Systems Administrator

Alexandria, Virginia
Jun 16, 2022
Jun 29, 2022
Full Time

The Systems Administrator will provide system administration duties for multiple servers hosted on both classified and unclassified networks, on-premises, hybrid-cloud, and in the AWS GovCloud.

  • Install, support, and maintain hardware and software infrastructure according to best practices, industry standards, and/or customer/organizational requirements, including routers, switches, firewalls, servers, and storage systems.
  • Diagnose problems and solve issues, often under time constraints.
  • Implement the necessary controls and procedures to protect information systems assets from intentional or inadvertent modification, disclosure, or destruction.
  • Provide network and host-based security, incident response, and log collection and analysis.
  • Perform regular security monitoring to identify any possible intrusions.
  • Assist in the development of guidelines and procedures for administration and security best practices.
  • Monitor resource usage, anticipate problems and suggest solutions.
  • Manage production systems and provide higher-level technical support (Tier II, III) to clients when needed.
  • Work closely with colleagues to meet team goals and improve processes and practices.
  • Create and maintain documentation of the systems.
  • Manage hypervisors in a VMware environment, including configuration, deployment, troubleshooting, and maintenance.
  • Provide software and hardware support to the development team.
  • Set up offsite disaster recovery environment as needed.
  • Provide support for SAN (Storage Area Network) and NAS (Network-Attached Storage) devices.
  • Review system and security logs and report to the team regarding incidents or potential threats to the network environment, users, or infrastructure.
  • Monitor the production environment and report any code/security-related issues to the development team.
  • Install, maintain, configure, optimize, and secure network operating systems and storage operating systems, including Microsoft Windows, Linux, and VMware server operating systems.
  • Conduct planning, image testing and deployment, administration, day to day maintenance of desktop operating systems, software applications and supporting license servers, and hardware utilized on user workstations.
  • Apply appropriate Security Technical Implementation Guides (STIGs) and provide the check reports with explanations of the results in a government-approved format.
  • Maintain IAVM, SARs, CTO, and other applicable directive compliance in accordance with timelines as specified by DoD.
  • Administer and manages government-approved versions of UNIX, Linux (RHEL, CentOS, Amazon Linux, Ubuntu), Solaris, Windows (Server and workstation), and other operating systems as new requirements arise.
  • Maintain IAVM, SARs, CTO, and other applicable directive compliance in accordance with timelines as specified by DoD.
  • Support for Data Transfer Across (DTA) domains sized up to 5TB, going between CorpsNET, NIPR, SIPR, JWICS, and other supported networks as needed.
  • Other duties as assigned.

  • Associate degree and 8+ years of experience in the IT field or equivalent combination of education and experience
  • BA or BS degree in Information Technology or similar desirable if under 8 years of experience
  • Experience installing, configuring, administering, and maintaining Unix and Windows operating systems and NetApp
  • DoD 8140/8570.01-M Baseline IA at IAT II or better: CCNA Security, CySA+, GICSP, GSE, Security+ CE, or SSCP
  • Active TS/SCI required
  • The position requires a COVID vaccination or an approved accommodation/exemption for a disability/medical condition or religious belief

Knowledge, Skills and Abilities:
  • Outgoing team player and self-motivated individual with excellent communication skills with the ability and desire to interact with all users and work closely with other technical staff or independently.
  • Demonstrated ability to multi-task effectively under pressure with the ability to frequently re-assess priorities for multiple tasks or projects.
  • Strong time management and resource management capabilities.
  • Operational experience with NIPR, SIPR, JWICS, DDTE, DREN, SDREN, AWS, AWS GovCloud (US), milCloud, SC2S, and/or C2S.
  • Manage Active Directory, configure and manage Windows Network Policy Server (Dot1X, RADIUS), configure Group Policy Objects (GPO), apply and/or assess the operating system, web server, and web application STIGs and SRGs.
  • Windows Server, RHEL, CentOS, and understanding/experience with the application of DISA IASE STIGs and SRGs and DoD, Army, and IC policies and procedures.
  • IIS, Splunk, BMC, Ivanti, SolarWinds, ArcGIS, Backup Exec, and HBSS.
  • Experience with NetApp, Quantum, and/or Nimble storage products and cloud storage, like AWS EBS, EFS, S3, S3 IA, and Glacier.
  • Computing environment training or certification in Microsoft, Red Hat, NetApp, Quantum, EMC, Nimble, VMware, Brocade, Juniper, or Cisco.
  • Ability to build, operate, and maintain Windows Server 2012 R2, Windows Server 2016, RHEL, and CentOS 6, 7 servers, including Windows Server 2019.
  • Install, configure, manage, and maintain VMware vSphere 6.x, ESXi, and vCenter.
  • Configure and manage MS SQL and PostgreSQL databases and apply and/or assess database STIGs or SRG.
  • Experience with disaster recovery configurations.
  • Knowledgeable in application transport and network infrastructure protocols (SSL/TLS, DNS, DHCP, NTP, SSH, HTTP/S, SMTP, and Microsoft AD) and possess an understanding of how to support these applications/protocols.
  • Experience with systems and data encryption.
  • Experience with fail-over clusters, load balancing, and data replication technologies.
  • Familiarity with configuring both CISCO and Brocade Fibre Channel switches.
  • Must have an advanced working knowledge of a variety of computer software applications in word processing, spreadsheets, database (MSWord, Excel, Access, PowerPoint), and Outlook.
  • Must have strong technical knowledge of current network hardware, protocols, and standards and strong technical knowledge of telecommunications, networks, and PC operating systems.

#Chenega Decision Sciences, LLC

Chenega Corporation and family of companies is an EOE.

Equal Opportunity Employer/Veterans/Disabled

Native preference under PL 93-638.

We participate in the E-Verify Employment Verification Program

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