Senior Systems Administrator

2 weeks ago
Job ID
Required Clearance
TS/SCI with Polygraph
Information Technology
Employment Type
Full Time

Basic Qualifications

Bachelor's of Science degree in Engineering, a related specialized area or field is required (or equivalent experience) plus a minimum of 10 years of relevant experience; or Master's degree plus a minimum of 8 years of relevant experience.


Required Experience: At a minimum the candidate must have Five (5) years' of experience in the following skillsets

  • Minimum 5 years’ experience administering Linux/Unix systems
  • General understanding and experience working with and configuring Linux disk encryption
  • Experience with Linux Volume Manager
  • Experience provisioning, configuring, patching, managing, and securing/hardening systems
  • Experience administering virtual machines
  • Experience in developing and implementing system configuration scropts in Perl, Bourne, Bash, and/or C-Shell
  • General working knowledge of Cisco and/or Dell routers and switches
  • Experience creating documentation to outline processes and procedures
  • Expertise with Accumulo, Hadoop, and PKI certificate management utilities
  • Experience with:
    • Niagrafiles (NiFi)
    • Apache HTTPD
    • Apache Tomcat
    • SQL
    • MongoDB
    • Redis
    • Linux firewall configuration (IP tables)
    • Kickstart
    • NAT and gateway setup
    • Remote server management
    • Server certificates (environment specific), encryption and secure protocols
    • Puppet
    • Yum
    • Scripting languages to include but not limited to: Bash, Perl
    • Use of management tools
    • Building RPMs
    • Accumulo
    • Hadoop
    • Maven

Preferred Experience:

  • Experience deploying software updates to remote systems
  • Experience in planning and implementing requirements associated with the Agency’s Secure the Net (STN) and Secure the Enterprise (STE) initiatives
  • Experience with software development and engineering best practices
  • Oral and written communication skills, teaming, and time management
  • Knowledge of computer/system architectures, software development life cycle, configuration management methods, and software testing principles
  • Familiarity with Map/Reduce

Department of Defense TS/SCI with Polygraph security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

Responsibilities for this Position

The Senior Systems Administrator will monitor, maintain, performance-tune, and upgrade the underlying COTS and GOTS products and infrastructure; identify and diagnose system issues; triage all user requests for production system components; deploy tested components to the operational infrastructure; maintain a pulse on industry trends and apply to product as necessary; participate in a team-based agile software development cycle.

In addition, the Senior Systems Administrator will perform Linux system setup and management for both physical and virtual operating systems, to include provisioning, configuring, patching, managing updates, and securing/hardening; provide manual and automated system management across widely dispersed Linux systems; administer and configure virtual machines and VM clusters; communicate with software developers and other team members to gather requirements and implement solutions; develop technical documentation to include system administration architecture documentation and diagrams, configurations, baselines, administrative procedures, and instructions; coordinate with developers to define operational system security requirements, develop system security plans and related security documentation and coordinate system security accreditation and authorizations.


Company Overview

General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation.  With a global team of 13,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas.  Given the nature of our work and who we are, we value trust, honesty, alignment and transparency.  We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose.  You will also enjoy a flexible work environment where contributions are recognized and rewarded.  If who we are and what we do resonates with you, we invite you to join our high performance team!


General Dynamics is an Equal Opportunity/Affirmative Action Employer that is committed to hiring a diverse and talented workforce.  EOE/Disability/Veteran


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