Linux Sys/Admin - TS/SCI

System Engineering Bethesda, Maryland


Xcelerate Solution is seeking a Linux Systems Administrator supporting our client’s overall mission to design and implement a data centric architecture that leverages cloud-based computing, artificial intelligence (AI), machine learning (ML) over cross-domain transfer systems. 

The Linux Systems Administrator will be supporting DIA-NMEC under our 10-year DOMEX Technology Platform (DTP) contract. Have impact as part of a mission focused, solutions oriented, and adaptive team that values innovation, collaboration, and professional development. Your job will be to bring together, Linux (primarily) and windows systems administration, systems maintenance, and systems performance optimization. You succeed through effective cross functional collaboration in areas such as, but not limited to, development, product, and QA in a dynamic and fast paced environment. While most work is conducted on-site at our client location in Bethesda, MD, we offer a flexible schedule and, occasionally, some tasks may be performed remotely. Percentage of remote work will vary based on client requirements/deliverables. Come join our award-winning organization and work with some of the most talented and brightest minds in the GovCon industry.

Bethesda, MD 



  • Perform Linux builds, installs, configuration, administration, and troubleshooting of Linux servers to include base configuration, security and system patching, performance monitoring in physical and virtual environments
  • Provide operating system hardening and system patching
  • Manage, maintain, configure, and deploy system integration tools such as Kubernetes, Rancher, Helm
  • Develop scripts to support patching, configuration, and automate other infrastructure tasks
  • Perform disaster recovery planning and testing
  • Improve existing infrastructure to incorporate latest technology best practices and cross application integrations

Minimum Requirement 

  • Bachelor’s Degree and 6+ years of prior relevant experience or Masters with 3+ years of prior relevant experience
  • 3+ years of experience as a Linux Administrator
  • Must possess an Active Top Secret SCI clearance and ability to obtain TS/SCI with CI Poly
  • Working knowledge of COTS and FOSS storage solution
  • Experience with Linux performance tuning, optimization, and security configuration.
  • Experience with highly available and scalable systems and applications
  • Expertise in configuration, administration, and troubleshooting of Linux (RHEL/CentOS, Ubuntu)
  • Experience with Patching: yum repositories, APT repositories
  • Experience with DevOps practices and tools including Continuous Integration/Continuous Delivery (CI/CD) tools and practices, especially Gitlab or Jenkins
  • Experience with Agile practices
  • Experience with Configuration Management and IaC tools such as Salt or Ansible
  • Strong verbal and written communication skills
  • Enthusiastic with the ability to work well on a team and a self-starter who can work on their own

Preferred Qualifications

  • Experience with systems at scale
  • Knowledge of Atlassian software suite tools such as JIRA, JIRA Service Desk, and Confluence
  • Experience with Windows Systems Administration and troubleshooting Active Directory
  • Experience with ELK clusters, including Elasticsearch, Logstash, Kibana and *beats
  • Experience maintaining AI/ML environments (NVIDIA hardware and software)
  • Experience maintaining large data (Petabyte) environments and storage solutions
  • Experience with advanced Linux network hardware (eg: Mellanox Network Cards)
  • Experience working in an air-gapped/not-connected-to-the-internet environment

About Xcelerate Solutions:
Founded in 2009 and headquartered in McLean, VA, Xcelerate Solutions ( is one of America's fastest-growing companies. Xcelerate’s culture is defined by our diversified workforce of dynamic and versatile professionals, supported with growth and development opportunities that contribute to individual and company growth. This strong commitment to our employees has been recognized by our inclusion on the Washington Business Journal’s “50 Best Places to Work” list as well as being a “Great Place to Work” certified company with a 4.6 star, and a 99% CEO approval Glassdoor rating. Come find out why Xcelerate Solutions is one of the DC Metro top employers!

Xcelerate Solutions is an Equal Employment Opportunity/Affirmative Action Employer. We evaluate qualified applicants without regard to race, color, national origin, religion, age, equal pay, disability, veteran status, sex, sexual orientation, gender identity, genetic information, or expression of another protected characteristic. As part of this commitment to the full inclusion of all qualified individuals, Xcelerate provides reasonable accommodations if needed because of an applicant's or an employee's disability.

Pay Transparency Notice: Xcelerate Solutions will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.