The authors of »SAP S/4HANA«

Devraj Bardhan

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Devraj Bardhan is an accomplished global leader for SAP Innovations at IBM. He has led several large transformation projects, driving business growth agenda through innovation and digital efficiencies. He is an established subject matter expert (SME) for SAP S/4HANA, SAP Ariba, and SAP Leonardo, growing IBM's digital transformation capability by designing and implementing global templates. He heads the SAP Garage and is part of the global SAP Center of Competence at IBM. Devraj can be reached via Twitter @devbard or via

Axel Baumgartl

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Axel Baumgartl is part of the Center for Digital Leadership at SAP, where he leads the area of asset and method development. In his current role, he provides thought leadership and best practices for C-level customers based on his more than 19 years of experience with SAP transformation projects. He is the author of several publications about SAP products and developed a method for enterprise architecture blueprinting. You can reach Axel via Twitter @AxelBaumgartl.

Nga-Sze Choi

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Nga-Sze Choi is the SAP S/4HANA Sales and Logistics Expert working for SAP Business Transformation Services. She has more than 14 years of experience in global business transformation programs, leading the design and implementation of SAP solutions in the order-to-cash and procure-to-pay areas. Her main area of expertise is in the life sciences, consumer products, and industrial industries.

Mark Dudgeon

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Mark Dudgeon is the Global SAP CTO of IBM Global Business Services, SAP Service Line. He has more than 21 years of experience in architecture design and delivery for some of IBM’s largest SAP deployments. Mark’s role also includes ensuring that IBM has the right partnerships, capabilities, and offerings to support its customers in their digital transformation journey with SAP. You can reach Mark via Twitter @MarkPDudgeon.

Asidhara Lahiri

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Asidhara Lahiri is an SAP Enterprise Architect in IBM India, working on complex SAP implementations for global clients in industries such as consumer products, oil & gas, airlines, and utility. She has more than 22 years of work experience, out of which 18 are in SAP. She advises client executives on digital roadmaps for their SAP landscape, and is a global subject matter expert (SME) in SAP HANA in IBM. She has also led the SAP HANA competency for IBM India, designing and reviewing client architecture, defining IBM services, and growing IBM's SAP HANA capability. Asidhara has filed two patents and is a member of the IBM Academy of Technology. She is also a coauthor for the book SAP Cloud Platform: Cloud-Native Development (SAP PRESS). Asidhara can be reached via Twitter @AsidharaL and

Bert Meijerink

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Bert Meijerink is the SAP S/4HANA Finance lead at IBM’s SAP Global Center of Competence. He has more than 31 years of working experience in implementing financial systems worldwide, and more than 21 years of experience in designing and implementing SAP global templates.

Andrew Worsley-Tonks

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Andrew Worsley-Tonks is SAP Chief Architect and global SAP S/4HANA transformation lead for IBM Services. He has extensive experience in complex SAP upgrades, modernization, and business transformation projects. In his current role, he delivers multiple SAP S/4HANA projects while also helping existing SAP ERP customers define their SAP S/4HANA adoption strategy and business case. You can reach Andrew via Twitter @A_WorsleyTonks.
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  • Cover of SAP Cloud Platform: Cloud-Native Development

    SAP Cloud Platform: Cloud-Native Development

    Gairik Acharya, Govind Bajaj, Avijit Dhar, Anup Ghosh, Asidhara Lahiri

    489 pages, hardcover

    Learn to build cloud applications from the ground up using SAP Cloud Platform. Explore the Neo and Cloud Foundry development environments; pick your backend language from a selection including Java, Node.js, and ABAP; and create a frontend with SAPUI5 and More about the book

    from $69.99


    E-book | Print edition | Bundle
    • Build and deploy applications on the Cloud Foundry and Neo environments
    • Develop cloud-native applications with Java, Python, ABAP, and more
    • Manage your application’s lifecycle with continuous integration, continuous delivery, security, monitoring, and DevOps