921 Linux Administrator jobs in Leesburg,VA

BOOZ, ALLEN & HAMILTON

Reston, VA 20191

5+ years of experience administering Linux-based environments such as RedHat Enterprise Linux ( RHEL )
Experience managing configuration at scale using Ansible, including enforcing consistent system state across large inventories, detecting and correcting configuration drift, and writing idempotent playbooks
Experience using Infrastructure as Code ( IaC ) technologies such as Ansible, Terraform, Salt, Puppet, or Chef
Experience with Bash, Python, or PowerShell
Experience managing systems within U.S. federal government or DoD enterprise IT environments, including security compliance and vulnerability management frameworks such as STIG, RMF, or NIST
Active TS/SCI clearance; willingness to take a polygraph exam
Associate's degree and 5+ years of experience supporting IT projects and activities, Bachelor's degree and 3+ years of experience supporting IT projects and activities, or Master's degree and 1+ years of experience supporting IT projects and activities
Ability to obtain a DoD 8570 IAT Level III Certification such as SecurityX, formerly CASP+, CCNP Security, CISA, CISSP, GCED, GCIH, or CCSP certification within 30 days of start date
Ability to obtain a DoD 8570 Cybersecurity Service Provider - Infrastructure Support Certification ( CSSP-IS ) , including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND Certification , within 30 days of start date

Visa

Ashburn, VA 20147

At&t

Chantilly, VA 20152

Bachelor's degree and minimum 5 years of relevant experience in Security operations of systems supporting: Virtualization, Windows and Linux Computing solution engineering and architecture solutions
Experience with on-premise, cloud and hybrid-cloud based deployments.
US citizenship is required.
Active federal security clearance.
Top Secret/SCI with polygraph.