SA021 Senior Linux System Administrator

ADNET Systems is looking for a Linux system administrator with 10 years experience to manage computer systems supporting the GEDI Science Operations Center and ICESat2 mission operations at NASA/Goddard Space Flight Center. These systems currently consist of a mixture of Linux and Mac computers but the team is actively migration away from the Mac platform.  

The Linux system administrator must demonstrate an ability to proactively manage systems, looking forward to mitigate problems before they become problems, in a mission operations environment that includes changing scientific and security requirements over time.  


  • At least ten years experience with Red Hat Enterprise Linux or its derivatives
  • Experience working in a Data Center
  • A working knowledge of managing Mac computers
  • A working knowledge of SELinux
  • Strong organizational skills
  • Demonstrates initiative and has managed projects independently
  • Excellent communications skills, both written and verbal
  • Scripting in Perl
  • Ability to install and configure open source and third party software
  • Experience managing clusters of computers that use centralized job management
  • US citizenship required


  • Knowledge of high availability and fault tolerance environments
  • Experience implementing Government networking and operating system security controls. The ability to adapt to changing security requirements and their impact on workflows.
  • Experience with a clustered Linux environment
  • Software development experience, especially in Perl, Matlab, Python, C or Fortran
  • Basic competence with Git and Puppet, or similar source and system management tools
  • Demonstrated ability to document workflows or data flows
  • Experience testing configuration and software changes in a development environment
  • Systems backup and restoration

ADNET is an employee-centric company, committed to providing premier benefits that support our employees and their families. With affordable medical and dental plans coupled with leading disability and life insurance options, ADNET offers our employees the benefits most sought after by today’s professional. Furthermore, our benefits package features the extras that distinguish us from other small businesses, ensuring our high employee retention that our customers appreciate. Some features of our compensation plans include:

Annual Leave/Sick Leave
Military and Family Emergency Leave
Paid Holidays Swag Bags / Swag
Performance Bonuses
Medical and Dental Plans
Direct Deposit Payroll
401K Plan with Company Matching and Immediate Vesting
Tuition Reimbursement
In-house Seminars/Workshops/Classes
Management Retreats/Seminars