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Fiber Planning Engineer Jobs (NOW HIRING)

Anthropic

Staff Fiber Network Engineer

San Francisco, CA · On-site

$320K - $405K/yr

Experience in OSP/fiber planning or network delivery at a carrier, hyperscaler, dark-fiber provider ... line-system engineers can use * Ability to serve as the single accountable owner for physical ...

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Fiber Planning Engineer information

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$52K

$100.3K

$137K

How much do fiber planning engineer jobs pay per year?

As of Jun 7, 2026, the average yearly pay for fiber planning engineer in the United States is $100,259.00, according to ZipRecruiter salary data. Most workers in this role earn between $81,000.00 and $128,000.00 per year, depending on experience, location, and employer.

What is the difference between Fiber Planning Engineer vs Fiber Design Engineer?

AspectFiber Planning EngineerFiber Design Engineer
Required CredentialsBachelor's in Engineering, certifications in telecommunications or fiber opticsBachelor's in Engineering, certifications in fiber optics or network design
Work EnvironmentField planning, network mapping, site surveysDesigning network layouts, technical drawings, and specifications
Employer & Industry UsageTelecom companies, network service providersTelecom firms, network infrastructure companies

Fiber Planning Engineers focus on planning and mapping fiber optic networks, including site surveys and route selection. Fiber Design Engineers concentrate on creating detailed network designs, technical drawings, and specifications. Both roles require similar technical skills and certifications but differ mainly in their focus—planning versus detailed design within the fiber optic industry.

What states have the most Fiber Planning Engineer jobs? States with the most job openings for Fiber Planning Engineer jobs include:
Infographic showing various Fiber Planning Engineer job openings in the United States as of May 2026, with employment types broken down into 55% Full Time, 5% Part Time, 5% Temporary, and 35% Contract. Highlights an 86% Physical, 5% Hybrid, and 9% Remote job distribution, with an average salary of $100,259 per year, or $48.2 per hour.
Staff Fiber Network Engineer

Staff Fiber Network Engineer

Anthropic

San Francisco, CA

Other

Posted 24 days ago

Job description

About the role

Anthropic is building Anternet - a private, global dark-fiber backbone connecting our data centers, cloud regions, and partners. We light our own glass: long-haul and metro DWDM over leased dark fiber and IRU pairs terminating on our own optical line systems and routers.

We're looking for a Staff Fiber Network Engineer to own the physical layer of this network end-to-end. You'll be the person who decides where the fiber goes and then makes sure it actually shows up, splices clean, and tests to spec. This is equal parts route engineering, vendor management, and field-delivery program management - the connective tissue between "we need NTbps between these two metros" and "the span is lit and carrying traffic."

This is a foundational role building Anternet's fiber program from the ground up. You'll define the inventory system, set acceptance standards, and establish the vendor bench yourself.

You'll work closely with our optical/transport engineers (who design the line systems on top of your fiber), our backbone routing team, and our data center and capacity planning teams.

Key responsibilities

  • Route engineering and design - Plan terrestrial fiber routes between Anternet PoPs and data centers. Evaluate diversity (SRLG, conduit, ROW, landing-station separation), latency, and OSNR/loss budgets. Produce route KMZs, splice diagrams, and as-built documentation

  • Fiber acquisition - Source and qualify dark fiber, IRU, and wavelength options from carriers and infrastructure providers. Run RFPs, compare bids on cost, route quality, diversity, and MTTR, and drive contracts to signature alongside legal and procurement

  • Vendor and delivery management - Own the build from PO to acceptance: track splicing, lateral construction, building entries, meet-me-room cross-connects, and CLS access. Hold vendors to schedule and SLA; serve as the escalation point when a span is late or fails OTDR

  • Acceptance and characterization - Define and enforce fiber acceptance criteria (OTDR bi-directional, IL/ORL, CD/PMD where relevant). Review test results, reject substandard spans, and sign off on handover to the optical team

  • Capacity and lifecycle management - Maintain the source-of-truth fiber inventory (strands, conduits, splice points, leases, IRU terms and renewals). Forecast fiber needs against our PoP and capacity roadmap. Monitor degradation and quality over time

  • Operations - Partner with NOC and field-ops on fiber cuts, locates, and repairs. Drive root-cause analysis with vendors and feed lessons back into route-diversity decisions

Minimum qualifications

  • Experience in OSP/fiber planning or network delivery at a carrier, hyperscaler, dark-fiber provider, or large enterprise backbone

  • Demonstrated experience taking long-haul or metro dark-fiber routes from design through acceptance - can read an OTDR trace and engage substantively with vendors on splice quality

  • Solid working knowledge of the vendor landscape: who has conduit where, how IRU vs. lease vs. wavelength pricing behaves, and what's negotiable in an MSA

  • Proficiency with GIS/KMZ tooling for route design and comfort maintaining structured inventory data

  • Sufficient understanding of optical transport (DWDM, amplifier spacing, span loss, CD/PMD) to design fiber that line-system engineers can use

  • Ability to serve as the single accountable owner for physical delivery across many concurrent builds

Preferred qualifications

  • 8+ years of OSP/fiber planning or network delivery experience

  • Experience standing up a fiber program from near-zero - building the inventory system, acceptance standards, and vendor bench from scratch

  • Familiarity with permitting, ROW, and make-ready processes in US metro markets

  • Scripting or light tooling experience (Python, Go, SQL, or similar) for inventory and reporting workflows

  • Comfort with occasional travel for site surveys, CLS/ILA walks, and vendor meetings

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