We’re looking for an SDN Network Engineer to help develop, maintain, and optimise the cloud networking stack for a large‑scale, sovereign cloud platform.

You’ll work across Linux networking, automation, and open‑source SDN components to ensure a secure, scalable, and highly available environment.

• Freelance cooperation

• Start date: ASAP/01.07.2026

• Duration: until 31.10.2026, with the possibility of extension for an additional 6-12 months

Key requirements:

• Production experience with OVS / OVN

• Strong cloud networking skills: VPC, NAT, VPN, BGP, VXLAN, LB, DNS

• Solid understanding of Linux networking (namespaces, iptables, tc, kernel)

• Experience with OpenStack Neutron

• Programming in C/C++, Go, Python, or Bash

• Familiarity with Kubernetes networking & CNI (e.g., Calico)

• DPDK experience is a plus

• Good command of English

Nice to have:

• Experienced in using AI tools in day-to-day workflow

Main responsibilities:

• Design and operate the software-defined networking layer for cloud infrastructure.

• Contribute to open-source projects: Open vSwitch, OVN, OpenStack Neutron, Linux Kernel.

• Design and develop networking APIs and cloud network platform products.

• Implement observability: metrics, distributed tracing, structured logging for network services.

• Build automation for network operations and operational workflows.

• Lead root cause analysis on network incidents and implement fixes.