Certified Senior SAP FI/CO Consultant | S/4HANA | ERP ECC | Ex-Microsoft | Global ERP Rollouts | Tax

Integration of new subsidiaries into the global SAP landscape, execution of currency redenominations, support of large-scale business transformations, tax compliance projects, implementation of new business models, regional carve-outs, localizations, reworks, complex system and data migrations across diverse geographies and regulatory environments

Role: SAP ERP Platform Manager – Lead & Contributor
Led and actively contributed to end-to-end SAP ERP deployment initiatives, including associated Line of Business (LoB) tools. Successfully executed all phases of the deployment lifecycle with a hands-on leadership approach - from requirements gathering and solution design to post-go-live stabilization and knowledge transfer

Technologies/Environments:
SAP Modules FI, CO, MM, PS, SD, and various Line of Business (LoB) tools
SAP Versions: S/4HANA, ERP ECC, R/3

Selected Projects Under My Leadership (Managed & Led End-to-End)
Covered Project Leadership, Solution Ownership, Stakeholder Management, Team Coordination, Risk & Issue Management, Hands-On Delivery

2023-2018:

• R&D Africa - Engineering for Africa entities Kenya/Nigeria (Business Transformation)
• Inside Sales Center Costa Rica: ERP systems and Subledger migration (open PO conversion, open AP items, Asset conversion and reconciliation) extending 600+ employees to the new company codes
• LRD Brazil Conversion Project (Transformation: distribution and sale of products) – Systems & Data Conversion / P2P Stream owner

2017-2012:

• Lithuania and Latvia EURO conversions
• Microsoft Cloud Infrastructure and Operations (MCIO) – Data Centers UK, Canada, Chile, Germany, France, Australia, Austria
• Kazakhstan, China Open Tech branch, Middle East Africa MEA HQ, Tunisia
• VI-Venture Integration Skype Coordinated SAP system readiness and implementation Platform readiness across all Skype countries and developed the Migration & Conversion Plan - Orchestrated migration & subledger conversion for 13 large entities, handling thousands of Purchase Orders & Fixed Assets + overseeing the invoice and balance takeover
• VI-Venture Integration Qik Russia Localization & Rareware UK XBOX Games Studios (Venture Integration)

2011-2007:

• Malta & Cyprus EURO conversion
• Estonia EURO conversion
• Bulgaria, Serbia, MS Systems Marketing Germany, Vietnam, Algeria, VEXCL Austria
• VI-Venture Integration Musiwave France, FAST HQ Norway

2006-2004:

• Malta, Jordan, Vietnam, Cyprus, Senegal, Cameroon, Estonia,
• VI-Venture Integration UK Lionhead Games Studios

Selected Projects I Contributed To (Key Contributor or Stream Owner)
Covered Solution Ownership, Hands-On Delivery

2023-2018:

• GitHub Germany/Australia (Venture Integration), Qatar, Venezuela Currency Redenomination

2017-2012:

• Romania, Myanmar, Brunei, Turkmenistan, China Pegasus, China ZZ Shanghai, Ghana, Nigeria and Kosovo, Skype Sweden, Czech, Cat & Mouse, Romania, Serbia, MGSD India
• Microsoft Cloud Infrastructure and Operations (MCIO) – Data Center Netherlands, Brazil, Malaysia, Austria, Finland, UK, South Africa, Germany, France, Canada, Finland
• Malaysia, Chile, Kazakhstan Localization, Payco Malaysia, Oman, Qatar, Kenya, Angola, Lybia, Abu Dhabi
• VI-Venture Integration Nokia MMDS: Impact Framework & System Readiness, Subledger and Master data mapping, Tax and Withholding Tax mapping
• Greece Localization/Hellenization
• PAYCO Implementations - EOC PayCo Ireland, APOC PayCo Singapore, US PayCo
• RETAIL STORE setup Puerto Rico and Canada

 

• One Finance Outsourcing: contributed to BPO requests and reworked multiple countries to meet global process standardizations

2011-2007:

