John Leiva

Experience

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  US Navy

  Jul 1993 - Oct 2009

  Cryptologic Technician

  Supervised changes, upgrades, and maintenance of the Joint Tactical Terminal – Maritime (JTT-M) classroom tactical training hardware and satellite simulator. Expertly trained over 100 personnel to expertly operate and repair the JTT-M. Managed all curriculum updates and course tracking for the JTT-M course. Skillfully served as member of Combat System Training Team; developed complex scenarios for Combat Systems Department that provided trainees with real-world situations. Supervised and Mentored junior personnel, ensuring successful professional and personal advancement. Show less

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  ManTech

  Jun 2012 - Apr 2017

  Network Security Engineer

  Managed the curriculum, Interactive Courseware (ICW), supplemental material, and training packages for Instructor Led Training for Information Assurance (IA) courses of instruction to include HBSS Basic, ACAS/SCCVI, HBSS Fleet Support, Advanced HBSS Training, VRAM, CANES HBSS, and NSVT. Provided training recommendations and subject matter expert support to Program Office for PMW 130-fielded products, including curriculum delivery methods and Technical Training Equipment (TTE). Personally supervised, field, and staff Computer Network Defense (CND) training program schedule. Assisted in development of the Virtual Training Environment (VTE) for the US Navy Network Security Vulnerability Technician (NSVT) course by installing and configuring HBSS, ACAS, and Secure Technical Implementation Guides (STIG) requirements using Security Content Automation Protocol (SCAP) tools. Show less

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  SAIC

  Apr 2017 - Jun 2020

  CANES Training Analyst Principal / System Administrator

  Primary Instructor for Consolidated Afloat Networks and Enterprise Services (CANES) US Navy Network Administrator School. Ensured the successful training and education of 150 Network Administrators annually. Primary System Administrator for $500,000 Tactical Training Environment (TTE), including 90 Servers, 3 Security Boundaries, and Video Teleconference Equipment across 2 Datacenters. Patched and maintained Microsoft Windows, RedHat Enterprise Linux (RHEL), CISCO iOS, and VMWare ESX Operating Systems. Responsible for maintaining 100% up time for TTE, ensuring effective training for US Navy personnel. Show less

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  Cask Government Services

  Jun 2020 - now

  Cyber Security Analyst / Trainer

  Cyber Readiness Team Member, Network Operations Engineer, and Cyber Security Engineer providing direct support to over 80 US Navy Commands, ensuring C5I Readiness for the Pacific Fleet on behalf of Commander Surface Forces Pacific (CNSP). Provides in depth Information Assurance training to US Navy Surface Combatants, Information Technicians, and IP Officers. Proven Subject Matter Expert for WSUS, HBSS (ePolicy Orchestrator), Tenable ACAS, CANES, and DoD Vulnerability Scanning (VRAM). Provides guidance and engineering support for HBSS (ePO) deployment, policy configuration and assignment, database repair, and threat remediation. Assists US Navy Commands in deployment, operation, and policy analysis for HBSS/ESS (ePO) including McAfee Agent (MA), Trellix Endpoint Security (ENS), Host Intrusion Prevention System (HIP), Data Loss Prevention (DLP), Policy Auditor (PA), VirusScan Enterprise (VSE), and Rogue System Detection (RSD). Show less