Yoan Sardina. Menu
Hello World

I am Yoan Sardina,
a experienced professional in
IT Infrastructure Management
& Cybersecurity.

About

IT professional with extensive results-driven knowledge of network communication systems in cybersecurity. Able to construct, install, and maintain highly complicated LAN/WAN/VPN networks with robust security and system performance. Managed IT infrastructure, delivered high-quality technical support, and led technical teams with proven track records. Known for getting systems running, system upgrades, and incorporating new ways to make an operation more efficient. Has a Bachelor of Science degree in Cybersecurity from Purdue Global University and several certs, including Certified Ethical Hacker (CEH), CompTIA Security+ CE, CompTIA Cloud+ CE, CompTIA Secure Cloud Professional (CSCP), and Cisco Certified Network Associate (CCNA). Committed to continuous learning and staying updated on emerging technologies to provide cutting-edge solutions.

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Expertise

  • IT Infrastructure Management
  • Cybersecurity Knowledge
  • Technical Troubleshooting
  • Network Security
  • Firewall/Router Configuration
  • System Administration

Experience

U.S Army

Senior Network Communication System

May, 2021 - Present

  • Supervised and led teams in the installation, operation, and field-level maintenance of commercial and tactical fiber, cabling, and wiring systems.
  • Coordinated remote trunking operations and updated line route maps, overlays, and network diagrams.
  • Managed IP-based high-speed nodal systems, integrated network control centers, and multiplexing/subscriber interface equipment.
  • Operated multichannel line-of-sight systems, tropospheric scatter communication systems, and tactical satellite communication terminals.
  • Implemented network operations center changes to support dynamic mission requirements.
  • Managed COMSEC devices and ensured proper operation of secure communication equipment.
  • Requested and coordinated logistical support for team operations and shifts.

    • U.S Army

    Network Communication System Specialist

    May, 2021 - Octuber, 2023

  • Maintain all LAN/WAN/VPN network hardware and software, security systems and communication links.
  • Manages all clients network LAN/WAN hardware including routers, switches, load balancers and wireless networking equipment.
  • Supervises the installation, operation, deployment, provisioning, and maintenance of WIN-T nodal assemblages, combat NET radios and all related COMSEC devices.
  • Disseminates network orders, compiles, and gives operational statistics reports and processes requests for logistic support.
  • Performs network management functions in support of maintaining, troubleshooting and reconfiguring nodal assets as needed in support of operational requirements.
  • Maintains over $100,000 in bench stock and spare parts.

    • CAYAGO Americas Inc.

    Electronic Technician

    June, 2020 - May, 2021

  • Diagnosed and repaired electrical and mechanical issues in Seabob water scooters, ensuring optimal functionality and performance for safe underwater operation.
  • Conducted systematic testing of propulsion systems, battery packs, and control modules, utilizing diagnostic tools to accurately identify and resolve malfunctions.
  • Performed routine maintenance and calibration of depth sensors, speed controls, and jet propulsion systems to meet manufacturer specifications and improve reliability.
  • Managed component replacements, including circuit boards, wiring, and battery systems, ensuring all parts complied with technical standards.
  • Documented repair processes, parts used, and technical issues for continuous improvement and enhanced troubleshooting accuracy.
  • Advised clients on proper Seabob usage and maintenance, providing guidance on battery care and operational limits to reduce equipment downtime.

    • Beckman Coulter

    Manufacturing Quality Technician

    March, 2019 - June, 2020

  • Conducted testing procedures during manufacturing processes to ensure that products comply with quality standards.
  • Install software, check ground continuity, monitor voltages, and temperature, and pressure.
  • Troubleshoot system boards, motor, solenoids, sensors, cable, and tubing connections.
  • Perform several types of tests to ensure the instrument specifi cations requirement are met.
  • Ensure all documentation along with all steps and procedures are followed during the process up to the fi nal phase.
  • All procedures are done in clean rooms and lab environments for precise control and monitoring.

    • Education

    Purdue Global University

    Bachelor of Science (B.S) in Cybersecurity

    Pursuing (Fall 2024)

    Skills Learned:
    Network Security, Cyber Defense, Ethical Hacking, Digital Forensics

    Miami Dade College

    Associate in Science (A.S) in Computer Engineering

    May, 2019

    Skills Learned:
    Computer Networks, System Administration, Programming Fundamentals

    Certifications

    Certified Ethical Hacker (CEH)

    September, 2024 - September, 2027
    Certification ID: ECC9831076524

    Skills Learned:
    Malware Analysis, Vulnerability Assessment, Ethical Hacking Methodologies

    CompTIA Secure Cloud Professional (CSCP)

    September, 2024 - September, 2027
    Candidate ID: COMP001022203443

    Skills Learned:
    Information Security Risks, Data protection, Regulatory Compliance

    CompTIA Security+ CE

    February, 2023 - February, 2029
    Candidate ID: COMP001022203443

    Skills Learned:
    Security Concepts, Risk Management, Security Architecture

    CompTIA Cloud+ CE

    September, 2024 - September, 2027
    Candidate ID: COMP001022203443

    Skills Learned:
    Cloud Architecture, Cloud Operations, Cloud Deployment

    Cisco Certified Network Associate (CCNA)

    April, 2024 - April, 2027
    Cisco ID No. : CSCO14621090

    Skills Learned:
    Routing and Switching, Network Fundamentals, LAN/WAN Technologies

    CCC Computer Specialist

    August 2018

    Skills Learned:
    Computer Maintenance, Hardware Repair, Software Troubleshooting

    CCC Microcomputer Install/Repair

    August 2018

    Skills Learned:
    Microcomputer Installation, Repair Techniques, System Configuration

    Skills

    • 85%
      System Administrator
    • 95%
      Cybersecurity Knowledge
    • 90%
      IT Infrastructure Management
    • 80%
      Helpdesk Administrator
    • 85%
      Leadership Skills
    • 85%
      Critical Thinking
    • 95%
      Technical Troubleshooting
    • 95%
      Attention to Details

    Tools

    • 90%
      Forensic Tools
    • 85%
      Network Monitoring
    • 80%
      Penetration Testing Frameworks
    • 85%
      Firewalls
    • 95%
      Password Managers
    • 90%
      Virtual Private Networks (VPN)
    • 85%
      Vulnerability Scanners
    • 90%
      IDS/IPS

    Get In Touch

    I love to hear from you. Whether you have a question or just want to chat about IT infrastructure, cybersecurity, or tech innovations. — shoot me a message.

    Reach me at

    yoansardina9724@gmail.com
    +1 (786) 486-5877

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