Senior Linux System Administrator - Fully Cleared

$105,000 - $200,000/Yr

Collabraspace - Linthicum Heights, MD

Full-time - Mid Level

Linthicum Heights, MD

Professional, Scientific, and Technical Services

About the position

The Senior Linux System Administrator at BlueHalo plays a crucial role in ensuring the reliability, availability, and security of mission-critical systems that impact national security. This position involves working independently to monitor, troubleshoot, and maintain various environments, while also engaging in configuration management and security practices. The role is integral to supporting the development and operational continuity of systems that contribute to national security initiatives.

Responsibilities

• Ensure the reliability, availability, and security of the solution by proactively monitoring the system, troubleshooting, and resolving issues.
• Maintain configuration management and baseline control of development, test, pre-production, and production environments.
• Conduct regular security scans, analyze results, and implement resolutions including testing of new hardware and software.
• Operate and maintain the solution, including patching of operating systems and COTS/FOSS/GOTS applications.
• Configure, manage, and maintain components of the solution such as application servers, load balancers, databases, and operating systems.
• Deploy systems in the Lab environment, integrate with other systems, and perform testing and validation.
• Manage, track, and maintain configuration items including licenses, SSL certificates, and the hardware/software baseline.
• Support baseline deployments, upgrades, and updates to the production environment including the installation and configuration of new software and hardware.
• Create, maintain, and implement detailed documentation and standard operating procedures.
• Perform trend analysis on component failures, network/node outages, and system performance parameters.
• Interact with software and hardware vendors to evaluate vendor products and make recommendations for purchases.
• Work with network engineers and developers to troubleshoot environment issues as necessary.
• Escalate support issues to vendors as necessary and coordinate resolution.

Requirements

• Bachelor's degree in Information Technology, Computer Science, or a relevant technical discipline and 8 to 10+ years of relevant experience.
• Experience applying DevOps concepts and tools to automate repetitive tasks and ensure baseline consistency across multiple environments.
• Experience installing, configuring, securing, deploying, managing, monitoring, and maintaining a variety of complex hardware and software products across multiple environments.
• Thorough knowledge of TCP/IP networking.
• Experience supporting, installing, and configuring enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS).
• Ability to work independently in a fast-paced environment.

Benefits

• Health insurance
• Life insurance
• Disability insurance
• Company holiday and paid time off
• Parental leave
• 401(k) company match and contributions
• Professional development/training reimbursements
• Other work/life programs