network-hardening jobs in San Diego

Systems Network Engineer II will design, configure, and troubleshoot Layer 2/3 networks, firewalls, VPNs, and network security controls in cloud and on-premises environments. The role requires strong foundational networking skills including TCP/IP, routing, switching, VLANs, and hands-on troubleshooting of connectivity and performance issues.…See more The engineer will document network topology, maintain security posture through hardening and access controls, and collaborate with cloud, cybersecurity, and infrastructure teams. Preferred experience includes cloud networking (AWS/Azure/GCP), Kubernetes/container networking, infrastructure automation (Terraform/Ansible/Python), and Zero Trust architecture.

Network Engineer supporting Navy AT/FP systems sustainment, responsible for engineering, configuring, and maintaining advanced networking hardware (Juniper, Aruba, Cisco) across NIWC Pacific and Naval installations worldwide. The role requires hands-on deployment, integration, and troubleshooting of networked systems in lab and field environments, with emphasis on secure architectures aligned with RMF and STIGs.…See more Candidates must hold an active interim Secret clearance with ability to obtain full adjudication, DoD 8570/8140 baseline certification, and 5+ years of experience (or 8+ with HS diploma) with demonstrated expertise in enterprise routing, switching, wireless, and firewall platforms.

Network engineer responsible for engineering, configuring, and sustaining mission-critical networked systems including Cisco, Aruba, Juniper, and Cambium platforms. Supports end-to-end system lifecycle from staging through sustainment, deploys and troubleshoots networks in labs, shore facilities, and data centers, and implements secure network architectures aligned with RMF and STIG standards.…See more Requires 8+ years of hands-on network engineering experience, DoD Secret clearance, and certifications such as Security+, CCNA/JNCIA or higher, with expertise in Layer 2/3 technologies, VPNs, firewalls, and wireless deployments.

Senior systems administrator responsible for managing installation, configuration, updates, monitoring, and troubleshooting of enterprise and tactical IT infrastructure. Lead security hardening efforts aligned with CMMC and DISA STIG standards, vulnerability remediation, backup/recovery procedures, and network infrastructure including routers, firewalls, and VPNs.…See more Provide technical leadership to teams of administrators and coordinate across cybersecurity, engineering, and program stakeholders. Support tactical data pipelines, containerized workloads, and edge server environments.

Senior systems administrator responsible for providing technical guidance and coordination across infrastructure, security, and engineering teams in a mission-focused environment. Will mentor administrators and end users, document technical solutions, and lead issue resolution across Windows/Linux systems, virtualization, networking, and cloud platforms.…See more Requires extensive experience in enterprise/government IT infrastructure, system hardening, cybersecurity compliance (CMMC, DISA STIG), and strong communication with technical and non-technical stakeholders.