Job Title: Lead, Information Security System EngineeringJob Code: 39254Job Location: Greenville, TX; On-siteJob Schedule: 9/80, off every other Friday, 1st shiftJob Description: This position is for a Linux Systems Administrator ISSE 5 supporting Agile Software Development Engineering teams. This lead, senior position requires the ability to perform complex, multi-disciplined administration in DoD regulated secure lab and isolated network environments. The Linux Systems Administrator will participate in roadmap, architecture, implementation, and sustainment of operational network infrastructure supporting software teams. Candidate must be a self-motivated team player with excellent technical and communication skills, demonstrating senior level mentorship and architecture experience.
Essential Functions:- Integrate with a team of multidiscipline, multileveled Systems Administrators supporting Linux, Windows, and Network operations
- Assist Software Engineers and Site Reliability Engineers by providing Linux infrastructure services in support of development efforts
- Partner with Information Security team to provide secure, auditable Linux systems
- Plan and document operational processes, configurations, and diagrams required for management, Security operations, and the software teams
- Coach, mentor and train new team members
- Architecture design and implementation of Linux infrastructure services
- Assist leadership with business decisions aligned to demonstrate and safeguard the company by assuring that applicable laws and policies are followed
Qualifications:- Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and a minimum of 4 years of prior related experience. In lieu of a degree, minimum of 10 years of prior related experience
- Requires an active Secret clearance
- Linux server and workstation systems administration on Red Hat based distributions (RHEL10, RHEL9, RHEL8) to include
- Break/fix troubleshooting
- Provisioning via Satellite, Kickstart, or Forman
- Network infrastructure services setup and maintenance of DNS, DHCP
- Network storage services setup and maintenance of NFS, automounts, SMB/Samba
- Privilege escalation management
- Shell scripting in sh/bash or csh/tcsh
Preferred Additional Skills: - System hardening and auditing to RMF, CMMC, DFARS, NIST 800-171, NIST 800-53
- Configuration management with Ansible/Ansible Automation Platform, AWX, puppet, or chef
- Centralized authentication setup and user/group management (FreeIPA, Red Hat IDM, Kerberos, LDAP, NIS, AD)
- Scripting in modern languages python, perl
- Basic network administration of layer 2/3 switches
- Supporting multi-OS environments of Linux, Windows, Solaris, and embedded OS's
- Knowledge of DevOps tools (Kubernetes, OpenShift, TeamCity, Docker, Jenkins, Artifactory)
- Experience in building/utilizing CI/CD pipelines
- Experience with cloud platforms AWS, Azure
- Certifications RHCSA, RHCE, RHCSS, RHCDS, Security+, CISSP, CISM,
- Deep understanding of metrics and monitoring systems
- Experience performing log analysis and other network forensic investigations
- Deep expertise troubleshooting complex distributed systems
- Experience with creating and improving documented procedures and/or playbooks
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