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Senior System Engineer (Virtual Private Cloud Team)
ICT
💰 Salary Not shared
📊 Market 6,000 EUR–9,000 EUR/mo (72,000 EUR–108,000 EUR/yr)
About the Company
Nebius is leading a new era in cloud infrastructure for the global AI economy. We are building a full-stack AI cloud platform that supports developers and enterprises from data and model training through to production deployment, without the cost and complexity of building large in-house AI/ML infrastructure. Built by engineers, for engineers. From large-scale GPU orchestration to inference optimization, we own the hard problems across compute, storage, networking and applied AI. Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D.
About the Role
The VPC (Virtual Private Cloud) team builds and operates the core networking layer of our cloud platform. We enable virtual machines to communicate reliably by abstracting them from the underlying physical network, providing seamless IP-based connectivity even as workloads move across the datacenter. Our team designs secure, isolated private networks for customers, connects them to the public internet, and delivers essential networking services such as load balancers, firewalls, and security groups. Because nearly every cloud application depends on networking, VPC is a foundational service for the entire platform. Stability and resilience are our top priorities-we engineer systems to remain reliable and operational even when parts of the cloud experience failures. Our team both develops the control-plane, written in Golang, and supports open-source based dataplane, written mostly in C. This makes us quite unique in that we both have high-level control plane tasks and low-level system research tasks, with different team members focusing more on one part or the other.
Responsibilities
- ● Increase service scalability and reliability
- ● Develop the control & data plane for Nebius Cloud network services
- ● Develop service functionality (e.g. IPv6 support, service endpoints, VPC peering, L7 load balancers and other networking services)
- ● Improve the internal architecture, optimizing interaction with related services
- ● Debug datapath and kernel issues, including performance related issues
- ● Perform load testing for services
Requirements
- ● Capable of writing reliable, high-performance concurrent code
- ● Proficient in Go and able to read C/C++, or be ready to learn both
- ● Familiar with routing network traffic
- ● Worked with OVS, VPP, DPDK, Linux kernel network subsystem or other network dataplanes
- ● Well-versed in virtual networks and overlays, SDN, NFV, DPI, network protocols, routing and tunneling, BGP, and MPL
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