Overview We’ve got good news! If you’re looking to be a part of a team that strives for excellence, you’re in the right place! i3 is seeking a Mid-Level Network Administrator. The successful candidate should have a thorough knowledge of network architecture, configuration, implementation, and support. The candidate must be capable of working in both a team environment on enterprise projects and be capable of working independently to resolve technical issues. Knowledge of Tactical networks and communication systems is beneficial. Responsibilities + Install, configure, and maintain LAN and WAN system hardware (switches, routers, firewalls, etc.) using primarily Cisco hardware. + Design, maintain and document network solutions. + Strong knowledge of network protocols. + Secure networks by developing network access controls and policies that align with DISA STIGs. + Ensure system security in compliance with Army and customer policies. + Understand network security devices and their output. + Ensure reliable backup and recovery from circuit and hardware outages. + Provides network performance statistics, reports, and recommendations for network enhancements. + Apply firmware and software patches as required to hardware. + Perform other hardware and software tasks as assigned. Qualifications + BS degree in related discipline preferred. + Minimum of three (3) years related experience.  + CCNA certification + Must have Security+, comparable certificate, or ability to achieve 8570/8140 compliance within 60 days of hiring. + Cisco IOS installation, maintenance, and STIG management as required for switching, routing and firewall environments at advance configuration and troubleshooting skill levels. + Able to work in a fast paced, deadline driven environment. + Cisco Catalyst Center experience desirable. + Ability to obtain and maintain a full Secret clearance. Active Secret clearance preferred. About i3 i3 is a technically diverse, 100% team member owned business, headquartered in Huntsville, Alabama specializing in missile and aviation systems engineering and logistic services, electronic warfare and electromagnetic effects analysis, UAS system integration and flight operations, full lifecycle C5ISR engineering services, cybersecurity and IT/IA innovative solutions and virtual training, simulation & serious game development and implementation. We have established a broad offering of products and capabilities collectively providing decades of experience supporting the full complement of DoD military services, Missile Defense Agency, National Aeronautics and Space Administration, and a variety of other Government organizations and private industry customers. Perks of being a team member owner include: + Long-term financial security + Higher job satisfaction + Greater job security + Personal and professional growth + Great company culture Other outstanding benefits: + Excellent insurance coverage + 401(k) match + Generous PTO + Health and wellness incentives + Tuition and certification reimbursement + Countless opportunities to give back to the community through i3 Cares We work hard. We compete hard. We play hard. Apply now to join us! Job LocationsUS-AL-Huntsville ID 2025-4701 Business Unit ITCE Type Full-Time Clearance Secret Preferred