Senior Lead Network Engineer - Remote, TS/SCI

Lumen Technologies; Herndon, Northern (VA, KY); Hybrid; USD 145,000 - 194,000; Full time

Job summary

Lumen Technologies is seeking a Lead IT Systems Engineer to design, install, and maintain laboratory network infrastructure specializing in Layer 2/3 protocols. The role requires a TS/SCI clearance and provides opportunities to lead complex projects within a high‑accountability environment.

The candidate will mentor junior engineers, collaborate on enterprise network designs, and produce detailed technical documentation while ensuring security and regulatory compliance across the lab environment.

Qualifications

• Experience with Layer 2/3 networking protocols and technologies across enterprise environments.
• Ability to produce technical documentation such as designs, test plans, and implementation guides.
• Familiarity with COMSEC practices and cryptographic devices.

Responsibilities

• Maintain health of laboratory network equipment (switches, routers, firewalls, tools).
• Lead projects through design, procurement, lab tests, implementation, and transition.
• Create network drawings, test plans, and implementation plans.
• Collaborate on network enterprise design including IP schemes, routing, and security.
• Provide Tier III support for enterprise network operations.
• Mentor junior engineers with technical guidance.

Skills

Layer 2/3 protocols

IS-IS, BGP/MP-BGP, MPLS routing

MPLS VPN

IPV4/IPv6, OAM, 802.1Q

Security protocols 802.1x/IPSEC

Documentation writing

MS Visio

Team collaboration

Excellent communication

Education

Bachelor’s degree in IT-related field

Six years enterprise network design experience

12 years experience in lieu of degree

Job description

Lumen Technologies is seeking a Lead IT Systems Engineer to design, install, and maintain laboratory network infrastructure specializing in Layer 2/3 protocols. The role requires a TS/SCI clearance and provides opportunities to lead complex projects within a high‑accountability environment.

The candidate will mentor junior engineers, collaborate on enterprise network designs, and produce detailed technical documentation while ensuring security and regulatory compliance across the lab environment.