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Sr. Systems Administrator

Senior Systems Administrator

TISTA Science and Technology Corporation, a CMMI Maturity Level 3 company, focuses on delivering information technology and professional services to Federal and State agencies. TISTA is an Inc. 500 company, a recipient of the 2010 Top 100 Service-Disabled Veteran-Owned Businesses from Diversity Business, recognized in Washington Technology’s FAST 50 list of the fastest growing small businesses in government contracting in 2012 & 2013, recognized as the Top 25 Fastest Growing Small Technology companies by the Washington Business Journal in 2014 & 2015, and selected as the Veteran Owned Company of the Year in 2014 by the Montgomery County MD Dept. of Economic Development. 

Job Description:

Senior Systems Administrator is responsible for developing, planning, maintaining, and having the highest level of performance as an expert in the system administration for computers and their complex operating systems. Skilled in Patch Management and Installation, managing Active Directory, Group Policy, IIS, SSL and authentication technologies, as well as an in-depth knowledge of IP networking, VPN’s, DNS, SSL, load balancing and firewall technologies.

Responsibilities:

  • Provides remediation services to infrastructure teams based on vulnerability & policy compliance scans
  • Actively participates in project activities, strategic and tactical Patch and Configuration Management model development, and improvement of procedures and standards
  • Assists in proactively developing patch and vulnerability management procedures and processes within the security operations team and in conjunction with business and IT partners
  • Identify and assess security deficiencies and provide patch remediation
  • Works closely with internal technology teams to patch builds, execute build tests, document results and publish patch notes
  • Ensure patch configuration is up to date ensuring compliance
  • Utilize tools to automate patch creation, including defining dependencies, moving labels, submitting build and test requests for major, minor, and patch releases
  • Responsible for patching assets in test and production environments while ensuring quality
  • Configure, maintain and administer version control tools
  • Participate in Change Advisory Board (CAB) and Technical Review Board (TRB) meetings to discuss release scope and/or roadblocks
  • Negotiate, plan and manage patch activities

Requirements:

  • Basic understanding of server hardware functionality to support their job function. 
  • Experience Required: 5+ years relevant experience
  • DOD IA 8570 IT-1

Education: 

Bachelor Degree or equivalent work experience

Security Clearance Requirement:

  • Secret Clearance

Location:

  • Pentagon City, VA

Equal Opportunity Statement 
TISTA is an Equal Opportunity Employer, making decisions without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, age, veteran status, disability, or any other protected class. We are proud of our diverse team, are an Equal Opportunity Employer, and encourage all qualified candidates to apply.

 

 

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