SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands‑on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All employees are expected to have strong communication skills.
Software Engineer - Platform Core (C++, C) en xAI
Presencial - Palo Alto, California, United States; Seattle, Washington, United States
Más vacantes en xAISalary
USD 180,000 - 440,000
Requirements
Skills
- Hands-on systems programming experience in C or C++
- Strong operating systems fundamentals (scheduling, memory management, I/O) — articulate how a computer works from hardware to applications
- Understanding of computer networking, host OS stack, and network devices like switches and routers
- Excellent written and verbal communication skills
- Deep knowledge of the Linux kernel and its networking stack – transferable experience with another production‑grade kernel is okay
- Proficiency with debugging tools spanning kernel, network, and userspace (e.g., ftrace, perf, Wireshark/tcpdump, eBPF, gdb, and more)
- Experience bringing up new hardware from scratch – flashed bare‑metal software on a microcontroller with JTAG, or bootstrapped a Linux kernel and rootfs on new hardware
- Demonstrated track record of developing and optimizing device/peripheral drivers – ideally for high-speed interfaces, or with advanced considerations like DMA and cache coherency
- Understanding of major peripheral hardware interface standards (Ethernet, PCIe, I2C, SPI, etc.) – can critically review a schematic and debug these interfaces if needed
- Experience with product security, OS/system hardening, and secure boot schemes
Responsibilities
- Build and maintain the lean, high‑reliability Linux‑based operating system that underpins our supercomputer network fabric
- Write (or rewrite) high‑performance device drivers to extract the maximum physical capability from our network and compute hardware
- Manage deployment, operation, and debugging of our platform in production, including rigorous resolution and root‑causing of anomalies to ensure the system is constantly improving in reliability
- Develop and constantly improve our tools for observability and configuration management
- Collaborate with our hardware teams and external partners to design the next generation of supercomputer hardware – and then bring up our OS and software stack on it
Technologies
CC++Linux kernelNetworking stackftraceperfWiresharktcpdumpeBPFgdbJTAGmicrocontrollerLinux kernel bootDMAcache coherencyPCIeI2CSPIsecure boot schemes
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