Alex Espinoza

Information Security Analyst Ii @Ryan

Plano, TX, US

Provide enterprise-level cybersecurity operations and incident response across a complex, multi-platform security environment supporting critical business systems- Serve as a primary responder for alerts generated by endpoint detection and response, email security, network security, identity protection, cloud security, and data protection platforms- Perform advanced threat hunting across endpoint, network, email, and identity telemetry to identify malicious activity, insider threats, and anomalous behavior- Investigate endpoint security events including device control violations, malware execution, lateral movement indicators, and persistence mechanisms- Monitor and manage security incident queues, correlating alerts to incidents and coordinating remediation through closure- Analyze secure web gateway and cloud access security alerts, including policy enforcement actions, traffic inspection, and deception-based detections- Investigate email-based threats including phishing, business email compromise, malicious attachments, and domain abuse campaigns- Conduct identity and access security investigations involving authentication anomalies, MFA challenges, and privilege misuse- Track and validate vulnerability remediation efforts, ensuring corrective actions are implemented and risks are reduced- Maintain and triage a centralized Information Security intake channel, responding to user-reported concerns, alerts, and escalations- Collaborate with IT, infrastructure, and engineering teams to improve detection logic, response workflows, and security control effectiveness.

Thinkful

Bootcamp, Front End Web Development

Western Governors University

Bachelor of Science - BS, Cybersecurity and Information Assurance

Tarrant County College

Associate’s Degree, Cybersecurity