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From the employer's careers site First seen 28 Oct 2026

L3 Support Engineer

Nebius Béthune, Pas-de-Calais On-site senior full-time

The employer hasn't listed a salary.

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Description

We are building our L3 Support Line from scratch to serve as the datacenter center of expertise for servers, firmware (BIOS/BMC), and deep Linux diagnostics across Europe and the US.

This is a senior technical role focused on deep investigations, cross-site pattern detection, and driving permanent fixes with R&D and ODM vendors. You will turn complex incidents into scalable solutions and elevate L1/L2 capabilities through strong technical enablement.

Responsibilities

Deep Technical Investigation (Primary Focus)

  • Lead root cause analysis beyond L2 depth (GPU failures, firmware issues, Linux-level faults, HW/SW interactions).
  • Detect recurring patterns across sites and convert findings into durable fixes.
  • Own technical workstreams during high-severity incidents.

Vendor & R&D Collaboration

  • Build evidence packs and drive escalations with ODM and R&D.
  • Push for firmware, component, and platform-level resolutions.
  • Track outcomes and ensure knowledge flows back to operations.

Firmware & Platform Readiness (BIOS/BMC)

  • Support validation and rollout of firmware updates (risk assessment, staging, rollback planning).
  • Help operationalize platform standards across datacenters.

Knowledge & Enablement

  • Create scalable runbooks, troubleshooting guides, and error catalogs.
  • Turn investigations into playbooks that elevate L1/L2 teams.

Hands-on Support (As Needed)

  • Travel to datacenters for complex troubleshooting, new platform readiness, or incident containment.

Requirements

  • Strong hands-on experience with datacenter servers and deep Linux troubleshooting.
  • Ability to diagnose across hardware, BIOS/BMC firmware, and Linux (logs, drivers, storage basics, performance triage).
  • Structured incident response experience and clear communication under pressure.
  • Experience driving evidence-based escalations with vendors/R&D.
  • Fluent English (written and spoken).

Nice to Have

  • Strong familiarity with GPU server platforms and tooling (for example: nvidia-smi, dcgmi, Linux logs correlation).
  • Experience with ipmitool and Redfish workflows, firmware lifecycle, and staged rollouts.
  • Scripting skills (bash and basic Python) for log collection, triage automation, and simple reliability analysis.
  • Exposure to OCP-based platforms and ODM manufacturing ecosystems.
  • Experience supporting enterprise bare metal customers under contractual SLAs.

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

Skills

Required

Nice to have

  • GPU server platforms
  • ipmitool
  • Redfish workflows
  • scripting
  • OCP-based platforms

Ready to apply?

You apply with the employer directly. Their original posting is here: https://job-boards.greenhouse.io/nebius/jobs/4794437101

Apply on Nebius