# Senior Network Engineer

**Company**: Nebius
**Location**: United States
**Work arrangement**: remote
**Experience**: senior
**Job type**: full-time
**Salary**: $125,000 – $180,000 USD per year
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/nebius/jobs/4817202101?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_6034aa18-123

## Description

We are looking for a Senior Network Engineer to design, build, and operate large-scale, high-performance data center networks supporting GPU-dense AI workloads.

You will take end-to-end ownership of service provider–grade and CLOS-based network infrastructure, ensuring reliability, scalability, and predictable performance across distributed environments.

Your responsibilities will include:

- Designing and evolving scalable data center network architectures (CLOS/leaf-spine) for high-throughput, low-latency environments

- Owning end-to-end deployment and lifecycle management of routing and switching infrastructure across production environments

- Developing and maintaining network design documentation, standards, and operational procedures

- Planning, executing, and validating network infrastructure testing, including vendor evaluation and benchmarking

- Diagnosing and resolving complex network issues across the TCP/IPv4/v6 stack in large-scale distributed environments

- Optimizing traffic engineering, ECMP, and load balancing strategies to ensure efficient utilization of network resources

- Implementing and operating MPLS-based technologies, including L3 VPNs and segment routing (SR-MPLS, SRv6)

- Collaborating with hardware, systems, and software teams to integrate networking with compute and storage infrastructure

- Automating network operations and workflows to improve reliability, scalability, and operational efficiency

- Ensuring high availability and performance of production networks through proactive monitoring and continuous improvement

We expect you to have:

- Expert-level knowledge (CCIE/JNCIE or equivalent) in MPLS, routing, and switching for service provider and data center networks

- Strong experience with Ethernet switching, VXLAN, and modern cloud overlay networking technologies

- Deep expertise in routing protocols including BGP and IS-IS

- Hands-on experience with segment routing (SR-MPLS, SRv6), L3 MPLS VPNs, and ECMP-based traffic balancing

- Proven experience designing and documenting large-scale network architectures

- Experience developing and executing network testing strategies and validating vendor solutions

- Strong troubleshooting skills across the TCP/IPv4/v6 stack in CLOS-based data center environments

- Solid understanding of network hardware architecture, QoS mechanisms, and packet processing pipelines

- Hands-on experience with network equipment from vendors such as Juniper, Arista, Huawei, and Mellanox

- Working proficiency in English

It will be an added bonus if you have:

- Working proficiency in an additional European language

- Experience with public cloud networking and GPU/InfiniBand environments

- Knowledge of software-defined networking (SDN) overlays in cloud environments

- Proficiency in Python, Go, or other programming languages in Linux environments

- Experience using programming languages for network automation and tooling

Working conditions:

- Remote work within the United States

- Work closely with globally distributed infrastructure and engineering teams

- Participation in on-call rotations to support production environments

Key employee benefits:

- Comprehensive health insurance

- 401(k) plan with company contribution

- Paid time off and public holidays

- Flexible working hours

- Professional development and certification support

Compensation:

- $125,000 – $180,000 USD per year, depending on experience and qualifications

## Skills

### Required
- MPLS
- routing
- switching
- Ethernet switching
- VXLAN
- BGP
- IS-IS
- segment routing
- L3 MPLS VPNs
- ECMP-based traffic balancing
- network architecture
- network testing
- troubleshooting
- network hardware architecture
- QoS mechanisms
- packet processing pipelines
- Juniper
- Arista
- Huawei
- Mellanox

### Nice to have
- additional European language
- public cloud networking
- GPU/InfiniBand environments
- software-defined networking (SDN)
- Python
- Go
- network automation

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/nebius/jobs/4817202101?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)