General information
Requisition #
R69099
Locations
USA-VA-Chantilly
Posting Date
07/06/2026
Security Clearance Required
TS/SCI w/ Poly
Remote Type
Onsite
Time Type
Full time
Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!
MANTECH seeks a motivated, career and customer-oriented Information Assurance System Administrator to join our team in Chantilly, VA.
The Information Assurance System Administrator is responsible for providing a full range of IT support services with client/server services, enterprise services, and network communications. Moreover, you will demonstrate a strong understanding of Server and Client functions in Windows and Linux environments, including Active Directory, DNS, GPOs, PKI, Auditing, Multi-Factor Authentication, and SIEM tools. Lastly, you will exhibit extensive experience in Information Assurance in support of ICD-503 compliance.
Responsibilities include but are not limited to:
Working with A&A authorities within the customer and IC to ensure IA measures meet mission objectives IAW applicable security policies and directives. Supplying accreditation artifacts in support of ATO submissions and POAMs
Deploying all required STIGs, software upgrades, and patches as directed
Utilizing SIEM and network monitoring tools including Splunk, EVSS, ACAS, SCCM, and HBSS
Performing maintenance, repair, and upgrade of hardware and printers, interfacing with support repair techs, and researching hardware/software to meet customer needs
Participating in Technical Exchange Meetings and supporting process improvement initiatives as directed
Assisting with administration, troubleshooting, and testing of configuration changes and software patches within the network. Identify and mitigate security and hardening issues from configurations changes and software patches.
Providing superior customer service and communication within a dynamic customer-centric environment, with occasional CONUS travel less than 25%
Minimum Qualifications:
Bachelor's degree with 4 or more years of relevant experience, or equivalent work experience
Active Security+ certification
Working knowledge of the security hardening process as it relates to ICD 503 and DCID 6/3 for server and client operating systems
Demonstrated experience with COMSEC protocols and procedures
Extremely motivated individual who is a self-starter, a team player, and able to work independently when required
Preferred Qualifications:
Previous experience supporting the NRO or the Intelligence Community
Experience using SIEM tools
Experience with the management and administration of Red Hat Linux.
Experience with the management and administration of VMWare environments
Clearance Requirements:
An active TS/SCI with Polygraph is required
Physical Requirements:
Must be able to remain in a stationary position 50% of the time
Constantly operates a computer and other office productivity machinery, such as a computer
Frequently communicates with co-workers, management, and customers, which may involve delivering presentations
Must be able to exchange accurate information in these situations
The projected compensation range for this position is $114,600.00-$190,200.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.