary has supported businesses with the transition from SAP ECC to S/4HANA. He has a particular focus on the low cost, high ROI Public Cloud S4HANA releases and improving usability by employing BTP capabilities.

Chanda Verma is SAP Director at Perigee Solutions Inc. She has worked on multiple SAP integration projects with a focus on procure-to-pay process, order-to-cash process, cross-module integrations, data staging for complex cross-module end-to-end processes, high-volume data conversions, optimizing intercompany accounting transactions, and project planning, sourcing, and budgeting. Chanda has worked closely with the external parties, e.g., banks, tax advisors, internal and external auditors. She has worked in multiple roles such as solutions architect, project manager, team lead. She has varied international experience working on projects in North America, Europe, and Asia. enture funding.

Mr. Chang-Hyun Ko, has been studying and researching human behavior for over 20 years. He holds a Master’s degree in Educational Psychology with an emphasis on sport and performance. His primary interests are in the psychological and physiological interworking of performers during high pressure situations. Chang has applied his knowledge and expertise to enhance performance for professional athletes, corporate leaders, and elite military/security organizations. He is a certified Resilience trainer and curriculum developer for the US Army. He has developed an executive resilience and performance program for the US Army that is delivered to all leaders in the Army. Chang was also the first Director of Cognitive Performance for an elite Special Operations unit, there working as part of a holistic team of performance providers bringing a unified training effort to enhance physical and mental performance and recovery.

Currently, Chang serves as the Director of Performance for Team Liquid. He is implementing a holistic model of human performance training for all athletics teams at Team Liquid. We constantly work to make improvements in all aspects of gaming to provide better opportunities for current and future generations. He is also trained in biofeedback, and certified in change management. Chang also serves as a Health and Wellness Commission member at Global Esports Federation where the goal is to promote healthy competition in esports.

Charlie Ifrah co-founded INTURN with the mission to address the largest ongoing problem for brands: inventory. Today, the first-to-market enterprise solutionhelps leading brands worldwide manage and optimize trillions of dollars of unsold inventory across all verticals. Charlie currently serves as the company’s ChiefProduct Evangelist and oversees the product vision and strategy. As an accomplished entrepreneur, Charlie has founded and co-founded several companies andbrought several technology solutions to life that have transformed industries.

Chet Harter is a member of the SAP Signavio Center of Excellence and has been with SAP for 19 years. A former operations and materials professional in the manufacturing industry, he focused on the management of operational business processes and continuous improvement programs. As a member of SAP’s Signavio Center of Excellence, Chet is currently helping customers understand SAP’s solutions for business process management and process automation/improvement.

Chris Hall joined Vertex’s Chief Strategy Office as Senior Tax Officer in September 2024 and is focused on Global Taxes and Compliance. Prior to Vertex, Chris served as Managing Director for Global Indirect Tax Strategy at Ford Motor Company from 2017, and served in multiple leadership roles in North America and Europe since joining Ford in 2001. Between 1988 and 2001, Chris worked for General Electric Company, running GE’s shared services tax organization in his last role there.
Chris has been responsible for all aspects of Indirect Tax including compliance, audits, controversy, planning, legislation and leading systems automation projects for centralized tax determination and reporting processes using Vertex and other platforms.
Chris holds a B.S. in Finance from Florida Tech and an MBA from University of South Florida, is a Certified Member of the Institute or Professionals in Taxation (IPT) and was a Certified Management Accountant and a member in good standing with the Institute of Management Accountants from 1993 to 2013.

Chris is an executive leader with a demonstrated history of working in the HR, information technology and services industry. With over 18 years of experience in functional HR, people initiatives and HR solution consulting, Chris is focused on leading organizations through strategic transformation of people, process and technology. She is passionate about strategy, innovation, go to market offerings and problem solving! As a certified SuccessFactors professional, she is a hands on leader of global professional services and delivery who seeks process improvements and pushes the boundaries to help drive organizational and individual team member growth. Chris received her Bachelors and Masters Degree in Accounting from Bloomsburg University in Pennsylvania and holds an active CPA license in the state of Pennsylvania. She also holds her PHR and SHRM-CP certification in HR.

Hello, I’m Chris E. Ortega, the CEO of Fresh FP&A and we provide Fractional CFO and Advisory Services for businesses that allows them to transform and scale their finance organization. We have a proven track record in scaling finance organizations for Seed to Enterprise domestic and international businesses. Wide ranging leadership in public accounting, corporate accounting, finance, financial planning & analysis (FP&A) and financial leadership. Committed to aligning passions, skills and talents to help others realize and achieve Greatness.

