John Holm
Details
• Performing analysis on security collected data and test results.
• Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment.
• Understanding and knowledge of Windows Server internals and Linux fundamentals to include DNS, DHCP, AD, and server replication methods.
• Working as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity, including integrating hardware and operating systems (OS).
• Understanding of data RAID, data backup uses, and technologies. Install and configure software applications requested by end-users.
• Maintain security compliance requirements. Provide documentation and training on advanced IT processes and procedures and other tasks as assigned.
• Defining and developing cybersecurity requirements, design, and architecture artifacts, strategy, plans, and policies.
• Maintenance and configuration of TESA network switches and overall network infrastructure.
• Perform and/or provide guidance and oversight on vulnerability assessments, defining, negotiating, and executing Assessment and Authorization (A&A) events.
• Collaborating with program and engineering disciplines and ensuring cybersecurity solution alternatives.
• Conduct cybersecurity audits to ensure appropriate implementation and compliance of the security posture.
• Define security development and test efforts implementation of security controls of networking devices, databases, operating systems, and hardware and software components.
2022 : Present
Raytheon Missiles & Defense
Senior Cybersecurity Systems Engineer
Supporting DoD on the GEF contract
Manage and troubleshoot GEF’s Top of rack switches (ToR) for military installations in CONUS and OCONUS
Maintain network connectivity to UCS Fabric and NetApp
Tools used for everyday operations : Remedy for tracking trouble tickets. VMware dashboard for network monitoring Spectrum for checking network device statuses’ and referencing network topology.
Set up of VPC for ToR switches.
Management and configurations of NX-OS switches.
Completing on boarding of TOR switches for newly migrated sites
Completing STIG compliance checklists for on boarded sites.
Use of Wireshark packet capture, and Packet tracer tools
Work with TLA and JRSS network architectures.
Work through network Trouble Tickets for Army customers
Currently hold a Secret Clearance for this position (Still active)
2021 : 2022
Seneca Resources
Network Administrator
• Support DOD at the RCC-C
• Manage and troubleshoot interconnectivity between military bases inside the continental US
• Work with TLA and JRSS network architecture
• Manage the ACLs on firewalls and routers
• Manage policies associated with routers and firewalls
• Work through network Trouble Tickets for Army customers
• Work with Cisco, Linux, Juniper, and Palo Alto devices
• Currently hold a Top Secret Clearance for this position (Still active)
2020 : 2021
DirectViz Solutions, LLC
Network Administrator
• Support US Customs and Border Protection Agency
• Installation and repair of Computer images and provided software using boot drives.
• Set-up and install of Windows 10 lite.
• Configuration / installation of security systems and network infrastructure e.g. switches, IP cameras and network video recorders (NVR)
• Managed audio / video and data communication systems.
• Installed and set up surveillance equipment e.g., network video recorders, virtual matrix display controllers, nucleuses, encoders, network cameras, and microphones.
• Read and understand schematics, wiring diagrams and technical drawings.
• Run/terminate fiber optic, Cat6, and power cables.
• Held a DHS Public Trust Clearance for this position.
2018 : 2020
Sentrillion
Installation Technician III
• Stress testing of radio systems for DOD.
• Thorough documentation of tests conducted.
• Worked with UHF, LBAND, SATCOM, and SINCARS antennas.
• Installed radio equipment in HMMWVs.
• Worked on Man Pack radios, Rifleman Radios and NETWARRIOR devices.
• Troubleshooting of said radios.
• Knowledge of DoD anti-threat Software
• Held DOD Secret Clearance for this position.
2017 : 2018
JACOBS TECHNOLOGY GROUP, INC.
Engineering Technician
About
Focused and highly motivated IT professional, with 6 + years of extensive experience in Network Installation, Network Administration, Systems and Cybersecurity Engineering. Utilizing my background in Cybersecurity and Networking to implement comprehensive IT security measures based on the employment needs and mission of the agency. Deploying metric-based solutions and maximizing our security posture. I'm an innovative and energetic team player, relationship builder, and highly effective communicator.
• Ensure the confidentiality, integrity, and availability of systems, networks, and data through the planning, analysis, development, implementation, maintenance, and enhancement of information systems security programs, policies, procedures, and tools.
• Administration of information technology (IT) principles, methods, and security products to protect and maintain the availability, integrity, confidentiality, and accountability of information system resources.
• Implement and advise on IT security policies and procedures to ensure the protection of information transmitted from installation using Local Area Networks (LAN), Wide Area Networks (WAN).
• I have conducted risk analysis, security testing, and certification due to modifications or changes to computer systems, through the use of SCAP scanners and STIG checklists.
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