L3 Support Engineer

Nebius; Mäntsälä; On-site; EUR 60,000 - 80,000; Full time

Benefits offered by this job

Competitive salary

Comprehensive benefits package

Flexible working arrangements

Job summary

Dormont Manufacturing Co is seeking an experienced L3 Support Engineer to establish a datacenter center of expertise in Mäntsälä, Finland. This senior technical role will focus on deep investigations, cross-site pattern detection, and driving permanent fixes with R&D and ODM vendors.

Key responsibilities include leading root cause analysis of various technical issues, collaborating with vendors, and creating scalable troubleshooting guides. Applicants should possess strong hands-on experience with datacenter servers and deep Linux troubleshooting, as well as fluent English communication skills.

The company offers competitive salary and comprehensive benefits, along with opportunities for professional growth in a dynamic work environment.

Qualifications

• Strong hands-on experience with datacenter servers and deep Linux troubleshooting.
• Ability to diagnose across hardware, BIOS/BMC firmware, and Linux.
• Experience driving evidence-based escalations with vendors/R&D.

Responsibilities

• Lead root cause analysis beyond L2 depth for various issues.
• Build evidence packs and drive escalations with ODM and R&D.
• Create scalable runbooks and troubleshooting guides.

Skills

Deep Linux troubleshooting

Hands-on experience with datacenter servers

Structured incident response

Fluent English (written and spoken)

Tools

nvidia-smi

ipmitool

Redfish workflows

Job description

Why work at Nebius

Nebius is leading a new era in cloud computing to serve the global AI economy. We create the tools and resources our customers need to solve real-world challenges and transform industries, without massive infrastructure costs or the need to build large in-house AI/ML teams. Our employees work at the cutting edge of AI cloud infrastructure alongside some of the most experienced and innovative leaders and engineers in the field.

Where we work
Headquartered in Amsterdam and listed on Nasdaq, Nebius has a global footprint with R&D hubs across Europe, North America, and Israel. The team of over 800 employees includes more than 400 highly skilled engineers with deep expertise across hardware and software engineering, as well as an in-house AI R&D team.

The role

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.

You’re welcome to work in our DC in Mäntsälä, Finland.

Your responsibilities will include:

• 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.

We expect you to have:

• 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).

It will be an added bonus if you 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.

What we offer

• Competitive salary and comprehensive benefits package.

• Opportunities for professional growth within Nebius.

• Flexible working arrangements.

• A dynamic and collaborative work environment that values initiative and innovation.

We’re growing and expanding our products every day. If you’re up to the challenge and are excited about AI and ML as much as we are, join us!