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Systems Administrator Expert

GDIT
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Annapolis Junction, MD, USA
Sep 23, 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:

Linux, ServiceNow Platform, Unix Operating Systems

Certifications:

None

Experience:

15 + years of related experience

US Citizenship Required:

Yes

Job Description:

Provides support for implementation, troubleshooting and

maintenance of information Technology (IT) systems. Manages IT

system infrastructure and any processes related to these systems.

Provides support to IT systems including day-to-day operations,

monitoring and problem resolution for all of the

client/server/storage/network devices, mobile devices, etc. Provides

Tier 1 (Help Desk) and Tier 2 (Escalation) problem identification,

diagnosis and resolution of problems. Provides support for the

escalation and communication of status to agency management and

internal customers. Provides support for the dispatch system and

hardware problems and remains involved in the resolution process.

Configures and manages UNIX, Linux and Windows operating systems

and installs/loads operating system software, troubleshoots, maintains

integrity and configures network components along with implementing

operating systems enhancements to improve reliability and

performance.

  • Provide support for implementation, troubleshooting and maintenance of IT systems.
  • Provide configuration management, implementation, and sustainment of compliance with applicable system security controls.
  • Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all of the client/server/storage/network devices, mobile devices, etc.
  • Implement IAVA security patches and insure patch status is recorded in appropriate systems of record.
  • Provide support for the escalation and communication of status to agency management and internal customers
  • Optimize system operations and resource utilization, and perform system capacity analysis and planning
  • Provide in-depth experience in trouble-shooting IT systems
  • Provide detailed analysis and feedback to agency management and internal customers for escalated tickets
  • Configure and manage UNIX, Linux and Windows (or other applicable) operating systems and installs/loads operating system software, troubleshoot, maintain integrity of and configure network components, along with implementing operating systems enhancements to improve reliability and performance
  • Communicate and coordinate with the Information System Security Officer (ISSO) and Information System Owner (ISO) regarding system changes as part of the Change and Configuration Management Process
  • Support the ISO by completing required milestones of Plan of Action & Milestones (POA&M)as directed and coordinate completion status with the ISSO to reflect status within the Source System of Record for Security Authorizations
  • Ensure IT Assets remain compliant with Identity & Access Control Management (ICAM) policy.
  • Provide Tier 2 (Escalation) problem identification, diagnosis and resolution of problems
  • Support the design of systems, mission architecture and associated hardware
  • Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA)
  • Analyze and resolve complex problems associated with server hardware, applications and software integration
  • Support the design of systems, mission architecture and associated hardware
  • Possess a working knowledge and understanding of system administration interdependencies as part of the Service Oriented Architecture (SOA)
  • Analyze and resolve complex problems associated with server hardware, applications and software integration

WHAT YOU’LL NEED TO SUCCEED:

  • Bachelor’s degree in a technical discipline from an accredited college or university is required. Four (4) years of additional SA experience may be substituted for a bachelor’s degree.
  • Fifteen (15) years experience as a SA in programs and contracts of similar scope, type, and complexity is required.
  • Six (6) years of experience with Service Management (ITSM) is required.
  • ITIL 4 platform certification is required.
  • Four (4) years of experience with ServiceNow platform is required.
  • Two (2) years’ experience integrating ServiceNow with other applications is required.
  • Security Clearance Level: TS/SCI w/Poly
  • Location: On Customer Site
  • US Citizenship Required

GDIT IS YOUR PLACE:

● Full-flex work week to own your priorities at work and at home

● 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

#ITPolyMD 

The likely salary range for this position is $148,032 - $200,277. 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:

Less than 10%

Telecommuting Options:

Onsite

Work Location:

USA MD Annapolis Junction

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

Job ID

RQ228966

Security Clearance

TS/SCI
About GDIT
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