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Sr. Systems Administrator- Herndon, VA - TS/SCI with poly

General Dynamics Information Technology • Herndon, VA • 10h ago

Req ID: RQ204842

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: Top Secret SCI + Polygraph

Public Trust/Other Required: None

Job Family: Systems Administration

Skills:

Backup and Disaster Recovery (BDR),Business Continuity,Information Technology (IT) Systems

Certifications:

CompTIA Security+ ce - ComTIA - ComTIA

Experience:

3 + years of related experience

US Citizenship Required:

Yes

Job Description:

Transform technology into opportunity as a Sr. Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. 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 Sr. Systems Administrator you will help ensure today is safe and tomorrow is smarter. Our work depends on the Systems Administrator Senior joining our team to support the administration, maintenance and support of the organization's IT systems and infrastructure.

We are seeking a highly skilled and experienced Senior Systems Administrator to join a classified project. The ideal candidate will have extensive experience managing and maintaining complex systems in a secure environment, with a strong background in cybersecurity, cross-domain solutions, and hardware-in-the-loop (HIL) testing.

Responsibilities:

Administer and maintain classified IT systems, ensuring their security, reliability, and performance.

Configure cross-domain solutions (CDS) , ensuring compliance with strict security policies for data transfer between different security levels.

Implement and enforce cybersecurity protocols and best practices to protect against threats and vulnerabilities.

Support and maintain systems used for hardware-in-the-loop (HIL) testing , ensuring test environments are configured correctly and running smoothly.

Work within an agile development environment , collaborating with engineers and project managers to support system deployments and updates.

Perform system backups, disaster recovery planning, and routine maintenance tasks.

Monitor system performance and troubleshoot issues to ensure high availability.

Required Skills:

Active TS/SCI with CI Poly clearance

Bachelor's degree in Computer Science or a related field (or equivalent experience).

8+ years of experience as a Systems Administrator in a classified or secure environment.

Must possess appropriate and current DoD Information Assurance (IA) Certification to be considered for employment; CompTIA Security+ CE, Net App, Red Hat are the preferred certification.

Proven experience with cross-domain solutions (CDS) administration.

Expertise in cybersecurity principles, tools, and best practices.

Experience with hardware-in-the-loop (HIL) testing environments and supporting technologies.

Knowledge of virtualization platforms (VMware, KVM) and secure system administration.

Relevant certifications are a must, such as CISSP , Security+ , or other vendor-specific certifications (e.g., MCSE, CCNA).

Experience working in an agile development environment .

Strong scripting skills (e.g., PowerShell, Bash, Python) for automation.

Excellent problem-solving skills and a strong attention to detail.

Preferred:

Knowledge of specific waveform protocols and their transport layers is highly desirable.

Hands-on experience with the operations, maintenance, and creation of cross-domain solutions (CDS).

Understanding of Zero Trust principles and segmentation in classified environments.

Familiarity with DevSecOps, software-defined networking (SDN), or IC cloud environments (C2S, SC2S).

GDIT IS YOUR PLACE:

? 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.

The likely salary range for this position is $103,700 - $140,300. 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.

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

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 50 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.

Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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