AI & SAP
CONSULTING

AI Enablement, Agentic AI & Procurement Expertise

AI & SAP professional | 10+ years experience in AI, S/4HANA, ECC (MM/SRM), ABAP-OO | GenAI & LLM Integration | Agentic AI for ERP systems | Project Leader for Enterprise AI Solutions | Python, Cloud (AWS, Azure) | ongoing PhD in Data Science | Expertise in Procurement and Business Process Automation

SCROLL

SERVICES

What I Deliver

01

AI-DRIVEN PROCUREMENT AUTOMATION

Designing orchestration layers that bring adaptive intelligence into SAP procurement systems using LLMs, machine learning, and cloud AI platforms — replacing manual, rule-based workflows.

02

AGENTIC AI & RAG ARCHITECTURES

Building intelligent agents and sophisticated RAG pipelines using AWS Bedrock, IBM watsonx, Azure AI, n8n, CrewAI, and LangChain — with production-ready evaluation and monitoring.

03

DATA SCIENCE & MACHINE LEARNING

Developing neural networks, classification models, and analytics dashboards using Python, TensorFlow, scikit-learn, and pandas — applied to ERP data for spend optimization and process automation.

04

SAP BTP & JOULE INTEGRATION

Leveraging SAP Joule Studio, Agent Builder, SAP Build, and BTP services to create agentic workflows and intelligent integrations within the SAP ecosystem.

05

SAP S/4HANA & AI CONSULTING

Deep expertise in SAP S/4HANA MM, Central Procurement, ECC, and SRM, with strong experience in process design, integration and customization across various platforms.

06

PROJECT LEADERSHIP & STRATEGY

End-to-end project management using SCRUM and SAFe frameworks — from requirements analysis and conception to testing, go-live, and hypercare — with up to 9 direct reports.

07

AI STRATEGY CONSULTING

Helping organisations navigate the fast-moving AI landscape with confidence — translating cutting-edge research and emerging model capabilities into actionable roadmaps and sound investment decisions.

ABOUT

Mission & Vision

Paul Oesterwitz

Modern enterprises face growing challenges in creating seamless, intelligent procurement processes. Even with tools like SAP S/4HANA, S/4HANA for Central Procurement, and SAP BTP, critical workflows remain fragmented, manual, and slow to adapt.

I combine technical depth, strategic leadership, and a research-driven mindset to deliver next-generation automation in enterprise procurement and business processes. Currently pursuing a PhD at the University of Mannheim on enabling LLMs to navigate ERP systems.

APPROACH

AI-First Design

Replacing rigid rule-based systems with adaptive, cognitively aware solutions using LLMs, agentic AI, and ML

Deep SAP Expertise

12+ years across S/4HANA, ECC, SRM — from development to strategic consulting

Research-Driven

PhD research on AI-ERP integration at the University of Mannheim's Chair of Data Science

EXPERIENCE

12+ Years

PROJECTS

15+

INDUSTRIES

6+

SELECTED PROJECTS

Track Record

04/2026 – present

Enterprise Client

SOURCE-TO-PAY AI INITIATIVE

AISAPMANAGEMENT
External AI Consultant (Freelance)

Freelance AI consultant leading a strategic AI programme to augment sourcing and purchasing processes in a highly complex SAP and non-SAP environment. Status-quo analysis, AI roadmap, and acceleration of organisation-wide AI adoption.

AI StrategySAPSource-to-PayProcess Consulting
04/2025 – 09/2025

Software Vendor, Tax Consultancies

GENAI CHATBOT – VECTOR EMBEDDING IN TAX SECTOR

AIMANAGEMENT
Product Owner / Project Manager

Project management for improving chatbot performance using massive vector embeddings. Research and evaluation of approaches to improve response accuracy and context understanding.

PythonJavaAzure AI StudioOpenAIEmbedding ModelsLLM-as-a-Judge
07/2024 – 11/2024

Automotive

AI IN CUSTOMER INTERACTION CENTER

AIMANAGEMENT
Project Manager, Developer

Implementation of automatic LLM-supported translation for complaint management. Project setup, stakeholder management, and technical solution consulting.

PythonvLLMAWS BedrockAzure OpenAI Service
04/2024 – 06/2024

Automotive

KNOWLEDGE GRAPH + LLM POC FOR IT ASSET MANAGEMENT

AIMANAGEMENT
Project Manager

Implementation of a knowledge graph ontology with LLM integration via generated SPARQL queries for IT software asset management.

