horizon jobs in San Diego

CyberSecurity Engineer III will design, deploy, and administer Secret and Top Secret infrastructure across on-premises and private cloud environments, managing VMware virtualization, RHEL/Windows systems, and network infrastructure. The role requires implementing security controls per NIST SP 800-53 and DISA guidelines, automating system builds and patching with Ansible and Jenkins, and remediating vulnerabilities using tools like Nessus and Splunk.…See more You'll collaborate across infrastructure, cybersecurity, and mission teams to maintain secure environments throughout development, accreditation, and operations, with five or more years of infrastructure engineering or systems administration experience required.

This is a senior infrastructure and cybersecurity engineering role requiring 10+ years of experience designing, administering, and securing hybrid/cloud infrastructure across Linux, Windows Server, containerized, and private cloud environments. The engineer will implement security controls aligned with NIST SP 800-53, DISA STIGs, RMF, and Zero Trust principles, support DevSecOps pipelines and CI/CD automation, and use scripting, configuration management, and Infrastructure as Code to streamline builds, patching, hardening, and compliance.…See more The role demands collaboration across cybersecurity, software, infrastructure, and mission teams to troubleshoot complex issues, improve security practices, and communicate technical risks and recommendations.

This role supports cybersecurity engineering and infrastructure security for enterprise, cloud, and classified environments. The engineer will manage vulnerability assessment, system hardening, patching, secure configuration, and DevSecOps pipeline integration across Linux and Windows Server platforms.…See more Responsibilities include compliance support (RMF, ATO, NIST SP 800-53, DISA STIGs), CI/CD security automation, containerized environment hardening, and infrastructure-as-code implementation. Strong technical depth in cloud platforms (AWS/AWS GovCloud), container orchestration, security tooling, and the ability to communicate complex technical and compliance issues to engineering and mission stakeholders are required.