system-hardening jobs in San Diego

As a Network Engineer supporting Naval Information Warfare Center Pacific, you will engineer, configure, and sustain enterprise-grade networked systems (Juniper, Aruba, Cisco, Cambium) across Navy installations worldwide. You will manage the full system lifecycle from staging and integration through fielding and sustainment, implement secure network architectures aligned with RMF and STIGs, and deploy networks in labs, shore facilities, and field environments.…See more The role requires hands-on expertise in Layer 2/3 technologies, routing protocols, VPNs, wireless deployments, and vulnerability remediation, with 50%+ travel to support CONUS and OCONUS operations.

The Windows & Linux System Administrator will administer and maintain Windows 11 and Red Hat Enterprise Linux (RHEL) systems in secure DoD environments, develop PowerShell and Bash automation scripts, and support infrastructure engineering initiatives. The role requires ensuring compliance with DISA security requirements through STIG implementation, patch management, and system hardening, while utilizing Ansible for automation across secure networks.…See more Candidates must have 3+ years each administering Windows and RHEL systems, experience with the IAVM process, and hold an active Secret clearance with IAT Level II certification.

Network Engineer responsible for designing, configuring, and sustaining mission-critical networked systems including Cisco, Aruba, Juniper, Cambium, and Antaira equipment. The role spans end-to-end lifecycle activities: staging, integration, testing, fielding, and sustainment of networks in labs, shore facilities, and data centers.…See more Requires hands-on expertise in Layer 2/3 technologies, routing protocols (OSPF, BGP), VPNs, firewalls, and wireless deployments, with mandatory compliance to RMF and STIGs. Must hold or obtain a DoD Secret clearance and meet DoD 8570/8140 baseline certification (Security+, CISSP, CASP+, or higher) plus vendor certifications (JNCIA/CCNA or higher).

As a Network Engineer supporting Naval Information Warfare Center Pacific, you will engineer, configure, and sustain advanced networking equipment (Juniper, Aruba, Cisco) across Navy installations worldwide. You will design secure network architectures, implement RMF and STIG compliance, manage VLANs/routing/VPNs, support wireless deployments, and conduct site surveys and integration testing with 50%+ travel.…See more You must hold an active DoD Secret clearance, meet DoD 8570/8140 certification requirements (Security+ minimum), and have 8+ years of DoD or enterprise network engineering experience with hands-on expertise in Juniper, Aruba, and Cisco platforms.

As a Network Engineer supporting Naval Information Warfare Center Pacific, you will engineer, configure, and sustain advanced networking equipment (Juniper, Aruba, Cisco, Antaira, Cambium) across Navy installations worldwide. You will support the full system lifecycle—staging, integration, testing, fielding, and sustainment—of networked systems protecting mission-critical assets, implementing secure architectures aligned with RMF and STIGs, and conducting site surveys and operational verification testing during frequent travel (50%+).…See more The role requires hands-on expertise in Junos OS, ArubaOS, Cisco platforms, routing protocols (OSPF, BGP), VLANs, VPNs, firewalls, and vulnerability remediation, with a DoD 8570/8140 baseline certification and an active interim Secret clearance.

As a Network Engineer IV supporting Naval Information Warfare Center Pacific, you will engineer, configure, and sustain advanced Cisco, Aruba, Juniper, and other enterprise networking equipment for Navy Public Safety Systems. You will support the full system lifecycle—staging, integration, testing, fielding, and sustainment—across NIWC labs, shore facilities, and deployed environments.…See more Responsibilities include implementing secure network architectures aligned with Risk Management Framework (RMF) and Security Technical Implementation Guides (STIGs), performing system hardening and vulnerability remediation, and maintaining configuration baselines and technical documentation. You must hold or obtain a DoD Secret security clearance, possess DoD 8570/8140 baseline certification (Security+ CE minimum), and have 8+ years of hands-on network engineering experience with Juniper, Aruba, and Cisco platforms.

Network Engineer supporting the Global Sustainment Contract at Naval Information Warfare Center Pacific, responsible for engineering, configuring, and sustaining advanced networking equipment (Juniper, Aruba, Cisco, Antaira, Cambium) across Navy installations worldwide. The role encompasses end-to-end system lifecycle support including staging, integration, testing, fielding, and sustainment; deployment and troubleshooting in labs, shore facilities, and data centers; and implementation of secure network architectures aligned with Risk Management Framework (RMF) and Security Technical Implementation Guides (STIGs).…See more Requires 8 years of network engineering experience, active DoD Secret clearance, and DoD 8570/8140 baseline certification (Security+ CE minimum or higher such as CISSP or CASP+), with hands-on expertise in Juniper (Junos OS, EX/QFX/SRX), Aruba (ArubaOS, Instant AP, Aruba Central), Cisco (Catalyst, ISR, ASA, Firepower), and core networking technologies including Layer 2, routing protocols (Static, OSPF, BGP), VPNs (IPSec), ACLs, and firewalls.

As a Linux Systems Automation Engineer, you will engineer and deploy critical infrastructure across Red Hat Enterprise Linux (RHEL) platforms for a government client, supporting national defense missions. You will design enterprise-scale monitoring and automation solutions, develop Python scripts and Ansible configurations for automated provisioning and compliance, and manage virtualized environments (KVM, QEMU, Proxmox) and containerized workloads.…See more Key responsibilities include maintaining system security through STIG implementation and hardening, performing vulnerability scanning and remediation, and authoring technical documentation. You must have 5+ years of RHEL administration experience, 3+ years of Python automation expertise, security compliance knowledge, and a 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.

The Cybersecurity Engineer II will perform system hardening on Windows and Linux systems per DoD standards, implement and maintain STIGs, conduct vulnerability assessments using ACAS, and remediate security findings. The role requires 5 years of hands-on experience with STIG implementation, vulnerability assessment tools, vendor patching, and security compliance initiatives.…See more A Bachelor's degree in Cybersecurity or related field plus one or more certifications (CCNA, CySA+, GICSP, GSEC, Security+, or SSCP) and an active Secret clearance are required.

Senior Software Engineer role developing virtualization infrastructure for Navy anti-submarine warfare training systems. Responsibilities include designing and deploying virtualized Linux environments using KVM and Open vSwitch, migrating hardware-based solutions to scalable virtualized platforms, developing Python automation scripts and Ansible configurations, and troubleshooting complex networking and systems issues in DoD training environments.…See more Requires strong Linux systems engineering expertise, virtualization proficiency, and deep understanding of low-level networking in mission-critical contexts.

This role performs system hardening, vulnerability management, and STIG implementation across Windows and Linux systems in compliance with DoD cybersecurity standards. The Cybersecurity Engineer II will conduct vulnerability assessments using ACAS, analyze and remediate security findings, apply patches and updates, and support compliance and continuous monitoring activities.…See more The position requires a Bachelor's degree in Cybersecurity or related field, one or more IAT Level II certifications (CCNA, CySA+, GICSP, GSEC, Security+, or SSCP), and 5 years of demonstrated hands-on experience in system hardening and vulnerability remediation in DoD environments.