Next-Gen AI Hardware and Systems, SpaceXAI
$180-500k
More information about location
Building artificial intelligence
Job no longer available
Building artificial intelligence
1001+ employees
Job no longer available
$180-500k
More information about location
1001+ employees
Company mission
To build AI systems that can help humanity understand the world better.
Role
Who you are
- Proficiency in coding for accelerators, including CUDA, cutlass, HIP, ROCm, Triton, and other assembly languages or DSLs
- Experience simulating training workloads on novel AI hardware architectures
- Experience with compiler toolchain development and a deep understanding of the advantages and disadvantages of modular tools such as OpenXLA, MLIR, and LLVM
- Hands-on experience with distributed training and/or high-QPS production inference
- Deep understanding of the microarchitecture of AI accelerators and GPUs
- R&D experience in using AI for software compiler and/or hardware design
What the job involves
- All engineers and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates
- As part of xAI and in collaboration with our partners, you will co-design next-generation AI systems, spanning from silicon to software compilers to models. This complex role involves multiple levels of responsibility, including:
- Optimizing front-end compilers to transform training and inference workloads into compute graphs for new AI hardware, estimating their performance
- Writing PTX-level or lower-level codes for critical kernels to maximize performance on cutting-edge microarchitectures
- Designing and refining new hardware architectures to push the boundaries of computational efficiency
- Leveraging AI-driven approaches to revolutionize software compiler development and hardware design processes
- Programming Languages: Python, Rust, C++
- Kernel Coding: CUDA, Triton, PTX, other accelerator-specific Assemblies
- Modularized Compiling Tools: OpenXLA, MLIR, LLVM
- Hardware Descriptions: VHDL, Verilog, other accelerator-friendly hardware design languages, like Chisel
Application process
- After submitting your application, our team will review your CV and statement of exceptional work. If selected, you’ll be invited to a 15-minute phone interview, where a team member will ask introductory questions. Successful candidates will proceed to the main interview process, which includes four technical interviews:
- Coding Assessment: Complete a coding task in a language of your choice
- Systems Hands-On: Demonstrate practical skills in a live problem-solving session
- Project Deep-Dive: Present your past exceptional work to a small audience
- Meet-and-Greet: Connect with members of the broader team
Our take
SpaceXAI, formerly XAI, is Elon Musk's venture into the world of artificial intelligence, and like all things Musk, it's going big. It's setting out to build AI that helps humanity understand the universe, and it's starting with Grok, its conversational AI chatbot already integrated into X (formerly Twitter). With access to real-time data and a powerful ecosystem of Musk-led companies, SpaceXAI is certainly pushing towards artificial general intelligence at serious scale.
Like all bold ventures, SpaceXAI has faced its share of controversy, from questions about regulation to the overlap across Musk's businesses (most recently, XAI became a subsidiary of the Musk-owned SpaceX). But fans are still seeing the bigger picture: an interconnected tech ecosystem where AI, social media, and space exploration feed into one another.
The company made headlines in 2024 with its massive "Colossus" supercomputer project, powered by tens of thousands of Nvidia GPUs. While the data center's temporary power setup has faced environmental scrutiny, the scale of ambition is certainly undeniable. From launching tap-to-pay features on X to building one of the most powerful AI training systems on Earth, xAI is moving fast.
Steph
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 5 rounds)
Jan 2026
$20bn
SERIES E
Jul 2025
$5bn
GROWTH EQUITY VC
Total funding: $37.1bn
Company benefits
- Health and wellness: Comprehensive health insurance including medical, dental, vision, and disability coverage
- Life and family: Life and AD&D insurance and fertility benefits to ensure our team’s well-being and peace of mind
- Flexible vacation: We work hard but avoid burn out. Take time off when you need it
- Visa sponsorship: We support international talent with visa sponsorship to join our team
- 401(k) plan: Retirement savings plan to secure your financial future
Company HQ
Palo Alto, CA
Leadership
Elon Musk
(Founder)Founder, Chairman, CEO, and CTO of SpaceX. CEO and Product Architect of Tesla. Chairman and CTO of X Corp, founder of the Boring Company, co-founder of Neuralink and OpenAI, and president of the Musk Foundation.
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