Michael Rubel

by Anita-Dora Andreadis | 4. February 2026

Michael Rubel

Senior SAP S/4HANA Transformation & Program Manager

Senior SAP S/4HANA Transformation, Project Manager and Activist PMO Lead with 18+ years of experience across the full SAP lifecycle, ranging from application consulting and project management to strategic leadership of large-scale S/4HANA transformations.
Strong expertise in SAP S/4HANA rollouts, data migrations, carve-outs, and post-merger integrations (PMI), delivering complex programs in energy, industrial goods, automotive, and manufacturing environments.
Proven experience acting as the link between business and IT, translating complex technical topics into strategic decisions and actionable delivery plans for executive- and C-level- stakeholders.
Extensive background in PMO and Activist PMO roles, including rollout planning, roadmap alignment, work package structuring, progress tracking, vendor steering, and Steering Committee reporting.
Former Principal at BCG Platinion and currently independent management consultant, combining top-tier consulting experience with hands-on delivery and interim leadership in SAP programs.

Last 3 projects

Since 2024	Energy	Project Manager S/4HANA Rollout – Project Manager of the entire SAP S/4HANA Commercial Core project in a DAX-30 enterprise for the rollout to the largest sub-group. Steering of project team for Finance, Controlling, Procurement and Logistics along all project phases with overall team size of ~300 resources. Part of program leadership team and reporting to SVP- and C-Level stakeholders.
2022 – 2024	Energy	Activist PMO Lead – Leader of the Activist PMO for several rollout entities; planned and structured S/4HANA rollouts from Fit-to-Standard through testing and go-live; coordinated test migrations, process testing, and executive reporting to CEO, CFO, and SVPs.
2021 – 2022	Energy	Subproject Lead Migration Factory – Subproject Lead for the Data Migration Factory in the S/4HANA program of a DAX-30 company; designed and implemented an industrialized migration approach; coordinated client, SNP, and local rollout teams; tracked migration progress, defects, and go-live readiness as well as go-live cut-over.

Tools

Competencies

IT Project Management & Project Management Office
SAP S/4HANA Transformations & Rollout Management
Business–IT Alignment & Executive Communication
SAP Data Migration, Carve-outs & PMI

Languages

German
English
Dutch
Spanish

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Thomas Bentrup

by Anita-Dora Andreadis | 21. January 2026

Thomas Bentrup

Senior Migration & Cut-Over Expert

Senior SAP ERP and S/4HANA Project & Program Manager with long-standing experience in international SAP implementations, roll-outs, carve-outs, and template programs across multiple industries.
Extensive hands-on experience working as Cutover Manager and Migration Manager, leading cutover strategy, planning, coordination, and execution for complex SAP S/4HANA implementations, roll-outs, and carve-out programs.
Proven project experience within the Deutsche Telekom environment, delivering SAP-related projects and IT initiatives for T-Systems International / Telekom IT, including carve-outs, system upgrades, service management, and process optimization.
Strong background in end-to-end project lifecycle management, including scope definition, planning, execution, testing, cutover, go-live, and stabilization phases.
Certified PMP® and Scrum professional, experienced in Agile and Waterfall environments, recognized for structured delivery, stakeholder coordination, and quality-focused execution.

Last 3 projects

Since 2024	Manufacturing	Data Migration Manager – Leading and coordinating end-to-end data migration activities for an SAP S/4HANA implementation; managing internal and external migration experts; overseeing strategy, execution, and go-live readines.
2024	Manufacturing	Project Manager – Managed master data project for mapping and technical realization of customer, supplier, and material master data fields; coordinated cross-country teams in Germany and China.
2022 – 2023	Automotive	Cutover Manager – Led and coordinated all cutover activities for an SAP S/4HANA implementation; aligned cutover strategy with migration and project management; coordinated internal and external module, process, and migration experts through go-live.

Tools

Competencies

SAP ERP & SAP S/4HANA Project Management
Cutover and Migration Management
International SAP Roll-outs and Carve-outs
SAP Template Design, Governance & Application Support

Languages

German
English

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Csaba Hajos

by Anita-Dora Andreadis | 13. January 2026

Csaba Hajós

Senior SAP S/4HANA Project Manager / Cutover & Migration Lead

Senior SAP Project Manager and Business Analyst with extensive experience in SAP R/3 and SAP S/4HANA implementations, carve-outs, separations, mergers, and group template rollouts across telecom, manufacturing, utilities, pharma, and financial services.
Strong expertise in cutover and data migration management, including strategy definition, data cleansing, migration planning, governance setup, and execution in large-scale SAP programs.
Proven track record managing end-to-end project lifecycles, covering scope definition, planning, delivery, UAT, cutover, hypercare, change control, and post-go-live support.
Deep knowledge of SAP core modules (FI, CO, SD, MM, MDG) combined with solid process management experience (BPMN, ARIS, process mining with Celonis).
Certified PMP and PRINCE2 Practitioner, experienced in Agile and Waterfall environments, known for structured delivery, stakeholder communication, cost tracking, and quality-focused execution.

Last 3 projects

Since 2025	Manufacturing / FMCG	Business Project Lead – Led local fit-gap analysis for group SAP template; set up project organization and governance; managed business case completion and planned business-side data migration activities.
2024 – 2025	Telco	Cutover & Migration Stream Lead – Planned and managed cutover and migration for merging 8 legal entities into one SAP S/4HANA system; defined migration strategy, governance, and coordinated delivery team of 10 consultants.
2024 – 2025	Telco	Project Manager & Cutover/Migration Lead – Managed SAP S/4HANA separation of infrastructure and trading companies; led data migration, cleansing, cutover planning, governance, cost tracking, and delivery with 80+ consultants.

Tools

Competencies

SAP S/4HANA Project Management
Cutover, Data Migration & Carve-out Programs
Business Analysis & End-to-End Process Design
SAP Core Modules (FI, CO, SD, MM, MDG)

Languages

Hungarian
English
German
Spanish

Download Complete CV

Michael Rubel

Michael Rubel

Last 3 projects

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Competencies

Languages

Thomas Bentrup

Thomas Bentrup

Last 3 projects

Tools

Competencies

Languages

Csaba Hajos

Csaba Hajós

Last 3 projects

Tools

Competencies

Languages

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