Senior HPC Engineer

Essential Skills

• HPC & AI Infrastructure:

• Expert-level knowledge of NVIDIA Base Command Manager (BCM) or Metal-as-a-Service (MaaS) provisioning tools.

• Deep understanding of Slurm configuration (cgroups, plugin development, accounting).

• Proficiency with NVIDIA DGX/HGX hardware architecture and the associated software stack (Drivers, CUDA, DCGM).

• Linux & Automation (DevOps for Hardware):

• Mastery of Red Hat Enterprise Linux (RHEL) / Ubuntu internals (Systemd, Kernel Tuning, Hugepages).

• Advanced proficiency in Ansible (writing custom modules/roles) and Python (automating admin tasks).

• Experience with Git workflows (Branching, PRs, CI/CD).

• Containerisation:

• Hands-on experience with Docker, Singularity/Apptainer, and Kubernetes (specifically NVIDIA GPU Operator and NVIDIA Network Operator).

Desirable Experience

• Network Awareness: Ability to troubleshoot basic InfiniBand/RoCEv2 issues (ibstat, perf query) to distinguish between a "Node Issue" and a "Network Issue."
• Storage Integration: Experience mounting high-performance parallel file systems (VAST/Lustre/WEKA/GPFS) and tuning client-side performance.
• Certifications:
• NVIDIA Certified Associate - AI in the Data Center.
• Red Hat Certified Engineer (RHCE).
• CKA (Certified Kubernetes Administrator).

Success Metrics (KPIs)

• Deployment Velocity: Reduction in "Time-to-Hello-World" (time from power-on to running the first successful GPU job) for new clusters.
• Code Quality: >95% of Pull Requests pass automated linting and require fewer than 2 review cycles before merge.
• Stability: Zero "Configuration Drift" incidents in production (e.g., manual changes breaking the cluster) due to strict IaC enforcement.

#LI-RB1

About the Role

The Senior HPC Engineer is the "Foreman" of the "AI Factory". While the Domain Architect defines the architectural vision, you are responsible for the hands-on build and deployment. You act as the Technical Squad Lead for our offshore engineering teams, bridging the gap between the onshore architectural vision and the hands-on execution.

As a System Integrator, we thrive on velocity and precision. You will not just "maintain" clusters; you will lead the automated deployment of NVIDIA SuperPOD and BasePOD infrastructure for global enterprise clients. You are the "Lieutenant" to the Domain Architect, translating High-Level Designs (HLDs) into executable Ansible playbooks and ensuring your squad of HPC Engineers delivers defect-free infrastructure.

In this role, you are 100% Delivery-Focused, split between Technical Leadership (40%) and Hands-on Engineering (60%). You are the escalation point for complex kernel panics, the guardian of our Infrastructure-as-Code (IaC) repository, and the mentor who unblocks junior engineers when a Slurm job fails to schedule.

Key Responsibilities

• Hands-on Engineering & Automation (60%)

• Cluster Provisioning Factory:

• Lead the deployment of NVIDIA Base Command Manager (BCM) (formerly Bright Cluster Manager) to provision bare-metal DGX/HGX nodes at scale.

• Develop and maintain the Ansible / Terraform library used to configure OS settings, user authentication (LDAP/AD), and storage mounts across hundreds of nodes.

• Execute HPL (High-Performance Linpack) and NCCL-tests to validate cluster performance, tuning BIOS and OS parameters to hit "Gold Standard" benchmarks.

• Scheduler & Workload Orchestration:

• Configure complex Slurm Workload Manager policies, including Fair Share, Preemption, and GPU Partitioning (MIG).

• Integrate Kubernetes-based orchestrators (e.g., NVIDIA Base Command, Run:AI, or Red Hat OpenShift) with the underlying HPC hardware.

• Deep-Dive Troubleshooting:

• Debug "Silent Data Corruption" and "Xid Errors" on GPUs, analysing nvidia-smi logs and kernel message buffers (dmesg).

• Diagnose fabric-related performance drops (e.g., Identifying a specific flapping link causing global slowdowns) in collaboration with the Network Squad.

• Squad Leadership & Quality Assurance (40%)

• Technical Direction (The "Foreman"):

• Translate the Low-Level Design (LLD) provided by the Domain Architect into granular Jira tasks for your squad of HPC Engineers.

• Conduct daily stand-ups to unblock engineers, clarifying requirements and making technical decisions on the fly (e.g., "Use Ansible roles, not shell scripts for this").

• Code Quality & Governance:

• Act as the Primary Gatekeeper for the code repository. Perform mandatory Code Reviews on all Pull Requests (PRs) to ensure idempotency and error handling.

• Enforce "Config-as-Code" discipline, ensuring no manual changes are made to production clusters without a committed playbook.

• Mentorship:

• Guide mid-level and junior engineers on best practices for Linux Systems Administration and HPC environments.