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David DiazDD

David Diaz

Supermalter

Consultor SAP FI (GL-AR-AP-TR-AM-TV) ABAP - WF

€533/day
7 projects
Madrid, ES
15+ years

Average response time: 1 hour

About David

SAP Technical lead, functional consultant and AI engineer building the infrastructure for AI agents on SAP BTP. Creator of three open-source packages that bring LangChain and LangGraph capabilities to SAP HANA Cloud: agent state persistence (langgraph-checkpoint-hana), hybrid BM25 + vector retrieval (langchain-hana-retriever), and semantic LLM caching (langchain-hana-cache).
Hands-on with Python, LangGraph, LangChain, RAG pipelines, SAP AI Core, and agentic workflows on Kyma. Currently building and deploying LangGraph agents in production for enterprise clients.

This AI work sits on top of 29 years of SAP FI-CO delivery. GL, AP, AR, AM, S/4HANA implementations, international rollouts, ABAP development. Clients have included Santander Group, Inditex, Schneider Electric, and El Corte Inglés.

The combination means I deeple understand both the business processes and the technology needed to automate them with AI.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • Portuguese

    Basic

Remote only
Primarily works remotely

Experience

  • BANCO SANTANDER (INETUM)
    Team Leader / Senior Consultant
    BANKING AND INSURANCE
    April 2023 - Today (3 years and 2 months)
    - Led the S/4HANA brownfield migration for over 125 companies within the SantanderGroup, ensuring seamless transition and minimal business disruption.

    - Managed end-to-end FI (GL, AP, AR, AM) configuration, VIM (OpenText) integration, andABAP development, delivering robust and scalable solutions.

    - Oversaw workflow setup, initial data load, and master data migrations, achieving 100% data integrity and compliance with group standards.

    - Coordinated cross-functional teams in a fully remote environment, fostering collaboration
    and knowledge sharing.
    SAP FI-AP SAP - FI-AR SAP FI-GL Abap OO
  • INDITEX (MINDSAIT)
    Senior Consultant
    FASHION AND COSMETICS
    October 2022 - March 2023 (5 months)
    - Delivered SAP FI rollout template deployment for the "Adriáticos II" region (Serbia,Slovenia, Montenegro), accelerating local compliance and business readiness.

    - Customized and optimized FI (GL, AP, AR) processes to meet regional requirements,reducing manual intervention.

    SAP FI-AP SAP - FI-AR
  • SCHNEIDER ELECTRIC (AMARIS CONSULTING)
    Senior Consultant
    ENERGY AND UTILITIES
    May 2022 - October 2022 (5 months)
    - Spearheaded the global TRAX rollout project, configuring F110 and PMW for DMEE interfaces across multiple countries.

    - Developed and implemented PAIN (outgoing) and MT940 (incoming) electronic banking formats, streamlining payment and reconciliation processes.

    - Collaborated with international teams to ensure localization compliance and successful go lives in all target regions.
    SAP FI-AP SAP FI-GL

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Education

  • SAP AI Core - Certified Consultant
    SAP Learning hub
    2025

Skill set

Categories