Senior System Administrator

Senior System AdministratorInversion builds advanced reentry systems to deliver next-generation capabilities from space. Our mission is to make Earth radically more accessible by turning Low-Earth Orbit into an on-demand logistics domain. We see space not as a destination, but as a platform — one that unlocks unprecedented speed and global reach. Our spacecraft are designed to deliver payloads anywhere on Earth in under an hour, operating through extreme reentry conditions and landing with high precision. These systems open the door to new ways of testing, delivering, and operating at hypersonic speeds. Inherently dual-use, our technology is built to meet urgent national security needs while laying the groundwork for future commercial applications. Backed by leading investors including Y Combinator, Spark Capital, and Lockheed Martin Ventures, and working with partners such as the U.S. Space Force and NASA, Inversion is pushing the boundaries of what's possible in space-based defense and logistics.OverviewWe are seeking an experienced System Administrator to support mission ? critical IT infrastructure within a defense contracting environment. The ideal candidate will bring strong technical expertise in cloud technologies relevant to a regulated environment. Having a strong comprehension of security, compliance, and operational requirements common to defense and government settings.Key ResponsibilitiesManage cloud services (AWS, Azure, or GCP) including provisioning, monitoring, and cost control aligned with program requirements.Experience managing, maintaining, and optimizing Windows and Linux (RHEL preferred) environments.Experience with containerized environments i.e. Docker and KubernetesConfigure, maintain, and secure network devices, firewalls, VPNs, and segmented networks used in controlled environments.Conduct system patching, updates, hardening, and continuous monitoring to meet security and compliance standards.Implement and maintain technical controls aligned with frameworks commonly used in defense contracting (e.g., ITAR, NIST, DFARS)Assist with identity and access management, including privileged access workflows.Troubleshoot system, network, and application issues to ensure continuity of operations.Support disaster recovery planning, contingency procedures, and backup strategies required for mission assurance.Collaborate with security, compliance, and engineering teams to ensure system readiness and adherence to program requirements.Required Skills and Qualifications5 plus years of experience in comparable environmentsProfessional experience supporting systems within defense, federal, or other highly secure environments.Expertise in virtualization technologies and cloud platforms.Strong knowledge of networking protocols, routing, switching, and secure network design.Understanding of cybersecurity principles, secure configuration, and compliance standards common in defense contracts.Proficiency in Windows and Linux administration.Strong analytical, troubleshooting, and documentation skills.Ability to work within structured processes and controlled change environments.Must have the ability to obtain and maintain a U.S. government Secret/Top Secret security clearance.Preferred QualificationsExperience supporting systems tied to government programs or regulated technical environments.Familiarity with automation tools such as PowerShell, Bash, Ansible, or Terraform.Relevant certifications such as AWS Dev Ops, AWS Solutions Architect, Google Professional Cloud Architect, Azure DevOps, Azure Solutions Architect.Relevant security certifications would be a plus.Our office headquarters is located in Playa Vista, CA. This position requires in office presence.