Open to opportunities

Kristina Phea

@kristinaphea

Cybersecurity Analyst at Juniper Networks tuning SIEM detections and helping close 150+ high-risk vulnerability findings.

United States

Message

At Juniper Networks, I monitor and investigate security alerts across SIEM, EDR, firewall, and network telemetry. I tuned detection rules to reduce recurring false positives by about 20% and coordinated remediation that helped close 150+ high-risk findings.

Previously, I analyzed network security events and tracked vulnerability remediation at Juniper Networks, then supported security operations at GreenSky in financial services. My work has included incident response, phishing investigations, access reviews, and security practices aligned with NIST CSF and MITRE ATT&CK.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Analyst

Current

Juniper Networks

Mar 2025 - Present (1 year 7 months)

Monitor and investigate security alerts across SIEM, EDR, firewall, and network telemetry, triaging 80–120 events weekly. Tune SIEM correlation rules and coordinate vulnerability remediation, reducing false positives by 20% and closing 150+ high-risk findings.

SIEM Splunk Microsoft Sentinel EDR Firewalls IDS IPS Nessus Qualys CVSS MITRE ATT&CK Incident Response Threat Hunting Phishing Analysis Packet Analysis NIST CSF Access Reviews MFA ServiceNow Jira

Network Security Analyst

Juniper Networks

Jun 2023 - Feb 2025 (1 year 8 months)

Analyzed network and security events across firewalls, IDS/IPS, VPN, DNS, and endpoint logs, reviewing 60–90 alerts weekly. Performed vulnerability assessments and remediation tracking across 500+ assets, improving closure of high-severity findings by 22%.

Firewalls IDS IPS VPN DNS Nessus Qualys Wireshark Nmap TCP IP Log Analysis Vulnerability Management Phishing Analysis ServiceNow Jira Least Privilege Change Control

Security Operations Analyst

GreenSky

Jan 2021 - May 2023 (2 years 4 months)

Monitored SIEM dashboards and security queues for suspicious logins, malware indicators, and anomalous activity in a financial-services environment. Investigated endpoint and user-security events, improving case documentation and reducing avoidable escalations by 15%.