Rachelle Tajiri

Accomplished Cybersecurity Professional with 17 years of experience in highly regulated healthcare environments. Expertise includes Active Directory, Windows Server, Splunk, SIEM, and digital forensics. Demonstrated ability in vulnerability assessment, incident response, and regulatory compliance, ensuring the protection of sensitive information in dynamic settings.

• Purdue University, Professional Certificate in Cybersecurity, 04/01/26, Security Operations, SIEM, Splunk, Incident Response, Digital Forensics, Active Directory, IAM, NIST CSF, MITRE ATT&CK, SQL, Risk Management
• State of Hawaii, Registered Veterinary Technician (Active License)

• Active Directory Administration, Built and configured a Windows Server 2022 Active Directory environment in Oracle VirtualBox. Configured Domain Controllers, Organizational Units, users, groups, DNS, and Group Policy. Implemented centralized authentication and identity management.
• Windows Security Monitoring, Configured Windows Audit Policies and investigated security events using Event Viewer. Automated security log reporting with PowerShell. Analyzed Windows authentication and process creation events to support security monitoring.
• Vulnerability Assessment & Penetration Testing, Performed reconnaissance, vulnerability scanning, and web application testing using Nmap, Nikto, Gobuster, Burp Suite, and OWASP Juice Shop. Documented vulnerabilities and remediation recommendations using industry-standard reporting practices.
• Digital Forensics & Incident Response, Recovered deleted files using FTK and analyzed hidden data in forensic lab exercises. Applied evidence collection and documentation techniques during simulated investigations.
• Network Reconnaissance, Conducted OSINT, host discovery, and service enumeration using Recon-ng, WHOIS, and Nmap. Produced structured reconnaissance reports to evaluate external attack surfaces.