Join our Talent Network >

Senior Systems Administrator

This job posting is no longer active.

Job ID: 2216342
Location: GREENBELT, MD, United States
Date Posted: Jan 10, 2023
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-time
Shift: Day Job
Travel: No
Minimum Clearance Required: None
Clearance Level Must Be Able to Obtain: Public Trust
Potential for Remote Work: No Remote
Benefits: Click here

Share: mail

Job Description


SAIC is seeking a Systems Administrator on the OMES II contract in support of the Hybrid Flight Computing Systems (HFCS) project of the On-orbit, Servicing, Assembly and Manufacturing (OSAM-1) program in NASA’s Exploration and In-Space Services (NExIS) projects division at NASA Goddard Space Flight Center (GSFC).  This position is located in Greenbelt, MD.

The OSAM-1 mission is a Goddard Space Flight Center (GSFC) NExIS managed mission. OSAM-1 is a robotic servicing mission designed to refuel a Low Earth Orbit (LEO) satellite. It contains 3 elements: the Flight Element comprised of the OSAM-1 Servicing Vehicle (RSV) and development testbeds, the Ground Element comprised of the systems required to conduct RSV operations and the supporting networks and facilities, and the Launch Element comprised of the Launch Vehicle and supporting facilities and services. NExIS is responsible for the design, engineering, development, test and operations of the OSAM-1 Mission through an integrated team at GSFC. The Servicing Payload design, development and RSV integration will be conducted at GSFC.


The HFCS team is a critical payload subsystem responsible for the design, development, integration, and test of the flight software and Field-programmable Gate Array (FPGA) capabilities that execute on the Command and Data Handling (CDH) flight processing system to facilitate autonomous on-orbit capabilities including rendezvous and proximity operations (RPO), robotic servicing, fault management and autonomy, and overall command and telemetry services for payload sensors and avionics.

The HFCS team is developing the in-flight computational hardware, firmware and software to be used on-board the satellite to provide flight and robotic control.  Development currently occurs in a heterogeneous network environment including Linux servers and Windows and Mac user workstations. 

HFCS is looking for a candidate to provide additional system administrator support for the existing infrastructure, working with the existing staff to provide networking, IT security, general IT, and user support. 



  • Assist existing system administration staff in providing network and system support for a hardware/firmware development team.  Familiarity with Linux (Centos, Red Hat and Ubuntu), Windows 10/11 and Macintosh OS X required.
  • Assist existing system administration staff with IT security support including incident response, routine patching and vulnerability maintenance.  Experience with software patching including Microsoft patching, Mac OSX patching and Linux yum required.  Experience with Splunk, Tenable Nessus, Symantec Endpoint Protection, Bitlocker, and other IT security tools preferred but not required.
  • Familiarity with NASA, GSFC and Flight Projects Directorate IT security practices and procedures is preferred but not required.  Experience with BigFix, JAMF, Ansible, Windows Server Update Services (WSUS), DNS, Gitlab (Wiki and ticketing) and the NASA Active Directory are all preferred.
  • Provide general IT and user support for a hardware/firmware development team on Linux, Windows and OSX systems.  Familiarity with Virtual Machines server (VMware, Virtualbox and KVM/QEMU), the Microsoft Office suite (both Windows and Macintosh versions) required.  Familiarity with Jenkins and engineering FPGA software preferred but not required.
  • Provide file system backup and restoration support.  Familiarity with bacula preferred but not required.
  • Provide software installation, maintenance, and configuration support to a team of developers on Windows 10 and Macintosh OSX.  Must be able to qualify for elevated privileges for system administration.
  • Provide inventory support for project equipment.  Familiarity with snipe-it preferred but not required.  Familiarity with NASA equipment inventory procedures preferred but not required.


  • Bachelor’s degree in computer science or closely related field with five (5)+ years of engineering experience or Masters and three (3)+ years experience; PhD and 0 years related experience. 
  • Relevant system administration and IT support experience in a heterogeneous system environment.
  • Proficiency with operating systems across various platforms and versions (RHEL and Ubuntu Linux, OS X/macOS, and Windows) and familiarization with interoperability methodologies.
  • Experience maintaining network backups and logs of multiple systems.
  • Ability to grasp a wide range of unique skills, and be able to think and respond quickly to real-time problems as they arise.

Covid Policy: SAIC does not require COVID-19 vaccinations or boosters. Customer site vaccination requirements must be followed when work is performed at a customer site.


SAIC® is a premier Fortune 500® technology integrator driving our nation's technology transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, digital, artificial intelligence, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are approximately 26,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer, fostering a culture of diversity, equity, and inclusion, which is core to our values and important to attract and retain exceptional talent. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.4 billion. For more information, visit For ongoing news, please visit our newsroom.

Share: mail

Are you an SAIC Employee?

Please apply through the internal career site here >