L3 Support Engineer
About this job
Nebius is pioneering cloud infrastructure for the global AI economy, delivering a full-stack AI cloud platform that helps enterprises and developers handle everything from data training to production deployment. As an L3 Support Engineer at Nebius in Hyderabad, you will join a brand-new L3 Support Line team serving as the core datacenter center of expertise for servers, deep Linux diagnostics, and firmware. In this senior technical capacity, you will tackle complex incidents, perform advanced root cause analysis, and collaborate closely with R&D and ODM vendors to drive permanent fixes. A normal day typically involves leading high-severity incident investigations, analyzing hardware and software interactions, managing firmware updates, creating technical runbooks, and mentoring L1 and L2 teams to elevate overall operational capabilities.
Responsibilities
- Lead advanced root cause analysis for complex issues like GPU failures, firmware bugs, and Linux-level faults.
- Identify cross-site recurring patterns to develop durable platform fixes.
- Manage technical workstreams during high-severity operational incidents.
- Collaborate with ODM vendors and R&D teams to push for platform and component-level resolutions.
- Support the risk assessment, staging, and rollout of BIOS and BMC firmware updates.
- Create scalable troubleshooting guides, error catalogs, and operational playbooks.
- Travel to datacenters for complex troubleshooting and incident containment when necessary.
Requirements
- Strong hands-on background working with datacenter servers
- Deep technical expertise in Linux troubleshooting and performance triage
- Ability to diagnose issues across hardware, BIOS/BMC firmware, and logs
- Structured incident response experience with clear communication under pressure
- Demonstrated experience driving evidence-based escalations with vendors and R&D
- Fluent in written and spoken English
- Authorized to work in India
Good to have
- Familiarity with GPU server platforms and tooling such as nvidia-smi and dcgmi
- Experience with ipmitool, Redfish workflows, and firmware lifecycle management
- Scripting abilities in bash and basic Python for log collection and automation
- Exposure to OCP-based platforms and ODM manufacturing ecosystems
- Experience supporting enterprise bare metal customers under contractual SLAs
Who should apply
This role suits senior technical professionals with extensive experience in datacenter servers, deep Linux diagnostics, and firmware management. Ideal candidates thrive under pressure, possess strong incident response skills, and excel at driving evidence-based vendor escalations. Because the posting does not mention freshers, it targets experienced engineers ready to establish and shape a brand-new L3 support line.
Frequently asked questions
What is the primary focus of the L3 Support Engineer role at Nebius?
The role focuses heavily on deep technical investigations, root cause analysis beyond L2 depth, and driving permanent fixes with R&D and vendors.
Where is the L3 Support Engineer position located?
This position is based in Hyderabad, India, with an option to work on-site.
What technologies and systems will I work with at Nebius?
You will work with datacenter servers, deep Linux diagnostics, BIOS and BMC firmware, and potentially GPU server platforms and OCP-based systems.
Can freshers apply for the L3 Support Engineer opening at Nebius?
The job posting does not mention freshers and is structured as a senior technical role requiring prior datacenter and Linux troubleshooting experience.
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