firewalls jobs in San Diego

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.

Senior Manager leading cloud security architecture and strategy across AWS, Azure, GCP, and Oracle Cloud for consulting engagements. Oversees technical assessments, solution designs, and security implementations including CNAPP, CSPM, CWPP, IAM, and DevSecOps controls.…See more Manages onshore and offshore delivery teams, mentors practitioners, and contributes to business development and thought leadership. Requires 6+ years in cloud security consulting, 2+ years designing enterprise cloud security architectures, and 3+ years with cloud-native security technologies.

This Systems Administrator II role supports containerized and cloud-based infrastructure for a defense-focused technology company. The administrator will maintain system documentation, configuration records, software inventories, and license tracking while supporting both Windows and Linux environments, networking infrastructure, and cybersecurity hardening.…See more Required experience includes Linux command-line proficiency, system configuration and troubleshooting, networking protocols (TCP/IP, DNS, DHCP, VPNs, firewalls), and cybersecurity practices. Preferred qualifications include containerization technologies (Docker, Kubernetes), edge computing hardware, cloud platforms (AWS, Azure), shell scripting, and tactical systems support.

The Network Engineer, Systems will provide engineering, administration, and operational support for complex enterprise and cloud-based network environments supporting U.S. Navy RDT&E initiatives.…See more Responsibilities include configuring and troubleshooting routing, switching, firewalls, and security solutions; monitoring network performance; managing cloud connectivity across AWS and Azure; and ensuring STIG compliance. The role requires 10+ years of enterprise network engineering experience, hands-on proficiency with Cisco/Aruba/Palo Alto platforms, routing protocols (OSPF, BGP, IPsec), cloud networking, and Zero Trust architectures. An active Secret Clearance and IAT II certification (Security+, CCNA Security, GSEC, CySA+, GICSP, or SSCP) are required.

This entry-level role supports the build, assembly, configuration, and testing of C4ISR network and communication equipment racks for Navy production environments. The engineer performs hands-on technical tasks including rack assembly, cable fabrication, component installation, software loading, basic device configuration (VLANs, IP addressing, routing), and functional testing under senior engineer guidance.…See more The position requires foundational networking knowledge (TCP/IP, routing, switching, VLANs), basic experience with Cisco or Juniper devices, ability to read technical diagrams, and troubleshooting skills using tools like ping, traceroute, and Wireshark. Candidates should have an Associate's or Bachelor's degree in IT/Network Engineering or equivalent military technical training, plus 3–7 years of network engineering or IT support experience; CCNA, Network+, or Security+ certification is preferred.

Senior Engineer responsible for maintaining and managing enterprise networking infrastructure, including Cisco Catalyst routers/switches, wireless controllers, firewalls, and VPN tunnels. The role requires hands-on expertise in network analysis tools (Wireshark, AirMagnet), x509 certificate management, and troubleshooting IPv4/IPv6 protocols.…See more Candidates must have 5+ years of experience across multiple areas including Cisco/Aruba wireless controllers, firewalls (ASA, PAN, SRX), Active Directory, virtualization platforms (VMware, Hyper-V), and Windows/SQL Server administration.

Senior Infrastructure & Security Engineer responsible for administering and securing Microsoft 365, Azure, and Entra ID environments, including identity controls, conditional access, and MFA enforcement. The role encompasses data protection through DLP policies and Microsoft Purview, endpoint security via CrowdStrike, Windows Server and Active Directory infrastructure, virtualization (VMware, Azure), backup/disaster recovery, and establishing governance standards for AI platforms.…See more Requires 7+ years of progressive IT infrastructure and security experience with strong expertise in Microsoft cloud services, identity management, and enterprise networking.

SAIC seeks a Principal Cybersecurity Engineer to design, implement, and maintain secure identity, cryptographic, and network infrastructure for classified Navy DoD systems. The role involves planning and executing penetration tests and red team exercises against classified systems, performing network traffic analysis with Wireshark, architecting air-gap systems and data diodes, hardening IT and virtualized environments, and conducting vulnerability assessments aligned with DISA STIGs and DoD standards.…See more Required: 9+ years cybersecurity engineering, 5+ years hands-on experience in classified/high-security environments, proven penetration testing and red team experience, and deep knowledge of DoD/IC security frameworks (NIST RMF, DISA STIG, DoD CC SRG). Must hold an active TS/SCI clearance and be a U.S. citizen.

This Cybersecurity Engineer II role involves designing, engineering, integrating, testing, and deploying cybersecurity and network defense solutions across complex DoD environments. The position requires planning and executing National Security and Cybersecurity assessments, configuring enterprise tools such as Splunk Enterprise, IDS/IPS, firewalls, and vulnerability management platforms, and conducting network and security analysis using tools like Wireshark and Tenable.…See more The engineer will leverage automation, scripting, APIs, and generative AI to improve cybersecurity operations while supporting the full acquisition, integration, deployment, and sustainment lifecycle for DoD Computer Network Defense requirements.

