Systems Administrator (Linux)

hackajob is collaborating with Aquila Technology to connect them with exceptional professionals for this role.

Classified Systems Administrator (Linux)

Clearance Required: Active Secret Clearance

Location:Cambridge, MA

Employment Type: Full-Time

We are seeking a Classified Systems Administrator with a strong Linux background to support, manage, and deploy mission-critical applications within a classified environment. The ideal candidate will have hands-on experience administering Linux operating systems and supporting engineering, collaboration, and configuration management tools in secure, compliance-driven environments.

Key Responsibilities

• Administer, maintain, and support classified Linux-based systems in accordance with DoD and organizational security requirements
• Install, configure, deploy, and manage enterprise applications, including:
• IBM DOORS
• GitLab
• TeamWorkCloud
• Windchill
• Confluence
• Jira
• Creo
  
  

Perform system monitoring, performance tuning, patching, and troubleshooting for Linux environments:

• Support system hardening, vulnerability remediation, and security compliance (STIGs, RMF, audit readiness)
• Coordinate with cybersecurity, engineering, and system owner teams to ensure systems are operating securely and efficiently
• Maintain system documentation, configuration baselines, and operational procedures
• Support backup, recovery, and continuity of operations efforts
• Provide technical support and issue resolution in a classified setting
• Participate in system upgrades, migrations, and new deployments as required
  
  

Required Qualifications

• Active Secret Clearance (required at time of hire)
• Strong experience administering Linux systems in classified or secure environments
• Demonstrated experience managing and deploying enterprise applications such as:
• IBM DOORS
• GitLab
• TeamWorkCloud
• Windchill
• Confluence
• Jira
• Creo
  
  

Experience With The Following Operating Systems

• Red Hat Enterprise Linux (RHEL) 7, 8, and 9
• Ubuntu
• Oracle Linux
• Familiarity with system security best practices and compliance requirements
• Ability to troubleshoot complex system and application issues
• Strong documentation and communication skills
  
  

Preferred Qualifications

• Experience supporting engineering or PLM environments
• Familiarity with DevSecOps or CI/CD pipelines in classified environments
• Knowledge of DoD security frameworks (RMF, NIST 800-53, DISA STIGs)
• Scripting experience (Bash, Python, or similar)
  
  

Work Environment

• On-site support in a classified facility
• Work performed in accordance with security and access control requirements