Systems Administrator, Senior

Type of Requisition:
Regular

Clearance Level Must Currently Possess:
Secret

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

Public Trust/Other Required:
None

Job Family:
Systems Administration

Job Qualifications:

Skills:
Information Technology (IT) Systems, Infrastructure Support, Virtual Environments
Certifications:
None
Experience:
5 + years of related experience
ship Required:
Yes

Job Description:

GDIT is seeking qualified candidates to support the Missile Defense Agency (MDA) Integrated Research and Development for Enterprise Solutions (IRES) contract.

Qualified candidates will provide integrated solutions supporting concurrent test, training, and operations (CTTO) within the Missile Defense Integration and Operations Center (MDIOC) mission execution platform and enterprise communications and information technology (IT) environment.

Be a part of the GDIT Team that solve some of the world's most complex technical challenges! General Dynamics Information Technology (GDIT) is seeking a Systems Administrator, Senior to support the IRES program in Huntsville, Alabama.

Duties Include:

• Manage the day-to-day operation and health of end user device platforms (Windows, macOS, iOS/Android) and associated services such as device management, software delivery, and remote access
• Administer and optimize tools such as Microsoft Intune, Autopilot, SCCM, JAMF, and other endpoint management platforms for policy enforcement, compliance, and automation
• Oversee the patching, packaging, and deployment of applications and system updates across the device estate to maintain security and functionality
• Serve as an escalation point for complex support issues related to user devices, OS performance, and workplace tools. Troubleshoot and resolve incidents in collaboration with Service Desk and Security teams
• Monitor device compliance, performance, and usage using analytics tools. Generate regular operational reports and recommend improvements where necessary
• Ensure device platforms are compliant with internal security policies and regulatory requirements. Implement security configurations and respond to audit findings as needed
• Maintain detailed technical documentation, SOPs, and runbooks
• Contribute to the knowledge base and mentor junior team

Basic Qualifications:

• Bachelor's degree in Information Technology, Computer Science, or a related field; additional years of experience may be considered in lieu of degree
• 5-7 years of experience in system administration, IT operations, or infrastructure support with a focus on end user technologies.
• Deep technical expertise in Windows 10/11, macOS, and mobile platforms.
• Hands-on experience with Intune, Autopilot, SCCM, JAMF, or other MDM/UEM platforms.
• Strong scripting and automation skills (e.g., PowerShell, Bash) to streamline operational tasks.
• Familiarity with Active Directory, Azure AD, Group Policy, and identity management concepts.
• Solid understanding of patch management, software deployment, and endpoint security best practices.
• Experience supporting virtual desktop environments (e.g., AVD, Citrix, VMware Horizon) is a plus.
• Strong documentation, communication, and cross-functional collaboration skills.
• Experience working in mid-to- large enterprise environments or regulated industries is an advantage.
• Applicable DOD 8140 and professional certifications
• Certifications such as Microsoft Certified: Endpoint Administrator Associate, JAMF 200/300, ITIL Foundation, CISSP, Security + or
  similar.
• Active SECRET clearance with eligibility for TOP SECRET/SCI

WHAT CAN GDIT OFFER YOU?

• Excellent customizable health benefits (Medical, Dental and Vision)
• 401K with company match
• Educational Assistance and eLearning
• Flexible work week
• Internal mobility team dedicated to employee advancement
• Rewards and Recognition programs
• Innovative and collaborative environment encouraging highly motivated critical thinking

The likely salary range for this position is $108,979 - $147,443. 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 AL Huntsville

Additional Work Locations:
USA CO Colorado Springs

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.

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.

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Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans