Hamdan Resources

Network Specialist-Linux

Aberdeen Proving Grounds, MD - Full Time

Network Specialist-Linux

Aberdeen Proving Ground, MD

Candidate must be a U.S. Citizen and hold at least an active Secret clearance 


  • Perform installations, configuration, administration, support, tracking, and maintenance and participate in the assessment, testing, and analysis of Linux-based complex and secure computer systems.
  • Review design documentation, vendor self-assessments, network protocols, and software code for system vulnerabilities.
  • Provide technical information system security testing in support of the appropriate security risk management processes using security assessment and technical testing efforts, including in-depth network or application vulnerability testing, such as automated and manual testing and demonstrable false positive validation.
  • Develop documentation in support of testing efforts, including test plans, preliminary findings reports, security assessment reports, and other similar test artifacts for the government, as required.
  • Maintain responsibility for supporting hardware and system engineering efforts and providing maintenance and sustainment for existing and new government systems.
  • Assist with full life cycle support for critical systems in both operational and test environments. Provide engineering change input for government system upgrades and ongoing engineering efforts.


  • 5+ years of experience with system administration support
  • 3+ years of experience with Linux specific administration
  • Experience with Linux based operating systems, including Red Hat Enterprise Linux /Centos Linux systems monitoring reviewing system logs, application logs, and security audits
  • Experience with setting-up and maintaining physical and virtual UNIX or Linux machines in all environments and the application and maintenance of operating system or security patches to UNIX or Linux systems
  • Experience with performing software validation analysis, defining, and documenting test plans and specifications required for regulatory compliance
  • Experience with networking, including design, testing, development, and integration
  • Experience in interacting with end users and providing customer support
  • Ability to build, configure, and maintain servers in a laboratory or operational system
  • Follow industry and department trends and developments to ensure services are consistent with, and/or superior to, industry best practices
  • Experience with reviewing government guidance, including task orders, directives, STIGS, or IAVAs for applicability   and implementation
  • Secret with SSBI clearance required
  • AA or BS degree (Experience can be substituted for educational requirements.)
  • Security+ CE Certification
  • Linux Certification with one or more of the following: RHCSA, RHCE, Linux+, LPIC, or Solaris

Clearance Requirement:

Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; Secret with SSBI clearance is required.

Mandatory Requirement: Candidate must be a US Citizen in order to obtain and maintain an interim and final security clearance.

Preferred Qualifications:

  • Top Secret clearance preferred
  • Red Hat Certified Engineer (RHCE)
  • BA or BS degree in a technical area (Computer Science, Information Assurance, Cyber Security
  • Experience with developing and presenting, orally and in writing, technical information to non-technical audiences and clients
Apply: Network Specialist-Linux
* Required fields
First name*
Last name*
Email address*
Phone number*

Attach resume as .pdf, .doc, .docx, .odt, .txt, or .rtf (limit 5MB) or paste resume

Paste your resume here or attach resume file

Cover Letter*
In 150 characters or fewer, tell us what makes you unique. Try to be creative and say something that will catch our eye!*