Principal Network Engineer

United Data Technologies•Nashville, TN

1d•Remote

About The Position

We are looking for a Principal Network Engineer who thrives on solving complex routing problems and designing resilient network architectures. This is a hands-on engineering role where you will work on challenging real-world networks, lead advanced troubleshooting efforts, and help shape the technical direction of our infrastructure. You will be part of a highly collaborative engineering team responsible for building and supporting networks that serve a growing customer base. This role offers the opportunity to work deeply with BGP driven WAN architectures, Fortinet and Cisco platforms, and multi-site routing environments while mentoring other engineers and influencing engineering standards across the organization. If you enjoy digging into routing tables, analyzing packet flows, and solving problems others cannot, this role will give you the space and autonomy to do that work. We are also big believers in teamwork and shared support, so you will be working alongside other engineers who collaborate closely, help each other solve tough problems, and take collective ownership of the network. What Makes This Role Different This position is more than just another senior engineering role. As a Principal Engineer, you will help shape how our networks are designed and operated. You will: Review and guide major network architecture decisions Lead troubleshooting during critical outages Establish engineering standards and best practices Mentor engineers and help grow the team’s technical depth Influence technical strategy and vendor platform decisions Your expertise will directly impact how our network evolves as we continue to scale, supporting the connectivity that enables K-12 schools to deliver education to students every day.

Requirements

7+ years hands-on routing experience
Deep understanding of BGP (iBGP, eBGP, route reflectors, filtering, path selection)
General understanding of OSPF
Strong grasp of routing theory (not just configuration memorization)
Ability to read and interpret routing tables and protocol states quickly CLI Mastery (Mandatory)
Advanced CLI configuration and troubleshooting on Fortinet FortiGate platforms
Ability to perform live troubleshooting in production environments via CLI
Deep knowledge of TCP/IP
Strong subnetting and summarization skills
VLANs, trunking, and STP fundamentals
NAT and policy-based routing
VPN technologies (IPSec preferred)

Nice To Haves

Fortinet NSE 4/5/7 or equivalent experience
Experience with multi-ISP failover designs
Experience serving K-12, government, or MSP environments

Responsibilities

Design and implement complex Layer 3 network architectures
Engineer and troubleshoot BGP based WAN and multi-site routing environments
Perform advanced configuration and troubleshooting using CLI on Fortinet FortiGate and Cisco platforms
Architect routing strategies involving:
Route redistribution
Route filtering and prefix lists
AS path prepending and local preference
BGP communities and traffic engineering
ECMP and multipath routing
Diagnose protocol and packet level issues using CLI tools including routing analysis, debugs, and packet captures
Design high availability network architectures that maintain service continuity
Troubleshoot traffic flow issues involving routing and firewall policy interactions
Lead technical response during high severity incidents
Produce clear documentation and network diagrams to support engineering operations
Mentor engineers and help elevate the overall technical capabilities of the team

Benefits

We offer a competitive compensation package where you’ll be rewarded based on your performance and recognized for the value you bring to the organization.
UDT’s Total Rewards package includes medical, dental, vision, life and disability coverage as of the 1st of the month, health savings accounts, flexible savings accounts, 401(k) plan with company match, 7 annual holidays and flexible time off options.

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