C++ Software Engineer — Systems at Vast.ai in San Francisco, CA

Summary: Vast.ai is a company focused on democratizing and decentralizing AI computing. They are seeking a Systems Software Engineer to improve the performance, reliability, and capability of their infrastructure and containerization technologies. Responsibilities: - Expand and extend our GPU cloud daemon - Design and deploy market-based resource management systems - Harden code and infrastructure to meet zero‑trust standards - Benchmark, profile, and eliminate bottlenecks across hypervisor, container, and network layers Required Qualifications: - Strong programming skills in at least one language, ideally C++ - Extensive knowledge of Linux kernel internals, containerization technologies, and virtualization - Deep understanding of workload and network isolation techniques in multi-tenant environments - Experience in securing and hardening cloud infrastructure, particularly in environments with untrusted workloads - Strong background in workload and network isolation, network security, and cloud-native security practices - Experience with GPU programming and an understanding of GPU-specific security concerns Required Skills: C++, Linux, Containerization Important Skills: Cloud Security, GPU Programming Nice-to-Have Skills: Intrinsic Drive Benefits: Comprehensive health, dental, vision, and life insurance, 401(k) with company match, Meaningful early-stage equity, Onsite meals, snacks, and close collaboration with founders/tech leaders, Ambitious, fast-paced startup culture where initiative is rewarded