network-administration jobs in San Diego

Senior Network Engineer to design, build, and operate critical network infrastructure for cloud, AI/GPU, and high-performance computing environments. Responsibilities include managing multi-homed internet edge networks with BGP/eBGP, designing high-availability architectures with redundant firewalls and load balancing, deploying InfiniBand/GPU networks, automating configuration with Python/Ansible, and leading incident response.…See more Requires 7+ years of network engineering experience, strong BGP and TCP/IP expertise, hands-on work with Cisco/Arista/Fortinet platforms, and network automation skills.

A senior network engineer role focused on designing, developing, and maintaining complex network systems for Navy missions. The role requires 10+ years of hands-on experience with routing, switching, firewalls, and protocols (OSPF, BGP, MPLS), plus expertise in NIPR/SIPR networks, WLAN, and quality-of-service tuning.…See more Responsibilities include translating business requirements into network architectures, leading technical solutions, performance optimization, and direct stakeholder engagement on mission-critical infrastructure.

ManTech seeks a Systems Administrator to maintain critical enterprise infrastructure for national security operations in San Diego, supporting the 0100–0900 morning shift. The role requires administering Windows servers, domain controllers, cloud resources, and VMware environments; configuring and troubleshooting KG-175 (TACLANE) cryptographic network encryptors; performing vulnerability remediation with ACAS/Nessus; and executing rapid incident response and site outage troubleshooting.…See more Candidates must have 4+ years of enterprise Windows infrastructure experience (AD, DHCP, DNS, GPO, WSUS), hands-on TACLANE configuration expertise, and DoD 8570 IAT Level II compliance (Security+ CE or equivalent). The position includes up to 25% travel (CONUS/OCONUS) and requires an active Top Secret clearance with SCI eligibility.

The OT Security Engineer will conduct vulnerability assessments in industrial SCADA/ICS environments, using specialized tools like Nozomi, Claroty, and Tenable.ot to identify risks in PLCs, HMIs, and OT networks. Responsibilities include performing asset discovery, risk assessment, and security scanning, then providing remediation recommendations to engineering teams.…See more The role requires hands-on knowledge of OT network protocols, segmentation, firewalls, and industrial cybersecurity practices, with regular onsite collaboration with operational technology and engineering staff.

Network engineer responsible for engineering, configuring, and sustaining mission-critical networked systems including Cisco, Aruba, Juniper, and Cambium platforms. The role spans end-to-end system lifecycle activities—staging, integration, testing, fielding, and sustainment—with emphasis on secure network architecture, compliance (RMF, STIGs), vulnerability remediation, and hands-on field deployment.…See more Requires 8+ years of DoD or enterprise network engineering experience, hands-on expertise with Juniper Junos OS, Aruba switching/wireless, Cisco switching/routing/firewalls, and DoD 8570/8140 certification (Security+ minimum). Involves frequent travel (50%+) to customer sites, shipboard environments, and remote troubleshooting.

Support implementation of a Cisco-based E911 emergency call routing solution at a federal medical facility. Audit and document port-level details across existing Brocade/Ruckus switches, map switch port data to Emergency Response Locations (ERLs), and validate documentation through site walkthroughs.…See more Coordinate with Cisco engineers and facility stakeholders to ensure accurate location data for government submission. Requires hands-on switch administration experience, active Secret clearance, and Security+ certification.

The Network Engineer IV delivers advanced afloat C4ISR network engineering, integration, and sustainment for the Navy's carrier training tactical system within the CANES architecture. The role maintains, configures, and troubleshoots ruggedized network hardware and software baselines while providing hands-on technical support to shipboard ITs and NIWC Pacific during Fleet training events, readiness exercises, and deployment workups.…See more Responsibilities include system updates, patching, baseline management, virtualization support, enclave routing, cybersecurity compliance (STIG application, HBSS/ACAS remediation, Zero Trust hardening), and functional/performance testing with documentation of findings. The engineer must hold or obtain a Secret clearance, possess CCNA/CCNP and DoD 8570 IAT Level II (Security+), and have 3–5 years of network engineering experience with preferred expertise in Ansible, Python, Bash, PowerShell, and DevSecOps automation.

Network Engineer to design and develop Navy network topologies, templates, and IP plans, with hands-on experience in SDN/SD-WAN configuration, L2/L3 switching, routing, and security appliances. The role requires six+ years supporting DoD/federal IT systems engineering, CCNP certification, and active Secret clearance.…See more Candidates should demonstrate expertise in network documentation, troubleshooting, and stakeholder engagement across Navy programs.

