Linux Systems Administrator II

GAMA-1 Technologies, LLC seeks a highly skilled System Administrator II with a strong Linux background to provide advanced technical expertise in the design, implementation, configuration, maintenance, and optimization of complex IT systems in an on-site enterprise environment
. This role will support mission-critical, multi-platform systems
, with primary responsibility for Linux-based infrastructure while also supporting Windows systems as part of an integrated enterprise ecosystem.

None

Reasonable accommodations may be made to enable individuals with disabilities to perform these essential functions.

• Administer, configure, harden, and optimize Linux operating systems (RHEL, Rocky, Ubuntu, or similar) in compliance with federal IT and security standards
  .

• Support and maintain Windows Server environments as part of a mixed OS enterprise infrastructure.

• Design, implement, and maintain scalable, resilient Linux-based system architectures ensuring high availability, performance, and security.

• Perform advanced system configuration,
  patching
  , monitoring, logging, and performance tuning for Linux servers and services.

• Participate in system upgrades, migrations, and modernization initiatives
  , including on-prem to cloud or hybrid deployments.

• Develop and maintain detailed system documentation
  , configuration baselines, and standard operating procedures (SOPs).

• Manage backup, recovery, and disaster recovery solutions
  , including testing and validation.

• Troubleshoot and resolve complex system issues across Linux and Windows platforms; perform root cause analysis and implement long-term corrective actions.

• Collaborate closely with network, cloud, cybersecurity, and application teams to ensure secure, integrated operations.

• Support security compliance efforts
  , vulnerability assessments, STIGs, and remediation activities.

• Develop and maintain automation and configuration management solutions using scripting and tools (Ansible, Bash, Power Shell, Python, etc.).

• Continuously identify opportunities to improve operational efficiency
  , system reliability, and security posture.

This job description is not intended to be an exhaustive list of all duties. Responsibilities may change at any time with or without notice.

• Adhere to all organizational information security policies and procedures.

• Participate in mandatory security awareness training.

• Handle confidential and sensitive information in accordance with company and federal data protection standards.

• Bachelor’s degree in Computer Science, Information Technology
  , or a related field.

• 2–4 years of hands-on system administration experience
  , with a strong emphasis on Linux environments
  .

• Demonstrated experience administering enterprise Linux systems in production or federal environments.

• Working experience with Windows Server
  , including Active Directory and Group Policy.

• Proficiency with:

  • Linux system services, permissions, package management, logging, and troubleshooting

  • Active Directory, DNS, DHCP

  • Virtualization platforms (VMware, Hyper‑V)

  • Monitoring and logging tools

• Hands‑on experience with cloud platforms (AWS, Azure, or GCP) and hybrid infrastructure
  .

• Strong scripting and automation skills (
  Bash, Python, Power Shell
  ).

• Solid understanding of network fundamentals (TCP/IP, routing, VPNs, firewalls).

• Strong analytical and troubleshooting skills.

• Linux-focused certifications such as:

  • RHCSA / RHCE

  • Linux+

• Additional certifications such as:

  • CompTIA Security+

  • VMware Certified Professional (VCP)

  • AWS Certified Sys Ops Administrator

• Advanced certifications (highly preferred):

  • CISSP, CCSP

  • AWS or Microsoft Solutions Architect

• Knowledge of ITIL, Agile, or SAFe methodologies.

• Strong written and verbal communication skills, with experience documenting and presenting technical solutions.

• Ability to obtain a security clearance is required.

• Work is performed in an on-site enterprise environment.

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GAMA-1 also offers a variety of benefits, including health insurance coverage, life and disability insurance,…