Senior Linux System Administrator - Fully Cleared

$105,000 - $200,000/Yr

BlueHalo - Linthicum Heights, MD

Full-time - Senior

Linthicum Heights, MD

Computer and Electronic Product Manufacturing

About the position

The Senior Linux System Administrator at BlueHalo is responsible for ensuring the reliability, availability, and security of mission-critical systems that directly impact national security. This role involves proactive monitoring, troubleshooting, and maintaining various environments, while also managing configuration and conducting security scans. The position requires a high level of independence and expertise in managing complex hardware and software products across multiple environments.

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 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 products and make recommendations for purchases.
• Work with network engineers and developers to troubleshoot environment issues as necessary.
• Escalate support issues to vendors and coordinate resolution.

Requirements

• Bachelor's degree in Information Technology, Computer Science, or a relevant technical discipline and 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