System Administrator

Full Time
Central Maryland
Posted 1 month ago

SITEC is hiring System Administrators, immediate requirements. Able to do some training if at least 75% of requirements are met. SITEC covers 100% of the premium for employee and dependents medical, dental and vision insurance and has an annual allowance for training, certifications, and professional development for each employee.

Responsibilities include, but are not limited to:
•System patching for Widows, Linux, and VMWare systems. OS upgrade cycles, cumulative patching and testing, security updates and software maintenance. WSUS maintenance.
•System maintenance to include maintaining existing server hardware, firmware upgrades, hardware failure resolution, hardware replacement and hardware installation.
•Maintaining configuration baseline to include VMware host profile maintenance, Linux configurations and Active Directory Group Policy.
•Maintaining and creating documentation for hardware, network and system configuration changes to include cabling, storage paths and rack design.
•Maintaining STE/STN compliance for system security plans to include daily rectification of UAM, SEAR, NETSEER, TLS, Nessus, ePO, and SCEP reporting.
•Network-related maintenance to include troubleshooting, packet flow and configuration of physical and software-based firewalls, software-defined networking (VMware NSX) and network hardware.
•Managing and maintaining access to multiple Active Directory domain environments, SQL clustering, Server 2016/2019 systems, Linux systems, gateways, HTML display broker system and proxies
•Track metrics and performance counters to troubleshoot and adjust to system usage as needed, i.e. create/delete new VMs for NLB, adjust resource pools, affinity rules, DRS adjustments.
•Failover cluster and network load balancer management. Operation and maintenance.
•System certificate management, issuing and maintaining system SSL certificates to include Windows, Linux, VMware. Also, maintaining certificate authorities.
•SSP maintenance to include verification of systems, removal/addition of systems and scanning/compliance of systems. Reporting of patch compliance, system compliance and other documentation.
•Proprietary system management such as the FireEye to include configuration, guest image updates and daily content updates.
•Attend weekly meetings
•Software solution review, installation, and testing (i.e. an internal Git server needed for customer requirements, Teams Foundation Server, Share Point etc.)
•Maintaining ePO exclusions which change due to Enterprise changes.
•Vendor-related communications, support cases and engineering for design documentation and outfitting
•System Center Configuration Manager – endpoint and systems management for CM maintenance
•Backup maintenance and verification.


  • Three (3) years experience with an IC or SigInt activity
  • 7-10 Years experience with installation, maintenance, and trouble shooting of LAN, WAN, computer hardware and software
  • Five (5) years demonstrated experience performing and assisting with equipment specification, setup, problem resolution, network support, etc. related to computer hardware and software; and providing assistance to users.
  • Five (5) years of experience ensuring licensing agreements and system currency
  • Bachelor’s degree in a related field

Job Features

Job CategorySystems Administrator
Clearance Level RequiredClearance Required
Years of Experience Requried7-10

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