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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # IT Systems Administrator (Multiple Levels) - **Company:** Noblis Inc. - **Location:** Chantilly, VA, United States - **Experience:** Expert - **Salary:** $99,800.0 - $156,050.0 - **Contract:** Permanent contract - **Skills:** Multitier Architecture, Active Directory, Artificial Intelligence, Amazon Web Services, Cloud Computing, CompTIA Security+, Cyber Security, Computer Networks, Linux, Multi-Factor Authentication, Firmware, HTTP Secure, Identity and Access Management, Internet Security, Subnetting, Python (Programming Language), Microsoft Office, Network Protocols, Windows PowerShell, Remote Access Technology, Cloud Services, RSA (Cryptosystem), Security Software, Virtual Local Area Networks, Data Logging, Load Balancing, System Availability, Amazon Virtual Private Cloud (VPC), Kubernetes, Information Technology, Nessus, Route53, Splunk, Docker - **Published:** November 7, 2026 - **Apply:** https://dejobs.org/x/x/F6609802FB1941C2AF67554081085988/job/ ## About the Role * Active Top Secret/SCI clearance with Counterintelligence (CI) Polygraph. * US Citizenship is required. * Degree in Cybersecurity, Information Technology, Computer Science, OR equivalent technical experience. * DoD 8570/8140 IAM/IAT Level II OR III certification (e.g., Security+, CISSP, CISM, or CASP+) is required. * Experience administering ACAS, Nessus, or Splunk vulnerability and logging scanners. * Deep operational knowledge of the Risk Management Framework (RMF) lifecycle and ICD-503 security accreditation procedures. * Design, provision and maintain secure, resilient, and scalable C2S infrastructure using AWS Well-Architected Framework. * Proven experience hardening systems utilizing DISA Security Technical Implementation Guides (STIGs) and Center for Internet Security (CIS) benchmarks. * Advanced management of Active Directory (AD), specifically focused on secure Group Policy Objects (GPOs). * Ability to identify, analyze, and resolve unexpected challenges efficiently and effectively. * Travel up to 10% within US. * Lift up to 30 lbs, walk, bend, drive. Intermediate Level * Bachelor's degree and 6 years of experience OR Master's degree and 4 years of experience OR Associate's degree and 8 years of experience OR HS diploma/GED and 10 years of experience. * Compensation: $99,800 - $156,050 Senior Level * Bachelor's degree and 12 years of experience OR Master's degree and 10 years of experience OR Associate's degree and 14 years of experience OR HS diploma/GED and 16 years of experience. * Compensation: $120,700 - $228,400 Desired Qualifications * AWS certification is preferred. * Expanded knowledge of Networking functions, appliances, protocols and configurations (e.g. VLAN & firewall switch/router configurations, firmware updates). * Working knowledge of networking protocols and configurations. Configure and manage complex C2S networking components, including VPC's, subnets, Route 53, transit gateways, and load balancers. * PowerShell or Python experience to automate configuration baseline checks and patch verification. * Working knowledge of cybersecurity tools (e.g. SNOW, Trellix) concepts and best practices. * Working knowledge of Linux and Linux networking internals. * Experience with AI tools and concepts, with the ability to apply as a problem-solving technique. * Experience with Kubernetes or Docker for container orchestration and VM management. * Experience translating complex technical issues for non-technical stakeholders and managing vendor relationships. * Ability to design scalable, high-availability, and cost-effective IT systems. ## Description Noblis ESI is seeking experienced IT Systems Administrators specializing in cloud services, responsible for applying technical/functional solutions to several projects, leveraging capabilities and sharing/seeking knowledge and information across the organization. As part of a cross-functional team, the position will optimize and secure classified IT infrastructure(s) supporting customers operating within a Sensitive Compartmented Information Facility (SCIF), ensuring maximum availability, security, and performance for critical communication, deployment, and authentication platforms. The engineer delivers Tier II/III advanced engineering support and handles limited Tier I troubleshooting, escalations as needed, while supporting the maintenance of an active Authorization to Operate (ATO) by aligning all systems with Risk Management Framework (RMF) and ICD-503 compliance standards. Responsibilities Include: * Support the development and management of classified Commercial Cloud Services (C2S) infrastructures across several domains, seeking to implement efficiencies and maintain a high availability requirement. * Provide 100% on-site management of secure server & desktop infrastructure within the classified space. * Diagnose and resolve complex infrastructure, server, and network failures; handle specialized system outages and configuration changes (mostly in a cloud environment. * Handle limited, escalated desktop or user issues. * Implement, monitor, and enforce technical security controls mandated by NIST SP 800-53, RMF, and Intelligence Community Directive (ICD) 503. * Administer and synchronize secure on-premises servers with classified cloud environments. * Utilize Microsoft tools to enforce secure baselines, deploy hardened operating system images, and push mandatory security patches to multiple endpoints. * Administer RSA authentication tools to enforce strict Multi-Factor Authentication (MFA) and secure, identity-vetted remote access. * Configure and monitor continuous auditing systems (such as Splunk) to log and review user and system events for compliance verification. * Ensure user needs are met and enhance customer experience. Assist with strategic plans for future technical management and configuration. Design and Implement system changes to maintain security and usability posture. * Conduct routine system scans using mandated automated tools (e.g., Nessus, ACAS), analyze findings, and execute remediation actions.