Network Operations and Security Center (NOSC) Technician (Senior)

JCS Solutions LLC•Fort Belvoir, VA

2d•$70,000 - $100,000•Onsite

About The Position

JCS Solutions is seeking an experienced Sr. Network & Systems Engineer to support large-scale operations on a high-profile Department of War (DoW) contract at Fort Belvoir, VA. This role supports the I3TS program, which delivers enterprise-wide IT services to DTRA's Information Management & Technology Directorate (ITD). The successful candidate will serve as a senior technical authority responsible for engineering, systems analysis, operational oversight, and strategic modernization initiatives across Unclassified, Secret, and Top Secret environments. This position plays a critical role in ensuring secure, resilient, and mission-focused IT operations for stakeholders throughout CONUS and OCONUS locations.

Requirements

Must be a US Citizen.
Active Top Secret/SCI security clearance at the time of consideration.
Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field and 8-12 years of relevant experience; OR Master's degree in a related field and 6-10 years of relevant experience.
Equivalent high-level technical experience may be considered in lieu of a degree.
Advanced understanding of enterprise networking technologies, including TCP/IP, DNS, DHCP, VPNs, routing, switching, and firewalls.
Experience supporting enterprise server, storage, and virtualization infrastructures.
Experience administering Active Directory in large-scale enterprise environments.
Experience utilizing enterprise monitoring platforms such as SolarWinds.
Working knowledge of ITIL and IT Service Management (ITSM) best practices.
Current DoD 8570.01-M IAT Level II certification (such as Security+ CE) or higher prior to start.
Ability to support one of the following schedules: Day Shift: 0600-1800 (Sunday-Wednesday), or Night Shift: 1800-0600 (Wednesday-Saturday)

Nice To Haves

Extensive experience in enterprise systems engineering, network architecture, or IT operations management within DoD environments.
Demonstrated expertise supporting classified network infrastructures across multiple security domains.
Experience developing operational procedures, escalation frameworks, and incident response processes.
Strong executive communication and briefing skills with experience presenting technical information to senior leaders and mission stakeholders.
Experience supporting global enterprise networks and geographically dispersed user communities.
Background working directly with DISA, Combatant Commands, Joint Forces, or other defense organizations.

Responsibilities

Apply advanced systems analysis techniques to advise DTRA leadership and mission partners on enterprise technology solutions, system requirements, capacity planning, and architectural roadmaps.
Analyze, document, test, and modify network and server configurations, security controls, and Active Directory environments to align with DoD directives and security baselines.
Serve as the 24x7x365 Network Operations and Security Center (NOSC) Operations Watch Officer during assigned shifts.
Lead troubleshooting and resolution efforts for complex enterprise system and network outages across multiple environments.
Develop diagnostic strategies, perform event correlation, and conduct root-cause analysis for high-impact incidents.
Support continuous improvement initiatives related to operational procedures, incident response frameworks, and SLA-driven workflows.
Evaluate and integrate third-party technologies and vendor solutions within enterprise environments.
Manage and support configurations within the ServiceNow ITSM framework.
Interface directly with mission partners, DISA, Joint Forces, and Combatant Commands regarding operational status, network performance, vulnerabilities, and technical solutions.
Prepare and deliver operational briefings, executive summaries, technical reports, and After-Action Reports (AARs) to senior leadership.
Provide technical leadership and guidance to Tier I, II, and III support personnel.
Monitor and maintain enterprise network health using DoD-approved monitoring tools, including SolarWinds.
Troubleshoot, resolve, and escalate technical incidents through remote or onsite support as required.
Ensure continuous and secure access to enterprise systems supporting mission-critical operations.