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Adrian Gatmaitan

@arcgatmaitan

Senior fraud specialist at eMcREY, tuning FIS Memento rules and back-testing transaction data for financial institutions.

Saudi Arabia

Message

At eMcREY, I provide implementation, rule development, and production support for the FIS Memento Fraud Management System across Tier-1 financial institutions. I simulate and back-test detection rules against historical transaction data before deployment.

At GCash, I managed and tuned 260+ real-time fraud detection rules and risk parameters. I used advanced SQL to investigate false-positive triggers and developed Looker Studio dashboards and executive risk reports.

At Security Bank Corporation, I analyzed banking and card transactions and calibrated monitoring parameters, reducing false-positive ratios from 1:15 to 1:8. Earlier, I delivered business intelligence reporting at Henkel Asia Pacific Service Centre and held data and reporting roles at CGI Philippines and Accenture Philippines.

Experience

Work history, roles, and key accomplishments

Current

Senior Enterprise Fraud Specialist

Current

eMcREY

Jun 2026 - Present (4 months)

Provide implementation, rule development, and production support for the FIS Memento Fraud Management System across Tier-1 financial institutions. Design and tune detection logic, run rule simulations and back-testing, and configure automated risk controls.

FIS Memento Rule Simulation Backtesting Detection Logic Workflow Configuration Maker Checker Risk Scoring XML System Logs Trace Analysis

Fraud Platforms Administration (Lead IC)

GCash

Dec 2023 - Jun 2026 (2 years 6 months)

Managed and tuned 260+ real-time fraud detection rules and risk parameters across a high-volume payment platform. Extracted transaction subsets via advanced SQL to isolate complaint hotspots and high false-positive triggers, and developed operational dashboards and executive KRI reports.

Fraud Detection SIEM Rule Tuning Advanced SQL CTEs Window Functions Looker Data Integrity Velocity Thresholds Risk Reporting Cross Functional Collaboration

Fraud Analytics Officer (Assistant Manager)

Security Bank Corporation

Oct 2022 - Dec 2023 (1 year 2 months)

Analyzed retail banking and card transaction data using SQL to uncover emerging fraud patterns and evaluate rule effectiveness. Reduced false-positive ratios from 1:15 to 1:8 through targeted parameter calibration and supported point-of-compromise investigations.

SQL Fraud Analytics False Positives Reduction Calibration POC Investigations Executive Dashboards Risk Recommendations

Senior Reporting Specialist

Henkel Asia Pacific Service Centre

Aug 2017 - Oct 2022 (5 years 2 months)

Delivered weekly, monthly, and quarterly business intelligence reports and interactive performance dashboards using operational datasets and SQL queries. Harmonized metrics, reporting templates, and data validation practices across global cross-functional teams.

Business Intelligence SQL Data Standardization Reporting Dashboarding Data Validation