Machine Learning Engineer, xAI
Frontier Data
$180-440k
Building artificial intelligence
Open for applications
Building artificial intelligence
1001+ employees
Open for applications
$180-440k
1001+ employees
Company mission
To build AI systems that can help humanity understand the world better.
Role
Who you are
- All engineers and researchers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates
- Expertise in ML and fine-tuning large language models
- Experience working on large-scale recommendation models or other predictive systems
- Experience in data-driven large language model behavior improvements
- Experience in developing benchmarks or large-scale distributed machine learning systems
- Experience in model optimizations under complex setups (e.g., multi-modality, multi-context, multi-agent, long-horizon tasks, diverse user preference/feedback)
What the job involves
- The post-training team at xAI transforms powerful pre-trained models to become steerable, versatile, and capable of understanding and addressing real-world challenges
- But the model is only as intelligent as the data it’s trained on, and you will be responsible for the educational diet of Grok as well as evaluating its capabilities
- You will enhance the model's instruction-following capability and general usefulness to fulfill our mission – developing AI systems that can accurately understand the universe, create new knowledge, and improve themselves through interactions. You will improve Grok’s capabilities on coding, mathematical reasoning, science, law, and many other domains
- Create and drive training data optimizations to advance model quality
- Improve data mixtures to drive model behavior improvements
- Design and implement robust model evaluations
- Build tools to benchmark, evaluate, and boost our models’ reasoning and performance
- Collaborate with pre-training, reasoning, data, multimodal, applied, product efforts to push the frontiers of model capability
- Tech Stack:
- Python
- Jax
Application process
- After submitting your application, the team reviews your CV and statement of exceptional work. If your application passes this stage, you will be invited to a 15-minute interview (“phone interview”) during which a member of our team will ask some basic questions. If you clear the initial phone interview, you will enter the main process, which consists of four technical interviews:
- Coding assessment in a language of your choice
- 2x post-training technical sessions: These sessions will be testing your ability to formulate, design and solve concrete problems in training data for post-training
- Meet the Team: Present your past exceptional work and your vision with xAI to a small audience
- Our goal is to finish the main process within one week. All interviews will be conducted via Google Meet
Our take
xAI is Elon Musk's venture into the world of artificial intelligence, and like all things Musk, it's going big. Its setting out to build AI that helps humanity understand the universe and its 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, xAI is certainly pushing towards artificial general intelligence at serious scale.
Like all bold ventures, xAI has faced its share of controversy, from questions about regulation to the overlap across Musk's businesses. But fans are still seeing the bigger picture: an interconnected tech ecosystem where AI, social media, and space exploration feed into one another.
Recently, the company made headlines 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 3 rounds)
Dec 2024
$6bn
SERIES C
May 2024
$6bn
SERIES B
Total funding: $12.1bn
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
Downtown, Burlingame, 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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