When a Digital Real Estate issue reaches your desk, speak to a senior expert in less than a week. ◆ Choose the problem. Choose the slot. Put it on the table. ◆ More details under “Products”. When a Digital Real Estate issue reaches your desk, speak to a senior expert in less than a week. ◆ Choose the problem. Choose the slot. Put it on the table. ◆ More details under “Products”.
Senior digital real estate expertise

30+ projects
in 6+ countries

project languages ENG/GER

10+ years experience
Senior digital real estate expertise
Project History (recent years)
Q3/24-today | SAP RE-FX & FICO Consultant – S/4HANA | Public Real Estate Holder (Top 10 European Public Portfolio), GER
- Configuration and support for SAP RE-FX processes (change requests & incident resolution)
- Setup of condition types, incl. account determination, frequency settings, posting clauses, and tax codes
- Customizing of real estate contract types for leasing and subletting, incl. deposit handling
- Configuration of business partner roles using BDT and CVI integration logic
- Implementation of automated rent adjustments based on indexation (VPI)
- Integration and interface alignment with external DMS (nscale)
- Functional checks and preparatory steps for ILM, condition maintenance, and number assignment
- Defined and optimized business object structures and information models within Real Estate
- environments.
- Supported structured management of lease-related and property-related information.
- Ensured consistency and quality of Real Estate master data and associated business documentation.
Q3/26-Q326| SAP RE-FX Migration Architect / Planon IWMS Integration | Retailer (Top 20 European Companies), Denmark
- Analysis of legacy RE-FX landscape across 25 company codes in 7 countries
- Target architecture design: consolidation of contract types and condition
- framework, country-specific differentiation via account determination, tax codes and currency
- Migration strategy and method evaluation (Migration Cockpit, BAPI, LSMW)
- Prototype building in greenfield S/4HANA system
- Planon IWMS integration architecture and system-of-record assessment
- Defined and optimized business object structures and information models within Real Estate
- environments.
- Supported structured management of lease-related and property-related information.
- Ensured consistency and quality of Real Estate master data and associated business documentation.
Q1/26-Q226 | IFRS16 (RE-FX) in S/4 HANA- Stabilization & Triage |Top Global musical instrument group, Japan, EMEA Branch
- Stabilized IFRS16 / SAP RE-FX year-end delivery (up to 30 Mar) and made the team operational.
- Set up a single-source Issue Log with triage, priorities, owners, and next steps.
- Clustered variances (e.g., country clearing + contract cluster) instead of treating isolated cases.
- Identified root pattern: variances driven by valuation postings failing due to concrete error
- messages/validations.
- Gathered and consolidated business requirements from relevant stakeholders.
- Supported quality assurance and validation of lease-related business documents.
- Conducted consistency checks between contractual documentation and system data.
- Supported data quality initiatives for lease-related information.
- Analyzed Business Workflow functions and made recommendations for flawless execution.
- Documented error patterns, checks and fix/workaround proposals, and ran working sessions with key
- users; handover-ready notes.
- Defined and optimized business object structures and information models within Real Estate
- environments.
- Supported structured management of lease-related and property-related information.
Q1/25-Q1/26 | RE-FX, FI-AA Consultant, IFRS16 in S/4 HANA | Top 20 Worldwide Family-Owned Companies (Trade of Goods), GER
- Technical support and structuring of requirements for IFRS 16 in the SAP RE-FX environment
- Definition & documentation of field logic (including cost centre control) in the context of leasing
- contracts
- Supported quality assurance and validation of lease-related business documents.
- Supported data quality initiatives for lease-related information.
- Creation of technical implementation sketches for developers, including interface and data logic
- Creation of weekly reports for tracking and strategic safeguarding of project progress
- Defined and optimized business object structures and information models within Real Estate
- environments.
- Gathered and consolidated business requirements from relevant stakeholders.
- Supported structured management of lease-related and property-related information.
- Ensured consistency and quality of Real Estate master data and associated business documentation.
Q2/24-Q3/25 | SAP RE-FX Consultant for RE-FX ILM elements & Archiving | Federal Agency for Real Estate, Berlin, GER
- Coordination of functional and technical requirements for SAP ILM object handling
- Preparation and facilitation of workshops for data lifecycle and deletion logic
- Configuration and monitoring of ILM rule sets and deletion jobs
- Execution of mass activities (LÖVM setting) for data readiness and archiving compliance
- Documentation of project steps, process flows, and operational guidelines
- Testing and validation of system behavior after deletion processes (incl. regression tests)
- Defined and optimized business object structures and information models within Real Estateenvironments.
- Supported structured management of lease-related and property-related information.
