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. We view the intersection of cybersecurity, artificial intelligence, and data analytics as an empirical discipline as rigorous and consequential as any field in science or engineering. That means we bring intellectual honesty, accountability, and transparency to every problem we take on.

Our team includes tech innovators, Intelligence Community veterans, and security professionals who know that the best solutions come from diverse minds working toward a common mission. We value our people, those working quietly behind the scenes, doing the hard work that keeps our nation secure. The best way to understand how we think is to see what we've built.

From full-spectrum cyber operations and de-biased AI platforms to quantum networking and cloud-native software systems, our work speaks for itself.

Compensation

and a comprehensive

Benefits

package — including medical, dental, and vision coverage, a 401(k) retirement plan, life insurance, generous paid time off, short and long-term disability, professional development, and much more. We invest in our people because they are our most important asset — and because the mission demands the best. Systems Administrator TS/SCI with Polygraph is required.

About The Role

: 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.

What You'Ll Do

: 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 Mission Focus: 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.

Required Qualifications

: 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 iss