patch-management 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.

The Information System Security Officer (ISSO) serves as a steward of classified and high-side information systems, ensuring security compliance and operational resilience in accordance with DoD and DCSA standards. The role involves executing Risk Management Framework (RMF) activities, pursuing Authorization to Operate (ATO) via eMASS, conducting vulnerability scanning with tools like Nessus, and maintaining compliance with NISP and federal requirements.…See more Responsibilities include hands-on system administration, security monitoring, patch management, data transfer operations, and collaborative work with industrial security teams to integrate technical and administrative controls. Success requires proven experience processing ATO packages, system administration skills, security compliance knowledge, and the ability to balance rigorous security controls with operational effectiveness.

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.

Information Systems Security Engineer II supporting DoD Ballistic Missile Defense C4I systems with cybersecurity engineering, vulnerability management, and Risk Management Framework activities. Responsibilities include implementing cybersecurity controls, conducting DISA STIG assessments, performing vulnerability scans with tools like ACAS and Nessus, managing patches, maintaining eMASS RMF artifacts, and coordinating remediation across Windows, Linux, Hyper-V, and network environments.…See more Must assess cybersecurity risk, document findings, and support system authorization while maintaining operational readiness in a DoD test, integration, and evaluation environment.

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.

Design, implement, and maintain secure DevSecOps automation frameworks and CI/CD pipelines across hybrid infrastructure, cloud, and application platforms. Develop Infrastructure as Code using Terraform, Ansible, ARM/Bicep, PowerShell, and Python to automate provisioning, configuration management, patching, and vulnerability remediation across Windows, Linux, VMware, and Azure environments.…See more Integrate security controls into deployment pipelines including vulnerability scanning, secrets detection, code scanning, and policy enforcement aligned with FFIEC, NCUA, CIS, and NIST standards. Partner across Infrastructure, Security, and Application Development teams to advance DevSecOps practices, container engineering, and secure cloud governance.