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Luis Alfonso Castillo VictoriaLA

Luis Alfonso Castillo Victoria

Administrative Management and Billing

€134/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Luis Alfonso

Administrative management specialist with almost 5 years of experience in operational departments. My career combines 3 years in the Purchasing and Logistics area, managing orders and suppliers, with my current specialization in the Billing Cycle and Collections Control.

I master Beta10 software for work order management, billing, and document management, in addition to Microsoft Excel (pivot tables and reports) to ensure data reconciliation and the company's financial health. I am an organized person, accustomed to working autonomously and focused on optimizing administrative processes to avoid cash flow incidents.
  • Spanish

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Sicor Seguridad SL
    Office Administrator
    October 2025 - Today (8 months)
    Madrid, Spain
    • Creation of work orders
    • Creation, Management, and control of technicians' work reports
    • Creation of projects and document management
    • Reception, review, and accounting of supplier invoices
    • Recording of expenses for technicians and delegates
    • Coordination of work with technicians
    • User-level Excel handling: pivot tables, reports, etc.

    During my time at Sicor, I have ensured administrative fluidity between the technical and financial departments, ensuring that 100% of the work reports are converted into error-free processed invoices. My management of expenses and supplier invoices has allowed for rigorous control of the costs of the projects under my responsibility.
    Billing Microsoft Excel Document Management Project Management beta10
  • Sicor Seguridad SL
    Purchasing and Supplier Control Administrator
    July 2022 - October 2025 (3 years and 3 months)
    Madrid, Spain
    • Procurement management: Creation, tracking, and control of material orders.
    • Supplier relations: Direct contact and incident management to ensure delivery times.
    • Cost analysis: Comparison of offers and purchasing plans to optimize the budget.
    • Document control: Organization of delivery notes and administrative records.

    During these 3 years, I managed the delegation's supply flow, achieving efficient coordination between the technicians' needs and the receipt of materials, which gave me a solid foundation for the billing control I currently perform.
    Purchasing Logistics Supplier Management Negotiation Procurement

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Education

  • Higher Level Vocational Training
    Vocational Training (Higher Level). Innovation in Vocational Training
    2025
    Grado superior
  • Baccalaureate
    IES PALAS ATENEA
    2011
    Bachiller de

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