Sr. Network Engineer

Centurion Health•Sterling, VA

4d•Onsite

About The Position

Centurion is seeking a Senior Network Engineer for its Corporate team in Sterling, Virginia. The role is part of the Network team and is responsible for designing, deploying, and maintaining scalable, highly available network infrastructure across multiple co-location facilities supporting nearly 10,000 users and growing. The position provides advanced technical and engineering support for IT infrastructure and customer-facing services, uses infrastructure tools and techniques to identify and resolve operational requests and issues, and serves as an escalation point for corporate IT departments. The engineer supports LAN and WAN infrastructure, network security, Cisco and Fortinet technologies, virtual networks, and cloud infrastructure. The role also includes network automation and monitoring, documentation and asset management, incident and Tier 4 request handling, vulnerability mitigation, technical standards and process maintenance, project communication, vendor coordination, and travel for on-site installations. Flexibility to work evenings, weekends, or holidays may be needed.

Requirements

Bachelor’s degree in Information Technology or a related field preferred; equivalent work experience will also be considered.
10 or more years of experience in a corporate IT operations environment.
At least 5 years of hands-on experience installing, configuring, and troubleshooting networking technologies, including switches, routers, and firewalls.
Experience configuring IPsec tunnels, routing tables, and dynamic routing, and troubleshooting networks.
Experience setting up DMZs and/or multi-layer network zones based on data or information classification.
Experience designing and leading implementation of small- to medium-scale projects.
Experience with Fortinet technologies such as FortiGate, FortiManager, and FortiAnalyzer.
Experience with service-provider/datacenter-class Cisco ASR/ISR routers and Nexus switches.
Experience building hybrid environments spanning on-premises datacenters and Azure or AWS.
Experience working with and designing disaster-recovery datacenter solutions.
Experience with packet-capture and network-monitoring tools such as PRTG.
Experience with Cisco Meraki switches, wireless access points, and dashboard.
Deep understanding of networking technologies and protocols, including Layer 2/Layer 3 routing and switching, IPsec, BGP, MPLS, VRF, QoS, Spanning Tree, OSPF, 802.11, ACL, DHCP, TCP/IP, and DNS.
Ability to develop network topologies and wire diagrams and document detailed lab test plans and reports.
Experience with configuration and change-management policies that ensure awareness, approval, and successful network infrastructure changes during critical maintenance windows.
Must be able to lift and/or move up to 30 pounds.
May be required to stand, walk, stoop, kneel, crouch, or crawl, and to work in small spaces that may require bending or crawling to access cables.
Must be able to sit and work at a computer desk, using a mouse and viewing a screen, for potentially long periods.
May be required to visit and work within correctional facilities.
Willing and able to travel for on-site installations; may travel up to 20% of the time to support facilities and remote staff locally and across different states.
Able to follow directions, complete time-sensitive tasks, and meet deadlines with minimal supervision, and work in a fast-paced, high-pressure environment.
Flexibility to work evenings, weekends, and/or holidays as needed.

Nice To Haves

Fortinet certification, NSE 4 or higher preferred.
CCNP or higher preferred.
Knowledge of carrier services, including WAN, MPLS, and DIA, is a plus.

Responsibilities

Deploy, configure, manage, and monitor LAN and WAN infrastructure for high availability, optimal performance, and network security.
Install, set up, and upgrade network equipment firmware, and perform periodic preventive maintenance on networking equipment software and firmware.
Install, configure, optimize, troubleshoot, monitor, and manage Cisco routers, switches, and FortiGate firewalls.
Serve as the network and security subject matter expert for Fortinet technologies and solutions.
Deploy and manage virtual networks and support cloud infrastructure.
Automate network monitoring to proactively mitigate network issues.
Create and maintain network and technical documentation, including diagrams and troubleshooting methodologies.
Manage network assets, including component inventories and technical specifications.
Evaluate and prioritize network incidents and tickets related to outage escalation, and participate in triaging and resolving Tier 4 requests.
Capture and analyze network packets to troubleshoot and debug network issues.
Keep stakeholders and project managers informed of project status throughout the project lifecycle.
Coordinate with vendors, customers, and other IT personnel to resolve problems.
Identify opportunities to improve existing infrastructure and increase efficiency.
Identify and address network vulnerabilities and establish mitigation processes.
Establish, document, and maintain network technical standards, baseline configurations, support processes, and procedures.
Meet routine communication requirements and use the ticketing system to document and manage client requests and issues.
Follow change-management policies and procedures, SOPs, and other instructions.
Travel for on-site installations and support facilities and remote staff as required.
Perform other duties as assigned or required.