Principal Engineer, Core Network

Jobtailor; Alabama; On-site; USD 120,000 - 180,000; Full time

Job summary

Jobtailor in the United States is seeking a Senior Network Engineer to design and scale high-availability networks for service providers or enterprise environments. You will lead the move to next-generation architectures, including Segment Routing, and drive improvements to core routing protocols.

You will architect MPLS-based services, manage RSVP-TE and LDP, mentor engineers, and own automation initiatives to reduce manual configuration.

Qualifications

• 7+ years of experience in large-scale network engineering and architecture.
• Expert-level mastery of link-state routing protocols, including OSPF and ISIS.
• Deep expertise in BGP, including iBGP, eBGP, communities, and policy routing.
• Advanced knowledge of MPLS, including L2/L3 VPNs, multicast, and RSVP traffic engineering.
• Strong understanding of network security, quality of service (QoS), and high-availability network design.
• Bachelor’s or associate degree in a field related to computer networking.

Responsibilities

• Design and scale high-availability networks for service providers or enterprises.
• Lead transition to next-generation architectures, including Segment Routing.
• Optimize core routing protocols (OSPF, ISIS, BGP) for performance and stability.
• Architect and maintain MPLS-based services (RSVP-TE, LDP).
• Serve as final escalation point during large-scale outages.
• Mentor junior and senior engineers to raise team expertise.
• Drive automation initiatives to reduce manual configuration and errors.
• Perform additional duties as assigned.

Skills

Segment Routing

OSPF

ISIS

BGP

MPLS

RSVP-TE

LDP

Link State routing protocols

L2/L3 VPNs

Multicast

Education

Bachelor’s or associate degree in a field related to computer networking

Job description

Responsibilities

• Designing and scaling high-availability service provider or enterprise-grade networks
• Leading the transition to next-generation network architectures, including Segment Routing
• Optimizing core routing protocols including OSPF, ISIS, and BGP to improve overall network performance and stability
• Architecting and maintaining MPLS-based services, including RSVP-TE and LDP
• Serving as the final escalation point during critical, large-scale network outages
• Mentoring both junior and senior engineers to raise the team’s collective technical expertise
• Driving automation initiatives to reduce manual configuration efforts and minimize human error
• Performing additional duties as assigned

Requirements

• 7+ years of experience in large-scale network engineering and architecture
• Expert-level mastery of link-state routing protocols, including OSPF and ISIS
• Deep expertise in BGP, including iBGP, eBGP, communities, and policy routing
• Advanced knowledge of MPLS, including L2/L3 VPNs, multicast, and RSVP traffic engineering
• Strong understanding of network security, quality of service (QoS), and high-availability network design
• Bachelor’s or associate degree in a field related to computer networking

Hard Skills

• Segment Routing
• OSPF
• ISIS
• BGP
• MPLS
• RSVP-TE
• LDP
• Link State routing protocols
• L2/L3 VPNs
• Multicast

Soft Skills

• Mentoring
• Leadership
• Team collaboration
• Problem-solving
• Communication