08/10/2026 updated

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Senior IT Project Manager and SAP Cut-over Lead

Encarnación, Paraguay
Worldwide
PhD Nuclear Physics (Kingston University, UK), Dipl.-Phys. (University Bremen)
Encarnación, Paraguay
Worldwide
PhD Nuclear Physics (Kingston University, UK), Dipl.-Phys. (University Bremen)

Profile attachments

CV Guido Nageldinger SP.pdf
CV Guido Nageldinger DE.pdf
CV Guido Nageldinger EN.pdf

About me

? SAP Program Manager & Release Manager | Senior Cutover Expert | ? Delivering Predictable S/4HANA Go‑Lives | ? Author of “SAP Cutover Management” | ? Remote Worldwide | Founder @ GESWO

SAP S/4HANAInformation Technology ConsultingInformation Technology Infrastructure Libraries (ITIL)IT Service ManagementSAP ERPPMI CertifiedScrum MethodologyProject Risk ManagementSAP ProjektmanagementIT ArchitectureTogafIT Operations ManagementIT Project Management
Professional Summary
Senior IT Project Manager and SAP Cut-over Lead with over 25 years of cross-industry experience managing complex implementations, migrations, and integration projects in Europe and LATAM. Known for delivering mission-critical rollouts under pressure, coordinating distributed stakeholders, and navigating hybrid technical/business environments.
Proven record of remote project leadership, Cut-over orchestration across S/4HANA landscapes, and strong vendor/partner alignment. Passionate about optimizing digital business processes and cross-border team collaboration.

CompetenciesProject & Program Management (PRINCE2®, PMP®)
  • IT Service & Strategy Consulting (ITIL® Expert, COBIT® 5)
  • Enterprise Architecture (TOGAF® 9 Levels 1 & 2)
  • SAP S/4HANA Technologies & Activate®
  • Cut-over Planning & Execution
  • Agile & SCRUM Methodologies
  • Organizational Change & Conflict Management Offshore & Remote Team Leadership & Coaching
Copies of certificates and transcripts are available upon request
Project History on the Resume

Experience

Professional experience10+ years
Freelancer since2025

Languages

GermanNative speakerEnglishFluentSpanishGood

Project history

Senior IT Project Manager & Cutover Lead │ Founder, GESWO

Internet & IT

< 10 team member

geswo.com

Program Manager Cognizant – Hamburg, Germany (mainly remote work)

Cognizant

Internet & IT

>10.000 team member

Core Responsibilities
  • Management of complex international projects and programs in the area of SAP S/4HANA (brownfield and greenfield) as well as ServiceNow® over the whole project cycles (Discover, Prepare, Explore, Realize, Deploy, and Run) in EU and Saudi Arabia
  • Developed and rolled out Cognizant’s SAP Activate® interpretation & FocusedBuild® methodology in the area of test management and rollout management
  • Management of multi-vendor/​offshore teams (India), driving 15% cost reduction via process & resource optimization
  • management of complex system integration tests with test strategy and tool implementation
  • business development and presales (initial assessments, pre-projects)
Selected Projects
  • Refresco (Retail Industry) – UK (mainly remote work) | 12/2024 – 05/2025
Successful management of the realization phase for a GREENFIELD implementation with multi-vendor offshore teams
  • SEFE (Energy Industry) – Germany (mainly remote work) | 06/2024 – 11/2024
Successful Management of a ServiceNow® implementation project
  • Refresco (Retail Industry) - Rotterdam, Netherlands (mainly remote work) | 08/2022 – 05/2024
Overall delivery responsibility with successful rollout on behave of Cognizant Technology Solutions (CTS) for the Aspire BROWNFIELD Conversion program which covered a business and technical transformation with focus on business process harmonization, process improvement initiatives and standardization of master data objects supported by a new digital framework with one core S/4HANA.
Refresco is the world's largest independent bottler of beverages for leading retailers and A-brands with production in Europe, North America and Mexico. Refresco has 6 Business Units including Europe Holding, Benelux, Poland, Germany, Spain and France configured in one single ERP instance 3 different clients.
  • Public Sector - Jeddah, Saudi Arabia (remote work) | 01/2021 – 07/2022
Successful introduction, implementation and rollout of SAP Focused Build® as a test management solution for a SAP BROWNFIELD conversion project. Activities include negotiations related to the SOW, stakeholder management, creation of the test strategy, implementation and execution of training courses and workshops, planning, implementation and management of the integration test, definition and recording of KPIs.
  • Merck (Chemical & Pharmaceutical Industry) - Mannheim, Germany (on site) | 01/2020 – 06/2020
Implementation of a cut-over methodology for the joint commissioning of four larger SAP projects

