Linux Systems Administrator

NOTE:

• Secret or above clearance is Highly Preferred. Interim is acceptable to start though.

Job Summary:

Looking for a Linux Systems Administrator. This candidate will be working 80% on a Linux platform and 20% on Windows. Candidate should have in depth Linux experience. A successful candidate will be adept at working within a small, fast-moving team.

Responsibilities:
Looking for a Linux Systems Administrator with approximately 5 years of Linux administration experience
Domains: IT Infrastructure, Networking, system configuration management, system troubleshooting.
Responsible for management, administration, and support of all Client IT systems infrastructure in Group.
Support additional technologies as they are adopted by the Laboratory.
Responsible for vulnerability remediation on secure and unclassified Laboratory systems. Addressing Cat 1, 2, 3 issues in a timely manner
Recognizing and troubleshooting issues with developer s machines as they occur across a variety of Operating Systems. Windows, Linux, etc.
Perform all related duties as assigned.

Required Skills:
Operating Systems: RedHat Enterprise Linux, VMware
Hardware: Dell
Software/applications: RedHat Satellite, McAfee; Enterprise Central Logging/Splunk, LDAP, VMware vCenter/ESXI/vSAN, Gitlab.
Networking applications and protocols: TCP/IP, DNS, NTP, SSH, FTP and HTTP/S.
Programming Languages: Ansible, Shell Scripting, PowerShell or Bash.
Skilled at centralized authentication (SSSD, IDM, Active Directory) and centralized sudo administration via IDM
Responsible for configuring and maintaining (physical and virtual) servers and researcher workstations
Install, update, and troubleshoot systems/servers.
Develop and document systems administration standard operating procedures.
Plan, execute, and verify data redundancy and system recovery procedures.
Conduct periodic system maintenance including cleaning (both physically and electronically), disk checks, routine reboots, data dumps, and testing.
Provide ongoing optimization and problem-solving support

Preferred Skills:

Experience managing classified IT systems, STIGs, SCAPS, RMF. This experience is a bonus
Certification(s) in one or more of the following disciplines: Red Hat, VMWare, Certified Information Systems Security Professional (CISSP); CompTIA Security+; Linux Professional Institute Certification. Candidate will be required to obtain a CompTIA Security+ certification within 3-6 months of starting if they do not have one when assignment begins.
Experience managing system/server resources including performance, capacity, availability, serviceability, and recoverability.
Mac experience
Experience with virtual machines. (e.g., VMWare vSphere, Citrix XenDesktop/Server, Amazon Elastic Compute Cloud, etc.).
Network administration experience is also desirable which includes managing data center and small network configurations: switches, routers, firewalls, modern software management and monitoring tools, some knowledge of automation technique.
Experience maintaining directory services. (e.g., Microsoft Active Directory, LDAP, etc.).