At BlueHalo, we don’t just witness the future of national security – we create it. We're on the search for a Senior Linux System Administrator to embark on challenging, mission-critical projects at Laurel, MD, directly impacting the nation’s security and intelligence mission. In our team of problem solvers, innovators, technologists, and operators, you'll be at the forefront of driving meaningful change and making an enduring impact.

Are you ready to advance your career and make a significant impact in national security? Join us at BlueHalo, where your work contributes to groundbreaking solutions and shapes the future. Take the next step in your career journey and apply today!

• Work independently to ensure the reliability, availability and security of the solution by proactively monitoring the system, troubleshooting, and resolving issues to ensure high availability and continuity of operations.
• 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 (application servers, load balancers, databases, operating systems, etc.).
• Deploy systems in the Lab environment, integrate with other systems, 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 maintain 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 to purchase hardware and software.
• Work with network engineers and developers to troubleshoot environment issues as necessary.
• Escalate support issues to vendors as necessary and coordinate resolution.

• Bachelor's degree in Information Technology, Computer Science, or a relevant technical discipline and 10+ years of relevant experience; Additional experience, education and training may be considered in lieu of degree.
• 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.

TS/SCI with Poly

"BlueHalo is committed to hiring and retaining a diverse workforce. We are proud to be an equal opportunity employer. Employment policies and decisions on employment and promotion are based on merit, qualifications, performance, and business needs. The decisions and criteria governing the employment relationship with all employees are made in a nondiscriminatory manner, without regard to race, religion, color, national origin, sex, age, physical or mental disability, sexual orientation, gender identity, veteran status, or any other factor determined to be unlawful by federal, state, or local statutes. If you are an individual with a disability and would like to request a reasonable workplace accommodation for any part of the employment process, please send an email to HR@bluehalo.com. Please indicate the specifics of the assistance needed. This option is reserved only for individuals who are requesting a reasonable workplace accommodation. It is not intended for other purposes or inquiries."