DTRA--Systems Administrator Senior-Linux Administrator

Defense Engineering Inc. (DEi) team is seeking a Linux Senior Systems Administrator to support our long-term contract located at the Defense Threat Reduction Agency (DTRA) at Fort Belvoir, VA.

DEi is a leading small IT business leader in the Washington D.C. Metropolitan Area. DEi combines experience and innovative ideas to provide our clients with the right solution with the right people at the right time. We are a proven IT services and solutions provider for full-life-lifecycle engineering of network, storage, cyber security, communication and policy compliance needs. We focus on delivering IT solutions to meet complex technological and business challenges within mission-critical enterprises.

In addition to the traditional full-time employee benefits package (health, dental, vision, 401K, life insurance, short-term and long-term disability plans, vacation time and holidays, DEi also offers Education and professional Certification Reimbursement, Gym Membership reimbursement, Mass Transit and Parking benefits.

Job Category: Information Technology – Linux Senior Administrator

Location: Fort Belvoir, VA US, On site as needed at Reston, VA for the near future

Clearance Level Must Currently Possess:

TS/SCI

US Citizenship

Certifications (Baseline)

• 8570 Baseline Active IAT Level II (Minimum of one)
  • Security+ CE
  • CySA+
  • GICSP
  • GSEC
  • SSCP

Additional Certs

Linux certification (RHCSA Preferred), CompTIA Linux, LCFS/LCFE, etc.)

Education/

Experience:

STEM Bachelors degree with 8+ years, or STEM Masters degree with 6+ years of experience in IT operations working with Linux servers and Virtualization. Additional, specific years of experience can be taken into account in lieu of degree.

Schedule:
Full-time

Potential for Teleworking: Situational

Travel: None

Shift: Day Job

Job Description

The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected to work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected to support the entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment.

Candidate should be familiar with system automation technologies, basic database administration and tuning. Candidate must demonstrate a high degree of problem-solving ability in a complex environment and be able to communicate effectively, both to the customer and to team members.

Work location is on-site at Fort Belvoir, VA with on-site as needed in Reston, VA.

Required Clearance:
Active Top Secret with SCI

Key Responsibilities
:

• Provision servers and environments
• Manage user access
• Maintain servers in a virtual environment
• Automation knowledge scripting in Unix shell and Ansible playbooks
• Maintain and improve configuration management templates
• Monitor system performance and respond to alerts
• Establish and maintain NTP services in the production environment
• Maintain satellite servers for the agency, software releases and patches

Required Qualifications

• Experience with the following emerging technologies or an equivalent technology:
  Kubernetes, Open Shift, Containers, Git Hub, Ansible Tower
• Ensure compliance with security standards and practices aligned with DoD STIGs.
• Experience with web servers and use of certificates
• Open Source:
  Apache Hadoop, Zookeeper, Puppet
• App Servers: JBoss, Tomcat, Jetty, NGINX, HTTP
• 2-3 years of experience with web server management and implementation; troubleshooting of websites, applications, and security implementations.
• Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches.
• Experience with log file analysis
• Experience with Red Hat Satellite tool for deploying, configuring, and maintaining Red Hat Enterprise Linux (RHEL) across physical, virtual, and cloud environments.
• Understanding of Red Hat, provisioning, and patching, often using Satellite Capsules for distributed content delivery and local services like DHCP/DNS in large or remote setups. It centralizes RHEL management, improving security and efficiency by handling subscription management, content views, and system auditing from a single console.
• Understanding of Red Hat command line tools:
  System Management, Manage RPM packages, and Package Management.

Desired Qualifications

• 2-3+ years of Windows Server experience.