network-administration jobs in San Diego

Senior Network Specialist will install, configure, and support LAN, WAN, and Internet systems for a large DOD program. Responsibilities include routine testing and analysis of network facilities, monitoring network availability, troubleshooting performance issues, and performing maintenance.…See more Requires 6–10 years of networking experience (depending on education level), hands-on expertise with Cisco routers and switches, IPv6 and Layer 3 protocol knowledge, and ability to obtain and maintain a Secret or Top Secret clearance.

Lead Network Engineer responsible for directing network integration, system testing, troubleshooting, and documentation across cross-functional teams at a U.S. Navy enterprise scale.…See more Mentor junior network engineers, provide technical guidance on complex issues, and serve as primary technical advisor to government clients on system architecture and solution design. Must have 10+ years configuring and troubleshooting Cisco enterprise infrastructure, including Catalyst Center/SDA, SD-WAN, ISE, routing protocols (OSPF, IS-IS, BGP), and enterprise security technologies. Will drive Software-Defined Access, SDN, Zero Trust, and automation initiatives while holding Secret clearance.

Network Engineer supporting Navy AT/FP systems worldwide, responsible for engineering, configuring, and sustaining Juniper, Aruba, and Cisco networking equipment across shore facilities and data centers. Role involves end-to-end system lifecycle management including staging, integration, testing, and fielding of networked systems; implementing secure architectures aligned with RMF and STIGs; and conducting vulnerability remediation and compliance validation.…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 expertise with Juniper Junos OS, Aruba ArubaOS, and Cisco platforms including routing protocols, VLANs, VPNs, and ACLs.

Field/Base Network Engineer managing large technical teams and Navy-Marine Corps Intranet (NMCI) operations under the SMIT contract. Responsibilities include BAN/LAN/WAN network operations, troubleshooting, repair, installation, cabling, configuration, and COMSEC support; managing incident response, change management, and problem management initiatives.…See more Requires extensive operations/engineering leadership experience, working knowledge of large DoD enterprise network environments, and hands-on technical background in network architectures, fault diagnosis, and ITSM/DevSecOps. Physical role involving equipment installation, rack mounting, confined-space work, and site-based troubleshooting across multiple locations.

Network Engineer IV supporting Naval Information Warfare Center Pacific to engineer, configure, and sustain mission-critical networked systems for public safety ashore programs. You will design and deploy advanced network architectures using Cisco, Aruba, Juniper, and other platforms; implement security controls aligned with RMF and STIGs; and support end-to-end system lifecycle from integration through fielding and sustainment.…See more Requires DoD Secret clearance, CCNA/Juniper JNCIA or higher, Security+ CE minimum, 8+ years DoD/enterprise network engineering experience, and hands-on expertise with switching, routing, wireless, VPNs, and firewall technologies.

Design and own network security across Saronic's enterprise, on-premises, cloud, and maritime vessel communications infrastructure. Responsibilities include managing firewalls, segmentation, VPN/ZTNA, and wireless systems (Palo Alto, Cisco, Aruba); securing AWS VPC architecture in commercial and GovCloud; architecting secure vessel communications over cellular, RF, SATCOM, and mesh links with cryptographic key management; and building network observability and automation at scale.…See more Requires 5+ years of hands-on enterprise network security experience, production firewall and VPN operations, L3-L7 networking fundamentals, and the ability to obtain a U.S. security clearance.

This role provides technical and operational support for Advanced Tactical Data Link (ATDL) systems with emphasis on cryptographic integration, Communications Security (COMSEC), and network interoperability. Responsibilities include configuring and fielding secure communication systems, troubleshooting system and interoperability issues in lab and field environments, evaluating network architectures, and providing training to operators and maintainers.…See more The position requires minimum 2 years of hands-on experience with ATDL systems (Link 16, MIDS JTRS), COMSEC material handling, CMS processes, and an active Top Secret clearance with SCI eligibility.

The Navy Integrated Training Environment (NITE) Network Administrator operates, maintains, and troubleshoots network connectivity and infrastructure on the Navy Enterprise Tactical Training Network (NETTN) across multiple classification levels. Working in the Network Operations and Security Center (NOSC), the candidate will support WAN circuits, router and switch configurations, firewall ACLs, VoIP device registrations, cryptographic device configurations, and coordinate with Navy, DISA, and commercial providers for implementation and troubleshooting.…See more Responsibilities include maintaining Information Assurance compliance, IOS upgrades, network device configuration changes, and supporting remote sites in restoring network failures. The role requires technical expertise in LANs, WANs, VPNs, routers, switches, firewalls, and voice communication networks.

Senior Network Engineer with 8+ years of experience designing, implementing, and managing cloud networking solutions across AWS and Azure, including VPCs, hybrid connectivity, and cloud-native security controls. The role involves hands-on enterprise network infrastructure work with Cisco, Meraki, and Palo Alto technologies, along with network automation using Python and Ansible.…See more Responsibilities include troubleshooting complex network and security issues, optimizing performance using monitoring tools like ThousandEyes and Splunk, and managing identity/access controls via Cisco ISE.

As a Cybersecurity Systems Engineer, you will develop and implement security solutions to protect military infrastructure, performing risk and vulnerability assessments across networks, systems, and applications. You'll troubleshoot complex security challenges, manage Navy Risk Management Framework (RMF) and Assessment & Authorization (A&A) activities, and implement cybersecurity controls using tools like ACAS, STIGs, and eMASS.…See more The role requires 3+ years of DoD/government IT experience, expertise in operating systems (Windows, Linux), network infrastructure (routers, switches, firewalls, zero-trust), and compliance testing. You will communicate security findings to both technical and non-technical audiences while identifying advanced threats and supporting Navy missions.

