Meet the SAPinsider Experts

Gain insights and connect with the world’s leading SAPinsider Experts, in the largest and fastest-growing SAP membership group.

Experts

  • Tammy Powlas image

    Tammy Powlas

    Tammy is an Americas’ SAP Users’ Group (ASUG) volunteer and an SAP Mentor, Certified Public Accountant (CPA) and a certified Project Management Professional (PMP), with SAP certifications in BW, FI, CO, SEM. Top contributor to SAP Community from 2011 to 2016. Served on the SAP Mentors advisory board. SAP Community Moderator. ASUG Volunteer Award Winner…

  • Daniel Preiser
    Expert since 2023

    Daniel's responsibility in the SAP Cyber Security area compasses the real-time monitoring of SAP applications using SAP Enterprise Threat Detection, the secure and compliant configuration of SAP systems as well as the constant patch & upgrade management of SAP systems.

  • Aric Quinones
    Expert since 2022

    Aric is a Managing Director at Protiviti who leads the SAP Practice and Technology Consulting Practice in the East. For over 20 years, Aric has been helping clients manage digital transformations with the implementation and maintenance of SAP and the surrounding ecosystem. He is one of Protiviti’s firm-wide experts in S/4, Central Finance, Finance Transformation,…

  • James Roeske
    Expert since 2021

    James Roeske is CEO and Co-Founder of the Customer Advisory Group LLC. James has over 27 years of SAP Security, Audit, GRC, and executive management experience. Over those years, James has had a professional focus on technical configuration of SAP security, segregation of duty design, user provisioning solutions, GRC software solution design, and corporate compliance implementations for companies around the world. Prior to founding the Customer Advisory Group, Mr. Roeske held strategic positions at Virsa Systems, SAP America, and SAP Canada. This has allowed him to lead, plan, and participate in over 280 SAP GRC and security projects for some of the largest and most complex compliance environments across the globe.

  • Mark Rowe

    Mark Rowe joined Radiant in October 2013 as VP of Technology Solutions. In 2021 Rowe was promoted to SVP and CTO for the company. Rowe has oversight of the industry-leading technology platforms used to support the Radiant network and the supply chain management activities of its end customers. Prior to this role, Rowe held lead…

  • Gaurav Singh
    Expert since 2022

    A SAP/Cyber Security Expert with 17 Yrs of Experience with various Industry/domain and multiple SAP Green Field/ Upgrade and other implementation and support Projects. Works/Manage entire Landscape of SAP for current Employer and excelling not just in traditional SAP GRC/Security space , but rather in SAP Vulnerability management, Threat Monitoring, SAP Patch management, Cloud and Cyber Security domains including working on Cyber Tools like SIEM(Splunk), Onapsis etc for SAP and AWS Security as well.

  • Jay Thoden Van Velzen

    Jay Thoden van Velzen is Strategic Advisor to the CSO at SAP and a member of the SAP Global Security Leadership Team, specifically focused on cloud security strategy during ongoing cloud transformation. He was at the forefront of SAP’s cloud security transformation through multiple annual initiatives supported by the Executive Board, helped grow the Multicloud Security organization, and brought teams together across the company to drive effective security improvements and organizational accountability. During this time SAP saw rapid Multicloud migration and growth from 2,500 cloud accounts to 15,000, during the global COVID pandemic and geopolitical changes. Jay is an SAP veteran, joining through the BusinessObjects acquisition, and worked in Consulting, Development and Cloud Security Operations, and is now in his fourth Board Area. Through that experience, he is acutely aware, therefore, of the importance of SAP solutions for the business operations of our customers, and the resulting responsibility SAP carries to secure those workloads in the cloud. 

  • Laz Uriza

    Laz is the Global Sales and Strategy Lead for SAP on Azure; he works with the Global Azure Sales Team focusing on RISE on Azure and SAP on Azure initiatives. He also ensures Partners (SI’s, MSP’s and ISV’s) are engaged to provide services on the Azure Cloud Platform.   Before joining Microsoft, Laz has over…

  • Marie-Luise Wagener-Kirchner
    Expert since 2021

    Marie-Luise Wagener-Kirchner has more than 24 years of SAP experience in auditing, consulting, training, and architecture for various releases and SAP solutions. She worked for seven years in the consulting area as a senior SAP auditor and as a consultant with clients from multiple industries, for five years as the global SAP security and compliance…

  • Sherry Yu

    Sherry Yu has worked over a decade in SAP solutions and is a trusted advisor in solutions building and reference architecture for key SAP products like SAP HANA, S/4HANA, NetWeaver, Data Intelligence, etc. Sherry has been focusing on SAP Solutions on Public Cloud by working closely with leading public cloud providers and is currently working…