• Slovakia EURO conversion
• Greece UNICODE
• Brazil Rework, Russia Rework
• aQuantive Australia/Germany/Ireland/UK, Reworks Croatia/ Slovenia/ Estonia/ Latvia/ Russia/ Hungary/ Bolivia/ Costa Rica/ Guatemala/ Uruguay/ Jamaica/ Trinidad/ Honduras,
• R&D Ireland and R&D Canada
• Ukraine UNICODE, TSSX China, Trinidad, Jamaica, Honduras, Sri Lanka, Bangladesh

Subprojects:

• TEO - Tax Engine Optimization project - Vertex implementation
• Tax Compliance & System Updates
• Tax Reworks
• Tax Files & Reporting
• Audit Compliance

Background and Challenges:
Microsoft International (MSI) required a strong and scalable framework to ensure ongoing statutory and tax process compliance across more than 150 legal entities worldwide. The challenge lay in maintaining end-to-end ERP tax compliance in a fast-changing global regulatory landscape. This included driving tax/VAT changes, managing reworks and audits, and delivering timely updates aligned with both local requirements


Role: SAP ERP Platform Tax Compliance Lead BPM (Business Process Manager)
I was accountable for the strategy, governance, and execution of all tax-related system and process changes across the organization

✔ Acted as the global subject matter expert (SME) for tax compliance within SAP FI/CO and LoB systems
✔ Owned and led initiatives around tax updates, reworks, tax file/reporting, and audit compliance
✔ Positioned and established myself as the “WW Change Agent” for financial controllers and tax stakeholders, bridging the gap between statutory requirements, tax authorities, and ERP design
✔ Collaborated cross-functionally with regional operations centers (e.g. Ireland EOC), Global Tax, and external auditors ✔ Integrated statutory changes into the global ERP roadmap, balancing agility


Technologies/Environments:
SAP Modules: FI, CO, MM, PS, SD and various LoB Tools/Applications | Vertex | E-Invoicing | SAF-T / FEC / UNIFILE / SII

SAP Versions: S/4HANA, ERP ECC


1.
TEO - Global Tax Engine Optimization project - Vertex implementation (2016-2020):
Role: Lead Field Engagement

Highlights:

• Led global stakeholder engagement across 50+ countries for Vertex tax engine implementation
• Conducted requirements gathering, readiness assessments, and pre-GoLive validation
• Delivered tax overview sessions and statutory VAT compliance consulting to regional teams and PwC
• Resolved critical escalations through expert handling of SAP tax configurations

2.
Tax Compliance & System Updates
Role: Tax Monitoring & Execution Lead

Proactively monitored global tax changes and led the timely implementation of VAT updates across SAP and Line-of-Business systems in Procurement, Billing, and Licensing. Designed a scalable, cross-functional model with Tax and FinOps to ensure early detection and system readiness. Supported statutory compliance for 150+ entities in close coordination with EOC Ireland and regional teams. Recognized as a trusted advisor for tax compliance and process excellence, consistently ensuring aligned, strategic execution.

Sample Projects:

2020-2013:

• Successfully led and managed Tax updates for 35+ international countries - Tax system updates/reworks successfully implemented for e.g. Greece, Egypt, Lebanon, Montenegro, Luxembourg, Italy, Croatia, Peru, France, Cyprus, Portugal, Montenegro, Spain, Israel, Netherlands, Serbia, Finland, Czech Republic, Latvia, Jamaica, Romania, Slovenia
• Led and managed Malaysia GST introduction (Configuration, Testing, Tools and Reporting implemented)
• Orchestrated Japan Consumption Tax Rate increase including Volume Licensing Systems

2012-2009:

• Successfully led and managed Tax updates for 45+ international countries - Tax system updates/reworks successfully implemented for e.g Spain, Finland, Portugal, Greece, Romania, Panama, Bolivia, Jamaica, New Zealand, Switzerland, UK, Italy, Bangladesh, China, France, Norway, Croatia, Cyprus, Madeira, India, Latvia

3.
Tax Reworks & Withholding Tax Projects
Role: Statutory Tax Compliance Lead

Drove statutory tax compliance across global subsidiaries by applying deep SAP expertise and a proactive, collaborative approach. Delivered results through close alignment with Tax and cross-functional teams, promoting operational excellence and a culture of accountability.

Results & Value Delivered:
✔ Ensured 100% tax compliance post-rework across all countries.
✔ Enabled smooth transition through geopolitical and VAT regime changes (e.g. Brexit, EU accessions).
✔ Reduced audit findings and rework risks through solid change documentation and testing.

Sample Projects:

2023-2016:

• Managed Tax Reworks including Reporting for e.g. Romania, China, Algeria, Ireland, Thailand, Armenia, Israel, Macedonia, Slovenia, Croatia, Sri Lanka, Cyprus
• Brazil Withholding Tax Rework (WHT Project)
• Managed Tax/WHT Reworks for 10+ countries - large tax changes / established systems readiness
• Ireland EOC EMEA Operation Center, France & Italy Tax Rework

2015-2010:

• Croatia: EU accession - enabled SAP EU indicators and Warehouse Tax Configurations Ireland & Netherlands – worked with E&Y on the new EU reporting requirements
• Central Easter Europe Tax Reworks, e.g. Romania, Slovenia, Bulgaria establishing a framework for the solution of handling different Tax-treatment scenarios and posting
• Managed Tax/WHT Reworks for 14 countries - large tax changes / established systems readiness, e.g. Tunisia: Withholding Tax Setup and trainings for Accenture
• China: Beijing BJ branch rework
• Irish EOC Tax Procedure Updates for France, Italy, Bulgaria and Malta
• Slovakia: new VAT Ledger Form developed to cover the new statutory requirements
• Supported the EOC (EMEA Operations Center) TAX Team with Consulting tasks (e.g. Spain Tax setup, Credit Returns analysis, Shipment to Germany, CZ Plants, Norway, KPMG for Ireland, Ukraine-Crimea Tax et al)
• One Finance countries reworks to ensure accurate financial closing and statutory reporting
• Led and Managed Tax/WHT Reworks and Tool Updates for China, Taiwan, Netherlands, Canada, Croatia, Israel, Dominican Republic, Tunisia, Romania, Ireland, Italy, France, Montenegro, Peru, Angola, Luxembourg, Czech Republic, Portugal, Israel, Slovakia Tax Type rework, Morocco, Algeria, United Kingdom
• EOC Ireland: led and implemented checks for the VAT Registration number Master Data in SAP
• China reworks for Gallacake and Chengdu Branch, automatic account/Cost Center assignments and update for the Beijing HQ, the Shanghai Branch and the Shanghai Min Hang Branch including Tools updates
• Netherlands: Rework Tax framework for Warehouse move from Germany to the Netherlands
• Slovenia Localization/Tax Reporting implementation
• Service Tax India rework and implementation

4.
Tax Files & Reporting
Role: Tax Reporting Compliance Lead

Ensured accurate and timely tax reporting across all subsidiaries, including compliance with country-specific file formats and regulatory requirements. Partnered with field teams to implement standardized processes, supporting audit readiness and reducing risk through robust data validation and reporting controls.

Sample Projects:

2023-2012:

Developed and established inventory and view on the SAF-T (Standard Audit File for Tax) landscape and requirements including Microsoft’s SAF-T roadmap to ensure compliance for Angola, Portugal, Poland, Lithuania, Norway, Romania and other new SAF-T requirements anchored under Microsoft’s international Tax Governance and Compliance Framework

• SAF-T compliance for Romania: Requirements gathering, E&Y workshop lead, Master & Transactional data review and solution analysis and proposal
• SAF-T compliance for Angola: Reworked Master data gaps, local CoA setup + mapping and resolved open issues
• SAF-T compliance for Portugal: Led Accounting File implementation, testing and updates to the Master & Transactional data, Chart of Account mapping vs local CoA, setup of Financial Statement Version, taxonomy codes etc / Managed fix to Vertex issues by implementing a BADI fix for the Billing file / Provided the monthly Billing reporting file to Tax Authorities
• SAF-T compliance for Poland: Data preparation and Consulting with Local Teams
• Israel: managed UNIFILE extracts with Tax Authority Uploads – support, consulting, clarifications, security roles, testing, consultant management
• Spain: SII - Immediate Access/Supply of VAT Information - Tax Agency’s electronic VAT system: Analysis, Data management, Consulting, Documentation, Handovers
• France Tax FEC DART Reporting (Fichier des Écritures Comptables /French Tax Administration file): Rework, Reporting adjustments

 

