Seize your opportunity to make a personal impact as a Network Administrator Senior supporting enterprise network operations for our federal customer. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career., * Work closely with senior network engineers, system administrators, and security teams to troubleshoot issues, resolve incidents, and implement network changes in a collaborative team environment.

• Participate in network design discussions and deployments, supporting equipment setup, cabling, fiber work, and physical infrastructure buildouts while adhering to established standards and best practices.
• Support Cisco ISE and DNA Center (DNA-C) to manage network access control, policy-based automation, and assurance in a fast paced environment.
• Implement and manage VLANs, routing policies, access control rules, and network segmentation to support secure, scalable, and logically separated environments.
• Assist in maintaining secure network environments by enforcing firewall rules, VPN configurations, network access control policies, and security best practices in support of compliance and cyber defense objectives.
• Utilize full scope of technical and interpersonal skills to further the mission.

• 3+ years of experience

Required Technical Skills:

• Experience configuring and supporting network switches and routers
• Strong understanding of TCP/IP, DNS, DHCP, STP, SNMP, and routing fundamentals
• Hands-on experience with Cisco ISE and DNA Center (DNA-C)
• Knowledge of firewalls, ACLs, NAT, and VPN technologies
• Proficiency with VLANs, trunking, inter-VLAN routing, and segmentation
• Experience with packet capture and analysis tools (e.g., Wireshark, NetFlow)
• Familiarity with enterprise wireless technologies and basic RF troubleshooting
• Understanding of network access control systems (RADIUS, TACACS+, 802.1X)
• Working knowledge of cabling standards, fiber infrastructures, and physical network components

Required Certifications:

• CompTIA Security+
• Cisco Certified Network Associate (CCNA), * Strong troubleshooting and analytical skills with a methodical approach to problem solving
• Effective verbal and written communication skills to collaborate with technical and non-technical stakeholders
• Ability to follow standard operating procedures, change management processes, and security/compliance requirements
• Strong attention to detail and ability to maintain accurate documentation
• Ability to work both independently and as part of a team in a fast-paced, mission-focused environment

Preferred Skills:

• Experience with cloud networking concepts (Azure or AWS)
• Exposure to SD-WAN technologies
• Familiarity with VoIP and QoS principles
• Experience with network automation tools or scripting (e.g., Python, PowerShell, Ansible)

Location:

• On Customer Site

Citizenship Required:

• US Citizenship

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Work Requirements

Years of Experience

3 + years of related experience

• may vary based on technical training, certification(s), or degree Certification

CompTIA Security+ CE | CompTIA - CompTIA Travel Required

Less than 10% Citizenship

The likely salary range for this position is $106,250 - $143,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

ARMA, a GDIT company, supports some of the most complex programs within Special Operations Forces (SOF)., Own your opportunity to support our nation’s defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure., We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.