Q1/25-Q3/25 | SAP RE-FX Consultant – PROMOS-Extension | Top 10 German Housing Companies, Berlin, GER
- Analysis and reversal of complex Z adjustments in SAP RE-FX in preparation for clean core architecture
- Preparation of a technical feasibility assessment for standardization of existing RE-FX field structures
- Documentation of strategic decision options (on-premises vs. public cloud →position paper)
- Support in assessing S/4HANA compatibility in the context of SAP structures for the real estateindustry
- Communication with management for recommendations for action and transformation scenarios
- Defined and optimized business object structures and information models within Real Estateenvironments.
- Supported structured management of lease-related and property-related information.
Q1/24-Q3-24 | SAP RE-FX Consultant in S/4 HANA Greenfield | Intern. Operating Energy Provider, AUT
- Customizing of SAP RE-FX incl. IFRS 16, condition types, posting logic, and valuation rules
- Migration and mapping of legacy master data (contracts, number ranges, usage types)
- BDT adjustments and enhancement of customer includes with field validation logic
- Supported quality assurance and validation of lease-related business documents.
- Conducted consistency checks between contractual documentation and system data.
- Supported data quality initiatives for lease-related information.
- Testing and analysis of customer-specific ABAP programs (SE80), incl. valuation simulation
- Cross-functional coordination with FI, MM, and AA for integrated RE-FX implementation
Q3/23-Q2/24 | Transforamtion Consultant – Software Evaluation | Top 20 European Public Real Estate Holders, GER
- Requirements gathering for a new property and asset management system, covering functionalscope, GDPR compliance, data security, and integration needs.
- Conducted a complete software evaluation and selection process for a Property Management System.
- Gathered and consolidated business requirements from relevant stakeholders.
- Defined evaluation criteria and assessed shortlisted solution providers.
- Market analysis of ~25 “Liegenschaftsinformationssysteme”; shortlisting solutions (i.e. LUM, Kolibri)
- Development of a weighted requirements catalogue and alignment with Pit FM system capabilities.
- Vendor engagement, proposal evaluation, and final recommendation of two optimal solutions.
- Collaboration in a workshop of SAP LUM with SAP officials
Q3/23-Q4/23 | Consultant – SAP RE-FX & ILM, Project Mgmt | Cantonal Informatics Office, Switzerland
- Sub-project management for ILM initiative, including archiving concept, compliance with new Swiss data protection laws, and project planning.
- Advisory on strategic BIM adoption (cost/benefit) and CAFM system evaluation (Planon, Speedikon,other vendors) for the cantonal building authority.
- Functional support and enhancements in SAP RE-FX; handling change requests incl. Swiss VATadjustment (2023), testing, transport to production, and deployment monitoring.
- Workshops with business units and IT on archiving, ArchiveLink, and integration with Immopac, GIS,and BIM/Planon systems.
- Contributed to information classification and document governance concepts.
- Occasional ticket handling in SAP MM, FI/CO, and PM modules to support cross-functional operations.
- Defined and optimized business object structures and information models within Real Estateenvironments.
- Supported structured management of lease-related and property-related information.
Q2/23-Q3/23 | SAP RE-FX Consultant – IFRS 16 Implementation | World Top 10 Medical Supply Company, Germany
- Interim support for RE-FX, FI-AA and IFRS 16 in ongoing in-house projects.
- Scope: Integration of company vehicle leasing contracts into the existing IFRS 16 system, includingsetup of new number ranges, conditions, and valuation rules.
- Contribution to the S/4HANA Bluefield conversion, with focus on RE-FX and FI-AA.
- Execution of testing, configuration reviews, and error analyses.
- Supported data quality initiatives for lease-related information.
- Provided 2nd & 3rd level support during the hypercare phase.
- Outcome: Project successfully stabilized and continued by the internal team after handover.
- Supported structured management of lease-related and property-related information.
- Ensured consistency and quality of Real Estate master data and associated business documentation.
Q3/22-Q4/22 | SAP RE-FX – Technical Consultant & Project Manager | Top 10 worldwide telecomm. provider, Germany
- Technical responsibility and sub-project management for the design and roll-out of an XML-based SAP
- RE-FX interface in the context of IFRS 16.
- Advised on a DMS migration initiative with increased requirements regarding data security,compliance and information governance.
- Supported solution architecture activities in the context of document management transformation.
- Considered regulatory, security and data protection requirements throughout the migration approach.
- Scope: Development of a system-to-system interface for the transfer of IFRS 16 contract databetween two SAP systems via XML.
- Supported quality assurance and validation of lease-related business documents.
- Defined XML structure and mapping of RE-FX contract objects (incl. conditions, terms, partner data,attached documents).
- Coordinated international development teams and managed roll-out across multiple entities.
