Jr. Network Administrator - Tier II

Posted 2 Days Ago
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Aberdeen Proving Ground, MD, USA
In-Office
Entry level
Cloud • Information Technology • Professional Services • Consulting
The Role
Supports operation, maintenance, monitoring, configuration, troubleshooting, and hardening of DoD enterprise ICAN and LAN infrastructure. Maintains Layer 2 and Layer 3 devices, wireless, VPN, VoIP, IP/MPLS, and remote-access systems; performs IOS updates, STIG compliance, event response, packet analysis, configuration and capacity management, equipment repair, inventory tracking, and network documentation. Requires Secret clearance, Security+ CE, and CCNA or CCNP certification.
Summary Generated by Built In

Description

The Jr. Network Administrator supports the operation, maintenance, and monitoring of the Installation Campus Area Network (ICAN) and Local Area Network (LAN). This role assists senior network personnel with configuration, troubleshooting, documentation, and performance analysis for enterprise network infrastructure in a DoD environment.

Requirements

Network Operations & Maintenance

  • Operate and maintain ICAN and LAN network infrastructure equipment.
  • Perform IOS updates and complete STIG checklists as required.
  • Install, configure, troubleshoot, harden, repair, and support all enterprise Layer 2 and Layer 3 network devices (switches, routers, controllers, wireless access points, etc.).
  • Provide touch labor for LAN and ICAN systems, including troubleshooting and device repair.
  • Support installation, configuration, and hardening of switches and switch stacks for new construction or renovation projects.
  • Manage and maintain connectivity between LAN components and between LANs and ICAN resources.
Network Monitoring & Analysis
  • Utilize enterprise management tools to monitor network performance, analyze activity, and maintain high availability.
  • Conduct event management and respond to network service alerts.
  • Use DoD-approved tools (e.g., NetCool, WireShark) for packet capture, network tapping, fault analysis, and discovery.
  • Perform configuration management and capacity management of all network devices.
Configuration & Support
  • Install, configure, support, and troubleshoot devices in converged IP and IP/MPLS environments.
  • Support remote access solutions, wireless networking, VPN services, VoIP systems, circuit provisioning, and authentication mechanisms.
  • Configure and support various Cisco technologies (ASA 5500 series, multilayer switches/routers, Cisco Unified IP Phones, Cisco Prime, Cisco IOS, Cisco NS-OX).
Documentation & Procedures
  • Prepare, update, and maintain network Standard Operating Procedures (SOPs) and Tactics, Techniques, and Procedures (TTPs).
  • Maintain accurate inventory management for all assigned network equipment.
Required Knowledge, Skills, and Abilities
  • Secret Clearance
  • Security+ CE
  • Cisco Certified Network Associate (CCNA) or Cisco Certified Network Professional (CCNP) certifications is required (or ability to obtain in 6 months)
  • Ability to communicate complex networking concepts to technical and non-technical personnel.
  • Excellent customer service skills with a professional and positive demeanor.
  • Ability to work effectively within established deadlines and schedules.
  • Experience configuring and troubleshooting equipment such as:
    ASA 5500 Series Firewalls, Cisco 3000/4000/5000/6000 Series switches/routers, Cisco Unified IP Phones.
  • Knowledge of: 
    • Cisco Prime, Aruba OS, Cisco IOS, Cisco NS-OX
    • Wireless protocols (802.x) and authentication protocols (EAP, PEAP, EAP-TLS, EAP-TTLS, etc.)
    • Enterprise network protocols including:
      TCP, UDP, IP, SSH, VRRP, STP, CDP, HSRP, DNS, DHCP, VTP, VPN, FTP, TFTP, IAS, VoIP, NAT, Dot1.x
  • Familiarity with Cisco operating systems and network management tools.

Skills Required

  • Secret security clearance
  • Security+ CE certification
  • CCNA or CCNP certification, or ability to obtain within six months
  • Experience configuring and troubleshooting ASA 5500 firewalls, Cisco switches and routers, and Cisco Unified IP Phones
  • Knowledge of Cisco Prime, Aruba OS, Cisco IOS, and Cisco NS-OX
  • Knowledge of enterprise networking, wireless, authentication, VPN, VoIP, and network protocols
  • Ability to communicate complex networking concepts to technical and non-technical personnel
  • Excellent customer service and professional communication skills
  • Ability to work within established deadlines and schedules
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The Company
HQ: Silver Spring, MD
125 Employees
Year Founded: 1984

What We Do

A & T Systems, Inc., doing business as A Plus T Systems Inc., is a minority-owned small business headquartered in Silver Spring, Maryland. The company specializes in providing comprehensive information technology solutions to federal government agencies, including cloud computing, infrastructure operations and maintenance, telecommunications support, and network enterprise center services. They are a versatile federal contractor delivering scalable and secure technology services to meet complex government requirements.

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