Mid-level cyber engineer responsible for planning, implementing, and managing security measures protecting DoD data, systems, and networks. Will troubleshoot security and network problems, respond to breaches, test for vulnerabilities, implement IA controls compliant with DoD RMF, and ensure appropriate security controls are enabled.…See more Requires 6–8 years of hands-on cyber/IT experience, in-depth Linux and virtualized systems knowledge, firewall configuration and troubleshooting, network security protocols, and DoD IA/RMF frameworks. Must hold DoD 8570 IAT Level 2 certification and an active Secret clearance.

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.

Network Engineer supporting Navy AT/FP systems at NIWC Pacific, responsible for engineering, configuring, and sustaining advanced networking equipment (Juniper, Aruba, Cisco) across shore facilities and data centers worldwide. Design and implement secure network architectures compliant with RMF and STIGs, perform system hardening and vulnerability remediation, and support end-to-end lifecycle from staging through sustainment.…See more Requires active interim Secret clearance with ability to obtain full adjudication, bachelor's degree plus 5 years experience (or HS diploma plus 8 years), DoD 8570/8140 baseline certification, and hands-on expertise in Juniper Junos OS, Aruba switching/wireless, Cisco switching/routing/firewalls, Layer 2/3 protocols, and mission-critical system support.

Network Engineer supporting Navy AT/FP systems worldwide, responsible for engineering, configuring, and sustaining Juniper, Aruba, and Cisco network platforms across shore facilities and data centers. Role requires hands-on expertise in network design, integration, testing, and lifecycle sustainment, with emphasis on secure architectures, RMF compliance, system hardening, and vulnerability remediation.…See more Candidate must hold an active interim Secret clearance with ability to obtain full Secret adjudication, travel 50%+ to CONUS/OCONUS sites, and support mission-critical networked systems protecting Navy installations from security threats.

Network Engineer III supporting a Navy C4I Messaging program, requiring 6–8 years of hands-on experience with LAN/WAN protocols (TCP, UDP, OSPF, BGP, LISP, GRE), virtualized network infrastructure (VMware, VLANs, routing), Type 1 network encryption (IPSec), and security tools (Wireshark, LANScope). Must hold or be able to obtain a Top Secret clearance, possess Security+ and CCNA IAT certifications, and have experience with Juniper and Fortigate firewalls.…See more Desired experience includes tactical messaging systems such as C2OIX, NMHS, NAVMACS, Nova, and NIXT.

As Principal Network Engineer reporting to the Director of Engineering & Technology, you will develop network architectures for tactical and enterprise systems, implementing security protocols (HAIPE, IPsec, TLS) and dynamic routing (OSPF, EIGRP, BGP, MANET). You'll oversee multi-million-dollar programs with rigorous technical baselines, mentor cross-functional engineering teams, translate customer requirements into system designs, and serve as the technical voice in executive and customer engagements.…See more Key responsibilities include WAN/LAN/WLAN design, DoD RMF compliance, emerging technology adoption (AI-enabled orchestration, zero-trust), and strategic roadmap development.

Network Engineer role supporting Department of Warfare enterprise and tactical network infrastructure. Responsibilities include designing, deploying, integrating, and troubleshooting complex network systems; configuring enterprise routing, switching, security, and SDN technologies; and developing network automation using Ansible.…See more Requires 3+ years implementing enterprise/tactical networks, hands-on experience with routing protocols (OSPF, BGP), firewalls, VMware NSX, and network automation; Secret clearance required.

Design, integrate, troubleshoot, and modernize enterprise network infrastructures supporting Department of Warfare missions. Configure and optimize routing, switching, VLANs, firewalls, and SDN technologies; develop network automation using Ansible; and perform integration, testing, and validation in cross-functional engineering teams.…See more Requires 3+ years of enterprise or tactical network infrastructure experience, hands-on expertise with Cisco/Aruba/Juniper platforms, network security technologies, and VMware NSX.

As a Network Engineer on the IT Infrastructure team, you will design, build, and maintain NASSCO's enterprise network hardware and software, including routers, switches, and firewalls. You'll configure and troubleshoot network components, manage policies and segmentation, monitor system metrics using tools like SolarWinds, and document network designs.…See more The role requires expert-level knowledge of routing protocols, TCP/IP, security requirements, and hands-on troubleshooting, with 7+ years of experience and CCNP-level expertise.