Chris Radkowski, Senior Director, SAP Solution Management. Chris leads the product strategy and go-to-market for SAP Access Governance, Data Protection and Cybersecurity portfolios. Previously Chris has worked as a product manager at several start ups focused on access management, single sign-on, and network access control. Chris is leading the effort at SAP in key digitization and cloud for access governance and security solutions delivering ideas and market transforming vision for each topic. Outside of SAP, Chris is working on windsurf, kite, and surf hydrofoil designs that have been used to win world championships and recently achieved the world nautical mile speed record at La Palme, France.

Chris is a business-oriented technologist, SAP evangelist and a member of SAP’s coveted global mentor program, who founded DalRae Solutions in 2015. Having spent over 20 years in the SAP industry, he is passionate about driving business change through technology, and Chris is a business-oriented technologist, SAP evangelist and a member of SAP’s coveted global mentor program, who founded DalRae Solutions in 2015. Having spent over 20 years in the SAP industry, he is passionate about driving business change through technology, and sees the introduction of SAP Business Technology Platform (BTP) as a game changer in enabling customers to achieve this. Chris has a proven track record in planning, developing and implementing complex solutions for our customers, and is a regular speaker at SAP related conferences globally.

Chris had his first exposure to SAP while working for Mulgowie Farming company in rural Australia. He saw the difference SAP made to the smooth running of the farming operations and quickly got involved with the online community, as support in the remote location was hard to come by.

He then went on to work at Super Retail Group for a number of years, expanding is knowledge and working on a number of projects, such as the first click & collect implementation in Australia.

Following that Chris became the Founder & Chief Architect at DalRae Solutions, and has worked on a number of noteworthy projects such as the New Zealand Police gun buyback scheme and the NDIA Case Management solution.

In recent years his interest has primarily been in the Business Technology Platform (BTP) and he has established himself and his business as a global leading expert in this field

Christian Schroefl is an experienced Solution Architect, Portfolio- Programme- and Project Manager and has led multiple SAP implementations and transformations of various sizes in the last 22 years. He has led teams to continuous growth and has successfully managed portfolios of ICT engagements across both EMEA and APJ markets.

Chris believes in making a difference and supporting his customers on their individual path to successful digital transformations. He holds certificates in PM methodologies (PMI and Prince2) and is passionate about putting technical engagements into the context of Organisational Strategy and Enterprise Architecture alignment. Playing to his strength of ‘getting things done’ is his current setup building and growing Natuvion APJ since 2019.

Chris is currently looking for talent in the areas of Technical Solution Architecture, Utilities Consulting, Data Transformation/Data Science, Integration and Digital Marketing and Business Development.
Natuvion APJ is actively looking for partnership connections in Australia and New Zealand and the wider APJ region!

Chris has been building SAP-based solutions since 1994, firstly with Andersen Consulting and then with Arch after founding the company in 1996. Chris has extensive experience working with clients and partners across a wide range of industries, bringing together his deep functional and technical knowledge of SAP’s business suite and Arch’s solutions.

As vice president for strategy at Sovos, Christiaan Van Der Valk leads research into trends in the market and tax legislation. His insight and expertise are instrumental in determining business strategy and when to buy, build or partner to create solutions that meet emerging trends. Christiaan’s philosophy is that companies should embrace the role of pioneer, rather than shy away from it.

Christiaan is an internationally recognized voice on e-business strategy, law, policy, best practice and commercial issues. He was elected a World Economic Forum Global Leader for Tomorrow in 2000. He also holds long-standing leadership roles at the International Chamber of Commerce (ICC) and the European E-invoicing Service Providers Association (EESPA).

At LeanIX, Christian built up a powerful Customer Success team, starting with 3 people in Bonn in 2017 and growing it to >100 people in Bonn and Boston today. He introduced scalable processes for making customers successful in using the LeanIX SaaS products and ensuring growth contribution by generating constant value of LeanIX to its customers.
With an extensive career in companies such as TellSell Consulting (now KPMG Strategy & Operations), Deutsche Telekom, IBM, Roland Berger Strategy Consultants, he is an expert in Digital Transformation, IT Management, Business Development and Leadership.