Senior Performance & Infrastructure Engineer - HPC

The organizationOur client operates one of the largest GPU infrastructures in the world — 100,000+ GPUs. Their infrastructure doubles in size every year. We’re looking for engineers who love getting deep into Linux systems, pushing hardware and software to their limits, and making the world’s fastest AI and HPC workloads run even fasterThe roleYou’ll join a small, senior team that works between the hardware and Linux OS layers, solving performance problems that affect tens of thousands of GPUs. This is hands-on, high-impact engineering where microsecond gains matter and every optimization is felt at global scale.What you’ll doTrace, profile, tune and optimize Linux kernel & subsystems (CPU scheduling, memory management, networking stack) for GPU clusters and InfiniBand fabricsTroubleshoot and resolve complex performance bottlenecksIntegrate and validate new GPU hardware & infra (KVM/QEMU, PCIe devices, Kubernetes)Improve monitoring, alerting, and automation for large-scale, distributed systemsOccasionally assist customers in optimizing workloadsYour profileKey requirements (non-negotiable):Solid Linux internals knowledge, with kernel tracing, profiling and tuning experience (eg. perf, ftrace, eBPF, sysctl, kgdb etc.)Excellent programming skills, C or C++ system-level code, with a good grasp of data structures & algorithmsExperience in performance optimization (eg. high-load/high-throughput, low-latency, low-jitter, memory bypasses, zero-copy, lock-free, synchronization across large-scale clusters etc.)Scripting or development skills in Go, Python, or similarNice-to-haves (not key):Large-scale clusters (GPU or CPU)Virtualization stacks (KVM/QEMU), Slurm, KubernetesDeep learning frameworks (eg. PyTortch, Tensorflow...)GPU-specific stack (eg. CUDA, NCCL....)This is for you if youLove solving deep technical challenges, care about performance downto the microsecond, and want to work on infrastructure that pushes the limits of what’s possible.What's offeredSalary: up to 160k + 25% bonus.Flexible working arrangements.A dynamic and collaborative work environment that values initiative and innovation.Location: Amsterdam or full-remote from anywhere within the EU/EEROriginally posted on Himalayas