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Mariela RomeroMR

Mariela Romero

Treasury | Operations | Power BI | AI for Fintech

€110/day
Buenos Aires, AR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Mariela

For over 20 years, I coordinated large-scale operations in the banking sector (Banco Galicia), including a network of 23 branches and a team of 7 people. I led training and onboarding for new employees during the integration of HSBC into Banco Galicia, personally assisting each person in adapting to new processes and ways of working. My experience includes bank reconciliations, cash control, cash flow, design of management indicators (KPIs), and detection of operational deviations, always with a focus on bringing order to high-transaction-volume structures.

In parallel, recently I've added training and practical experience in digital tools that enhance my work today: Power BI for building dashboards and data analysis, and Artificial Intelligence (ChatGPT, Gemini, Claude) applied to task automation and daily management. I have also developed and launched my own digital products end-to-end—from idea to sale—which gave me real experience in digital marketing, Meta Ads campaigns, landing pages, and conversion analysis.

This combination—20 years of operational and financial rigor, leadership in team training, and an updated perspective on technology and digital tools—is what I can offer today: not just to organize processes, but to do so by supporting people and with real capacity for adaptation to new ways of working.

Specialties: Treasury, bank reconciliation, cash control, KPIs and control dashboards, team training and onboarding, Excel, Power BI, SAP, Artificial Intelligence applied to management, digital marketing.
  • Spanish

    Native or bilingual

  • English

    Basic

Can work on-site
Buenos Aires (up to 50km)

Experience

  • Banco Galicia
    Treasury and Operations Leader
    January 2008 - January 2026 (18 years)
    Buenos Aires, Argentina
    • Coordinated and supervised the daily operations of a network of 23 branches, acting as a liaison between business areas, technical teams, and external entities to organize priorities and ensure objective achievement.
    • Managed operational relationships with internal and external clients, ensuring clear, orderly, and timely communication in each work circuit.
    • Surveyed, mapped, and redesigned operational circuits between areas, identifying deviations and inefficiencies, eliminating bottlenecks, and implementing corrective actions aimed at optimizing team productivity.
    • Designed, implemented, and optimized work processes between different areas, incorporating management and tracking tools (Excel, SAP, Power BI) to ensure regulatory compliance for the entire operation.
    • Developed dashboards and management indicators (KPIs, including NPS), monitored results, and performed root cause analysis aimed at continuous improvement and facilitating decision-making.
    • Led a team of 7 collaborators, supporting the definition and implementation of new ways of working, and drove pilot projects for operational improvement and transformation, seeking synergies with other areas.
    • Actively participated in the integration of HSBC into Banco Galicia, leading the onboarding of new collaborators and the design of efficient operational circuits during the incorporation process.
    Customer service and communication Digital marketing and Meta Ads campaigns Project management Process design and documentation Change management
  • More S.A.
    Financial Services and International Remittances Teller
    January 2006 - January 2008 (2 years)
    • Executed international transfers, remittances, and payments, serving clients in high-volume transactions under strict operational and service quality controls.
  • Carrefour
    Treasury Assistant
    January 2003 - January 2006 (3 years)
    • Executed high-volume treasury processes—cash handling, bank reconciliations, and payment method control—in compliance with audit and security procedures.

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Education

  • Business Administration Degree
    Escuela Argentina de Negocios
    2011
    Licenciatura en Administración de Empresas
  • Power BI
    Santander Open Academy
    2026
    Power BI

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