Jeffrey Poore
Crofton,MD
Summary
Results-driven Systems Engineer with over 15 years of experience supporting DoD agencies and enterprise-scale environments. Expertise includes LAN/WAN networking, Windows/Linux administration, virtualization, automation, and secure enclave design. Proven ability to troubleshoot complex systems, implement STIG/RMF hardening measures, and deliver exceptional customer-focused technical support. Extensive experience in classified environments, distributed cloud solutions, cybersecurity tooling, and managing multi-site infrastructures ensures a comprehensive approach to system integrity and performance.
Overview
17
17
years of professional experience
1
1
Certification
Work History
Systems Engineer Senior Advisor
GDIT
11.2021 - Current
- Architected and engineered Google’s SIPRNET enclave for Google Distributed Cloud, enabling DoD IL6 authorization and a 30-person classified help desk.
- Delivered on-site engineering support to multiple GDIT Defense programs: STIG/RMF compliance, VMware ESXi/Hyper-V troubleshooting, Windows Configuration Manager, WSUS, and Linux environments.
- Contributed to numerous GDIT Defense proposal efforts, providing SME input and technical writing for PKI modernization, RHEL/Windows admin, virtualization, and automation.
- Designed and maintained GDIT’s Ansible Automation Platform reference architecture.
- Supported Army MSP program managing patching, maintenance, and lifecycle operations across multi-tenant VMware, AWS Cloud, Windows, and RHEL infrastructures.
Senior Systems Engineer
teKnoluxion Consulting LLC
02.2021 - 11.2021
- Built and maintained two Windows domains with DNS, DHCP, PKI, SCCM, and file/print services.
- Performed configuration, patching, and STIG hardening on Cisco hardware, Windows servers/workstations, and RHEL servers.
- Lead Horizon VDI engineer delivering VDI desktops to 500+ users; maintained gold images and thin-client profiles.
- Designed, deployed, and maintained Root & Sub CA servers in air-gapped environments; issued certificates for vCenter/ESXi/Horizon/SCCM and other systems.
- Built and maintained two HP Simplivity federations (4 ESXi hosts + 4 vCenter appliances each).
- HBSS ePO Administrator: deployed agents, created firewall rules, and performed continuous maintenance/troubleshooting.
Cyber Network Engineer
Applied Network Solutions
02.2019 - 02.2021
- Supported networks used by 92nd and 834th Cyber Operations Squadrons for vulnerability assessments and hunt exercises.
- Maintained Cisco routers, switches, and ASA firewalls.
- Supported two VMware environments with 24 virtual Linux/Windows servers: DCs, DNS, DHCP, TACACS, SolarWinds, etc.
- Stood up a new domain with CAC/ALT token MFA authentication.
- Performed vulnerability scanning and remediation across Cisco hardware, ESXi hosts, Windows servers, and Linux systems.
- Reviewed and applied DISA STIGs to systems and network components.
Linux Systems / Network Administrator
United States Air Force
05.2016 - 01.2019
- Managed enterprise cryptographic key generation and provisioning services.
- Installed/maintained test & production networks using Windows, Linux, Solaris, Cisco, F5, Juniper, McAfee, and Palo Alto systems.
- Provided daily network administration, monitoring, and troubleshooting across routed and switched environments.
- Configured WAN connections to remote sites and managed encryptors/firewalls.
- Managed DISA ACAS vulnerability scanning for 5,000 customers; improved response times by 125%.
- Maintained 18 servers supporting vulnerability/compliance scanning operations.
Network Operations Security Center Crew Chief / Systems & Network Administrator
United States Air Force
02.2012 - 04.2016
- Led operations floor of 12 personnel supporting AFCENT classified and unclassified networks.
- Monitored 10,000 devices and 84 firewalls across 14 deployed locations.
- Coordinated network outages, ticket resolution, rapid repair actions, and network health monitoring.
- Administered enterprise AD services for AFCENT in support of OEF/OOD missions.
- Deployed patches and updates across bases in the Middle East using SCCM.
- Managed applications, file/email servers, web services, and backup/restore infrastructure.
Systems / Network Administrator
United States Air Force
07.2009 - 02.2012
- Supported 28th Bomb Wing networks across 16 squadrons and 4 tenant units.
- Maintained 64 servers supporting email, web, data storage, and security services for 4,500 users.
- Resolved tickets for networked systems, hardware, and enterprise applications.
- Executed TCNO/TCTO orders for compliance and security.
- Deployed 179 days to Afghanistan; managed $250K satellite suite enabling secure comms for 100+ Special Forces operations.
Skills
- VMware ESXi management
- Cisco networking devices
- Windows and RHEL systems
- Ansible proficiency
- Virtualization technologies expertise
- Cybersecurity
- Infrastructure development
- Hardware integration
- Continuous improvement
- Cloud computing
Certification
- Red Hat Certified System Administrator (RHCSA)
- Cisco CCENT
- CompTIA Security+
- ITIL Foundations
- AWS Cloud Practitioner
- Microsoft Azure Administrator Associate
TRAINING
- CCNA Training Boot Camp
- SIPR/NIPR Satellite Access Point (SNAP) Course
- HBSS Administrator Course
- Red Hat Linux Fundamentals
- GDMS GEM One Encryptor Manager
- TACLANE E-Series Encryptor Manager
Timeline
Systems Engineer Senior Advisor
GDIT
11.2021 - Current
Senior Systems Engineer
teKnoluxion Consulting LLC
02.2021 - 11.2021
Cyber Network Engineer
Applied Network Solutions
02.2019 - 02.2021
Linux Systems / Network Administrator
United States Air Force
05.2016 - 01.2019
Network Operations Security Center Crew Chief / Systems & Network Administrator
United States Air Force
02.2012 - 04.2016
Systems / Network Administrator
United States Air Force
07.2009 - 02.2012