Project Manager ad-interim T.CON GmbH & Co. KG – Hamburg, Germany

T.CON GmbH & Co. KG

Internet & IT

250-500 team member

  • Orchestrated the turnaround of a derailed SAP implementation for a mechanical-engineering client by redefining the scope baseline, revising cost forecasts, and rebuilding the MS Project® schedule with earned-value tracking.
  • Rebalanced cross-functional team workloads and standardized delivery tracking, restoring on-track progress within months.
  • Transformed JIRA from a generic ticket system into a defect-centric integration-test management tool, boosting error traceability and resolution efficiency.

IT Project Manager OTTO GmbH & Co. KG (Retail Industry) - Hamburg, Germany

OTTO GmbH & Co. KG.

Goods & Retail

5000-10.000 team member

Core Responsibilities
  • Cut-over Management: Built and executed a reusable cut-over framework across multiple SAP/non-SAP releases—from go-live strategy and dependency workshops to KPI-driven test cycles and hyper- care, culminating in a peer-reviewed methodology publication. Nageldinger G. (2015): A framework for cut-over management. PeerJ Computer Science: e29 https://doi.org/10.7717/peerj-cs.29
  • IT Service Transition & Improvement: Led end-to-end transition planning, change and release management, service validation/testing, and continuous improvement (PDCA) for critical IT services.
  • Project Portfolio Oversight: Oversaw diverse internal initiatives, aligning cross-functional teams and ensuring on-time, on-budget delivery.
Selected Projects
  • Category Management Automation (Jan 2017–Jun 2018) – Conducted supplier evaluations, developed POC and ROI business cases, unlocking €7 M+ in cost savings.
  • Logistics KPI Framework (Oct 2017–Dec 2017) – Designed and deployed automated KPI dashboards for a logistics system, cutting downtime by 20 % via real-time alerts.
  • Product Data Model Optimization (Mar 2017–Sep 2017) – Architected a streamlined data model for product requirements, improving data consistency and cross-team collaboration.

Consultant/Senior Consultant for SAP AG and SAP SI

SAP SI/SAP AG

Internet & IT

>10.000 team member

Previous roles as Consultant/Senior Consultant for SAP AG | 06/2005 – 06/2009 | and SAP SI | 01/1999 – 06/2005 | for clients such as SAB Miller Beverage Industry in Colombia, ExxonMobile in USA, NIS in Serbia, TNK-BP in Russia, Pemex Gas in Mexico and Orbian in UK.

Certificates

Project Management Professional (PMP)®

Project Management Institute

2025

SAP Certified Associate - SAP Activate Project Manager

SAP

2020

COBIT® 5

APMG International

2016

TOGAF® 9

The Open Group

2015

PRINCE2® Foundation Certificate in Project Management

EXIN

2015

PRINCE2® Practitioner Certificate in Project Management

EXIN

2015

ITIL® Continual Service Improvement Certificate

EXIN

2015

ITIL® Service Operation Certificate

EXIN

2015

ITIL® Service Strategy Certificate

EXIN

2015

ITIL® Managing Across the Lifecycle Certificate

EXIN

2015

ITIL® Expert Certificate in IT Service Management

EXIN

2015

ITIL® Service Design Certificate ITIL® Service Design Certificate

APMG International

2014

ITIL® Service Transition Certificate

APMG International

2014

ITIL® Foundation Certificate in IT Service Management

EXIN

2013

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