- Outcome: Interface successfully implemented, ensuring consistent IFRS 16 compliance andstreamlined cross-system data integration.
Q2/22-Q3/22 | RE-FX Service Charge Settlement Project | No. 1 European Shopping Centre Owner, France
- Led the reorganization of service charge accounting processes within SAP RE-FX, including fullresponsibility for requirements gathering, solution design, stakeholder coordination, and systemconfiguration.
- Conducted detailed requirements analysis and designed a modular billing model, includingarchitectural elements (AE), cost distribution logic, and multi-company code setup.
- Developed and maintained a comprehensive project plan (Gantt), managed implementationmilestones, and facilitated regular stakeholder reviews.
- Oversaw customizing activities: configuration of settlement units, cost collectors, and theirassignment to G/L accounts.
- Provided test support and ensured alignment with business and compliance requirements.
- Acted as the central point of contact between stakeholder and project board.
Q1/22-Q3/22 | ILM-Consultant for RE-FX (GDPR-Compliance) | Top 50 Real Estate Service Providers, Germany
- Led project management for the introduction of SAP ILM within the RE-FX moduleto ensure GDPR compliance.
- Conducted analysis of RE-FX–specific data objects (business partners, contracts & cash flows, NKA,documents).
- Developed deletion and retention concepts aligned with legal and compliance requirements.
- Customized ILM rules (LCM) and implemented on NetWeaver/SAP ILM architecture.
- Provided test support and ensured integration of settlement units, cost collectors, and G/L accountassignments.
Q1/21-Q3/21 | Project Manager – Market Study on Location Analysis Systems, University of Applied Sciences, Germany
- Led the operational coordination of a scientific market study comparing location analysissystems used in German real estate development.
- Managed student teams in six sub-projects; responsible for milestone tracking, quality assurance and stakeholder communication.
- Supervised the evaluation of leading German platforms (e.g. 21RE, on-geo, Immobilienscout24)regarding usability, data quality, and decision support functions.
- Consolidated test results from over 12 systems using a structured scoring model and stakeholderfeedback loop.
- Validated findings through expert interviews and group discussions; contributed to final report andpublic presentation.
Q1/20-Q4/20 | Mass Processing of Rental Contracts | Top 1 European Shopping Center Operators, Germany
- Executed mass updates of over 300 rental contracts in SAP RE-FX, including termextensions, cost allocations, partner changes, and contract-specific attributes.
- Reviewed scanned documents, lease clauses, and annexes for legal and commercial accuracy prior toimplementation.
- Performed manual entry and consistency checks of complex business partner structures, deposits, andindexation rules.
- Ensured legal compliance (tenancy law) and business logic correctness through close coordinationwith legal and controlling departments.
- Developed semi-automated Excel tools for contract tracking and validation of change status.
Q3/20-Q1/21 | Project Manager – Market Study on Project Development Tools | University of Applied Sciences, Germany
- Project lead for a paid research mandate by Reasult B.V. on the use of projectdevelopment tools in DACH-region real estate companies.
- Planned and steered all project phases (classic waterfall), including requirement gathering,stakeholder interviews, and survey design.
- Coordinated a team of students and oversaw the implementation of an online survey answered byover 800 project developers.
- Directed the analysis of Excel usage patterns and evaluated feature gaps in competing commercial solutions.
- Focused on client satisfaction and tailored the reporting format to Reasult’s business objectives and product roadmap needs.
Q3/19-Q2/20 | RE-FX Consultant – Technical Real Estate Structuring | Top 5 Technical Inspection Service Provider,GER
- Conducted on-site surveys of building inventory to assess data quality and completeness of floor spacerecords.
- Evaluated tenancy structures with a focus on tax implications, including Gewerbesteuerinfizierung andcomplex space allocation (e.g. mixed-use pooling).
- Developed a digital mapping concept for building areas, room hierarchies, and space usage categoriesin RE-FX.
- Designed integration logic between space structures and SAP modules (RE-FX/PM) to enable rentsettlement, maintenance processes, and lifecycle planning.
- Documented the technical-functional foundation for a later SAP-based CAFM or FM integration.
- Ensured compliance with tenancy law, tax logic, and internal space management policies.
Q3/18-Q3/19 | Application Trainer SAP RE-FX & SAP LUM | Top 3 Biggerst Municipality, Germany
- Designed and delivered 1–3 day SAP training sessions for city administration staff with focus on LUM and RE-FX.
- Created a comprehensive training concept and curriculum, including didactic preparation of key RE-FX/LUM functions (table access, report handling, RE80 cockpit, land parcel structures, creation of parcels, assignment of land registers).
- Developed training materials and user handbooks to ensure sustainable knowledge transfer.
- Supported the integration of floor plans via Korasoft into RE-FX.
