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Senior Linux Administrator

2 months ago

Arlington, United States Command Services & Support, Inc. Full time
Company Description

Founded in 2011, Command Services & Support, Inc. (CMDSS) is a proven provider of mission-critical services to the Department of Defense and Department of Justice. With decades of experience and a team of highly credentialed experts, we have a track record of delivering results that exceed expectations. We understand your objectives, execute with precision, and always strive for excellence.

Job Description

CMDSS is seeking a Senior Linux Administrator to join our team for an on-site opportunity in Arlington, Virginia. We have an exciting opportunity with the United States Marshals Services. We are seeking an individual to join the team who is fully committed to the success of the program and bringing the best innovation, implementation, and attitudes to bear to the position.

In this position you will work with a team that provides computing capabilities and in-depth support for our clients and users. The team builds and maintains user environments, delivers subject matter expert support, and application-level software and tools.
  • Ability to work 100% on customer site (no telework)
  • Perform installations and patching of Linux and Windows operating systems
  • Assist customers with the installation and updates of applications
  • Install software and troubleshoot software install issues
  • Monitor systems and preform hardware troubleshooting, tracking, resolution, and routine maintenance and security updates
  • Ensure security protocols and standards are applied and tracked
  • Perform system backups and provide data recovery
  • Document processes and Standard Operating Procedures (SOP)
  • Monitor resource usage, anticipate problems, and suggest solutions
  • Manage production and development systems and provide higher-level technical support (Tier 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
  • Conduct configuration, deployment, troubleshooting, and maintenance of various versions of Microsoft Windows OSs
  • Conduct configuration, deployment, troubleshooting, and maintenance of various versions of RedHat Linux OSs
  • Provide software and hardware support to the customer development team
  • Setup and maintain offsite disaster recovery environment
  • Review system and security logs and report to the team regarding incidents or potential threats to the network environment, systems, users, and/or infrastructure
  • Work with load balancing, fail-over, and data replication technologies
  • Utilize WSUS, Ivanti, and/or other industry patching solutions
Qualifications
  • BS and 9 years of related experience (4 years experience in lieu of degree)
  • Active Secret or above clearance
  • Ability to work well in a team environment and independently when needed
  • Understanding of IT security best practices
  • Understanding of basic networking concepts
  • 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
  • Must have advanced working knowledge of a variety of computer software applications such as MS Teams, Word, PowerPoint, Excel, Visio, Outlook, MS Project, SharePoint
  • Experience with creating POAM milestones, and compliance and ensuring application of DISA STIG releases and STIG results analysis
  • Ability to understand IAVAs and remediate issues as needed
  • Experience in building, operating, and maintaining Windows Server 2019/2022, RHEL 7/8/9 servers, and/or CentOS servers
Desired:
  • VMWare ESXi / vCenter / Site Recovery Manager
  • ADFS / ID Mgt / PKI Certs / etc.
  • Cisco Hyperflex technologies
  • Experience writing scripts in a PowerShell and/or Linux environment
  • Understanding of disk storage systems (RAID, LUNs, etc.)
  • Experience with NetApp storage products and file system technologies
  • Managing container environments (e.g. Docker, Kubernetes, etc.)
  • Experience working with code repositories and continuous integration (CI) servers like Gitlab, Jenkins, etc.
  • Managing infrastructure services such as DNS, DHCP, GPOs, etc.
  • 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
  • Possess computing environment training or certification in any of the following: Windows Server, Red Hat, NetApp, VMware, Broadcom, and/or Cisco or other networking platforms
  • Experience in the application of DISA STIGs or SRGs, DoD, DoJ, and/or IC policies and procedures
  • Experience in managing Active Directory, configuring, and managing Group Policy Objects (GPO), FSMO roles, DNS, DHCP, etc.
  • Microsoft Exchange 2019/2022 administration


Additional Information

All your information will be kept confidential according to EEO guidelines.