Senior Kernel & Systems Engineer - Custom Linux + GPU

Chikara HR; Paris; Sur place; EUR 85 000 - 100 000; Plein temps

Avantages offerts par ce poste

Meaningful equity

Budget for training

Flexible working arrangements

Résumé du poste

NEXUS is hiring in Paris to build a confidential AI platform with a custom Linux kernel at its core. This on-site role targets senior systems engineers who enjoy low-level work on memory, PCIe, and GPU integration.

You will own end-to-end kernel components at an early stage, with publishable work and meaningful BSPCE equity. You will operate in a fast-paced, English-speaking team, with the requirement to speak French for client interactions.

Qualifications

• Expert in C/C++ with memory management and systems focus.
• Strong understanding of Linux internals, DMA, PCIe and hardware behavior.
• Proven ability to optimize systems and demonstrate profiling results.

Responsabilités

• Build and maintain a stripped-down custom Linux kernel bridging CPU-encrypted memory with GPU compute.
• Make the GPU read encrypted memory safely and keep I/O air-gapped.
• Provision and tune NVIDIA GPUs, including PCIe passthrough and time-slicing.
• Wring latency out of a tightly constrained system, one context switch at a time.
• Contribute to open source where possible.

Connaissances

Low-level C/C++

Linux internals

Profiling

Senior ownership

CUDA/GPU programming

PCIe/DMA hardware

Outils

Linux kernel build tools

GPU provisioning tools

Description du poste

NEXUS is hiring in Paris to build a confidential AI platform with a custom Linux kernel at its core. This on-site role targets senior systems engineers who enjoy low-level work on memory, PCIe, and GPU integration.

You will own end-to-end kernel components at an early stage, with publishable work and meaningful BSPCE equity. You will operate in a fast-paced, English-speaking team, with the requirement to speak French for client interactions.