Linux Administrator Level 3

2 months ago

Pensacola, United States Argo Cyber Systems Full time
Job DescriptionJob Description

The Systems Administrator applies expert knowledge in Linux/Unix environments for infrastructure support to an advanced cybersecurity environment. Works with a team of highly skilled administrators to provide senior level administrative expertise for an RHEL environment. Mentors junior system administrators and recommends design changes to improve the system operability.

Required Skills:
• Must be a US Citizen
• Must have an active Secret clearance and be able to obtain a TS/SCI clearance
• Must be able to obtain DHS Suitability
• 4+ years of system administration in Linux, ideally Red Hat Enterprise Linux version 7 or 8 (RHEL7 / RHEL8) with the ability to engineer, install, administer and maintain complex system architectures
• Experience with Linux OS installation, security hardening, and maintenance
• Experience with administration and management of Linux servers to include installation, configuration, optimization, backup & recovery
• Experience with Linux performance tuning & troubleshooting, identifying and resolving contention in CPU, memory, networking, disk I/O, etc
• Skilled in Linux-related scripting (Bash, Perl, Python, etc.)
• Experience with products such as Red Hat Satellite Server, Puppet, Chef and/or Ansible
• Ability to manage changes to system and assesses the security impact of those changes
• Integration & implementation experience with various services, LDAP, Samba, NFS, Bind, Apache, and other core technologies
• Familiarity with configuration management
• Strong research, analytical, and problem solving skills
• Good communication skills including preparing and presenting results, findings and alternatives and influencing management decision making based on the best available data

Desired Skills:
• Experience with Infrastructure as Code (IaC) using Ansible or other comparable products
• Experience working in an agile development environment
• Experience with software development using java, RESTful services
• Comfortable with multilevel security systems, SELinux, and/or Cross Domain Solutions
• Experience with data orchestration software such as Apache NiFi or StreamSets
• Experience with distributed compute environments such as Hadoop
• Experience with Amazon Web Services (AWS) platform capabilities, including good understanding of the Amazon Web Services (AWS) Well-Architected Framework, AWS certification
• Experience working in AWS via the CLI and management console. Knowledge and experience configuring Virtual Private Clouds (VPCs)
• Experience working in DevOps and/or DevSecOps environments
• Familiarity with the following technologies in a cloud environment: ELK Stack (ElasticSearch, Logstash, Kibana), Ansible, Nessus, Zscaler, ClamAV, AIDE, Splunk, DNS, NAT, git, Docker, Kubernetes, OpenShift, Jenkins

Required Education:
• Bachelor's degree in Systems Engineering, Computer Science,, Computer Engineering, Computer Information Systems, Computer Systems Engineering or a related discipline is required.[Four (4) years of experience (for a total of eight (8) or more years) may be substituted for a degree.]
Desired Certifications:
• DoD 8570.1 IAT Level I
• Red Hat Certified System Administrator (RHCSA)



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