Senior Linux Systems Administrator

Company	Leidos
Location	Annapolis Junction, MD, USA
Salary	$112450 – $203275
Type	Full-Time
Degrees	Bachelor’s, Master’s, Associate’s
Experience Level	Senior, Expert or higher

Bachelor’s degree in computer science or related field plus a minimum of (11) years of relevant experience or a master’s degree with nine (9) years of relevant systems administration experience
An associate’s degree with ten (10) years of relevant experience or a high school diploma/GED with thirteen (13) years of relevant experience may be considered for individuals with in-depth experience that is clearly related to the position
IAT Level II Certification (Security +, CSA+, CCNA Security, etc.)
Active TS/SCI with Polygraph security clearance
Familiarity with Docker, MongoDB, and Elastic Search
Working knowledge of software-defined networks
Experience deploying and maintaining nginx; system monitoring platforms like OpenVAS, Prometheus and Grafana; SELinux and FIPS.

Design, maintain, monitor, and support operations and maintenance (O&M) activities of a large enclave comprised of various hardware, software and network components to include server architecture, virtual machines, managed switches, NAS, VLANs, and VPNs.
Develop and carry out strategies to migrate existing customers to new architecture and technology with minimal impact.
Administer network including installing, configuring and maintaining network devices; configuring various routing protocols; troubleshooting multi-hop connectivity, throughput, and latency; setting up firewalls.
Responsible for secure infrastructure and vulnerability corrections, data security, compliance, and backups and recovery.
Maintain SSPs, STE/STN requirements, Netseer, SEAR logging, patching, IAVMs, McAfee, and UAM.
Responsible for user-level support, including interacting with system-savvy developers and analysts, resolving network, computer, and virtual system issues & anomalies.
Maintain enclaved documentation (network diagram, system names, IP addresses, barcodes, etc.); provide monthly activity report to include system outages.