System Administrator

Posted 25 Days Ago
Be an Early Applicant
Reston, VA, USA
In-Office
Senior level
Information Technology • Security • Cybersecurity • Automation
The Role
The System Administrator will ensure the operational efficiency of computer systems, manage security, troubleshoot issues, and maintain system performance in a hybrid environment.
Summary Generated by Built In

Mantis Security is a leading specialty firm of high caliber talent who specialize in Cyber Operations, Cyber Defense, Information Assurance, Software Development, DevSecOps, Security Engineering, and Cloud Engineering. We enable and protect our nation's most important IT assets and invest in the long-term career development of every employee! We are currently looking for the next System Administrator to join our team of experts!

What you'll be doing:

• Maintains smooth operation of multi-user computer systems, including coordination with network engineers.
• Monitors and manages system resources, including CPU usage, disk usage, and response times to maintain operating efficiency.
• Performs systems security administration functions, including creating user profiles and accounts.
• Provides Tier 1 and Tier 2 problem identification, diagnosis and resolution of problems. Provision/harden Linux operating systems.
• Other duties may include setting up administrator accounts, maintaining system documentation, tuning system performance, installing system wide software and allocating mass storage space. Interacts with users and evaluates vendor products. Makes recommendations to purchase hardware and software, coordinates installation and provides backup recovery. Develops and monitors policies and standards for allocation related to the use of computing resources. Must have familiarization with scripting and installing applications from root files. Working knowledge of reviewing of security scans, applying fixes to resolve noted deficiencies and ability to work with and run STIGs via a viewer or other automated tools.
Need to Have:
  • A Bachelor’s degree with 5 years of relevant experience OR a Master’s degree with 3 years of relevant experience; an additional 4 years of experience may be considered in lieu of a degree requirement
  • Significant experience administering Linux or other UNIX-based systems.
  • Experience working with Alpine or other container-based operating environments.
  • Skilled in working with DevOps or DevSecOps teams to deploy and troubleshoot systems
  • Experience creating and maintaining shell scripts, including Python and Bash
  • Managing SSH access and security policies across a hybrid environment.
  • TS/SCI with current CI poly
  • Current IAT II Certification 

We believe that our strength is in our employees. We offer employees the chance to work with great people on projects of high importance and are committed to providing the best culture that foster’s technical innovation and personal growth. To help our staff achieve a productive work-life balance, we offer a full range of highly competitive benefits for our employees and their families. For more information visit our website at https://www.mantissecurity.com

Skills Required

  • Bachelor's degree or Master's degree with relevant experience
  • 5 years administration of Linux systems
  • Experience with container-based operating environments
  • Experience with DevOps or DevSecOps
  • Creating and maintaining shell scripts in Python and Bash
  • Managing SSH access and security policies
  • TS/SCI with current CI poly
  • Current IAT II Certification
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The Company
HQ: Sarasota, Florida
15 Employees
Year Founded: 2015

What We Do

Mantis Security provides purpose-built cybersecurity solutions that safeguard some of the nation's most sensitive information assets. Our security consultants work with data owners and system developers to provide modern security approaches in software systems architectures and security engineering while maintaining the traditional cornerstone of information assurance. Our solutions balance security and functionality objectives to ensure that your sensitive data remains well-protected while empowering users to focus on mission accomplishment. Mantis Security provides expertise in Application Security Testing, Information Assurance, Security Engineering, Cloud Security, DevSecOps, Cyber Data Science, Security Architecture, Cyberspace Operations, and Critical Infrastructure Security. Mantis Security is an AWS Partner and a CMU/SEI Partner for Insider Threat Vulnerability Assessments. http://www.mantis-security.com

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