Lead Information Assurance and security engineering for Navy tactical networks (CANES), managing end-to-end Risk Management Framework (RMF) authorization, hardening virtualized and cloud network stacks, and ensuring compliance across diverse naval environments. Develop and maintain security authorization artifacts (SSP, SAP/SAR, POA&M, ATO packages in eMASS), apply DISA STIGs and vulnerability management tools (ACAS, NESSUS, SCAP), and provide IA guidance for application integration aligned with DoDAF and Net-Ready KPP baselines.…See more Support developmental testing, audit response, and continuous monitoring while coordinating with PEO C4I, NIWC Pacific, and Fleet stakeholders. Mentor junior engineers and champion DevSecOps and STIG automation practices.

Lead a team of network engineers designing and maintaining enterprise SD-WAN and software-defined networking solutions for Naval tactical networks. Provide Tier IV network support, perform network architecture design and system operational analysis, troubleshoot outages, and develop automated configuration management solutions.…See more Collaborate with cybersecurity, engineering, QA, and operations teams to meet enterprise migration, data center, and remote access requirements while supporting global critical security missions.

This role is a hands-on cybersecurity engineer responsible for securing cloud infrastructure (AWS, Azure, GCP), containerized environments (Docker, Kubernetes), and applications. Key duties include vulnerability scanning and penetration testing, threat modeling, Web Application Firewall (WAF) deployment and tuning, CI/CD security integration (SAST, DAST, SCA), incident response, and compliance support.…See more The engineer will work closely with DevOps and application teams to embed security controls, conduct code and architecture reviews, and provide risk-based guidance. Required experience includes 3–5+ years in cybersecurity or security engineering, hands-on SIEM/EDR/vulnerability management tools, cloud platforms, WAF configuration, and scripting (Python, Bash, PowerShell).

Sr. Systems Administrator responsible for daily operational management of computer network systems including workstations, file servers, and virtual machines.…See more Duties include installation and maintenance of hardware/software, network security tools (firewalls, anti-virus, intrusion detection), VMware/vSphere environments, storage solutions, and disaster recovery infrastructure. Requires 5+ years systems administration experience, 3+ years network engineering with 2+ years cloud architecture, and must hold or obtain a Top-Secret DoD security clearance. Will create technical documentation, troubleshoot vCenter/ESXI/NSX/storage systems, perform capacity planning, and manage containerized deployments.

As an information security risk specialist, you will assess cyber risks for DoD acquisition programs by analyzing threat landscapes, conducting risk and vulnerability assessments across networks, systems, and applications, and developing mitigation plans. You will leverage 4+ years of IT experience and 3+ years of Navy RMF/A&A project leadership to translate complex security concepts into actionable strategies for mission-critical systems.…See more Key responsibilities include developing and maintaining RMF artifacts, managing eMASS workflows, creating Authorization Boundary and Data Flow Diagrams, conducting compliance assessments using industry-standard tools, and communicating technical findings to both technical and non-technical stakeholders.

As a Cybersecurity Engineer and Risk Analyst, you will develop and implement security solutions to protect military infrastructure, performing vulnerability and compliance assessments using industry-standard tools like eMASS and ACAS. You'll troubleshoot complex security challenges, assess network and system threats, implement infrastructure controls, and communicate security risks to both technical and non-technical audiences.…See more The role requires 3+ years of experience leading Risk Management Framework (RMF) activities for DoD projects, vulnerability scanning, and security control implementation. You'll work closely with Navy missions to identify cyber risks, recommend solutions, and provide hands-on support using your knowledge of cybersecurity policy, networks, system infrastructure, and risk management.

As an information security risk specialist, you will work with DoD acquisition programs to identify cyber risks, assess threat landscapes, and develop mitigation strategies. You will conduct risk and vulnerability assessments across networks, systems, and applications, translate security concepts for stakeholders, and manage RMF (Risk Management Framework) and A&A (Assessment and Authorization) activities.…See more You need 4+ years of IT systems experience with DoD/government agencies, 3+ years leading Navy RMF projects, and expertise in security policy implementation, compliance assessment, and vulnerability mitigation. A Secret clearance and DoD 8140 Certification are required.

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.

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.

Lead senior systems engineer on the EC2 NX Platforms team to design and optimize the packet processing pipeline powering EC2 instances across AWS's global fleet. Drive ultra-high-performance networking software handling millions of packets per second through expert C/C++ development, low-level hardware tuning, and data structure optimization.…See more Own architecture decisions, mentor junior engineers, and ship production code across EC2 and Lambda with full ownership from design through operation. Collaborate with cross-functional teams to implement Software Defined Networking (SDN) capabilities that enhance security, availability, and reliability.

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.