network-infrastructure jobs in San Diego

The Cybersecurity Engineer II will design, engineer, and deploy cybersecurity and network defense solutions across complex DoD environments, with hands-on responsibility for SIEM, IDS/IPS, firewalls, and vulnerability management platforms. The role involves configuring Splunk Enterprise, conducting network and security analysis with tools like Wireshark and Tenable, and leveraging automation and APIs to improve security operations.…See more The engineer will support DoD Computer Network Defense requirements, integrate solutions across Windows, Linux, and network infrastructure, and collaborate with government and vendor teams throughout acquisition, testing, and deployment. The position requires 5–7+ years of hands-on cybersecurity and network defense experience, a Bachelor's degree in a related technical field, and an active U.S. national security clearance.

This role provides IT risk management and cybersecurity oversight for a large, multi-location enterprise environment. Key responsibilities include triaging security alerts and IOCs, conducting IT security audits (network, OS, data center), administering Microsoft 365 Defender for Cloud and endpoint protection platforms, managing vulnerability assessments, and assisting with cloud migrations to Azure and Microsoft 365 services.…See more The role requires 5+ years of IT experience in large environments, IT audit experience, Security+ or Cloud+ certification, and hands-on administration of Active Directory, SIEM tools, and service-desk ticketing systems.