Dr Stefan Walz-Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis)
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Experience
Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis)
Federal agency
- 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
Senior Project Manager / Product Owner Platform SAP Authorizations & Security
OTTO
- 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
Senior Project Manager / Product Owner Platform SAP Authorizations & Security
TOOM / REWE
- 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.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, and 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
Statistics
Experience
Expertise
Profile
Frequently asked questions
Have questions? Find more information here.
Dr Stefan is based in Trier, Germany.
Dr Stefan speaks the following languages: German (Advanced), English (Advanced).
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.
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.
Dr Stefan's most recent position is Senior Project Manager – S/4HANA Implementation Authorization & Security (HCM, FI/CO, PSM, LSO, Basis) at Federal agency.
In recent years, Dr Stefan has worked for Federal agency, OTTO, and TOOM / REWE.
Dr Stefan is most experienced in industries like Retail and Government and Administration.
Dr Stefan is most experienced in business areas like Information Technology, Project Management, and Audit.
The availability of Dr Stefan needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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