Recommended expert
Dr Stefan Walz-Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis)
Check rate
Experience
Dec 2025 - Dec 2025
1 monthSenior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis)
Federal agency
Position Summary
Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis) at Federal agency
Industries
Government and Administration
Business Areas
Information Technology
Project Management
- Program-wide responsibility for the authorization and security architecture in an S/4HANA implementation in the public sector
- Designed and aligned target architecture for role and organizational concepts in HCM, FI/CO, PSM, LSO, and Basis (PFCG, SU24, SU53, STAUTHTRACE)
- Implemented frontend authorizations in SAP Fiori (Spaces/Pages, tile and catalog concept, /UI2/FLP_CUST)
- Defined SoD rules, emergency user process, and firefighter governance; coordinated with internal audit and IT security officers
- Set up interfaces for IAG/GRC, identity lifecycle, user and group model, and client/client capability concept
- Supported functional tests (SIT, UAT), defect management, and cutover and hypercare planning with quality gates and KPIs
Apr 2024 - Aug 2025
1 year 5 monthsSenior Project Manager / Product Owner Platform SAP Authorizations & Security
OTTO
Position Summary
Senior Project Manager / Product Owner Platform SAP Authorizations & Security at OTTO
Industries
Retail
Business Areas
Information Technology
Project Management
- Product ownership for the central SAP authorization and security platform
- Managed roadmap and backlog (Kanban/Scrum), prioritized delivery of platform features
- Harmonized S/4HANA and Fiori roles; established a role-based authorization framework
- KPI-driven monitoring (e.g., critical authorizations, SoD hits, emergency user usage)
- Managed stakeholders across IT, business units, internal audit, and external auditors
Aug 2022 - Dec 2023
1 year 5 monthsSenior Project Manager / Product Owner Platform SAP Authorizations & Security
TOOM / REWE
Position Summary
Senior Project Manager / Product Owner Platform SAP Authorizations & Security at TOOM / REWE
Industries
Retail
Business Areas
Audit
Information Technology
Project Management
- Built an organization-wide role and governance structure for S/4HANA and connected systems
- Defined end-to-end authorization processes (joiner/mover/leaver)
- Implemented a central role lifecycle (design, build, test, deploy, operate)
- Designed SoD including criticality classes, risk assessment, and compensating controls
- Prepared for audit (ISAE/SOX), created audit-proof documentation
Industry Experience
See where this freelancer has spent most of their professional time.
Experienced in Retail.
Retail
Business Area Experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, and Audit.
Information Technology
Project Management
Audit
Skills
Management Consulting
Sap Audit
It Security
Management
Project Management
Project Coordination
Sap Authorization Concepts And Development (All Modules)
Cloud Foundry
Sap Business Technology Platform (Btp)
Sap Iag
Agile Coaching
Sap Platform Product Owner
Crisis Management
Consulting
Training
Sap R/3
Bc
S/4hana
Fiori
Sap Authorization Concepts
Sap Audit
Sap Btp
Sap Iag
Sap Ilm
Sap Grc
Sap Focused Run
Automotive Industry
Banking
Rail Vehicle Manufacturing
Chemicals
Aerospace
Defense Technology
Apparel Industry
Publishing And Media
Paper Industry
Public Sector
Real Estate
Food Industry
Languages
German
AdvancedEnglish
AdvancedStatistics
Experience
Total positions 3
Experience in Retail 2.5 y
Avg length 11 m
Longest experience 1 y 4 m
Expertise
Recent roles Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis), Senior Project Manager / Product Owner Platform SAP Authorizations & Security
Main industries Retail
Main business areas Information Technology, Project Management, Audit
Profile
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Frequently asked questions
Do you have questions? Here you can find further information.
Where is Dr Stefan based?
Dr Stefan is based in Trier, Germany.
What languages does Dr Stefan speak?
Dr Stefan speaks the following languages: German (Advanced), English (Advanced).
How many years of experience does Dr Stefan have?
Dr Stefan has at least 3 years of experience. During this time, Dr Stefan has worked in at least 2 different roles and for 3 different companies. The average length of individual experience is 1 year and 11 months. Note that Dr Stefan may not have shared all experience and actually has more experience.
What roles would Dr Stefan be best suited for?
Based on recent experience, Dr Stefan would be well-suited for roles such as: Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis), Senior Project Manager / Product Owner Platform SAP Authorizations & Security.
What is Dr Stefan's latest experience?
Dr Stefan's most recent position is Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis) at Federal agency.
What companies has Dr Stefan worked for in recent years?
In recent years, Dr Stefan has worked for Federal agency, OTTO, and TOOM / REWE.
Which industries is Dr Stefan most experienced in?
Dr Stefan is most experienced in industries like Retail and Government and Administration.
Which business areas is Dr Stefan most experienced in?
Dr Stefan is most experienced in business areas like Information Technology, Project Management, and Audit.
What is the availability of Dr Stefan?
Dr Stefan will be available from May 2026.
What is the rate of Dr Stefan?
Dr Stefan's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.
How to hire Dr Stefan?
To hire Dr Stefan, click the Meet button on the profile to request a meeting and discuss your project needs.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
1000
750
500
250
Market avg: 696-856 €
Market avg: 696-856 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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