AI Engineer - Pre-training Scaling, Data and Eval

Sorry, this job was removed at 04:21 p.m. (CST) on Wednesday, Aug 13, 2025
Easy Apply
Be an Early Applicant
2 Locations
In-Office
Information Technology
The Role
About xAI

xAI’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 engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

About the Role

The pre-training team at xAI aims to provide an omni model that can understand the universe through text, image, video and audio. To accomplish this, we are looking for expert engineers in multimodal pre-training.

Tech Stack
  • Python
  • JAX and XLA
  • Rust / C++
  • Spark
Location

The role is based in the Bay Area [San Francisco and Palo Alto]. Candidates are expected to be located near the Bay Area or open to relocation.

Focus

  • Training trillion parameter neural networks at scale, as well as a variety of smaller specialized models.
  • Rapidly implementing the latest state-of-the-art methods from the deep learning literature.
  • Innovating new ideas for pretraining and new scaling paradigm.
  • Improving pretraining data quality at scale across different modalities.

Ideal Experience

  • Strong engineering skills with passion to improve different aspects of data and model.
  • Expert in ML and large model scaling, familiar with all kinds of scaling laws.
  • Familiar with distributed training, multi-GPU neural network training and experience on optimizing ML training efficiency.
  • Familiar with state-of-the-art techniques for preparing AI training data.
  • Good at organizing and meticulously bookkeeping data across multiple clouds, of multiple modalities, and from many sources
Benefits

Base salary is just one part of our total rewards package at xAI, which also includes equity, comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short & long-term disability insurance, life insurance, and various other discounts and perks.

xAI is an equal opportunity employer.

California Consumer Privacy Act (CCPA) Notice

Similar Jobs

Snap Inc. Logo Snap Inc.

Lead, SMC Partner Marketing

Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
Hybrid
5 Locations
5000 Employees
121K-214K Annually

Snap Inc. Logo Snap Inc.

Electrical Engineering Lab Specialist

Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
Hybrid
Los Angeles, CA, USA
5000 Employees
76K-133K Annually

Snap Inc. Logo Snap Inc.

Senior Manager, eCommerce & Digital Marketing

Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
Hybrid
4 Locations
5000 Employees
178K-313K Annually

Snap Inc. Logo Snap Inc.

Finite Element Analysis Engineer

Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
Hybrid
2 Locations
5000 Employees
121K-214K Annually
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: San Francisco, CA
96 Employees

What We Do

Understand the Universe

Similar Companies Hiring

Axle Health Thumbnail
Logistics • Information Technology • Healthtech • Artificial Intelligence
Santa Monica, CA
19 Employees
Scrunch  Thumbnail
Artificial Intelligence • Information Technology • Marketing Tech • Software • SEO
Salt Lake City, Utah
Standard Template Labs Thumbnail
Artificial Intelligence • Information Technology • Software
New York, NY
25 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account