Private Cloud Network Fabric Engineer

Join a newly formed Private Cloud team building a greenfield on-premises private cloud platform based on OpenStack. This role is focused on designing, operating, and continuously improving the physical network fabric that supports a highly available, scalable, and performant cloud environment. Responsibilities

• Design, build, and operate a dedicated leaf-spine network fabric for a private cloud environment with OpenStack integration
• Configure and support core data center networking technologies, including BGP, EVPN, VXLAN, and ECMP
• Manage network platforms in a production environment, including Cisco and other enterprise data center technologies
• Oversee network hardware and software lifecycles, including deployments, upgrades, and vendor evaluations
• Automate network changes and operational tasks using modern software development practices and CI/CD pipelines
• Create and maintain observability dashboards to track telemetry, performance, and capacity trends
• Partner with engineering teams to troubleshoot incidents, resolve complex issues, and support platform changes
• Apply operational engineering and SRE principles to improve reliability and scalability

• At least 5 years of experience in a relevant network engineering role
• Strong hands-on experience with Cisco NX-OS and/or Arista EOS
• Proven experience operating large-scale production data center networks supporting OpenStack, HPC, or AI platforms
• Practical knowledge of EVPN, VXLAN, and BGP
• Experience using Ansible, Python, and/or Terraform to automate networking operations
• Solid understanding of Git and infrastructure as code practices
• Strong troubleshooting, diagnostic, and performance tuning abilities
• Good Linux skills

Preferred Skills

• Familiarity with OpenStack Neutron, OVN, and ML2
• Experience with Prometheus, Grafana, and OpenTelemetry
• Exposure to SRE practices such as service level objectives and error budgets
• Knowledge of SR-IOV, SmartNICs, and DPUs
• Understanding of RoCE/RDMA and high-performance storage networking
• Experience with network performance benchmarking

Horizontal is committed to fostering an inclusive workplace where different perspectives, backgrounds, and experiences are valued. We believe diversity, equity, and inclusion strengthen teams and help create better outcomes for everyone.