# Senior Optical Network Engineer II

**Company**: CoreWeave
**Location**: Livingston, NJ
**Experience**: senior
**Job type**: full-time
**Salary**: $165,000 to $220,000
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/coreweave/jobs/4715308006?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_412f4e8d-c2e

## Description

CoreWeave is seeking a Senior Optical Network Engineer II to help design, build, operate, and evolve its global optical backbone. The successful candidate will have significant hands-on experience designing, deploying, and operating large-scale production optical networks.

Responsibilities:

- Design, engineer, and operate long-haul, metro, and data-center interconnect optical networks.

- Engineer DWDM systems across dark-fiber infrastructure.

- Design optical paths including amplification, regeneration, wavelength planning, spectrum allocation, and optical power budgets.

- Engineer and operate C-band and L-band optical systems.

- Deploy, configure, operate, and troubleshoot Nokia, Ciena, and other optical platforms.

- Commission new fiber spans, wavelengths, and optical systems.

- Perform fiber characterization and validate new dark-fiber routes before production deployment.

- Analyze span loss, connector loss, reflectance, dispersion, OSNR, Q-factor/Q-margin, BER, and other optical performance characteristics.

- Troubleshoot complex optical impairments and fiber-related issues using platform telemetry and appropriate optical test equipment.

- Design amplifier chains and understand EDFA and Raman amplification requirements.

- Engineer coherent optical transmission across metro and long-haul networks.

- Plan and execute network capacity expansions.

- Develop standards for optical network architecture, deployment, commissioning, and operations.

- Build monitoring and telemetry that identifies optical degradation before it becomes a production-impacting failure.

- Participate in incident response and root-cause analysis for optical network events.

- Work directly with dark-fiber providers, carriers, data-center operators, and equipment vendors.

- Evaluate and qualify new optical platforms, coherent optics, and photonic technologies.

- Develop automation and tooling that allows the optical network to scale without equivalent growth in manual operational work.

- Mentor other engineers and help establish the technical standards and engineering culture of a new optical networking team.

Requirements:

- Strong hands-on experience with both Ciena and Nokia optical networking platforms.

- Experience with production deployment, configuration, troubleshooting, software lifecycle, hardware troubleshooting, and operational support.

- Strong experience with dark-fiber networks, including fiber characterization and acceptance testing.

- Deep understanding of DWDM and optical transmission technologies, including coherent optical transmission and C-band and L-band systems.

Preferred Qualifications:

- Experience with IP networking, particularly large IP backbones and protocols such as BGP, IS-IS, and MPLS.

- Experience with programming languages such as Python.

What We Offer:

- Competitive salary ($165,000 to $220,000).

- Comprehensive benefits package, including medical, dental, and vision insurance, 100% paid for by CoreWeave.

- Company-paid Life Insurance.

- Voluntary supplemental life insurance.

- Short and long-term disability insurance.

- Flexible Spending Account.

- Health Savings Account.

- Tuition Reimbursement.

- Ability to Participate in Employee Stock Purchase Program (ESPP).

- Mental Wellness Benefits through Spring Health.

- Family-Forming support provided by Carrot.

- Paid Parental Leave.

- Flexible, full-service childcare support with Kinside.

- 401(k) with a generous employer match.

- Flexible PTO.

- Catered lunch each day in office and data center locations.

- Casual work environment.

## Skills

### Required
- Ciena optical networking platforms
- Nokia optical networking platforms
- DWDM systems
- dark-fiber networks
- fiber characterization
- coherent optical transmission
- C-band and L-band systems

### Nice to have
- IP networking
- BGP
- IS-IS
- MPLS
- Python programming

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/coreweave/jobs/4715308006?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)