Network Engineer

By Light Professional IT Services LLC; Alexandria (VA); Hybrid; USD 70,000 - 100,000; Full time

Job summary

Join a forward-thinking company as a Network Engineer, where you'll play a vital role in maintaining and upgrading essential network infrastructure. This hybrid position in Alexandria, VA, calls for a proactive individual with extensive experience in enterprise networks and a knack for troubleshooting complex issues. You'll work closely with cutting-edge technologies, ensuring robust network performance while supporting a diverse range of clients. If you're ready to make a significant impact in a dynamic environment, this opportunity is perfect for you.

Qualifications

• 5+ years of experience in managing enterprise networks.
• Strong knowledge of routing protocols like EIGRP, OSPF, BGP.
• Administrator level experience on Windows and Linux.

Responsibilities

• Maintain and upgrade network infrastructure including servers and firewalls.
• Ensure network integrity and compliance with policies.
• Support design and build of network components.

Skills

Routing and Switching Technologies

Cisco ISE

Firewalls (Cisco ASA, Palo Alto)

Network Troubleshooting

Windows and Linux OS Administration

AWS and Azure Networking

Tools

Cisco ASA

Cisco Firepower

AWS

Microsoft Azure

Job description

Network Engineer

Job Locations

US-VA-Alexandria

ID

2025-10269

# of Openings

1

Category

Network

Clearance

Tier 2 - Moderate Risk (Public Trust)

Company Overview

By Light Professional IT Services LLC readies warfighters and federal agencies with technology and systems engineered to connect, protect, and prepare individuals and teams for whatever comes next. Headquartered in McLean, VA, By Light supports defense, civilian, and commercial IT customers worldwide.

Position Overview

A hardworking, competitive type that is driven to succeed with a natural sense of urgency. You are a self-starter with a reputation for being an effective team player and perhaps even a team leader, who proactively looks to improve and add efficiency to current processes. You exercise judgment in the decision-making process to provide consistent customer service. You will be responsible for the support of the IT Network Infrastructure, including all aspects of administration, configuration, and maintenance.Please note: this is a Hybrid role based in Alexandria, VA

Responsibilities

Performs maintenance and upgrade of networks including servers, routers, switches, firewalls, remote access systems, and networks.

• Maintains network integrity and connectivity while ensuring compliance with policies and maintains system backup and recovery capability.
• Creates plans and configures systems for data communication networks.
• Supports the design and build of hardware and software components for computer or telecommunications networks.

Required Experience/Qualifications

• 5+ years of experience with administering mid to large size enterprise networks to include routing and switching technologies, i.e. EIGRP, OSPF, BGP, STP, VSS, vPC, MLAG, Ethernet, and associated monitoring systems.
• 5+ years of experience with Cisco ISE, RADIUS, TACACS+, and PKI along with the wired and wireless configurations required to implement them.
• 5+ years of experience with Cisco ASA, Cisco Firepower, and/or Palo Alto Networks firewalls supporting Remote Access VPN, Site-to-Site VPN, perimeter and internal firewalling.
• Ability to analyze, test, troubleshoot, and resolve problems as well as identify deficiencies and solutions to improve a variety of environments and serve as a point of escalation for other teams.
• Working knowledge of PKI, 802.1X, DNS, DHCP, SNMP, and VPN.
• Administrator level experience on Windows and/or Linux Operating Systems.
• Amazon Web Services and/or Microsoft Azure networking experience, i.e., Transit Gateway, VPC, NACLs.
• Ability to work onsite at the customer's location in Alexandria, VA; Work-from-home available on a case-by-case basis.
• 24x7 On-call rotation for afterhours support.

Preferred Experience/Qualifications

• Active Cisco CCNA or CCNP or equivalent
• FMC (Firepower Management Center) experience
• Strong secondary experience in one or more of the following areas:
• Experience with Cisco Datacenter products (Nexus, UCS)
• Cisco Wireless Networks
• Software Defined Networking Technologies (SD-WAN, SASE)
• Palo Alto Networks experience

Physical Demands

• Ability to pickup 50 lbs, climb a ladder, run cabling