Apply on Employer Site

Cape Fox Federal Contracting Group · 1 month ago

Senior Systems Administrator (Unix/Linux)

Dahlgren - NSWC - Dahlgren, VA 22448 US (Primary)

Full-time

Onsite

Senior Level

$132K/yr - $149K/yr

6+ years exp

Cape Fox Federal Contracting Group is seeking a highly skilled Senior Systems Administrator (Unix/Linux) to support a federal government client. The role involves administering and maintaining Unix and Linux-based environments, ensuring system reliability, availability, and compliance with cybersecurity standards while supporting mission-critical operations.

ConstructionConsultingCyber SecurityHealth CareInformation TechnologyManagement ConsultingProfessional ServicesProject ManagementTraining

No H1B

Security Clearance Required

U.S. Citizen Only

Responsibilities

Provide comprehensive system administration, configuration, and maintenance for servers, endpoints, and operating systems, including Windows, Linux, UNIX, macOS, Android, and iOS

Configure, patch, and upgrade operating systems, applications, and associated hardware to maintain optimal performance and ensure compliance with cybersecurity requirements

Perform database tuning, monitoring, and security, along with upgrades and software installations, to ensure reliability, scalability, and data integrity

Migrate existing databases and applications across different hardware platforms and operating systems, ensuring minimal downtime and full data preservation

Manage user accounts, permissions, and access controls to safeguard information systems and enforce least-privilege principles

Conduct system performance monitoring, diagnostics, and capacity planning to ensure availability and responsiveness of critical systems

Implement and maintain backup, recovery, and continuity of operations (COOP) procedures to protect mission-critical data and systems

Support installation, configuration, and administration of virtualization platforms (e.g., VMware, Hyper-V) and cloud-hosted systems

Collaborate with cybersecurity personnel to apply DISA STIGs, perform vulnerability scans, and remediate findings per RMF and DoD security directives

Ensure full compliance with DoD/Navy accreditation and authorization (A&A) standards and policies

Monitor system logs, alerts, and performance metrics; identify issues and perform root-cause analysis to prevent recurrence

Provide expert technical support and troubleshooting for system outages, application failures, and network connectivity issues

Prepare and maintain system documentation, configuration baselines, SOPs, and change control records in approved ITSM tools (e.g., ServiceNow, Remedy)

Participate in Change Control Board (CCB) and Configuration Management (CM) meetings to plan and coordinate upgrades, patches, and technical changes

Assist in integration of new technologies, digital modernization efforts, and infrastructure automation initiatives

Oversee hardware lifecycle management, including server refresh, decommissioning, and component replacement planning

Provide training and mentoring to junior administrators and technical staff to promote knowledge transfer and operational consistency

Qualification

Unix/Linux administrationInformation Assurance certificationNetwork protocols (TCP/IP)System security toolsScripting languagesTroubleshooting skillsTechnical leadershipAttention to detail

Required

Six (6) years of professional experience in Unix and/or Linux system administration of networks and software systems

Experience in system backup and recovery; basic software management; security management and library management; installation and configuration of hardware; operational systems and COTS software; operating computer systems in different operating environments; and sizing, performance, tuning, hardware/software/network trouble shooting, and resource allocation

Qualified experience in different network protocols, including TCP/IP, and major network security tools such as firewalls, knowledge of computing and networking vulnerabilities, attack methods, and latest detection methods

Proficiency with network protocols (e.g., TCP/IP), system security tools, and scripting languages is often required

Must hold a Master's degree in Electrical/Electronic/Computer Engineering, Computer Science, or Information Systems

Must have Information Assurance Technical Level III certification

Must hold an active Top Secret clearance

Must have authorization to work in the United States as defined by the Immigration Reform Act of 1986