Tier III Administrator

Company: GD Information Technology
Location: Chantilly
Posted on: April 1, 2026

Job Description:

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Business, Cloud Computing, Operations, Operations Processes, Technical Issues Certifications: None Experience: 3 years of related experience US Citizenship Required: Yes Job Description: GDIT is seeking a Tier III Administrator to provide support to Defense Information Systems Agency (DISA) Global Video Services (GVS) business area to enable the integration of video services into the Department of Defense. This position is a combination of remote (20%) and onsite (80%) support in Fort Meade, MD or Chantilly, VA. The Tier III support team provides daily coverage, 8:00am-5:00pm local time, Monday-Friday and may be asked to provide emergency/on-call Problem and Break-Fix support after hours. MEANINGFUL WORK AND PERSONAL IMPACT As a Tier III Administrator, you will work closely with your team and Lead to provide vital technical support for the integration of Global Video Services (GVS) such as Pexip into Microsoft 365 Teams. You will troubleshoot, maintain operational processes, and enhance customer satisfaction by resolving incoming tickets. You will handle incident response, working directly with users and coordinating with other teams to diagnose and resolve technical issues. Your role also encompasses reviewing incident databases, developing and maintaining routine operational metrics reporting, and providing detailed helpdesk metrics. What YOU'LL NEED TO SUCCEED (Required) Bring your technical expertise along with a drive for innovation to GDIT. The Mid-Level Tier III Administrator must have: Education: Bachelor’s Degree in Computer Science or related field. Clearance: Active Secret security clearance. Certification: CompTIA Security or similar for IAT Level II DoD 8570 certification Experience: 6 years of related experience. Expertise in developing, maintaining and contributing to technical and process documentation. Experience with M365 Teams Experience with administering and troubleshooting systems deployed in DoD Cloud Environments (IL4/IL5/IL6), including MS Office 365, and classified and unclassified networks. Ability to thrive in a highly collaborative, fast-paced, growth-focused environment. GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunities. Support: An internal mobility team focused on helping you achieve your career goals. Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off. Community: Award-winning culture of innovation and a military-friendly workplace. 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 $110,500 - $149,500. 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% T elecommuting Options: Hybrid Work Location: USA VA Chantilly Additional Work Locations: USA MD Fort Meade 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. 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

Keywords: GD Information Technology, Rockville , Tier III Administrator, IT / Software / Systems , Chantilly, Maryland