The Financial Systems team is the technology backbone of Finance at Booking.com, owning the SAP S/4HANA platform and its connected ecosystem of tax engines, compliance tools, and financial integrations. We operate SAP not as a traditional ERP system, but as a strategic finance product platform powering a global, publicly listed organization.
We are on a journey to modernize and simplify our Finance & Tax architecture using S/4HANA, Universal Journal, and cloud-first (RISE) principles — enabling scalable global processes, stronger compliance, and real-time financial insight.
As an SAP FI Specialist, you will act as a Finance & Tax solution leader within this landscape. You will drive architecture, configuration and optimization of S/4HANA Finance processes, ensuring scalable design across multi-ledger, multi-country, and complex tax environments. You will play a critical role in global implementations, system evolution, and enterprise-grade compliance transformation.
Beyond implementation, you will partner closely with Finance, Tax, Engineering and System Integrators to translate complex business requirements into robust, future-proof SAP solutions. You will influence architectural decisions, govern solution quality across testing and cutover and ensure financial data integrity across the ecosystem.
This role requires deep functional expertise, strong architectural thinking, and confident stakeholder engagement. As the organization continues to grow rapidly, you will have the opportunity to shape global finance standards, lead transformation initiatives, and expand your impact beyond traditional FI boundaries.
B.responsible
- Lead end-to-end S/4HANA (On-Prem / RISE) Finance & Tax implementations across all phases, acting as SAP Tax Design Authority.
- Drive Fit-to-Standard workshops and translate global tax & finance requirements into scalable S/4HANA architecture.
- Architect Universal Journal (ACDOCA)–based solutions aligned to tax reporting, multi-ledger, and document splitting strategy.
- Own end-to-end Tax configuration and determination across SD/MM → FI, including VAT/GST, withholding tax, statutory reporting, and e-invoicing.
- Design and govern integration with external tax engines (Avalara, Vertex, Fonoa) and intercompany tax processes.
- Define extensibility boundaries (standard vs WRICEF) and review functional specs for architectural compliance.
- Govern SIT, UAT, data migration validation, cutover (Tax-focused), and ensure audit-ready financial data integrity.
- Ensure effective RISE governance (Cloud ALM, transports, roles) aligned with cloud best practices.
- Lead senior stakeholder workshops, challenge non-standard requirements, and drive cross-functional alignment across Finance, Tax, Tech, and SI.
- Support complex production issues and continuously simplify tax & close processes using S/4 innovations.
B.skilled
- Minimum 10+ years of experience leading end-to-end SAP S/4HANA implementations for global US/EU companies, acting as Lead Functional / Solution Specialist and front-ending business, architecture and delivery streams (Specifically NOT looking for Support Resources)
- Deep expertise in SAP S/4HANA Tax and Core Finance (Universal Journal, GL/AP/AR, New AA, document splitting, multi-ledger and its impact on Tax).
- Strong knowledge of direct & indirect tax processes, VAT/GST, withholding tax, statutory compliance, and e-invoicing.
- Proven experience in minimum 2 full-cycle S/4HANA implementations (Brownfield/Greenfield) as Lead Functional.
- Hands-on experience with Fit-to-Standard methodology and global template rollouts.
- Strong integration knowledge across SD/MM and external tax engines.
- Technical awareness: ABAP debugging, BADI/BAPI, IDocs, data migration validation, and ACDOCA data model understanding.
- Solid understanding of S/4HANA RISE architecture, Cloud ALM, and transport governance.
- Strong architectural thinking with ability to balance SAP standard vs customization.
- Excellent stakeholder management, workshop facilitation, and communication skills.
- High ownership mindset with ability to operate in fast-paced, complex global environments.
Pre-Employment Screening
If your application is successful, your personal data may be used for a pre-employment screening check by a third party as permitted by applicable law. Depending on the vacancy and applicable law, a pre-employment screening may include employment history, education and other information (such as media information) that may be necessary for determining your qualifications and suitability for the position.