- Contributed to the conceptualisation of lease contracts and supported the implementation of the applicant management process.
- Resolved issues related to contract data and system inconsistencies during rollout.
Senior digital real estate expertise
Certified Excellence
Issued certificates
6 Original-Certificates Click on a Tile to view certificate (birthdate blacked)
ITIL v4
PeopleCert / AXELOS · 2022
Requirement Engineer
IREB · 2020
Scrum Master
Scrum.org · 2021
PRINCE2 Practitioner
PeopleCert / AXELOS · 2022
SAP ABAP Developer
SAP SE · 2020
SAP S/4 HANA
SAP SE · 2022
Senior digital real estate expertise
Technical and Functional Stack
SAP RE-FX / Contract & Lease Management (CLM)
| Topic (number of projects) | 2nd Level | Customizing | Concepts |
|---|---|---|---|
| Master data architecture (objects, hierarchy, views) | 1 | 7 | 6 |
| Business partners & roles (BP, CVI, BDT) | 4 | 8 | 4 |
| Contract model & term logic | 7 | 5 | 9 |
| Notice, renewal, resubmission rules | 2 | 5 | 6 |
| Conditions & condition groups | 6 | 8 | 5 |
| Account determination (flow types, account symbols, values) | 6 | 4 | 6 |
| Periodic posting & cash flow | 6 | 6 | 9 |
| Service charge settlement (SCS) | 4 | 5 | 7 |
| Input tax distribution & adjustments | 7 | 10 | 5 |
| FI / CO integration & reconciliation | 6 | 8 | 4 |
| Authorizations & transports | 2 | 2 | 0 |
Strategic Consulting and Software Evaluation
| Topic | Strategic Consulting | Software evaluation |
|---|---|---|
| ERP Systems (Standalone) | 8 | 4 |
| CAFM/IWMS | 3 | 2 |
| Document Management System / Content Management System | 4 | 5 |
IFRS 16
| Topic | 2nd Level | Customizing | Concept |
|---|---|---|---|
| Valuation rules and valuation types | 3 | 6 | 3 |
| Condition valuation groups & posting setup | 3 | 3 | 3 |
| RoU asset & lease liability (FI-AA integration) | 3 | 3 | 2 |
| Run, post & debug valuation (RECEPR, RECEEP, AA594/AA660) | 3 | – | – |
| Transition logic (full / modified retrospective) | 3 | 4 | 3 |
| Contract modification & reassessment | 4 | 4 | 4 |
SAP ILM & Data Privacy (RE-FX / FI focus)
| Topic | 2nd level | Customizing | Concept |
|---|---|---|---|
| ILM core framework, storage & destruction execution | 1 | 4 | 8 |
| Archiving objects RE-FX: contracts, conditions, real estate postings | 1 | 3 | 8 |
| Archiving objects FI & business partner master data | 2 | 2 | 7 |
| Data privacy: blocking, EoP/EoB checks & GDPR data subject rights | 2 | 5 | 6 |
| Legal Hold, retention basis & RE Classic → S/4HANA migration | 0 | 0 | 4 |
S/4HANA, Migration & Fiori
| Topic | 2nd Level | Customizing | Concept |
|---|---|---|---|
| Migration strategy ECC → S/4HANA (Brownfield / Greenfield) | – | – | 13 |
| S/4HANA Migration Cockpit (Direct Transfer) for RE-FX | 1 | – | 2 |
| Legacy & non-SAP data migration (LTMC, LSMW) | 2 | 5 | 3 |
| Customer-Vendor Integration (CVI) | 2 | 2 | 7 |
| Data quality & legacy cleanup (Classic RE residuals, orphan objects, client copy inconsistencies) | 8 | 2 | 0 |
| Fiori apps & UI5 extensions for RE-FX | 2 | 2 | 5 |
Cross-Cutting Themes (Tech Stack, BDT, Workflow, Other)
| Topic | Projects |
|---|---|
| BAdI implementations (BADI_RECN, BADI_RECD, BUS1505, BUS1506) | 6 |
| BAPI implementations (contracts, conditions, objects) | 8 |
| BDT (Business Data Toolset) — fields, screens, DB connection | 9 |
| Z tables and Z programs | 14 |
| Third-party interfaces (CAFM, DMS) | 10 |
| SAP Business Workflow / BRF+ for contract approvals | 2 |
| ALM tooling (Solution Manager, Cloud ALM, Jira, ServiceNow) | 8 |
Senior digital real estate expertise
Our Fields of engagement
explore our perspective on the terms “Digital Real Estate” and where our core area lies.
Senior digital real estate expertise
External links (Consultant/Founder):
Opportunities to follow:
Senior digital real estate expertise