• Intrastat VIES reporting & OneTax Reporting solution Consulting and various contributions
• E-Accounting / Eledger reporting strategy - Digitize Statutory Function: Developed questionnaire on Tax filings and Financial data details and processes - gathered details for the 25+ countries using local ERPs – completed a comprehensive inventory for local ERP usage for documenting process

5.
Audit & Compliance
Role: Global Tax Audit Support Consultant

Served as a key liaison between the organization and tax authorities, supporting global audit compliance initiatives. Actively collaborated with local and international tax authorities to fulfill audit data requests, ensuring accuracy, completeness, and compliance with jurisdiction-specific requirements. Provided expert consulting and documentation support for both internal and external tax audits across multiple regions, helping to mitigate risk and ensure adherence to legal and regulatory standards

Results & Value Delivered:
✔ Achieved full compliance and successful closure of all audits with no major findings.
✔ Demonstrated outstanding documentation accuracy and data readiness.
✔ Strengthened Microsoft’s compliance standing with global tax authorities.

Sample Projects:

2023-2010

• Supported and managed Tax Audits (external & internal) worldwide for 40+ countries, including several jurisdictions with recurring audits conducted every (other) year, e.g. Canada, Turkey, Norway, Poland, France, Germany, Singapore, France, Spain, Portugal, Netherlands, Austria, Italy, South Africa, Lebanon, Greece
• Managed China 1K Enterprise Survey Audit (8+Mio records)
• Japan Tax audit/Government inspections (6+Mio records) & Tax Authorities Withholding Tax requests
• EOC-EMEA Operations Centre Ireland – led and managed audit due to 80 Mio EUR impact worth of sales reported with incorrect VAT IDs

Background & Challenges
Owned and led the global Disbursements, Payments, Banking and Treasury charter within Microsoft International (MSI), ensuring full compliance in disbursement operations across regions. Managed the impact of SAP and LoB tool releases on field operations, mitigated risks, and ensured seamless rollout execution. Supported the Global Bank (Global Payment Platform) initiative and acted as key advisor and owner of operational challenges in the disbursement space.


Role: SAP Lead BPM – Disbursements, Payments, Banking & Treasury

Successfully led and contributed to all phases of the lifecycle with a hands-on approach— from blueprinting to post-go-live support


Technologies/Environments:
SAP FI & TRM Module, various LoB Tools, SWIFTNet, Microsoft BizTalk, SQL Server , PAYMUL/Gentran- , Azure
SAP Versions: S/4HANA, ERP ECC


Key Responsibilities & Achievements

• Led the global rollout of the automated disbursement process across complex geographies and new business models (e.g. Retail Stores, Venture Integration e.g. Skype)
• Delivered Global Payment Platform (Global Bank) implementations in regional markets
• Designed and deployed bank interfaces (e.g. Citibank IDOC, SWIFT-formats: MT103/MT202, PMW, PAYMUL, Gentran, 3PP formats)
• Managed payment format rollouts and adjustments, e.g. DME Romania, resolving tax-specific challenges
• Led, managed, and resolved critical payment issues by swiftly analyzing root causes and driving corrective actions to ensure operational continuity. Key examples include addressing CC1062 Ireland payment failures, implementing UK payment processing fixes, resolving CCA payment run discrepancies, aligning Switzerland’s ESR payment references, and supporting the introduction of KID numbers in Norway.
• Provided expert guidance and support to global Delivery Centers to strengthen payment compliance and execution across regions
• Drove global initiatives: Central Bank reporting, disbursement process harmonization, compliance alignment
• Led the global cleanup of SAP Bank Master Data & IBAN details, ensuring consistency and audit-readiness
• Oversaw system and config reviews/reworks for OneFinance & Global Bank outsourcing, onboarding in 40+ countries
• Contributed to the global Remittance Advice Rework Framework and 3PP audit remediation via controls and reconciliation reporting.

 

• Contributed to Treasury transformation projects: PoB-Pay on behalf, IHCC-In House Cash Center, ZBA-Zero Balance Accounts, Auto Bank & Account Reconciliation, SWIFTNet, Cash Forecasting, global Electronic Bank statement setup and compliance tools (e.g. BAAT – Bank Account Administration), Project Washington (Credit Collection)