Sr Principal Systems Engineer - Active Top Secret Required

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

Complex Systems


Hardware Security

Microsoft Windows Server

Systems Engineering

REQ#: RQ173785
Public Trust: SSBI (T5)
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

Job Description Summary:

Senior Principal Systems Engineer

Seize your opportunity to make a personal impact as a Senior Principal Systems Engineer with GDIT. A career in systems engineering means designing and implementing the systems that matter most. We’re seeking a highly skilled systems engineer who has the business knowledge and technical expertise to implement strategies, evaluate products, and build upon an infrastructure that supports the changing needs of our customers. In this role, the systems engineer will design, develop, and integrate complex work systems for every stage of a lifecycle while advocating long term technical vision. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate. 

At GDIT, people are our differentiator. As a Senior Principal Systems Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a 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. 

How a Senior Principal Systems Engineer Will Make an Impact:

  • Manage and monitor all infrastructure and systems installations, including configuration, testing, and maintenance

  • Implement and maintain strategies for backup, security, and redundancy

  • Identify potential issues and implement solutions proactively

  • Craft custom scripts that reduce the need for human interaction

  • Enable faster and smarter business processes and develop meaningful analytics

  • Engage regularly with upper management, providing reports on project status, activities, and achievements

  • Create and maintain documentation as it relates to system configuration, mapping, processes, and service records.

  • Ensure compatibility and interoperability of in-house computing systems.

  • Coordinate and perform in-depth tests, including end-user reviews, for modified and new systems.

  • Monitor and test system performance; prepare and deliver system performance statistics and reports.

  • Provide orientation and training to end users for all modified and new systems.

  • Gather high level requirements and translate them into consumable tasks for System Engineers

  • Ensure mission critical applications are highly available under adverse conditions

  • Promote modern methodologies to increase efficiency and consistency

  • Contribute and be an advocate for long-term technical vision

  • Apply awareness of existing tools and capabilities during the evaluation of new tools

What You’ll Need to Succeed:

  • Education: BS in Computer Engineering, Computer Science or related technology field. Experience may be substituted for education.

  • Required Experience: Minimum of 17 years’ related technical experience to include the following: 

    • Developing methods for deploying development environments that mirror production environments for risk mitigation in test and evaluation of software and hardware solutions.

    • Troubleshooting complex system hardware and software issues

    • Practical use of DevOps and/or DevSecOps, and/or GitOps methodologies

    • Solid knowledge of protocols such as DNS, HTTP, LDAP, ICMP, SSH and SNMP

    • Solid knowledge of Networking, VLANs, Firewalls, Load Balancers, and addressing schemes

    • Skilled in system administration tasks such as file system, network, and account troubleshooting

    • Knowledge of repository management practices, patch administration, and vulnerability remediation

    • Thorough technical documentation including diagrams

    • Successful implementation of new technology in complex environments

    • Utilization of centralized log management and analysis tools

    • Building systems within air-gapped environments without impeding automation

    • Implementation of zero-trust practices across the whole stack


Work Requirements
Years of Experience

15 + years of related experience

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


CompTIA - Security+ - CompTIA

Travel Required

Less than 10%


U.S. Citizenship Required

Salary and Benefit Information

The likely salary range for this position is $169,065 - $228,735. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.
View information about benefits and our total rewards program.

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

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.