L3 Data Center Engineer

Lintasarta; Jakarta Pusat; On-site; IDR 140,000,000 - 320,000,000; Full time

Job summary

Lintasarta seeks an experienced L3 Engineer / GPU Infrastructure Specialist to act as the highest technical authority within the managed service delivery team. You will engage when firmware-level analysis or vendor tooling is required, with on-call availability and onsite mobilisation as needed.

Responsibilities include leading OEM escalations, performing advanced NVIDIA InfiniBand and liquid cooling troubleshooting, and producing formal RCA reports.

Qualifications

• Min. 7 years in Data Center / infrastructure with hands-on GPU server/HPC expertise at firmware and OEM level.
• Advanced GPU diagnostics including Nvidia-smi, lspci, PCIe/NVLink topology, and ECC/XID error tracking.
• Experience with NVIDIA InfiniBand networking, fabric troubleshooting, and escalation processes with vendors.

Responsibilities

• Handle incidents beyond L2 resolution, including firmware-level failure analysis and OEM tooling.
• Own OEM escalation lifecycle and interface with NVIDIA and server/network OEM teams through to resolution.
• Escalate to Principal Expert for manufacturer-level intervention or multi-vendor failures.
• Act as technical reference for L1/L2 teams in real-time diagnostics and cross-stack resolution strategies.
• Lead advanced troubleshooting of NVIDIA InfiniBand fabric and liquid cooling system root-cause analysis.
• Attend governance reviews to advise on failure trends and infrastructure risk.
• Contribute to knowledge base with escalation playbooks and training for junior staff.

Skills

GPU servers/HPC

Firmware & OEM level diagnostics

NVIDIA InfiniBand networking

Fabric troubleshooting

NVIDIA diagnostics

OEM escalation leadership

Tools

OEM diagnostic tooling

Job description

The L3 Engineer / GPU Infrastructure Specialist is the highest technical authority within the managed service delivery team, engaged when L2 has exhausted all standard diagnostic and replacement procedures and the incident requires firmware-level analysis, OEM-specific tooling, or direct vendor engineering support. Operating on a 24×7 on-call basis with the ability to mobilise onsite when required, L3 specialists serve simultaneously as deep technical resolvers, OEM relationship owners, and knowledge anchors for the broader delivery team.

Responsibilities:

• Handles incidents beyond L2 resolution scope, including firmware-level failure analysis, NVLink/PCIe fabric anomalies, deep XID and ECC error investigations, and the application of OEM-specific diagnostic tooling unavailable at lower tiers; produces formal RCA and failure reports for every L3 engagement.
• Owns the complete OEM escalation lifecycle, from defining trigger conditions and assembling evidence packages, to direct interface with NVIDIA, server OEM, and network OEM engineering teams, through to resolution tracking and formal closure.
• Escalates to the Principal Expert when incidents exceed L3 resolution capability, including cases requiring manufacturer-level engineering intervention, multi-vendor cross-stack failures, or issues with no established resolution precedent.
• Serves as the authoritative technical reference point for L1 and L2 personnel throughout incident handling, providing real-time diagnostic guidance and directing cross-stack resolution strategy.
• Leads advanced troubleshooting of the NVIDIA InfiniBand backend fabric (fabric health, NCCL collective performance, network congestion) and root-cause analysis of liquid-cooling system failures at CDU and secondary loop level.
• Attends regular governance review meetings to advise on failure trends, troubleshooting strategy, and infrastructure risk.
• Contributes to the operational knowledge base through escalation playbooks, known-issue documentation, and structured competency uplift of the L1/L2 team via the shadow/pairing model.

Qualifications & Skills:

• Min. 7 years in Data Center / infrastructure, with deep hands-on expertise on GPU servers / HPC clusters at firmware and OEM level, beyond day-to-day operations.
• Advanced GPU diagnostics (Nvidia-smi/lspci, PCIe/NVLink link & topology, thermal/power, ECC & XID error tracking).
• NVIDIA InfiniBand networking, fabric troubleshooting, link/subnet manager, OEM escalation.
• Liquid cooling systems (CDU & secondary loop) to root-cause analysis level.
• Demonstrated end-to-end OEM escalation leadership.
• Manufacturer-level capability for complex, cross-stack infrastructure issues.