Virtualization / Compute Systems Engineer ($250K – $300K + Equity) at Blaxel

Jack & Jill/External ATS • San Fransisco, CA

17d • $250,000 - $300,000

About The Position

Join a high-performance team building an AI-native cloud platform from the ground up. You will own the virtualization layer, extending a Firecracker fork to achieve sub-25ms cold starts for agentic workloads. This is a foundational role for a systems expert to architect secure, multi-tenant isolation and low-latency compute at massive scale.

Requirements

• Deep proficiency in Rust and/or C/C++ with a strong understanding of Linux internals like KVM, virtio, and kernel memory management.
• Proven experience with virtualization technologies such as Firecracker, QEMU, or Cloud Hypervisor in a production or open-source context.
• Skilled in systems performance analysis using modern Linux features like eBPF or io_uring to debug across kernel and userspace boundaries.

Responsibilities

• Design and implement low-level virtualization features on a Firecracker fork, focusing on VM lifecycle and memory optimization.
• Develop kernel-level optimizations and custom device models to minimize latency and maximize throughput for specialized AI workloads.
• Profile and optimize critical paths in the VM creation pipeline while building robust monitoring and observability tools for production.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed