09/17/2026 updated
100 % available
Senior SAP Technology Consultant (BASIS) / Lead Consultant
Nederweert, Netherlands
Worldwide
SAP Technology certificationAbout me
Expertise in SAP BC since 1998. Leading S/4HANA landscape migrations, cloud migrations, and upgrades as well as general maintenance and support. Focus on stability, performance, security, and customer experience. Advisor to stakeholders, leading technical teams and driving SAP platform strategy.
SAP Analytics CloudSAP ApplicationsSAP HANASAP IS-U
SAP BASIS Architecture & Administration
Expertise in SAP BASIS seit 1998, umfassend Installations, Support Pack Stack Upgrades, Kernel Patching, STMS, Client Strategy, Saplogon, Performance Tuning, SSL configuration and certificate exchange, GRC, HANA Cockpit, Business Content activation, SAP Backbone implementation, Backup/restore strategy, ChaRM, CTS+, Monitoring und ITIL.
S/4HANA & Cloud Migrations
Fuehrung komplexer SAP Landscape Upgrades und S/4HANA, OS/DB und Cloud Migrationen mit SUM und DMO unter Near-Zero-Downtime-Ansaetzen auf Plattformen wie Azure und AWS.
SAP Security & GRC
Implementierung von SAP Security Roles, Durchfuehrung von Audits, GRC-konforme Controls sowie Design und Durchfuehrung von Disaster Recovery Tests, Transport Management und Certificate Exchanges fuer Autorisierungen zwischen SAP und verwandten Systemen inklusive SSO und SSL.
SAP Plattformen
Kenntnisse in S/4HANA, R/3, ECC, BI, PI/XI, CRM, BW/4HANA, Solution Manager, SAP RISE, SAP J2EE, TREX und Afaria.
Integration & APIs
Erfahrung mit Salesforce, CPI, PI/PO, IDocs, RFC, OData, REST/SOAP APIs und ABAP fuer systemuebergreifende Integrationsloesungen.
OS & Datenbanken
Fundierte Kenntnisse in Unix, Linux, Windows sowie Datenbanken wie HANA, Oracle und MSSQL.
High Availability & Disaster Recovery
Planung und Umsetzung von High Availability und Disaster Recovery Konzepten fuer SAP Landschaften zur Sicherstellung der Geschaeftskontinuitaet.
Technische Fuehrung & Mentoring
Leitung technischer Teams, Mentoring von Junior Consultants sowie Koordination von Offshore/Onshore Teams in internationalen Projekten.
Hybrid & Cloud Architekturen
Konzeption und Umsetzung von Hybrid- und Cloud-Architekturen auf Basis von Azure und AWS fuer SAP-Umgebungen.
Performance Tuning & Monitoring
Durchfuehrung von Performance-Analysen, EWA-Analysen, Go-Live-Analysen sowie Datenbankoptimierungen und Implementierung von Monitoring-Loesungen.
Expertise in SAP BASIS seit 1998, umfassend Installations, Support Pack Stack Upgrades, Kernel Patching, STMS, Client Strategy, Saplogon, Performance Tuning, SSL configuration and certificate exchange, GRC, HANA Cockpit, Business Content activation, SAP Backbone implementation, Backup/restore strategy, ChaRM, CTS+, Monitoring und ITIL.
S/4HANA & Cloud Migrations
Fuehrung komplexer SAP Landscape Upgrades und S/4HANA, OS/DB und Cloud Migrationen mit SUM und DMO unter Near-Zero-Downtime-Ansaetzen auf Plattformen wie Azure und AWS.
SAP Security & GRC
Implementierung von SAP Security Roles, Durchfuehrung von Audits, GRC-konforme Controls sowie Design und Durchfuehrung von Disaster Recovery Tests, Transport Management und Certificate Exchanges fuer Autorisierungen zwischen SAP und verwandten Systemen inklusive SSO und SSL.
SAP Plattformen
Kenntnisse in S/4HANA, R/3, ECC, BI, PI/XI, CRM, BW/4HANA, Solution Manager, SAP RISE, SAP J2EE, TREX und Afaria.
Integration & APIs
Erfahrung mit Salesforce, CPI, PI/PO, IDocs, RFC, OData, REST/SOAP APIs und ABAP fuer systemuebergreifende Integrationsloesungen.
OS & Datenbanken
Fundierte Kenntnisse in Unix, Linux, Windows sowie Datenbanken wie HANA, Oracle und MSSQL.
High Availability & Disaster Recovery
Planung und Umsetzung von High Availability und Disaster Recovery Konzepten fuer SAP Landschaften zur Sicherstellung der Geschaeftskontinuitaet.
Technische Fuehrung & Mentoring
Leitung technischer Teams, Mentoring von Junior Consultants sowie Koordination von Offshore/Onshore Teams in internationalen Projekten.
Hybrid & Cloud Architekturen
Konzeption und Umsetzung von Hybrid- und Cloud-Architekturen auf Basis von Azure und AWS fuer SAP-Umgebungen.
Performance Tuning & Monitoring
Durchfuehrung von Performance-Analysen, EWA-Analysen, Go-Live-Analysen sowie Datenbankoptimierungen und Implementierung von Monitoring-Loesungen.
Experience
Professional experience10+ years
Freelancer since2011
Languages
GermanGoodEnglishNative speakerFrenchBasic knowledgeDutchNative speaker
Project history
Daily care of disabled
Expert role in team of 12 Senior SAP technology consultants managing roughly 500 landscapes. Architected and managed multi-system SAP landscape migrations while supporting mission-critical business operations. Leading complex SAP landscape upgrades and S/4HANA, OSDB and cloud migrations using SUM and DMO with near-zero downtime approaches. Design to the final disaster recovery tests, transport management and certificate exchanges for authorization between SAP and related systems including SSO and SSL. Supporting the operational teams of L1 to L3 SAP technology consultants. Advise internal customers regarding SAP technical developments. Performance tuning, transport strategy, and security hardening. Perform EWA and go-live analysis and implement requirements. Mentored junior consultants and coordinated offshore/onshore technical teams. Strategic projects included Project ATRIAS (6-year energy market centralization in Belgium), migrations of Electrabel, Equans and Engie Energie NL to SAP HANA on AWS, SAP security roles implementation and GRC-aligned controls, and implementation of 3rd party backup/fax solutions and SAP Backbone globally.
Managed multi-system SAP landscapes supporting business operations in team of eight Level 3 SAP consultants. Supporting the operational team of 17 L1 to L3 SAP technology consultants in ATOS offshore sites in India. Team responsible for about 300 SAP systems managed by GDF-Suez One-IT, located in French and Belgian datacenters. Internal customers included GDF, Electrabel, Fabricom, Tractebel and Cofely Netherlands. Responsible for SAP enhancement pack and release upgrades, Oracle minor upgrades and datacenter migration projects. Executed SAP EHP and release upgrades in ECC, ISU, CRM, BI and Solman environments. Performance related investigations and database reorganizations. Supporting functional SAP projects in go-live of new functionality and tackle performance issues. Oracle upgrades, Kernel upgrades, support packages stacks for all sort of environments. Mentored junior consultants and offshore/onshore technical teams. Strategic projects included leading SAP managed services migration to ATOS offshore team and starting project ATRIAS.