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Systems Administrator III

Quantico, VA · Information Technology

Employment Type: Full-Time
Shift:

About the Company
Athena Technology Group, Inc. (ATG) is a Service-Disabled Veteran Owned Small Business (SDVOSB) focused on Information Technology and Communications consulting, system engineering, integration, deployment and operation of state of the art command and control and information systems that deliver critical network centric solution to the warfighter. With a proven track record of technical support to our customers, we are looking for innovative industry professionals to join our team.
ATG is an Equal Opportunity/Affirmative Action Employer Minorities/Females/Vets/Disability
Job Summary
Systems Administrator III (SA3) is responsible for the administration, maintenance, and optimization of enterprise IT systems and infrastructure in support of mission-critical operations. This role provides advanced technical expertise in system configuration, troubleshooting, and performance tuning across a variety of platforms and environments. The SA3 ensures system reliability, security compliance, and operational efficiency in alignment with program requirements.

Key Responsibilities

  • Install, configure, and maintain enterprise servers, operating systems, and associated infrastructure
  • Monitor system performance and ensure availability, reliability, and security of IT systems
  • Perform system upgrades, patch management, and vulnerability remediation
  • Troubleshoot and resolve complex system issues across hardware, software, and network components
  • Support implementation and maintenance of security controls in accordance with DoD and RMF requirements
  • Manage user accounts, permissions, and access controls
  • Develop and maintain system documentation, standard operating procedures, and configuration baselines
  • Provide technical support and guidance to junior administrators and team members
  • Coordinate with engineering, cybersecurity, and network teams to support integrated solutions
Qualifications
Required    
  • Master’s degree in Information Technology, Computer Science, or related field
  • Minimum of 7 years of relevant systems administration experience
  • Active DoD Secret clearance (TS/SCI preferred depending on contract)
  • Strong experience with Windows and/or Linux operating systems
  • Experience with virtualization technologies (e.g., VMware, Hyper-V)
  • Knowledge of Active Directory, DNS, DHCP, and enterprise infrastructure services
  • Familiarity with cybersecurity best practices and DoD RMF framework
  • Ability to troubleshoot and resolve complex technical issues
  • Strong written and verbal communication skills
Desired
  • Relevant certifications (e.g., Security+, CASP+, MCSE, RHCE)
  • Experience supporting DoD or federal environments
  • Familiarity with cloud platforms (e.g., AWS, Azure)
  • Experience with automation and scripting (e.g., PowerShell, Bash

Physical and Environmental Conditions 

Normal Office Environment. Requires Sitting, Standing, Near Acuity, Speaking with colleagues and customers, Listening, Sight, Use of hands/fingers. 
  
This position description is not intended as, nor should it be construed as, exhaustive of all responsibilities, skills, efforts, or working conditions associated with this job. This and all positions are eligible for organization-wide transfer. Management reserves the right to assign or reassign duties and responsibilities at any time. 

Additional Benefits
  • Performance Bonuses and annual salary reviews
  • Health, dental, and vision insurance
  • Short Term Disability, Long Term Disability, and Life Insurance
  • 401(k) plan with company match
  • Opportunities for professional growth and development
  • A collaborative and inclusive work environment

EEO Statement

ATG is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, religion, creed, color, national origin, ancestry, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, medical condition, marital or domestic partner status, sexual orientation, gender, gender identity, gender expression and transgender status, mental disability or physical disability, genetic information, military or veteran status, citizenship, low-income status or any other status or characteristic protected by applicable law.
 

 

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