Pythoneccenca Corporate MemoryOllamaSPARQLRDF
04/2024 – 07/2024

Software Vendor, Tax Consultancies

GENAI TEXT GENERATION FROM TABULAR ECONOMIC DATA

AIMANAGEMENT
Project Manager

Design of a GenAI function generating business KPIs from tabular economic data. Architectural design participation and unit testing.

PythonJavaOllamaMistralGemma
09/2023 – 03/2024

Automotive Supplier

GLOBAL PURCHASING SYSTEM

SAPMANAGEMENT
Project Manager & SME

Interface development in a multi-system landscape for non-production procurement. Design of complex interface landscape for mass data synchronization.

SAP SRMwescale ProcureCustom Development
08/2020 – 05/2023

Automotive

S/4HANA INTRODUCTION

SAPMANAGEMENT
Stream Lead – Requisitioning & Central Procurement

Comprehensive S/4HANA implementation replacing legacy systems with process redesign. Solution architecture for centralized cross-system purchasing platform.

SAP S/4HANACentral ProcurementMDGWPS4
06/2022 – 11/2022

Internal

SAP MACHINE LEARNING POC

AISAPMANAGEMENT
Project Manager & Developer

Prototype of automated field filling using a neural network within an SAP Fiori application. Development of neural network and REST interface support.

SAP S/4HANAAWSNeural NetworksSAP Fiori
06/2021 – 09/2023

High-Tech

ORDER / SERVICE FULFILLMENT

SAPMANAGEMENT
Stream Lead – Cross-Company Orders

Process harmonization in order and service fulfillment. IT responsibility for implementation and design of purchasing processes.

SAP ERPSAP MMProcess Design
08/2020 – 03/2021

Credit Agency

PROCUREMENT COORDINATION

SAP
Developer & Process Designer

Implementation of standardized indirect procurement processes with position-based shopping cart approval and completion workflows.

SAP SRMArchiveLinkABAP
01/2019 – 06/2020

Automotive

GLOBAL INDIRECT PURCHASING PLATFORM

SAP
Application Consultant, Developer

Continuous adaptation of a global indirect purchasing platform (200k+ users) with cloud purchasing solution integration.

SAP SRMwescale ProcureCustom Development
08/2018 – 02/2019

Automotive Supplier

VDA 9003 SUPPLIER EVALUATION

SAPMANAGEMENT
Sub-Project Leader, Process Designer

Development of a KPI-driven supplier evaluation process per VDA 9003 standard and implementation of analysis software.

SAP ERP MMProcess DesignVDA 9003
04/2017 – present

Automotive

SAP LOGISTICS TEMPLATE ADAPTATION

SAPMANAGEMENT
Subject Matter Expert

Continuous adaptation of an SAP template for material planning, logistics, sourcing, and legacy system integration across departments.

SAP ERP MMSAP APO3rd Party Tools
03/2016 – 05/2017

Automotive Supplier

WORLDWIDE STANDARD LOGISTICS TEMPLATE

SAP
Rollout Coordinator & Consultant

International standardization of production control, scheduling, procurement, and master data across multiple plants.

SAP ERPSAP APOGlobal Rollout
10/2015 – 04/2016

Tool Manufacturer

SAP SLC IMPLEMENTATION

SAPMANAGEMENT
Sub-Project Leader, Solution Architect

Full SAP Supplier Lifecycle Management implementation — from workshops and requirements engineering to go-live and application management.

SAP SLCSAP ERP MMABAP
06/2015 – 12/2015

Automotive Supplier

SAP SRM UPGRADE

SAP
Application Management Member

Introduction of a new global SRM system version for non-production materials with integration testing and custom enhancements.

SAP SRMSAP ERPCustom Development
10/2014 – 12/2014

Oil & Gas

INDIRECT PROCUREMENT ROLLOUT

SAP
SME for SAP SRM

Rollout of a global SAP SRM template with fit-gap sessions, business process adaptation, and training concept support.

SAP SRMQuadremSAP OpenText VIM
10/2013 – 04/2015

Plant Engineering & Automotive

GLOBAL STANDARD ERP SOLUTION

SAP
SME for SAP SLC

Comprehensive SAP implementation across all company departments. Defined supplier management processes including onboarding, qualification, and evaluation.

SAP MMSAP SRMSAP SLC

GET IN TOUCH

Every New Challenge
Sparks My Creativity

Looking for AI-driven procurement automation or SAP consulting expertise? Let's discuss how I can help transform your enterprise processes.

LOCATION

Mannheim, Germany

CORE TECHNOLOGIES

SAP S/4HANAABAP-OOPythonTensorFlowLangChainAWS BedrockAzure AIIBM watsonxSAP BTPRAPCDS