Job Description

At BlueHalo, we don’t just witness the future of national security – we create it. We're on the search for a System Administrator  to embark on challenging, mission-critical projects at  Annapolis Junction , 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.

The Senior Linux Systems Administrator shall oversee, maintain and administer day-to-day operation of all computer networks including hardware and software and support and training. Diagnose hardware and software problems and replace defective components. Provide the first-level of computer and network support to the entire team to ensure maximum effectiveness and efficiency.

You'd like to do this:  

• 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.

You’re required to have this:

• 10+ years of experience as a Linux Systems Administrator with a Bachelor's degree in a related field.


• 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.


• Familiarization with cellular modem on Linux platforms.


• Familiarization with VMware ESXi, vCenter, etc.


• Strong Linux skills


• KVM


• Docker


• Nagios


• VPNs such as WireGuard, OpenVPN, OpenSwan

Salary Range: $150,000 - $250,000

The BlueHalo pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Determination of official compensation or salary relies on several factors including, but not limited to, level of position, job responsibilities, geographic location, scope of relevant work experience, educational background, certifications, contract-specific affordability, organizational requirements, alignment with local internal equity as well as alignment with market data.

Our compensation package also includes components designed to support employees’ total well-being, which should be considered when evaluating our competitive benefits package. These benefits include health insurance, life insurance, disability, company holiday and paid time off, parental leave, 401(k) company match and contributions, professional development/training reimbursements, and other work/life programs.

Licenses & Certifications

• TS//SCI w/ Polygraph

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