09/14/2026 updated

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Senior SAP S/4HANA SD/OTC Consultant (SC Cleared)

London, United Kingdom
Worldwide
Chartered Institute of Management Accountants
London, United Kingdom
Worldwide
Chartered Institute of Management Accountants

Profile attachments

Neil_Williams_SAP_SD_OTC_ATS_Optimised.docx

About me

I’m an SC-cleared Senior SAP S/4HANA SD/OTC Consultant with extensive experience delivering complex greenfield and brownfield implementations across the public sector, aerospace and defence, and commercial organisations. My recent clients include NATO, Deloitte and Accenture.

SAP CloudSAP Customizing/KonfigurationSAP Functional ConsultingSAP HANASAP ImplementationSAP R/3SAP SDRISE with SAP
SAP SD/OTC Process Expertise
Deep expertise in Order-to-Cash (OTC) and Quote-to-Cash (QTC) processes, including Sales Order Processing, Pricing and Condition Technique, Billing and Invoicing, Credit Management, Delivery and Shipping, Returns and Complaints, and FSCM (Credit/Collections/Dispute Management).

SAP S/4HANA Implementation
Extensive hands-on experience delivering both Greenfield and Brownfield SAP S/4HANA implementations on-premise and in the cloud, including RISE with SAP Private Cloud, SAP ECC 6.0, and SAP Activate Methodology across 8 Greenfield and 2 Brownfield projects.

Solution Design and Functional Leadership
Proven capability in solution design and blueprinting, business process documentation, WRICEF and functional specifications, workshop facilitation, onshore/offshore team leadership, test and cutover planning, data migration strategy, and stakeholder and programme management.

SAP Modules Knowledge
Broad knowledge across multiple SAP modules including SD, MM, LE, FSCM, IS-Media, BRF+, RAR (Revenue Accounting), and ABAP Liaison.

IDOC/EDI/XML Interfaces
Experience with IDOC/EDI/XML interface design and delivery, including inbound and outbound IDOCs, XML files, and SAP-to-procurement middleware interfaces via Webmethods.

RISE with SAP and Cloud Platforms
Hands-on experience with RISE with SAP (Private Cloud), GROW with SAP, SAP Activate Methodology, SAP Cloud ERP, and Implementing HANA Cloud Public Edition.

Training and SOP Development
Development of Standard Operating Procedures and training materials to support business users, including delivery of full OTC suite SOP reviews.

Stakeholder and Programme Management
Ownership of stakeholder engagement, programme management, and team leadership responsibilities across large-scale public sector and commercial implementations.

Generative AI and Recent Learning
Completed courses in Generative AI, SAP Cloud ERP, RISE with SAP Methodology, GROW with SAP Public Edition, and People Leadership during a dedicated learning period.

Experience

Professional experience10+ years
Freelancer since2005

Languages

EnglishNative speaker

Project history

SAP S/4HANA SD Lead Consultant (SC Cleared)

Deloitte (Client: NATO Support and Procurement Agency - NSPA)
Solution design for the Support to Deployed Operations (SDO) process across NATO logistics operations. Defined and managed the plan of activities required to close out the design phase to schedule. Prepared and facilitated design workshops with NSPA stakeholders. Produced Business Process Documents (BPDs) formalising the agreed solution design. Platform: RISE with SAP Private Cloud (Brownfield).

Senior SAP S/4HANA SD Consultant (SC Cleared)

Accenture UK and Ireland (Client: Atlas Elektronik UK)
Developed Accenture's SAP SD Aerospace and Defence template for reuse across future engagements. Delivered the SAP SD functional solution in RISE Private Cloud for a Naval/Marine Electronics and Systems client. Produced functional specifications and managed stakeholder engagement throughout delivery. Platform: RISE with SAP Private Cloud (Brownfield).

Personal Leave / Learning

Career Break
Personal leave; completed SAP RISE Methodology, SAP Cloud ERP and Generative AI learning.

Senior SAP SD/OTC Consultant

Arvato UK Consulting (Client: Department for Transport)
Delivered a major S/4HANA Brownfield implementation for a Public Sector client, meeting quality standards within project deadlines. Owned Solution Design and Build, Stakeholder Management and Team Leadership responsibilities. Delivered the Customer Payment Management Service (CPMS) family of interfaces, supporting circa 181m GBP PA in transactions. Ensured key OTC, BRF+, RAR and WRICEF functional requirements were delivered to specification. Platform: SAP S/4HANA On-Premise 1809 and 1909 (Brownfield).

Senior SAP SD/OTC Consultant

Direct Contract (Client: Capita)
Drove adoption of standardised end-to-end OTC processes across multiple business units. Developed Standard Operating Procedures and training materials to support business users. Delivered a successful review of the full OTC suite of Standard Operating Procedures. Platform: SAP S/4HANA On-Premise 1809 (Brownfield).

SAP SD Lead Consultant

Direct Contract (Client: Associated British Ports)
Delivered the SD/QTC/FSCM solution from design through Go-Live and Post-Go-Live support. Assessed company processes and procedures, recommending improvements to functional specifications. Determined requirements and change-request scope in collaboration with data, risk and controls, and testing teams. Managed a small TCS offshore team, ensuring timely, high-quality QTC solution delivery aligned to the project plan. Platform: SAP S/4HANA 1503 On-Premise (Greenfield).

SAP SD Consultant

Direct Contract (Client: TUI Group)
Delivered specialised SAP OTC solutions; supported training/rollout cutover planning and data migration strategy. Planned and oversaw execution of Readsoft Process Director (SAP Add-On). Established and executed the SAP OTC sundry processing function for UK and I (Phase 2), successfully rolled out to Central Europe (Phase 3). Platform: SAP ECC (Greenfield).

SAP SD Consultant

Direct Contract (Client: Office Depot)
Delivered unit/system integration testing including inbound and outbound IDOCs and XML files; resolved IDOC warnings/errors; built SAP-to-procurement middleware interfaces via Webmethods; defined techno-functional specifications for SD/MM/LE configuration. Platform: SAP ECC (Greenfield).

SAP SD and IS-Media Consultant

Direct Contract (Client: Informa Group)
Designed and implemented the Taylor and Francis and Informa Subscription Renewals solution; led the SAP 4.7.2 to ECC 6.0 upgrade; managed acquisition rollouts for Datamonitor and CPDcast, including new membership renewals and output suppression functionality. Platform: SAP ECC (Greenfield).

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