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Nury MahechaNM

Nury Mahecha

Senior Fraud Prevention Expert

€300/day
Santafe de Bogotá, CO
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Nury

Senior Fraud Prevention Expert

With over 8 years of experience in the financial sector and a Master's degree in Cyberintelligence, I specialize in protecting the operational integrity of banking entities and Fintechs. My approach combines strategic risk vision with technical capability to detect and neutralize complex threats.

What do I bring to your project?

Fraud Prevention: Design and implementation of internal controls and transactional monitoring models.

Intelligence Analysis: Identification of attack patterns and digital threat vectors.

Crisis Management: Leadership in incident response and financial loss mitigation.

Prevention Culture: Development and leadership of practical workshops for operational teams on anomaly detection and new fraud typologies.

I have worked in leading institutions, optimizing security processes and drastically reducing fraud rates. I am a results-oriented professional, capable of quickly integrating into remote or hybrid teams to strengthen their defenses from day one.
  • Spanish

    Native or bilingual

Can work on-site
Santafe de Bogotá (up to 50km)

Experience

  • BBVA Colombia
    Financial Crime Prevention Analyst
    December 2021 - January 2026 (4 years and 1 month)
    • • Supervised and directed the anti-fraud strategy for the corporate channel, establishing a framework of mitigation rules and early detection controls, achieving an estimated 20%–30% reduction in fraud events, with strategic guidance for a team of 6 transactional monitoring analysts.
    • • Directly led a team of 3 fraud investigation analysts for 2 years, managing complex cases, incident analysis, and team professional development; subsequently assumed a strategic role for an additional 2 years, guiding operational guidelines.
    • • During the 4 years, I was called upon as a fraud expert by judges and control bodies, supporting legal management and the clarification of fraud events.
    • • Executed post-mortem analyses to identify fraud patterns and modus operandi, generating input for the adjustment of rules and mitigation strategies in the corporate channel.
  • Rappi
    Fraud Prevention Analyst
    July 2021 - December 2021 (5 months)
    • • Performed transactional behavior analysis and pattern detection, contributing to the setup and optimization of anti-fraud rules.
    • • Executed continuous adjustments in detection models, improving accuracy and reducing operational friction.
    • • Detected security gaps and vulnerabilities, ensuring data integrity and control effectiveness.
  • Rappi
    Travel Fraud Lead
    November 2019 - July 2021 (1 year and 8 months)
    • • Directly managed a team of 5 analysts, supervising and evaluating operational processes, ensuring efficiency in alert management and objective achievement, with an estimated 15%–20% reduction in alert analysis times.
    • • Led the identification of anomalies and transactional peaks through behavioral analysis, establishing new control rules derived from forensic findings, contributing to an estimated 25% improvement in early detection.
    • • In response to new fraud vectors in the Travel segment, coordinated comprehensive responses that included adjustments in the customer service flow (call center), redefinition of validation processes, and changes in business rules to hinder adversary operations in the channel.
    • • Founded the creation of the Travel fraud area from scratch, defining with technology and business the area's parameters, operational processes, and incident response capabilities — establishing the strategic foundations of the area (fraud prevention, transactional monitoring, cross-functional leadership, fintech operations).

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Education

  • Master's Degree
    Máster
  • Master's Degree
    International Cybersecurity Campus
    2025
    Máster

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