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Sr. System Administrator

Job in Linthicum, Anne Arundel County, Maryland, USA
Listing for: RBR-Technologies
Full Time position
Listed on 2026-04-17
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator
Salary/Wage Range or Industry Benchmark: 60000 - 80000 USD Yearly USD 60000.00 80000.00 YEAR
Job Description & How to Apply Below

R
-Technologies is a small service-disabled veteran-owned information and technology business founded on the basic principle of delivering customer mission success. R
-technologies prides itself on our commitment to mission success as exemplified by the trust our customers and contract partners place in us. From R 's first employee to the present day, every team member has a passion for mission success. Since 2011, we have continued to employ the highest caliber of professionals whose success is attributed to the intelligence, dedication, and years of experience within many government organizations including the Intelligence Community (IC), Department of Defense (DoD), and Defense Information Systems Agency (DISA).

R
-Technologies has an immediately available opening for a Sr. System Administrator to support our customer.

Responsibilities
  • Conduct functional and connectivity testing to ensure continuing operability.
  • Develop and document systems administration standard operating procedures.
  • Maintain baseline system security according to organizational policies.
  • Manage accounts, network rights, and access to systems and equipment.
  • Plan, execute, and verify data redundancy and system recovery procedures.
  • Install, update, and troubleshoot systems and servers.
  • Comply with organization systems administration standard operating procedures.
  • Implement and enforce local network usage policies and procedures.
  • Manage system and server resources including performance, capacity, availability, serviceability, and recoverability.
  • Monitor and maintain system and server configurations.
  • Perform repairs on faulty system and server hardware.
  • Troubleshoot hardware/software interface and interoperability problems.
Required Qualifications
  • Bachelor's degree in a technical discipline and 15 years' experience as a System Administrator, OR High school diploma and 20 years' experience as a System Administrator
  • TS SCI/ Polygraph (current CI Poly under 6 years)
  • Experience with Windows Sever Administration, Active Directory, and Group Policy
  • Experience with Linux Server Administration
  • Experience with Broadcom VMware/ESXi, Broadcom VMWare Virtual Networking, and Broadcom VMware vCenter
  • Networking Switching and Router Management
  • Storage Management (Net App)
  • Hardware and Operating System troubleshooting
  • System hardening
  • Security Compliance Scanning (Nessus, ACAS)
  • Understanding of project design within the scope of security (RMF) requirements
  • Active DoD IAT Level II certification (Security+)
  • Ability to demonstrate cyber/IT related experience with attention to detail, customer service, oral and written communication, and problem solving
Preferred Qualifications
  • Experience leading the implementation and support of Broadcom VMware virtualized systems and infrastructure
  • PowerCLI
  • Broadcom VMware Aria Suite, formerly called vRealize Suite

A career at R
-Technologies doesn't mean you have to make sacrifices in other areas of your life.

Benefits
  • Best in class health benefits plan
  • Generous 401k with matching
  • Flexible work policies and schedules (dependent upon contract)
  • Generous Paid Time Off + All Federal Holidays
  • Special paid leave for:
    Bereavement, Voting, Military, and more
  • Paid Volunteer Hours for Community Outreach
  • Paid Parental Leave
  • Family-Friendly Company Paid Events
  • Annual Pet Insuran
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