Network Engineer

Stellent IT LLC; Alexandria (VA); On-site; USD 140,000 - 180,000; Full time

Job summary

Stellent IT LLC is seeking a Network Engineer in Alexandria, VA to design, secure, and maintain resilient network architectures for government customers. The role requires an active TS/SCI clearance with SEC+ and CCNA or SEC+ and CCNP.

You will lead high‑level designs, deploy enterprise solutions, and act as a technical advisor in a fast‑paced environment. Strong routing/switching, firewall, VPN, and Cisco platform experience are essential.

Qualifications

• Bachelor's degree or equivalent experience in CS/IT/Engineering.
• 10+ years of related network engineering experience.
• Expertise in BGP, OSPF, EIGRP.
• LAN/WAN design, deployment, and monitoring.

Responsibilities

• Lead high‑level and low‑level network designs for enterprise and data center solutions.
• Act as a technical advisor translating requirements into architectures.
• Troubleshoot complex network issues; perform root cause analysis and improvements.
• Utilize routing/switching and automation to optimize networks.

Skills

BGP

OSPF

EIGRP

LAN/WAN design

Cisco platforms

routing and switching

network design

leadership

Education

Bachelor's degree or equivalent experience in CS/IT/Engineering

Tools

SolarWinds

NetFlow

Wireshark

Firewalls

VPNs

QoS

Load balancers

Cisco Catalyst

Cisco Nexus

Cisco ACI

Job description

Network Engineer

Alexandria, Virginia

Clearance: TS/SCI

Location(s): 100% on site in Alexandria, VA | Core work hours 9 AM 3 PM

Have to have an active TS/SCI Clearance with SEC+ and CCNA or SEC+ and CCNP.

Job Description

An opportunity is available for a Network Engineer to support mission‑critical national security, defense operations, and infrastructure protection activities. In this role, you will contribute to challenging projects and design, secure, and maintain resilient network architectures. This work enables uninterrupted communication, real‑time data sharing, and system availability for government customers in dynamic environments.

Key Responsibilities

• Lead the development of high‑level and low‑level network designs and collaborate with teams to deploy and integrate enterprise and data center solutions.
• Operate in a fast‑paced environment, acting as a technical advisor and translating complex requirements into actionable strategies and architectures.
• Troubleshoot and resolve complex network issues, perform root cause analysis, and implement performance, reliability, and security improvements.
• Utilize advanced routing and switching technologies and automation tools to optimize and modernize enterprise and data center network environments.

Required Qualifications

• Education: Bachelor of Arts/Bachelor of Science in Computer Science, Information Technology, Engineering, or a related field, or equivalent experience.
• Experience: 10+ years of related network engineering experience.

Technical Skills

• Expertise in routing and switching protocols such as BGP, OSPF, and EIGRP.
• Experience with LAN/WAN architecture, design, and deployment.
• Proficiency with network monitoring and performance tools such as SolarWinds, NetFlow, and Wireshark.
• Hands‑on experience with firewalls, VPNs, QoS, and load balancers.
• Strong background with Cisco platforms including Catalyst, Nexus, and ACI.

Abilities

• Communication and presentation skills, including the ability to explain complex technical concepts.
• Ability to engage with senior leadership and influence technical and strategic decisions.
• Advanced problem‑solving and analytical skills in large, complex network environments.
• Ability to collaborate across multiple technical disciplines and operate effectively under pressure while managing competing priorities.

Preferred Qualifications

• Experience with SDN and Cisco solutions such as Catalyst Center, ISE, and Intersight.
• Cloud networking experience with platforms like AWS, Azure, or GCP.
• Network automation using Python, REST APIs, Ansible, and Terraform.
• Knowledge of Zero Trust principles and network security best practices.
• Familiarity with data center technologies including VXLAN, EVPN, and ACI.