Systems Administrator; TS​/SCI + Poly

How We're Different
We believe the highest‑impact work in national security and technology is a team sport. At Aperio Global, we operate as a single, cohesive force aligned on a handful of mission‑critical efforts where our work truly moves the needle. We don’t chase small wins. We solve for next.

Aperio Global is seeking an experienced Systems Administrator to support a mission‑critical enclave environment consisting of both physical and virtual infrastructure. This role is ideal for someone who thrives in a hands‑on operational environment and enjoys owning the health, security, and performance of complex systems that directly support critical mission operations.

As a key member of a small, highly collaborative team, you will be responsible for maintaining secure and reliable infrastructure, administering network resources, managing system compliance, and ensuring mission continuity across the enterprise.

• Administer, maintain, and secure mission‑critical Linux and Windows environments
• Manage physical and virtual infrastructure supporting operational mission systems
• Install, configure, and maintain network equipment, servers, and supporting technologies
• Create, modify, and manage user accounts, permissions, and access controls
• Perform system updates, patching, vulnerability remediation, and security hardening
• Monitor infrastructure health, troubleshoot outages, and resolve connectivity issues
• Configure and maintain firewalls, network devices, and secure communications pathways
• Support data management, data movement, backup, and recovery operations
• Conduct vulnerability scans and support compliance requirements across the environment
• Collaborate with engineers, analysts, and mission stakeholders to ensure system availability and performance

Support and sustain the secure infrastructure that enables mission success. This role is responsible for ensuring operational continuity, maintaining secure data flows, and protecting critical systems that support intelligence and analytic operations.

• Bachelor’s degree and 5+ years of relevant experience, or equivalent combination of education and experience
• Experience administering Linux environments, including Red Hat Enterprise Linux (RHEL)
• Experience supporting Windows Server environments and enterprise services
• Strong understanding of networking fundamentals, client‑server architectures, and system administration best practices
• Experience managing user accounts, permissions, authentication, and access controls
• Experience maintaining network infrastructure and troubleshooting complex system and connectivity issues
• Experience with vulnerability management, system hardening, patch management, and security compliance
• Knowledge of data management, data transfer, backup, and recovery processes
• Understanding of STE/STN operational requirements

• Experience with customer analytic platforms and mission systems
• Experience with infrastructure automation and configuration management using Ansible
• Experience supporting containerized environments and repositories such as Quay
• Experience with Git Lab for source control and Dev Ops workflows
• Experience administering virtualized environments using VMware
• Familiarity with customer technologies such as Latte Art and Biscotti
• Experience supporting highly secure intelligence or national security environments

• Active TS/SCI with Polygraph required

133K-153K

• Health Care Plan (Medical, Dental & Vision)
• Retirement Plan (401k, IRA) with 100% employer match up to 6%
• Life Insurance (Basic, Voluntary & AD&D)
• Paid Time Off (Vacation, Sick & Public Holidays)
• Short Term & Long Term Disability
• Professional Development
• and much more

The salary range for this role represents Aperio’s good‑faith estimate of compensation at the time of posting. Placement within the range is based on multiple factors, including but not limited to an individual’s qualifications, relevant experience, education, certifications, technical skills, contract labor categories and/or rates, work location, market conditions, and business needs.

Aperio Global is an equal opportunity employer. We are committed to building an inclusive workforce where all employees and applicants are treated with respect and fairness. Employment decisions are based solely on qualifications, merit, and business needs — never on race, color, religion, sex, national origin, age, disability, genetic information, military or veteran status, pregnancy/childbirth, sexual orientation, gender identity, marital status, ethnicity, or any other characteristic protected by applicable federal, state, or local law.