Demo

Systems Administrator Senior_TS/SCI with Polygraph

General Dynamics
Springfield, VA Full Time
POSTED ON 9/7/2026
AVAILABLE BEFORE 10/8/2026
Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Top Secret SCI Polygraph

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

Public Trust/Other Required:
None

Job Family:
IT Infrastructure and Operations

Job Qualifications:

Skills:
Backup and Recovery, Critical Systems, Information Technology (IT) Systems
Certifications:
CompTIA Security CE | CompTIA - CompTIA
Experience:
3 years of related experience
ship Required:
Yes

Job Description:

SYSTEMS ADMINISTRATOR SENIOR

Advance how our customers operate while you advance your career. Join GDIT as a Systems Administrator Senior and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT
As a Systems Administrator Senior, the work you'll do at GDIT will be impactful to the mission of our customer.
  • Monitors, administers, and restores mission IT systems. Administers and repairs servers, databases, KVM devices, workstations, and complex visual display systems across multiple classified and unclassified networks. Monitors, creates, tracks, manages, resolves and closes tickets including incidents, problems and RITMs. Works with vendors to resolve Tier 4 issues. Administers and coordinates hardware/software IT system improvements and/or enhancements. Monitors IT systems utilizing industry leading processes, technologies, and tools. Provides timely resolution to tickets using processes, procedures, knowledge articles, and troubleshooting skills. Works and coordinates with others to accomplish mission goals for IT systems. Plans implementation of enhancements to mission IT systems.
  • Oversees the installation, configuration and maintenance of servers, storage, and workstations including physical and virtual environments.
  • Collaborates with stakeholders to understand business needs and requirements and provide appropriate solutions.
  • Monitors systems performance and troubleshoots moderate to complex issues to ensure high availability and reliability.
  • Performs maintenance such as patch management, updates and backups.
  • Plans and executes systems upgrades and hardware/software installations.
  • Ensures systems are updated with latest security patches and software updates.
  • Implements and maintains security measures to protect systems from unauthorized access and vulnerabilities.
  • Conducts security audits and assessments to ensure compliance with organization policies and regulatory requirements.
  • Manages and tests backup and recovery procedures to ensure data integrity and availability.
  • Develops and maintains disaster recovery plans for critical systems and services.
  • Participates in disaster recover drills and business continuity planning.
  • Provides support to end users and other IT staff by resolving complex hardware, software and system related issues.
  • Maintains detailed documentation of system configurations, procedures and changes.
  • Creates reports on system performance, security incidents and other key metrics.
  • Coordinates with other IT teams to ensure coordinated delivery of IT services.
  • Provides recommendations for system improvements based on analysis and industry best practices.
  • May assist in the development of IT policies and procedures.
  • Participates in special projects as required.

WHAT YOU'LL NEED TO SUCCEED
Bring your technology expertise and drive for innovation to GDIT. The Systems Administrator Senior must have:
Education: Technical Training, Certification(s) or Degree
Experience: 3 years of related experience

Required Technical Skills:
  • Must possess appropriate and current DoD Information Assurance (IA) Certification to be considered for employment: CompTIA Security CE is the minimum certification
  • Experience with ThinkLogical IT systems preferred
  • Proficiency in managing server environments such as Windows/Linus.
  • Experience with Active Directory and other core IT services.
  • Familiarity with backup and disaster recovery best practices.
  • Strong problem-solving skills to diagnose and resolve system issues and security threats quickly.

Security Clearance Level: TS/SCI with Polygraph
Required Skills and Abilities:
  • Must have experience with Intelligence Community customer
  • Must have experience working with mid and senior level government
  • Must have experience supporting classified government networks
  • Certifications in networks highly desired

Location: On Customer Site
ship Required

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.

OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

The likely salary range for this position is $106,250 - $143,750. 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.

Scheduled Weekly Hours:
40

Travel Required:
10-25%

Telecommuting Options:
Onsite

Work Location:
USA VA Springfield

Additional Work Locations:

Total Rewards at GDIT:
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.

Our Identity Verification Process:
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

About Our Work:
We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 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 mission-ready capabilities in AI, cloud, cyber and software development.

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

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Salary : $106,250 - $143,750

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