Network Engineer (L3, Fiber)

About the role

FaultLine is hiring a Network Engineer (L3, Fiber) on our Engineering team. You will work with experienced operators on systems that real customers depend on every day.

What you will do

• Design, build, and operate production network services and the tools around them.
• Participate in architecture reviews and on-call rotations.
• Write and own runbooks for the systems you ship.
• Mentor more junior engineers; raise the floor.
• Collaborate with NOC, support, and product on incident response and root-cause analysis.

What we are looking for

• 5+ years building production network or distributed systems.
• Strong fundamentals: TCP/IP, BGP, routing, queuing, observability.
• Solid programming skills in at least one of: Go, Python, Rust.
• Track record of operating systems you built.
• Clear written communication.

Nice to have

• Familiarity with the Southwest market.
• Bilingual (English/Spanish) a plus.
• Prior ISP, telco, or hyperscaler experience.
• Open source contributions in adjacent areas.

Benefits

• Medical, dental, vision (employee 100% covered)
• 401(k) match, vested day one
• 16 weeks parental leave
• Unlimited PTO with a 15-day minimum
• $2,500/year learning budget
• Free FaultLine Fiber Gig at home

FaultLine is an equal opportunity employer. See /careers for our EEO statement.