Summary
Work History
Overview
Education
Skills
Certification
Clearance
Awards
Military Status
Technical Skills
Work Preference
Timeline
Generic
DAVID A. GREENE JR
Open To Work

DAVID A. GREENE JR

Cybersecurity Specialist/Desktop Support Technician
Denver,CO

Summary

Dedicated Cybersecurity and IT Professional with over 15 years of advanced computing expertise and 8+ years of hands-on technical experience. Supported and secured enterprise systems through desktop support, system hardening, and incident response, while enhancing network security and conducting vulnerability assessments across diverse environments. Currently expanding expertise in penetration testing, data analytics, and security frameworks including NIST and OWASP.

Work History

IT Desktop Support Technician

Top Grade Tech
PUEBLO , CO
01.2020 - Current
  • Administer advanced troubleshooting and malware removal for enterprise systems, enhancing system uptime
  • Execute network security configurations for DNS, DHCP, and VPN protocols, strengthening overall network integrity
  • Utilize SIEM tools to monitor logs and mitigate security threats, safeguarding enterprise data
  • Implement system hardening and patching aligned with security policies

CBRN Specialist (74D) | SPC (E-4)

U.S. Army
06.2008 - 08.2013
  • Coordinated logistics for mission-critical operations during deployments in Iraq and Afghanistan, ensuring timely support
  • Provided real-time technical and tactical support in high-pressure environments
  • Maintained accountability for sensitive equipment exceeding $1M, safeguarding operational readiness
  • Managed secure communications via SIPRNet, upholding strict OPSEC protocols to protect classified information
  • Received honorable discharge from military service

Overview

18
18
years of professional experience
8
8
Certification

Education

Bachelor of Science - Cybersecurity & Data Analytics

Southern New Hampshire University

Computer Technician Networking Specialist Diploma -

Hunter Business School

High School Diploma (Equivalency) -

NC State Board of Community Colleges

Skills

(Technical Skills)

Network Security & TCP/IP Fundamentals (DNS, DHCP, Ports & Protocols)

Vulnerability Assessment & Risk Management

Threat Detection, Incident Response & Log Analysis

Penetration Testing & Security Testing (OWASP Top 10, Reconnaissance, Exploitation)

Security Tools:

Neap, Metasploit, Burp Suite, Wireshark,

Nessus, Qualys, Rapid7 Insight's,

Splunk, Microsoft Defender for Endpoint,

CrowdStrike Falcon, Palo Alto Networks,

Cisco Secure Firewall, IBM Quadra, Snort

SIEM & Monitoring Tools (Splunk, ELK Stack)

Firewall, IDS/IPS Configuration & Network Defense

Windows & Linux System Administration

Active Directory & User Access Management

IT Support & Help Desk Troubleshooting

(Hardware, Software, Remote Support)

VPN Configuration & Network Connectivity Troubleshooting

Scripting & Automation (Python, Bash)

Security Frameworks & Compliance (NIST, ISO 27001)

Certification

  • (Google) Assets, Threats, and Vulnerabilities
  • (Google) Connect and Protect: Networks and Network Security
  • (Google) Foundations of Cybersecurity
  • (Google) Play It Safe: Manage Security Risks
  • (Google) Sound the Alarm: Detection and Response
  • (Google) Tools of the Trade: Linux and SQL
  • (IBM) Introduction to Data Analytics
  • (SNHU) Cybersecurity and Data Analytics
  • CompTIA A+ Certification, CompTIA
  • CompTIA Network+
  • CompTIA Security+
  • DoD 8570
  • Hunter Business School - Computer Technician Network Specialist (900-hour program)
  • ITIL Foundation

Clearance

Secret Clearance Eligible

Awards

  • Army Achievement Medal
  • Afghanistan Campaign Medal (2 stars)
  • Iraq Campaign Medal
  • NATO Medal

Military Status

Military Veteran

Technical Skills

Splunk, IBM QRadar, Microsoft Sentinel, SIEM Log Analysis, Incident Response, Nmap, Wireshark, Metasploit, Burp Suite, SQLMap, Gobuster, NIST CSF, NIST 800-53, RMF, ISO 27001, MITRE ATT&CK, OWASP Top 10, TCP/IP, DNS, DHCP, VPN, Firewalls, IDS/IPS, Windows Server, Kali Linux, Ubuntu, Python, Bash, PowerShell, SQL, IBM Data Analytics

Work Preference

Job Search Status

Open to work

Salary Range

$45000/yr - $200000/yr

Timeline

IT Desktop Support Technician

Top Grade Tech
01.2020 - Current

CBRN Specialist (74D) | SPC (E-4)

U.S. Army
06.2008 - 08.2013

Bachelor of Science - Cybersecurity & Data Analytics

Southern New Hampshire University

Computer Technician Networking Specialist Diploma -

Hunter Business School

High School Diploma (Equivalency) -

NC State Board of Community Colleges

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DAVID A. GREENE JRCybersecurity Specialist/Desktop Support Technician