Systems Administrator – Ubuntu/Linux Focus

Systems Administrator – Ubuntu/Linux Focus

Location

• Onsite (initially 5 days per week)
• Potential flexibility for up to 1 remote day per week once fully onboarded

Clearance

• Interim Secret Clearance accepted to start
• Candidates with an active Secret (or higher) clearance preferred

Position Overview

Client is seeking an experienced Systems Administrator to maintain and expand a heterogeneous computing environment supporting advanced cyber system assessment research. This role supports Linux, Windows, macOS, VMware platforms, and specialized test equipment in air‑gapped and secure environments.

The Systems Administrator will act as a technology consultant to researchers and project teams, with a primary focus on Ubuntu Linux systems.

Background / Mission

The Cyber System Assessments Group provides independent cyber system evaluations for the U.S. Government, conducting cutting-edge research in cyber operations, red teaming, vulnerability discovery, reverse engineering, forensic analysis, and realistic high-fidelity cyber test environments.

Must-Have Qualifications

Experience

Systems & Automation

• Scripting and task automation (server installation, patch management, configuration) – 6+ years
• Ubuntu Systems Administration – 6+ years
• Storage configuration for Linux systems (LVM, filesystems, RAID, encryption, SAN, NAS, NFS) – 6+ years
• DevSecOps environment support – 3+ years

Virtualization & Infrastructure

• Understanding of virtualization, networking, and storage concepts – 3+ years
• Virtualization and containerization (VMware, Docker, Kubernetes, Podman) – 3+ years

Networking

• Network switch configuration – 3+ years
• Layer 2 networking protocols (VLANs) – 3+ years

Hardware

• Intel / AMD platforms
• Dell servers – 3+ years

Software Tools

• Ansible – 6+ years
• DevSecOps toolchains including:
• GitHub
• GitLab
• Jenkins
• JFrog
• Fortify
• Docker
• Kubernetes
  (3+ years)

Documentation

• Writing and maintaining system documentation – 3+ years

Soft Skills

• Ability to rapidly learn new technologies and disciplines – 6+ years
• Excellent problem-solving skills
• Strong customer service orientation
• Clear verbal and written communication skills
• Strong team collaboration skills

Nice-to-Have Qualifications

Security & Compliance

• Experience with air-gapped networks
• IT security compliance frameworks:
• NIST
• PCI
• HIPAA
• CMMC
• DoD STIGs and SCAP

Networking & Systems

• Firewall and VPN configuration
• Active Directory administration and GPOs
• Red Hat Enterprise Linux (RHEL)
• Windows System Administration
• Familiarity with JIRA / Confluence

Clearance

• Active Secret Clearance or higher

Key Responsibilities

• Administer and maintain Linux, Windows, and macOS systems
• Configure, patch, and automate server and infrastructure deployments
• Support DevSecOps pipelines and cyber testing environments
• Manage storage and virtualization technologies
• Assist researchers with system troubleshooting and optimization
• Maintain accurate and secure system documentation
• Support secure, air‑gapped, and classified environments as required

Interview Process

1. Initial pre‑screen with Hiring Manager
2. Expanded interview with group members
• Onsite interview strongly preferred

Additional Information

• Role requires working in secure, controlled environments
• Interim clearance is sufficient to start
• Candidates currently holding clearance are preferred

 Thanks-shruti Dalal-