System Administrator


Exostrategies is a small, agile professional services company that principally serves the federal government and provides affordable enterprise transformation services in anticipation of evolving threats to our nation’s critical infrastructure and operations.

General description:
The System Administrator (SA) will support the Earth Observing System Data and Information System (EOSDIS) Evolution and Development 2 (EED-2) contract which provides scientists and other users access to data from NASA’s Earth science missions. As a member of this highly motivated EED-2 team, systems administrators work on innovative tools allowing scientists and students alike to discover, transform, update and improve the quality of earth science data in the pursuit of solving a wide range of environmental and socio-economic issues.

Essential duties and responsibilities include:

  • Install new/rebuild existing physical and virtual servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements
  • Develop and maintain installation, configuration and security procedures
  • Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, monitor Nagios and update monitors as needed
  • Perform daily backup operations, ensuring all required file systems and system data are successfully backed up. Verify completion of scheduled backup jobs to local storage and replication to remote storage
  • Repair and recover from hardware or software failures. Coordinate and communicate with impacted end user communities
  • Apply OS/application patches and upgrades on a regular basis and upgrade administrative tools and utilities. Configure / add new services as necessary
  • Perform ongoing performance, system and application tuning, hardware upgrades, and resource optimization as required. Configure CPU, memory, and disk partitions as required
  • Monitor virtual computing environment, servers, virtual machines, data stores, networks. Perform application and firmware updates as required

Required qualifications:

  • Six years direct experience as a Systems Administrator with a minimum of four years of experience as a Linux system administrator (Red Hat, or CentOS Linux 6 or 7)
  • Experience automating tasks using scripting languages (e.g., shell, Perl, Python)
  • Knowledge of core system and security applications and protocols, such as basic TCP/IP, DNS, NTP, NIS/NFS, and LDAP
  • Knowledge of web-service platforms, such as Apache, iPlanet, Tomcat, Ruby on Rails
  • Knowledge of storage volume management, storage area networks, and file systems
  • Experience with network backup software (EMC Networker is preferred)
  • Proven experience with high availability, data/system replication, and disaster recovery methodologies in the system and database spaces
  • Knowledge of VMWare virtualization
  • Fundamental understanding and working skills in analyzing and correcting application and network anomalies

Additional desired qualifications:

  • Certification in Red Hat Enterprise (RHCE), Oracle Enterprise Linux (Linux Administrator OCA), or Linux Foundation Linux Certification (LFCE)
  • Experience with Postgres or MySQL
  • Network administration experience
  • Experience with establishing and supporting operational systems using AWS Management Console and Services
  • Experience with automation frameworks, such as Puppet, Chef, Ansible, and Salt
  • Experience supporting software development teams, tools, and processes
  • Experience with agile development methodologies and Atlassian tool suite (JIRA, Confluence, Bamboo)

Education requirement:

  • Bachelor’s degree from an accredited university in engineering, computer science
  • Eight years of additional direct experience accepted in lieu of degree

Security clearance requirement:

  • Active public trust clearance, or ability to pass a National Agency Clearance with Inquiries (NACI) screening
  • U.S. Citizenship

Available work location:

  • Riverdale, MD


Interested parties please send your resume, in PDF or Word compatible format, to:

Exostrategies considers applicants for all positions without regard to race, color, religion, creed, gender, national origin, age, disability, marital or veteran status, or any other legally protected status.

Posted July 16, 2019