System Administrator, Linux

Nakupuna Companies•Fort Belvoir, VA

1d•Onsite

About The Position

Nakupuna Solutions is seeking a System Administrator, Linux. The System Administrator, Linux is responsible for installing, configuring, and supporting computer systems and networks to ensure availability, performance, and security. This role may involve managing GovCloud environments, standalone environments, as well as connections to external networks such as NIPRNET, SIPRNET, DREN, JWICS, and NSA.

Requirements

Bachelor’s degree in computer science, IT, or related field
Required certifications including Security+ CE.
5+ years of system administration experience
Active TS/SCI security clearance required.
Must be a U.S. citizen.

Nice To Haves

Other certifications desired but not required, such as: SecurityX / CASP+ CCNP Security CISA FITSP-O GICSP SSCP
Relevant certifications such as: Red Hat Certified System Administrator (RHCSA) CompTIA Server+ VMware Certified Professional (VCP)

Responsibilities

Install and configure Linux environments and systems including back-end processes and scripts.
Ensure configurations are in line with C5ISR policies and procedures for systems across various networks (DREN, NIPRnet, SIPRnet, JWICS, laboratory networks), and that permissions, policies, performance, and reviews are consistent with standards.
Monitor system performance and availability.
Implement system security measures; review logs and identify issues.
Provide administration, refactoring support, architecture, planning, and execution of required cloud computing aspects, such as building and maintaining registered applications in an Amazon Web Services or Microsoft Azure environment.
Maintain system documentation.
Conduct system upgrades and patches.
Configure and maintain storage systems.
Provide support for registered application development environments, including setting up new servers, configuring services as needed, decommissioning legacy or unnecessary servers, configuring registered application environments, and testing and troubleshooting as required.
Coordinate support responses with the local Network Enterprise Center (NEC) for the submission and management of ticket requests to NEC regarding issues related to virtual machine creation, performance issues, changes in hardware resource allocation, and POAs, waivers, and exceptions.
Align managed systems concerning Linux operating systems, images, containers, PODs, Nodes, or other applicable cloud computing technologies, registered applications, and supporting application technologies to current DISA Security Technical Implementation Guides (STIG)/security requirements guides (SRG), and applicable guidance concerning the cybersecurity posture of administered information systems within the applicable network in which the systems in question reside.
VMware ESXi server administration support to include but not limited to: creating and updating VM templates, building new servers as needed, and managing resource allocation on ESXi host.
Coordinate with DREN Network Operations Center (NOC) to troubleshoot connectivity issues and DREN network configuration changes/updates.
Provide required support to ACAS scans/ IA vulnerability alert compliance/McAfee ESS/ server to include, but not limited to: approving and managing updates, remediating findings of IA compliance scans, ensuring clients are updated and compliant, and responding to fragmentary orders and operational orders.
Apply current operating system patches and security patches electronically or manually to meet Cybersecurity compliance.