Antonio Trejo
Harlingen
Summary
Detail‑oriented Fraud Detection Analyst with a strong passion for alert‑driven investigation and real‑time decision‑making. Experienced in analyzing high‑risk events and now expanding that expertise into SOC operations through continuous cybersecurity learning. Skilled in SIEM monitoring, threat detection, and security event analysis using Splunk, Azure, and KQL‑based log investigations. Actively strengthening SOC capabilities through hands‑on simulated labs focused on alert triage, log correlation, and cloud‑based incident analysis. Recognized for accuracy, critical thinking, and a structured approach to identifying and escalating high‑risk security activity.
Overview
3
3
years of professional experience
1
1
Certification
Work History
Fraud Detection Analyst
Bank of America
Harlingen
06.2024 - Current
- Analyze 60+ real‑time debit‑card alerts daily, applying risk‑based logic and pattern recognition to identify high‑risk anomalies.
- Correlated geolocation, device fingerprints, metadata, and behavioral patterns to validate suspicious activity, escalating confirmed fraud for further investigation.
- Prevented unauthorized transactions and mitigated financial loss through rapid triage and precise decision-making.
- Educated clients on phishing, unsafe links, and online fraud, minimizing repeat exposure to social-engineering threats.
Cybersecurity Consultant Intern
Whirlpool Corporation
Harlingen
08.2024 - 12.2024
- Assisted internal assessors in developing PCI DSS compliance materials and clarifying operational environments for audits.
- Analyzed documentation and process flows to assess security posture and pinpoint areas for enhancement.
- Evaluated payment environments and proposed security enhancements aligned with PCI DSS requirements to strengthen compliance.
Federal Correctional Officer
GEO East Hidalgo Detention Center
La Villa
03.2023 - 10.2024
- Ensured safety and security across housing units through effective policy enforcement, thorough inspections, and timely incident response.
- Utilized strong communication and de-escalation skills to effectively prevent conflicts and uphold order.
- Exercised situational awareness and rapid decision-making to navigate high-pressure environments successfully.
Education
Certification - Computer Science
Cisco Networking Academy
San Jose, CA05-2026
Certification - Cybersecurity
KC7-Cyber
Kansas City, MO05-2026
Skills
- Security Event Monitoring
- Splunk expertise
- Azure Sentinel
- AWS
- KQL analysis
- Log parsing
- Networking
- Python
- Data Analysis
- Offensive Security
- Linux tools
- penetration testing
- Cybersecurity analysis
- Problem solving
Certification
- Cisco CCST Cybersecurity
- PCEP: Certified Entry‑Level Python Programmer
- Data Science Essentials with Python
- Cisco Certified Ethical Hacker
- Splunk Cybersecurity Defense Analyst
- AWS Cloud Practitioner Essentials
Timeline
Cybersecurity Consultant Intern
Whirlpool Corporation
08.2024 - 12.2024
Fraud Detection Analyst
Bank of America
06.2024 - Current
Federal Correctional Officer
GEO East Hidalgo Detention Center
03.2023 - 10.2024
Certification - Computer Science
Cisco Networking Academy
Certification - Cybersecurity
KC7-Cyber