Currently, ManTech is seeking a motivated, career and customer-oriented **Staff Systems Administrator** to join our team in **Crystal City, VA.** **Responsibilities include, but are not limited to:** + Maintain/troubleshoot Windows servers and workstations, both on-site and remote + Perform Windows system administrative support to include adding and removing users, installing software and monitoring systems + Properly receive and triage customer incidents in the ticketing system + Follow standard operating procedures to accurately log all tickets within the ticketing system + Perform remote troubleshooting through diagnostic techniques + Properly escalate unresolved tickets to the next tier of support + Engage with customers throughout the process and follow up to ensure proper incident closure + Ensure quality and productivity standards are maintained while meeting customer timelines + Assist in configuring baseline switches, routers and PCs being prepared for deployment + Coordinate equipment preparation and shipping, confirm customer receipt, and validate inventories + Perform remote site surveys and identify requirements for hardware and cabling **Basic Qualifications:** + 2+ years of related experience as a System Analyst/Administrator or similar role + DoD8570 Level II Certification + Experience with network and patch management + Knowledge of system security, data backup/recovery, and network monitoring + Experience using Microsoft Office + Ability to troubleshoot and problem solve issues to resolution + Good customer interaction with a focus on positive service support + Good oral and written communication skills + Up to 10% local travel within the DC metro area **Preferred Qualifications:** + Bachelor's Degree in Information Technology, Cybersecurity, Data Science, Information Systems, or Computer Science, from an ABET accredited or CAE designated institution + DoD 8140-451 Intermediate Certification required (Cloud+ or GICSP or SSCP or Security+ or GSEC) -OR- equivalent DoD/Military Training as identified in 8140 qualifications matrix + Experience deploying workstations + Experience using ticketing systems such as Remedy or ServiceNow + ITIL 4 Foundations certification + Microsoft Certified Solutions Associate (MCSA) + Previous customer service experience + Previous experience working with networks in secure environments + Willingness to work occasional nights and weekends to support outages/etc **Security Clearance Requirements:** + TS/SCI security clearance adjudicated within the last 6 years + Willing to submit to a random polygraph **Physical Requirements:** + Must be able to remain in a stationary position 50%. + Needs to occasionally move about inside the office to access file cabinets, office machinery, etc. + Often positions self to maintain computers in the lab, including under the desks and in the server closet. + Frequently communicates with co-workers, management and customers, which may involve delivering presentations. + Must be able to exchange accurate information in these situations. . ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.