Senior Network Engineer responsible for designing, developing, and maintaining complex network systems for Navy missions. Translate business requirements into technical network solutions, lead architecture and engineering efforts, and provide hands-on support for critical military infrastructure.…See more Required to manage network performance, quality of service, and ensure production-ready configurations across global networks. Bring 10+ years of network engineering experience with expertise in routing protocols, firewalls, cloud integration, and cybersecurity.

Senior Network Engineer supporting the US Navy to design, architect, and maintain production-ready network configurations for the Global Network. Responsible for translating business requirements into technical solutions, establishing KPI measurement methodology, performance tuning, and troubleshooting network infrastructure.…See more Requires hands-on expertise in Cisco routing and switching, advanced routing protocols (OSPF, BGP, DMVPN, MPLS/VPLS), QoS implementation, and packet analysis tools. Will report directly to government stakeholders, present at technical meetings, and support lab operations as a CMS Level 2 user.

Seneca Resources seeks a senior Network Engineer to provide hands-on engineering and operational support for a secure, on-premises research and test network environment in San Diego. The role involves day-to-day troubleshooting and maintenance of routers and switches, multi-cloud connectivity across AWS and Azure, routing protocols (OSPF, BGP), IPsec tunneling, and network security hardening with STIG compliance.…See more You will design and maintain NAC solutions, enterprise wireless infrastructure, and implement Zero Trust concepts like dynamic segmentation using tools such as HPE Aruba, Palo Alto, inMon Traffic Sentinel, and Zabbix. The position requires an Active Secret clearance, IAT Level II certification, a Master's degree in Computer Science or IT, and 10+ years of enterprise network engineering experience.

Senior Network Engineer to design, configure, and operate network infrastructure including switches, routers, and firewalls in support of the Joint Fires Network (JFN) program. Responsibilities include implementing SD-WAN solutions across sites and cloud environments, troubleshooting complex routing and switching issues, creating network security measures, and managing junior network engineers.…See more Required: 10+ years networking experience (or equivalent with lower degree), 4 years CANES firewall/network engineering, CCNA certification, proficiency in Python and Ansible, and deep knowledge of Cisco QoS, dynamic routing protocols (EIGRP, BGP, OSPF, HSRP, NHRP, GRE, DMVPN), and SDN/SD-WAN technologies.

Senior-Level Network Engineer supporting mission-critical government systems in a 100% onsite San Diego role. The position requires 10+ years of hands-on enterprise networking experience, including routing, switching, firewall configuration, and cloud connectivity (AWS/Azure).…See more Responsibilities span network architecture design, OSPF/BGP configuration, Palo Alto and HPE Aruba administration, NAC/802.1X implementation, Zero Trust deployment, performance monitoring, infrastructure testing, and DoD STIG compliance.

Senior Network Administrator supporting Naval Information Warfare Center Pacific, responsible for designing, securing, and maintaining complex DoD network environments. Will perform network engineering, hardware configuration (routers, switches, firewalls), performance monitoring, cloud connectivity (AWS/Azure), routing protocol management, and cybersecurity compliance including Zero Trust architectures.…See more Requires 10+ years of enterprise network experience, active Secret clearance, and DoD 8570/8140 IAT Level II certification plus Cisco certification (CCNA/CCNP/CCDP).

The Network Specialist provides operational support for DoD Defense Health Agency LAN/WAN infrastructure at Naval Medical Center San Diego, including daily troubleshooting of core and edge switches, resolving network and routing protocol issues across all OSI layers, and supporting routing, switching, firewall, and cabling equipment. The role requires expertise in TCP/IP, routing protocols, firewall/VPN technologies, and hands-on maintenance of LAN/WAN systems.…See more Candidates must hold a Bachelor's degree in a technical discipline plus 3 years of experience (or equivalent vocational certification plus 8 years), an active Secret clearance or higher, and Security+ CE certification with current CCNA or equivalent.

The Network Engineer, Systems will provide engineering, administration, and operational support for complex RDT&E and secure network environments supporting U.S. Navy initiatives.…See more Responsibilities include configuring and maintaining routing, switching, firewall, and boundary protection solutions (HPE Aruba, Palo Alto); monitoring network performance with enterprise tools (Traffic Sentinel, Zabbix); implementing network security solutions (NAC, ClearPass, 802.1X, Zero Trust, IPsec); and managing cloud connectivity across AWS and Azure. The role requires 10+ years of enterprise network engineering experience, hands-on expertise with OSPF, BGP, IPsec, VLANs, cloud networking, STIG compliance, and firmware lifecycle management. Required qualifications include a Master's degree in Computer Science or related field, active Secret Clearance, and IAT II Certification (Security+, CySA+, CCNA Security, GSEC, GICSP, or SSCP).

GEM Team seeks a fractional Network & Systems Administrator (1099, 3–4 days/week) to manage network, server, cloud, and security infrastructure for a financial services organization in San Diego. The role involves administering Cisco Catalyst, Meraki SD-WAN, Palo Alto firewalls, Microsoft 365, Entra ID, Active Directory, and Windows Server; troubleshooting across multiple locations; and partnering with IT leadership on infrastructure initiatives.…See more Required: 5+ years of network/systems/infrastructure administration experience, strong hands-on expertise in Cisco networking, Palo Alto firewalls, Microsoft identity and server platforms, and TCP/IP networking fundamentals. Preferred: financial services or regulated-industry experience and familiarity with Check Point Avanan and Arctic Wolf.