David Mickenberg
Salt Lake City,Utah
Summary
Cybersecurity professional holding a Master’s in Cybersecurity with 1.5 years of direct experience, complemented by 14 years in system and network administration. Proficient in implementing DISA STIG and NIST 800-53 guidelines, performing vulnerability assessments, and executing penetration tests. Demonstrated success in endpoint hardening within enterprise and military frameworks, prioritizing compliance and business continuity. Distinguished for high attention to detail and effective risk mitigation approaches.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Information System Security Engineer (ISSE)
L3Harris
11.2023 - 05.2025
- Lead cyber hardening for DoD devices by applying DISA STIGs to Windows 11 and VMware environments, improving baseline compliance by 30%.
- Analyze vulnerability scan results (Nessus) and develop custom reporting for client deliverables.
- Liaise with international clients to ensure hardware compliance and secure replacement policies.
- Draft onboarding documentation and lead internal cybersecurity training for new hires.
- Automate DISA STIG Compliance and imaging process for 15 Windows 11 tablets.
- Automate Windows 11 cybersecurity hardening image for rapid deployment across 100+ systems. Incease efficiency by 75 percent through image deployment.
System Administrator
Arizona Department of Transportation
07.2023 - 11.2023
- Supported IT infrastructure across 2 port-of-entry locations.
- Led end-of-life server refresh initiative.
- Managed user provisioning and permissions in Active Directory and G-Suite.
Senior System Executive
AIT AccountabilIT LLC
08.2021 - 03.2023
- Provided Tier 2/3 support to 30+ client environments; maintained AD and local security.
- Streamlined recovery processes reducing server downtime from 4 hours to 45 minutes.
- Migrated documentation from spreadsheets to IT Glue, structuring VPN/firewall and credential management.
Education
M.S. - Cybersecurity
Southern New Hampshire University
Southern New Hampshire 05.2024
B.S. - Information System Security
ITT Technical Institute
Kansas City, MO06.2013
Skills
- Information security skills
- Vulnerability assessment tools
- Nessus, Metasploit, Snort, Nmap, Wireshark
- Data protection technology
- BitLocker encryption
- Operating system management
- Windows Server and Linux environments (Kali, Ubuntu)
- Virtualization solutions with VMware and Active Directory integration
- Scripting proficiency in PowerShell and Python languages
- Regulatory frameworks compliance with NIST 800-53, DISA STIG
Certification
- - CompTIA Security+ | CompTIA Network+ | CompTIA A+
- Pursuing: CISSP - target for 2025.
Clearance
- Top Secret
Timeline
Information System Security Engineer (ISSE)
L3Harris
11.2023 - 05.2025
System Administrator
Arizona Department of Transportation
07.2023 - 11.2023
Senior System Executive
AIT AccountabilIT LLC
08.2021 - 03.2023
M.S. - Cybersecurity
Southern New Hampshire University
B.S. - Information System Security
ITT Technical Institute
Similar Profiles
Sandeep SharmaSandeep Sharma
Workshop Supervisor (TECH D) at L3HarrisWorkshop Supervisor (TECH D) at L3Harris
Alex PetersAlex Peters
Electronic Warfare Tester at L3HarrisElectronic Warfare Tester at L3Harris
LaToya SamuelLaToya Samuel
Product Acceptance Specialist at L3HarrisProduct Acceptance Specialist at L3Harris
Jimmy HarrisJimmy Harris
Windows Server Administrator at ConduentWindows Server Administrator at Conduent
Shaunna SatterwhiteShaunna Satterwhite
Patient Service Representative at Granger MedicalPatient Service Representative at Granger Medical