Europe Arbeitnow ·
full-timeSenior/tech Lead Backend Engineer (managed Kubernetes)
Nebius · Europe
Nebius is a cloud infrastructure company focused on building a full-stack platform tailored for the AI economy, specifically targeting large-scale model training and production deployment. As a Senior or Tech Lead Backend Engineer for the Managed Kubernetes team, you will lead the Core team responsible for the service control plane, API development, cluster autoscaling, and platform integrations. The role is designed for hands-on leaders who will balance individual contribution—such as writing and reviewing code and participating in on-call rotations—with the management of a team of mid-to-senior engineers. You will be expected to maintain technical vision, collaborate with product management, and drive complex projects like optimizing control planes for tens of thousands of GPU nodes. This position is well-suited for experienced software engineers with over eight years of professional experience, particularly those with deep expertise in Golang and Kubernetes administration. Candidates should be comfortable transitioning between high-level technical leadership and tactical development, as the role requires deep involvement in incident mitigation and the architectural design of Kubernetes-native systems to support high-performance AI workloads.
About Nebius: 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. Nebius Managed Kubernetes (mk8s) mission is to grow the Nebius cloud platform by providing a Kubernetes-native way to run AI systems with high efficiency and low operational overhead. With a single click, it provides a Kubernetes cluster on top of Nebius services for compute (VMs) and networking. In 2026, the service is scaling 10× and is expected to manage customer workloads across tens of thousands of GPU servers in more than 10 data centers. You will lead the mk8s Core team, one of three mk8s teams. The Core team owns the API, the core of the service control plane, cluster autoscaling, platform integrations, and running k8s add-ons. At Nebius, team leads are hands-on. We expect you to be a senior or staff engineer now (or earlier in your career). You will start as an individual contributor to gain context, then take on managerial responsibilities. In this position, you will be responsible to: Lead by example. Set the quality bar by spending a significant portion of your time on IC work: writing and reviewing code, leading projects, and participating in on-call rotation, incident mitigation, and post-incident analysis. Manage 4–8 mid-to-senior engineers. Provide context, coach, and give regular feedback. Maintain the technical vision for your area of responsibility. Collaborate with the Product Manager and Service Owner to shape product vision and plans. Examples of outcomes you could drive as a Team Lead Optimize the service control plane to create and manage 20K GPU nodes in a single Kubernetes cluster, enabling a major contract for the company. Integrate cluster autoscaling approaches (e.g., Karpenter) to improve resource utilization and support seamless auto-upgrades. Provide a Kubernetes-native way to use local disks to reduce disk I/O bottlenecks for AI training and inference, improving efficiency. Deliver managed Layer 7 load balancers to reduce operational overhead for customers. What you will bring to the table: 8+ years of professional software engineering or management experience Excellent knowledge of Golang, or you are ready to quickly switch to this programming language Expertise with Multi-month technical projects Tech leading engineers Owning multi-month technical projects. It would be an added bonus if you had: Experience with Team management, Kubernetes administration, Developing Kubernetes controller. #LI-ET3 Benefits & Perks: Competitive compensation Career growth and learning opportunities Flexibility and ownership Collaborative and innovative culture Opportunity to work on impactful AI projects International environment and talented teams What's it like to work at Nebius: Fast moving - Bold thinking - Constant growth - Meaningful impact - Trust and real ownership - Opportunity to shape the future of AI Equal Opp
| Role | Senior/tech Lead Backend Engineer (managed Kubernetes) |
|---|---|
| Company | Nebius |
| Location | Europe |
| Type | full-time |
| Compensation | Not disclosed |
| Deadline | Rolling |
Typical process for this type of role
A general guide — the exact steps for this specific listing may vary; check the original posting for details.
- 1ApplicationSubmit your resume through the apply link.
- 2ScreeningRecruiter reviews your background against the role.
- 3AssessmentA technical test, assignment, or coding round, depending on the role.
- 4Interview(s)One or more rounds with the hiring team.
- 5OfferOffer letter with compensation and start date.
Before you apply
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