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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Information Assurance System Administrator - **Company:** Mantech International Corporation - **Location:** Chantilly, VA, United States - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Active Directory, Client Server Models, Computer Networks, Domain Name System (DNS), Multi-Factor Authentication, Linux System Administration, System Center Configuration Manager, Network Monitoring, Office Suite, Public Key Infrastructure, Red Hat Enterprise Linux, Service Pack, Security Information and Event Management, Splunk, Vmware - **Published:** July 7, 2026 - **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-716965AD18E36B5651/ ## About the Role * 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, * 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 ## Description 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., * 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% ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [One Platform Could Not Fit Them All](https://www.wearedevelopers.com/videos/1919-one-platform-could-not-fit-them-all) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [How Sparking Developer Joy Unlocks Developer Productivity](https://www.wearedevelopers.com/videos/613-how-sparking-developer-joy-unlocks-developer-productivity) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Dev Digest 191: Malware interviews, EU ❤️ Open Source and Skilled Agents](https://www.wearedevelopers.com/magazine/645-dev-digest-191-malware-interviews-eu-open-source-and-skilled-agents) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Dev Digest 164: AI Agents, AI Blindspots and MCP security problems](https://www.wearedevelopers.com/magazine/578-dev-digest-164-ai-agents-ai-blindspots-and-mcp-security-problems) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)