Network Engineer supporting Navy AT/FP systems, responsible for engineering, configuring, and sustaining Juniper, Aruba, Cisco, and specialized networking equipment across shore facilities and deployed environments. The role involves end-to-end system lifecycle support including staging, integration, testing, fielding, and sustainment; implementation of secure architectures compliant with RMF and STIGs; and hands-on site surveys and system installs with 50%+ travel.…See more Requires active Interim Secret clearance with ability to obtain fully adjudicated Secret; DoD 8570/8140 baseline certification (Security+ CE or higher); and 5+ years of experience with hands-on expertise in Juniper Junos OS, Aruba ArubaOS/wireless, and Cisco platforms.

This role supports the design and engineering of U.S. Navy networks, including developing network topologies, IP plans, and SD-WAN solutions.…See more The Network Engineer will configure L2/L3 switches, routers, and security appliances, create test plans and technical documentation, and troubleshoot network outages. The position requires 6+ years of DoD/government IT systems engineering experience, a Bachelor's degree in Engineering or Computer Science, CCNP certification, and an active DoD Secret clearance. The ideal candidate has hands-on experience with SDN/SD-WAN platforms (VMware NSX-T, Cisco, Juniper), network automation (Python, Ansible, NETCONF), and RF communications technologies.

Senior Network Engineer responsible for designing, operating, and securing enterprise-grade wired and wireless networks across San Diego International Airport. Diagnose and resolve complex network issues through root cause analysis, lead infrastructure projects, and manage disaster recovery and compliance initiatives including vulnerability assessments and penetration testing.…See more Develop comprehensive network documentation, architecture designs, and standard operating procedures. Participate in on-call rotation supporting critical network operations and frequently access airfield facilities.

GALT Aerospace seeks a Systems Engineer, Integration and Test to support integration and testing of networked communication systems, with day-to-day responsibilities including developing test plans and procedures, configuring systems for prototypes, installing and maintaining Windows/Linux servers, managing DNS/Exchange/Active Directory, deploying network infrastructure (switches, firewalls, servers), and troubleshooting network problems. The role requires 4+ years in testing, networking, or IT; proficiency in Linux and Windows; knowledge of routing, switching, VLANs, IP subnetting, and DoD computer/radio systems; and understanding of automation and implementation.…See more Preferred qualifications include network security devices, event management systems, Tactical Data Link, military communications experience, Python/JavaScript scripting, containerization, Ansible, and Agile/Scrum methodologies.

As a Network Engineer supporting Navy installations, you will engineer, configure, and sustain advanced networking equipment (Juniper, Aruba, Cisco) across NIWC Pacific and shore facilities. You'll manage the complete system lifecycle from staging through sustainment, implement secure network architectures aligned with RMF and STIGs, and support both lab and field deployments with 50%+ travel.…See more The role requires hands-on expertise with routing protocols, VLANs, VPNs, firewalls, and wireless deployments, along with DoD 8570 baseline certification and an active Secret clearance.

This is an Enterprise Architect role within Naval Information Warfare Systems Command responsible for designing, evaluating, and securing enterprise network architectures at an advanced proficiency level. The incumbent will conduct vulnerability scans and configuration analyses, integrate cybersecurity requirements across acquisition lifecycle phases, and oversee the security posture of large-scale DoD information systems.…See more The role requires a minimum of one year of specialized experience at the GS-12 equivalent level and mandates obtaining and maintaining DoDM 8140.03 Cyber Workforce qualifications.

Network engineer providing advanced engineering, integration, and sustainment support for Navy AT/FP systems across global installations. You will engineer, configure, and sustain Juniper, Aruba, Cisco, and Antaira networking equipment; deploy and troubleshoot networks in labs, shore facilities, and data centers; implement secure network architectures aligned with RMF and STIGs; and conduct site surveys and operational verification testing during 50%+ travel.…See more Requires active interim Secret clearance with ability to obtain fully adjudicated Secret clearance, bachelor's degree plus 5 years experience (or HS diploma plus 8 years), DoD 8570/8140 baseline certification (Security+ CE or higher), and hands-on experience with Juniper, Aruba, and Cisco platforms.

Hands-on technical lead role managing data center operations at Naval Base Point Loma, supporting mission-critical infrastructure. Responsibilities include coordinating rack and stack activities, hardware installations and decommissioning, structured cabling, LAN/WAN/BAN infrastructure projects, and troubleshooting operational issues.…See more Requires active Secret clearance, IAT Level II certification, and 5+ years of data center operations or network infrastructure experience. Preferred experience with Cisco and Juniper equipment, VMware/vSphere, and Windows-based environments.