Information Security Analyst & Threat Response

DERRELL JOHNSON

951-***-**** • ***********@*****.***

**** **** **** ***, *********, Florida 34744

PROFESSIONAL SUMMARY

Security-focused IT professional with 15+ years of hands-on experience protecting organizations in fast-paced, high-risk environments. Known for a calm, methodical approach to threat detection, incident response, and risk reduction. Brings deep knowledge of tools like Microsoft Defender ATP, Splunk, XSOAR, and ThreatStream, along with a strong ability to communicate complex security issues clearly to both technical and non-technical teams. Passionate about strengthening security posture while enabling business productivity.

CORE SKILLS

• Splunk SIEM & Security Monitoring

• Vulnerability Management (Tenable)

• Endpoint Security (Cisco Secure Endpoint)

• Threat Hunting & Incident Response

• Security Incident Analysis & Forensics

• Risk Identification & Mitigation

• Data Encryption & Security Controls

• Security Compliance & Policy Development

• Business Application & Access Review

PROFESSIONAL EXPERIENCE

Information Security Analyst

Applied Medical – Rancho Santa Margarita, CA

07/2022 – 06/2025

• Partnered closely with IT, engineering, and business teams to ensure systems and applications met security requirements without impacting operations

• Conducted regular security audits, identifying vulnerabilities and driving remediation strategies

• Monitored firewalls, IDS/IPS, endpoint protection, and antivirus solutions to proactively detect and respond to threats

• Investigated security incidents, including unauthorized access, and implemented corrective and preventative controls

• Performed penetration testing and supported disaster recovery and business continuity planning

• Analyzed network traffic and log data to identify malicious or suspicious activity

• Created and refined security policies, standards, and procedures to support organizational growth

• Delivered security awareness training to end users, improving overall security hygiene

• Researched and developed forensic tools and techniques to strengthen investigative capabilities

• Acted as a trusted advisor, recommending security improvements aligned with business needs Cyber Security Analyst (SOC) / Active Directory Administrator Orlando Health (Remote)

07/2019 – 07/2022

• Played a key role in SOC operations, leading incident response and cyber threat investigations

• Leveraged Splunk, Palo Alto WildFire, XSOAR, and ThreatStream/Anomali to identify, assess, and respond to security events

• Conducted detailed forensic investigations using Microsoft Defender and SIEM data

• Managed vulnerability assessments and actively hunted for emerging threats

• Processed and resolved security-related ServiceNow tickets in accordance with SLAs

• Supported and maintained enterprise security systems, including firewalls and intrusion detection solutions

• Assisted with Active Directory administration, access controls, and security hardening

• Developed and documented security standards, procedures, and response playbooks Help Desk Analyst

Westgate Resorts

09/2016 – 12/2020

• Provided reliable IT support to corporate staff, hotels, and timeshare locations across the U.S.

• Troubleshot hardware, software, and network issues with a strong focus on customer satisfaction

• Supported users with email systems, databases, and multiple operating systems

• Diagnosed issues through effective user communication and technical investigation

• Maintained high ticket resolution standards and consistently met SLA targets

• Worked closely with IT teams and business analysts to resolve recurring system issues Desktop Support Analyst

GLE Scrap Metal

03/2018 – 07/2019

• Delivered hands-on technical support for end-user systems, hardware, and software

• Installed and configured network cabling and security camera systems

• Set up printers, VoIP phones, user accounts, and access permissions

• Managed IT onboarding for new employees, ensuring smooth first-day readiness

• Supported company devices and day-to-day IT operations EDUCATION

Associate of Science (AS) – Network Administration Florida Technical College — 02/2015

Contact this candidate