Company

Technology

SeniorNetworkEngineer

€72–108k ~AI est. Bulgaria FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Senior candidates.

The Brief

“Senior Network Engineer. Skills: Network architecture, Data center networking, AI infrastructure, High-performance computing. Design spine-leaf network architectures. Implement spine-leaf network architectures”

Industry & Context.

Technology
Problems you'll solve

Troubleshooting; Problem-solving; Performance analysis

Eligibility Requirements

No visa sponsorship

What They're Looking For.

Must Have

5 years of experience designing, 5+ years operating data center networking, Cumulus Linux (Cumulus NOS) expertise, Spine-leaf architectures experience, Layer 3 fabrics experience, Modern data center networking principles, Advanced BGP knowledge, Advanced EVPN knowledge, Advanced VXLAN knowledge, Large-scale routing environments knowledge, HPC infrastructure experience, GPU-intensive infrastructure experience, AI-focused infrastructure experience, Design scalable systems, Support thousands of nodes, Support large distributed workloads, Network automation experience, Python automation experience, Ansible automation experience, Terraform automation experience, Network observability platforms familiarity, Telemetry pipelines familiarity, Monitoring systems familiarity, Performance analysis tools familiarity, Troubleshooting skills, Problem-solving skills, Excellent communication abilities, Collaboration abilities, Documentation abilities, Work independently, Prioritize effectively, Authorized to work in US

Nice to Have

SONiC experience, Junos experience, Cloud networking technologies experience, VPCs experience, Direct Connect experience, Cloud Connect experience, NFV experience, NVIDIA networking technologies experience, InfiniBand experience, RoCE experience, RDMA experience, Multi-region backbone design experience, Bare-metal provisioning experience

What You'll Do.

Design spine-leaf network architectures

Implement spine-leaf network architectures

Maintain spine-leaf network architectures

Build Ethernet fabrics

Optimize Ethernet fabrics

Manage network technologies

Enhance network technologies

Support low-latency networking

Improve low-latency networking

Develop backbone connectivity

Develop WAN connectivity

Develop DCI connectivity

Develop edge connectivity

Design IaC frameworks

Implement IaC frameworks

Design automation frameworks

Implement automation frameworks

Troubleshoot performance issues

Troubleshoot congestion issues

Troubleshoot reliability issues

Troubleshoot connectivity issues

Improve network observability

Contribute to technical documentation

Contribute to operational procedures

Contribute to architecture standards

Contribute to best practices

Participate in infrastructure planning

Participate in continuous improvement

How You'll Work.

Team & Collaboration

Collaborate with infrastructure teams; Collaborate with storage teams; Collaborate with platform teams; Collaborate with operations teams; Cross-functional collaboration

Communication Scope

Technical documentation; Operational procedures; Architecture standards; Best practices

Full Job Description

## Accountabilities Design, implement, and maintain scalable spine-leaf network architectures for large-scale data center and AI infrastructure environments. Build and optimize high-performance Ethernet fabrics supporting GPU clusters, AI training workloads, and inference operations. Manage and enhance network technologies including BGP, EVPN, VXLAN, and advanced Layer 3 routing environments. Support and improve low-latency networking solutions, including RDMA, RoCE, and other high-performance transport technologies. Develop and maintain backbone, WAN, data center interconnect (DCI), and edge connectivity solutions. Collaborate closely with infrastructure, storage, platform, and operations teams to deliver integrated and resilient networking solutions. Design and implement Infrastructure-as-Code (IaC) and automation frameworks to streamline network provisioning, configuration management, and operational processes. Troubleshoot complex performance, congestion, reliability, and connectivity issues across distributed environments. Improve network observability through telemetry, monitoring, analytics, and operational visibility initiatives. Contribute to technical documentation, operational procedures, architecture standards, and best practices to support scalability and reliability. Participate in infrastructure planning and continuous improvement efforts to ensure network platforms can support future growth. Requirements: Minimum of 5 years of experience designing and operating large-scale data center networking environments. Hands-on expertise with Cumulus Linux (Cumulus NOS) in production environments. Strong experience with spine-leaf architectures, Layer 3 fabrics, and modern data center networking principles. Advanced knowledge of BGP, EVPN, VXLAN, and large-scale routing environments. Experience supporting high-performance computing (HPC), GPU-intensive, or AI-focused infrastructure environments. Proven ability to design scalable systems capable of supporting t

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