As the Senior Linux Systems Administrator, this individual will support, administer, maintain, and sustain virtual and physical Linux server platforms hosted in enterprise IT environments. In this role, the Sr. Linux Systems Administrator will maintain VMWare environment support the patching, compiling, securing, and troubleshooting of Linux servers in a heterogeneous environment. In addition, the Linux Administrator will perform system updates, provisioning, cloning and server configurations as well as be responsible for implementing changes in multiple environments from development to production. The Senior Linux Systems Administrator will also provide technical support for incident response, service degradations, outages, and other service interruptions.

REQUIRED QUALIFICATIONS/EDUCATION AND EXPERIENCE:

• Must have and maintain a Top-Secret Security clearance with TS/SCI eligibility
• Must have High School Diploma or equivalent
• Must have a valid 8570 Level - II Certification
• Minimum seven (7) years or more of experience in systems administration
• In-depth knowledge of Linux: RedHat, CentOS, Debian, etc.
• Knowledge of implementation and administration of VMWare
• Must have experience utilizing Docker and preferably Docker Swarm
• Experience in a 24/7 military or government IT environment
• Knowledge of systems software, hardware, and networking protocols
• Experience with scripting and automation tools
• Experiencing implementing IT strategy, plans, and SOPs
• Knowledge of implementing IT operations best practices, including knowledge of security, storage, data protection, and disaster recovery protocols
• Experience in Ports Protocols and Security Measures
• Demonstrated ability to provide outstanding customer service experience
• RHCT, RHCE or LPIC certification

• Performs full life cycle Linux Administrator operations for Primarily Ubuntu and Redhat - Install, Harden, Monitor, Maintain, Update, Backups
• Performs the daily health checks
• Completes and update system STIGs. Track POA&Ms and drive compliance
• Scripts and automates virtual and physical Linux Platforms
• Operation of Docker and preferably Docker Swarm
• Installs, operate, Maintain Applications running on Docker such as Zabbix, Grafana, Proxy / Reverse Proxy, LMS
• Works with security and DEVOPS teams to support the tools that run on Linux systems.
• Configure networking components as it relates to Linux systems - TCP/IP, Routing, DNS Server and Client
• Installs, protects, recovers, and modernizes the application hosting systems and capabilities (including servers, storage, databases, and other essential infrastructure) needed to provision enterprise IT applications to the user community
• Builds, sustains, patches, backup and recovery of physical Linux servers, virtual hosts, and virtual machines in multiple network environments
• Executes performance testing and optimization to meet performance specifications, monitor and report on system utilization rates, and service capacities
• Builds and sustains global policies in support of systems and users across all network enclaves
• Plans, executions, and documents mission-application baseline specification changes, to include changes to high-availability, fault-tolerant system designs, cluster-aware applications, client-server applications, web-enabled applications, and other n-tier application architectures
• Supports and executes migrations of server-hosted applications to a mix of Public and Private Cloud environments; verifies before and after services; and maps, builds, sustains, and validates interfaces between data systems
• Provides verification of data owners, authorized submitters, and logon identifications (IDs), existing level of privileges, and system security configurations for specific systems identified by the Government
• Installs, secures, and troubleshoots website-hosting servers, web-application servers, and websites by identifying system requirements, building systems, installing updates.
• Deploys applications, securing the systems from cyber security attacks, deploying application and website content updates, and configuring authentication and authorization to meet cyber security mandates
• Performs other tasks as required by OSC and the Government contracting office