Sr. Network Engineer

Akkodis; Leesburg (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

Akkodis is seeking a Senior Network Engineer/Infrastructure Engineer to architect, deploy, and optimize complex on‑premises infrastructure supporting mission‑critical operations. This highly visible leadership role focuses on automation, reliability, and scalable solutions across Linux‑based platforms and multi‑vendor networks.

The position requires deep SDN knowledge, extensive routing experience (BGP/MPLS), and hands‑on Linux administration.

Qualifications

• Extensive experience designing, implementing, and supporting enterprise network infrastructure in on‑premises and datacenter environments.
• Advanced expertise with Cisco, Arista, VyOS, and other enterprise networking platforms.
• Deep knowledge of routing technologies, including BGP, with MPLS experience preferred.
• Strong understanding of SDN concepts and Linux‑based routing architectures.
• Advanced Linux systems administration experience.
• Proven experience with infrastructure automation and configuration management, with Ansible strongly preferred.
• Hands‑on experience implementing firewalls, ACLs, and network security controls.
• Demonstrated success designing and deploying complex, large‑scale infrastructure solutions.
• Ability to independently manage multiple projects and drive initiatives to completion.

Responsibilities

• Design, deploy, and optimize enterprise on‑premises data center and remote‑site networks.
• Lead multi‑vendor network deployments and lifecycle management.
• Administer Linux‑based systems underpinning network and infrastructure services.
• Implement network security controls, firewalls, ACLs, and secure routing.
• Drive automation and infrastructure modernization using Ansible/AWX.
• Develop documentation, architecture diagrams, and inventory records.

Skills

Enterprise net design

Multi-vendor networking

Linux administration

Automation & scripting

Ansible

AWX

OpenSearch/Elastic

NetBox documentation

SDN concepts

BGP/MPLS

Network security

Project leadership

Tools

Ansible

AWX

NetBox

OpenSearch

Elastic Stack

Proxmox

Cisco

Arista

VyOS

Job description

Our client is seeking a Senior Network Engineer/ Infrastructure Engineer to architect, deploy, and optimize complex on-premises infrastructure environments that support mission‑critical operations. This is a highly visible technical leadership role for an engineer who thrives on solving complex challenges, driving automation, and delivering reliable, scalable network and infrastructure solutions.

*Interview process: One technical screen; two in-person rounds (the second of which is HR only)

*MUST be eligible to obtain a Top Secret SCI Clearance

As a key member of our engineering team, you will lead the design and lifecycle management of multi‑vendor networks, Linux‑based infrastructure, and automation initiatives while serving as a trusted technical expert across the organization. You will have the opportunity to influence architecture decisions, own projects from concept through implementation, and modernize infrastructure through automation and innovation.

Role:

Network Architecture & Engineering

• Design, implement, and optimize enterprise datacenter and remote‑site network architectures with a focus on modern, software‑defined networking (SDN) principles.
• Deploy, configure, and manage multi‑vendor network environments, including Cisco, Arista, VyOS, and related platforms.
• Build and maintain advanced routing environments leveraging BGP, MPLS, VPNs, and Linux‑based routing solutions.
• Design and support WAN and SD‑WAN architectures that deliver secure, high‑performance connectivity across distributed environments.
• Lead infrastructure deployments in remote datacenters, ensuring successful implementation, testing, validation, and documentation.
• Administer and support Linux‑based systems that underpin network and infrastructure services.
• Design, implement, and maintain network security controls, including firewalls, ACLs, and secure routing frameworks.
• Manage infrastructure lifecycle activities, including upgrades, patching, performance optimization, and capacity planning.
• Monitor infrastructure health and drive continuous improvements in reliability, resiliency, and operational efficiency.

Automation & Operational Excellence

• Champion infrastructure automation initiatives using Ansible, AWX, and configuration management tools.
• Develop repeatable, scalable deployment and management processes that reduce operational overhead and improve consistency.
• Integrate monitoring, logging, and observability platforms such as OpenSearch and Elastic to enhance visibility across the environment.
• Maintain comprehensive network documentation, architecture diagrams, and inventory records using NetBox or similar platforms.

Required Qualifications

• Extensive experience designing, implementing, and supporting enterprise network infrastructure in on‑premises and datacenter environments.
• Advanced expertise with Cisco, Arista, VyOS, and other enterprise networking platforms.
• Deep knowledge of routing technologies, including BGP, with experience supporting MPLS environments preferred.
• Strong understanding of software‑defined networking (SDN) concepts and Linux‑based routing architectures.
• Advanced Linux systems administration experience.
• Proven experience with infrastructure automation and configuration management technologies, with Ansible strongly preferred.
• Hands‑on experience implementing firewalls, ACLs, and network security controls.
• Demonstrated success designing and deploying complex, large‑scale infrastructure solutions.
• Ability to independently manage multiple projects and drive initiatives to completion.Strong analytical, troubleshooting, and problem‑solving skills.

Preferred Qualifications

• Experience with virtualization platforms such as Proxmox.
• Expertise with OpenSearch, Elastic Stack, or similar observability and analytics platforms.
• Familiarity with PacketFence, Fluentd, Oxidized, and related infrastructure management tools.
• Experience with AWX (Ansible Tower) and enterprise automation frameworks.
• Background supporting highly customized, locally hosted infrastructure environments.
• Experience integrating networking, systems, security, and application technologies to deliver end‑to‑end solutions.