Network Administrator 4

Ampcus, Inc; Chantilly (VA); On-site; USD 85,000 - 120,000; Full time

Job summary

Ampcus Inc. is seeking a mid-level Network Administrator to support and maintain enterprise network infrastructure in the Sully Station, VA area. The role requires a bachelor’s degree or equivalent certifications, plus hands-on experience with LAN/WAN, routers, switches, and firewalls.

Responsibilities include configuring and monitoring network performance, troubleshooting Tier 1/2 issues, documenting changes, and supporting cybersecurity initiatives while working independently or with a team.

Qualifications

• 5+ years of hands-on network administration experience.
• Bachelor's degree or equivalent experience and industry certifications considered.
• Experience administering enterprise LAN, WAN, and network infrastructure.
• Strong knowledge of DHCP, DNS, Routers, Switches, Firewalls, Network security, TCP/IP networking.

Responsibilities

• Install, configure, maintain, and support LAN, WAN, and Internet network infrastructure.
• Monitor network performance, availability, and utilization to ensure reliable operations.
• Troubleshoot and resolve Tier 1 and Tier 2 network and software support requests.
• Configure, deploy, and maintain routers, switches, firewalls, DHCP, DNS, and related networking technologies.
• Design and implement network extensions and connectivity solutions.
• Maintain network architecture, project documentation, inventory, and maintenance records.
• Document network changes and maintain detailed change management history.
• Perform network tuning, optimization, and capacity planning.
• Assess existing network infrastructure and recommend improvements based on best practices and cybersecurity standards.

Skills

General IT

Cisco Routing & Switching

VLAN Management

Network Design

Subnetting

Routing Protocols

Network Security

DNS/DHCP

Network Monitoring

Network Cable Management

Cisco FMC/Firepower

Solutions Design Build

Integration Troubleshooting

Cybersecurity

Software Integrations

Education

Bachelor's degree in Information Technology, Computer Science, or related field

Job description

Ampcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented Team.

Job Title: Network Administrator 4

Location(s): Sully Station, VA

Job Summary:

Seeking a mid-level Network Administrator with at least 5 years of hands‑on networking experience to support and maintain enterprise network infrastructure. The ideal candidate is a self‑motivated professional seeking long‑term career growth, with a bachelor's degree and/or relevant industry certifications. This role requires strong technical expertise, leadership potential, problem‑solving abilities, and the ability to work independently as well as collaboratively in a team environment.

Key Responsibilities:

• Install, configure, maintain, and support LAN, WAN, and Internet network infrastructure.
• Monitor network performance, availability, and utilization to ensure reliable operations.
• Troubleshoot and resolve Tier 1 and Tier 2 network and software support requests.
• Respond to break/fix incidents involving network infrastructure and connectivity.
• Configure, deploy, and maintain routers, switches, firewalls, DHCP, DNS, and related networking technologies.
• Design and implement network extensions and connectivity solutions.
• Support deployment of new and replacement network hardware and communications infrastructure.
• Maintain network hardware, software, and support applications.
• Monitor network traffic, identify anomalies, and resolve connectivity issues.
• Maintain accurate network architecture, project documentation, inventory, and maintenance records.
• Document network changes and maintain detailed change management history.
• Perform network tuning, optimization, and capacity planning.
• Assess existing network infrastructure and recommend improvements based on industry best practices and cybersecurity standards.
• Configure solutions to meet business requirements and provide technical documentation.
• Train users and technical staff on implemented solutions.
• Support field maintenance teams with communication infrastructure implementation and troubleshooting.
• Participate in infrastructure design and technical support for enterprise solutions.
• Support cybersecurity initiatives, including network hardening, threat hunting, and mitigation activities.
• Effectively manage multiple priorities while meeting project and operational deadlines.

Required Qualifications:

• Minimum 5 years of hands‑on network administration experience.
• Bachelor's degree in Information Technology, Computer Science, or related field; equivalent experience and industry certifications will also be considered.
• Experience administering enterprise LAN, WAN, and network infrastructure.
• Strong knowledge of:
  • DHCP
  • DNS
  • Routers
  • Switches
  • Firewalls
  • Network security
  • TCP/IP networking
• Experience troubleshooting network connectivity and infrastructure issues.
• Experience monitoring network performance and availability.
• Strong documentation and change management skills.
• Ability to work independently with minimal supervision.
• Strong analytical and problem‑solving skills.
• Excellent verbal and written communication skills.
• Ability to collaborate with technical teams and non‑technical users.

Preferred Qualifications:

• Industry certifications such as CCNA, CCNP, Network+, or equivalent.
• Leadership experience or demonstrated leadership potential.
• Experience with cybersecurity best practices.
• Experience supporting transportation, government, or enterprise infrastructure environments.
• Experience with network monitoring and management tools.
• Experience with infrastructure design and implementation.

Desired Skills:

• Leadership and mentoring abilities.
• Strong customer service orientation.
• Time management and multitasking skills.
• Creative problem‑solving.
• Team collaboration.
• Technical documentation.
• Infrastructure planning.
• Network performance optimization.
• Cybersecurity awareness and threat mitigation.

Work Environment:

• Onsite position.
• Works both independently and as part of a collaborative infrastructure team.
• Supports enterprise network operations and infrastructure projects.

Skills:

• General Information Technology - Required - 10 Years
• Cisco Routing and Switching - Required - 5 Years
• VLAN Management - Required - 5 Years
• Network Design - Required - 2 Years
• Subnetting - Required - 5 Years
• Routing Protocols (BGP, OSPF, etc) - Required - 3 Years
• Network Security - Highly desired - 2 Years
• DNS/DHCP - Nice to have - 2 Years
• Network Monitoring - Nice to have - 2 Years
• Network Cable Management - Nice to have - 2 Years
• Cisco FMC/Firepower - Nice to have - 2 Years
• Solutions Design Build - Nice to have - 3 Years
• Integration Troubleshooting - Required - 2 YearsCybersecurity - Highly desired - 2 Years
• Software Integrations - Nice to have - 2 Years

Ampcus is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veterans or individuals with disabilities.