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Oussama AghzennayOA

Oussama Aghzennay

Billing & IT Service Delivery Manager

€350/day
Madrid, ES
3-7 years

Average response time: 1 hour

About Oussama

I’m a Project & Service Delivery Consultant specialized in IT and Energy. I help companies streamline operations, fix billing issues, and improve vendor performance across complex organizations.

I have managed €35M+ IT service contracts, reducing invoice errors and optimizing billing for 500+ entities. I’ve also led international PMO initiatives that increased efficiency and delivered measurable cost savings.

I excel at aligning stakeholders, turning operational chaos into reliable processes, and creating clear, repeatable solutions. I enjoy working on projects where I can bring structure, clarity, and measurable results.
  • Spanish

    Native or bilingual

  • English

    Fluent

  • Arabic

    Native or bilingual

Can work on-site
Madrid (up to 50km)

Experience

  • Management Solutions
    Senior Consultant | Billing & IT Service Delivery Manager
    October 2024 - Today (1 year and 8 months)
    Madrid, Spain
    • Own end-to-end IT billing and service delivery operations for a multinational energy group, managing vendors under a €35M+ annual contract.
    • Act as primary coordination point between IT, Finance, Legal, and external providers, ensuring service compliance, cost accuracy, and SLA adherence.
    • Management of projects related to the rollout of new services within the billing and service management platform, defining timelines, dependencies, and delivery milestones.
    • Oversee intercompany cost allocation for 500+ entities, ensuring financial transparency and audit readiness.
    • Prepare and present quarterly executive-level reports to C-suite stakeholders on budget execution, risks, and operational performance.
    Delivery Management Gestión de proyectos (PMO) Reporting Agile Project Management Cost control strategies
  • Management Solutions
    Consultant | IT Operations & Purchase to Bill Coordinator
    February 2023 - October 2024 (1 year and 8 months)
    Madrid, Spain
    • Managed end-to-end processing of 300+ annual purchase orders and 800+ material receipts for IT services, ensuring 100% alignment with vendor contracts.
    • Implemented additional control layers in PO and invoice matching, reducing manual errors and cutting processing time by 20%.
    • Led automation initiatives to transform manual processes using SAP and Power Automate.
    • Worked closely with IT, Finance, and Legal teams to standardize operational workflows and improve governance across IT spend.
    Mejora de procesos Digital Transformation
  • Management Solutions
    Technology Transformation PMO Consultant
    February 2022 - February 2023 (1 year)
    Madrid, Spain
    • Supported digital transformation as part of the PMO of a large project involving the conceptualization and implementation of advanced technological solutions.
    • Coordinated integrated system testing and UAT activities, ensuring compliance with IT governance standards.
    • Delivered bi-weekly progress and risk reports to the CIO, supporting decision-making at executive level.
    Gestión de proyectos (PMO) Digital Transformation Desarrollo de negocios Agile Project Management

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Education

  • Master in Business Consulting & Energy
    Comillas Pontifical University ICAI-ICADE
    2024
    Master in Business Consulting & Energy
  • Double BSc. Chemical and Energy Engineering
    King Juan Carlos University
    2022
    Double BSc.

Certifications

  • Google Project Management
    Google
    2024
    Gestión de equipos Gestión de proveedores Gestión de proyectos

Skill set

Categories