Sr Linux Systems Engineer - Active Top Secret required

Clearance Level
Top Secret
Systems Engineering
Washington, District of Columbia
Onsite Workplace
Key Skills For Success



Linux Environments

REQ#: RQ141769
Requisition Type: Regular
Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Sr. Linux Systems Engineer – Active Top Secret Required

Design, deploy, integrate and maintain Linux technologies to advance the mission as a SENIOR LINUX SYSTEMS ENGINEER with GDIT. Your work in the integration of Linux resources into a primary Windows Infrastructure across all domains will help our clients overcome evolving demands and missions. Own the opportunity to accelerate digital modernization for our clients as you accelerate your career.

At GDIT, people are our differentiator. As a Senior Linux Systems Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Senior Linux Systems Engineer joining our team to bring professionalism and initiative to a fast-paced environment that offers extensive options for training, certification, and career advancement. When we succeed, you succeed and together our best becomes better.


  • Maintain and troubleshoot Linux systems on a day-to-day basis.

  • Ensure system lifecycles are performed (e.g. Ubuntu 18.04 LTS -> 20.04 LTS and so on with OS upgrades).

  • Integrate Linux Systems (currently, RHEL 7/8 and Ubuntu systems) into a primary Windows environment (workstations & servers) where authentication, authorization, and accounting actives are controlled by Active Directory with PKI certificates and Single Sign On.

  • Provide administrative access based on group security, applied with least privilege and other permission access management techniques.

  • Ensure patches are maintained across a diverse Linux environment (e.g. Ubuntu, RHEL7/8, CentOS, etc.) in a heavily automated manner, where possible.

  • Configure new Linux systems for customer use and ensuring that initial configurations meet required enterprise baselines & controls (e.g. proper agents installed, proper configs, etc.).

  • Ensure that already-provisioned Linux systems are kept in compliance with baseline requirements & ever-changing enterprise policy (e.g. equivalent to Group Policy in the Windows realm for ongoing compliance updates).

  • Develop an operating system lifecycle plan with integration of DoD STIGs and other recommended security standards.

  • Integrate Linux systems with other enterprise tooling (e.g. ACAS, Splunk, SolarWinds, Backup systems, etc.).

  • Monitor all solutions integrated via a centralized alerting system (Solarwinds).

  • Certify log management and forwarding to a single repository (Splunk).


  • Education: BS in Computer Science, Information Systems, Engineering, Mathematics, or other related scientific or technical discipline required. 

  • Required Experience: 3 – 8 years of relevant experience supporting projects of similar size, scope and complexity. VMWare management/ administration experience. Relevant experience can be substituted for education.

  • Required Technical Skills: Must be possess or be able to acquire DoD 8140 IAT Level II compliance (CompTIA Security+, etc.) upon hire. 

  • Security Clearance Level: Active Top Secret that has been adjudicated within the last 5 years is required.

  • Required Skills and Abilities: Highly motivated, self-starter; ability to work alone (90% of work is individual); heavy research and development when necessary.

  • Location: Washington, District of Columbia; limited telework may be available


  • 401K with company match

  • Comprehensive health and wellness packages

  • Internal mobility team dedicated to helping you own your career

  • Professional growth opportunities including paid education and certifications

  • Cutting-edge technology you can learn from

  • Rest and recharge with paid vacation and holidays



Work Requirements
Years of Experience

3 + years of related experience

* may vary based on technical training, certification(s), or degree

Travel Required

Less than 10%

About Our Work

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

COVID-19 Vaccination

GDIT does not have a vaccination mandate applicable to all employees. To protect the health and safety of its employees and to comply with customer requirements, however, GDIT may require employees in certain positions to be fully vaccinated against COVID-19. Vaccination requirements will depend on the status of the federal contractor mandate and customer site requirements.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.