Cyber Threat Hunter Resume Example

Principal Cyber Threat Hunter · Stripe

San Francisco, CA · 2020 - Present

• Led proactive threat hunting operations across cloud infrastructure (AWS, GCP) and SaaS applications, identifying 15+ critical zero-day and sophisticated APT campaigns, reducing potential financial loss by an estimated $5M annually.
• Developed and implemented 20+ custom detection rules and behavioral analytics in SIEM (Splunk ES) and EDR platforms (CrowdStrike), improving threat detection accuracy by 40% and reducing false positives by 25%.
• Automated threat intelligence ingestion and correlation processes using Python and API integrations, decreasing average time-to-detection for novel threats by 30% and freeing up 10 hours/week for analysts.
• Mentored junior threat hunters and analysts, establishing best practices for cloud-native threat investigation and contributing to a 15% increase in team's investigative efficiency.
• Collaborated with security engineering to deploy enhanced visibility tools, resulting in a 20% improvement in coverage for critical cloud assets against advanced attacker techniques.

Senior Cyber Threat Analyst · Salesforce

San Francisco, CA · 2016 - 2020

• Conducted deep-dive investigations into complex security incidents, including ransomware attacks and insider threats, reducing average containment time by 18% through focused hunting and analysis.
• Developed and maintained bespoke scripts and tools in PowerShell and Bash for automated data collection and analysis from 5000+ endpoints, enhancing forensic capabilities.
• Integrated threat intelligence feeds (OSINT, commercial) with internal security telemetry, enabling the proactive identification of 50+ emerging threats and vulnerabilities.
• Presented findings and threat landscapes to executive leadership and technical teams, improving organizational understanding of risk and influencing security roadmap priorities.
• Performed regular purple team exercises to validate defensive capabilities, identifying 10+ gaps in detection and response that were subsequently remediated.

Cyber Security Analyst · Palo Alto Networks

Santa Clara, CA · 2013 - 2016

• Monitored and analyzed security events from SIEM (ArcSight, Splunk) and network intrusion detection systems, triaging an average of 500 alerts daily with a 95% accuracy rate.
• Contributed to incident response efforts, assisting with initial triage, log analysis, and evidence preservation for 30+ major security incidents.
• Developed and maintained documentation for security procedures and incident playbooks, improving operational efficiency by 10%.
• Participated in vulnerability management activities, including scanning and reporting, contributing to a 15% reduction in critical vulnerabilities across internal systems.
• Performed basic malware analysis and reverse engineering to understand threat behaviors and inform detection strategies.

M.S. in Cybersecurity · Georgia Institute of Technology

Atlanta, GA · 2012 - 2013

• Specialization in Information Security Management and Threat Intelligence
• Graduated with High Honors, GPA: 3.8/4.0

B.S. in Computer Science · University of California, Berkeley

Berkeley, CA · 2009 - 2012

• Concentration in Network Security and Distributed Systems
• Awarded Dean's List for 5 semesters

Senior Cyber Threat Hunter · Splunk

Austin, TX · 2019 - Present

• Led proactive threat hunting operations, identifying and neutralizing 25+ critical advanced persistent threats (APTs) annually across global enterprise networks.
• Developed and deployed custom Splunk Search Processing Language (SPL) queries and YARA rules, resulting in a 30% reduction in false positives and a 20% increase in threat detection efficiency.
• Collaborated with incident response teams, providing critical intelligence that reduced average incident resolution time by 15% for complex security breaches.
• Mentored junior analysts and contributed to the development of purple teaming exercises, enhancing defensive capabilities and security team readiness by 25%.
• Pioneered the integration of new threat intelligence feeds, expanding coverage and enabling detection of novel attack vectors prior to widespread impact.

Threat Hunter Analyst · Palo Alto Networks

Santa Clara, CA · 2016 - 2019

• Executed routine and intelligence-driven threat hunts using Cortex XDR and SIEM tools, successfully uncovering 15+ undocumented malicious activities.
• Analyzed network traffic and endpoint telemetry to identify indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs), improving threat visibility by 40%.
• Developed and refined security content (rules, dashboards, reports) for enterprise clients, leading to a 10% improvement in client security posture scores.
• Participated in incident response activities, assisting in forensic analysis and containment strategies for 50+ security incidents.
• Researched emerging threats and vulnerabilities, translating findings into actionable intelligence reports for internal and external stakeholders.

Network Security Engineer · Dell Technologies

Round Rock, TX · 2012 - 2016

• Designed and implemented secure network architectures, contributing to a 99.99% network uptime across critical enterprise infrastructure.
• Managed and configured firewalls, intrusion detection/prevention systems (IDS/IPS), and VPN solutions, enhancing perimeter security by 20%.
• Performed regular security audits and vulnerability assessments, remediating 100+ high-severity vulnerabilities per quarter.
• Developed Python scripts to automate network device configuration and log analysis, reducing manual effort by 25 hours per month.
• Responded to and resolved network security incidents, isolating affected systems and restoring services within defined SLAs.

M.S. Information Security · The University of Texas at Austin

Austin, TX · 2015 - 2017

• Thesis: 'Applying Machine Learning to Network Anomaly Detection for APT Identification'
• GPA: 3.9/4.0

B.S. Computer Science · Texas A&M University

College Station, TX · 2008 - 2012

• Graduated Magna Cum Laude
• Awarded Departmental Honors for Capstone Project