AI Engineer and Researcher - xAI Ads

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

About the role

We’re looking for exceptional AI engineers who want to join us on a new project to integrate Grok into all parts of our X Ads Platform. We’re looking for individuals who have built exceptional advertising products and systems at massive scale across bidding, auction, marketplace, ranking, prediction, and product. We’re bringing xAI’s technology stack to X and using it to transform our advertising stack.

What You'll Do

• Leverage the latest Grok models to power all stages of our advertising stack, from candidate selection to ranking, auction, campaign optimization, creative generation and advertiser experience.


• Own and operate systems and products driving the majority of X’s revenue.

Who You Are

• 3+ years of industry experience working on large-scale, high-throughput AI powered advertising products.

Tech Stack

• Python, Jax, Rust

Locations

• We hire engineers in Palo Alto. Our team usually works from the office 5 days a week but allow work-from-home days when required.

Interview 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 2 technical interviews and 1 project deep-dive interview:

1. Practical coding assessment in a language of your choice.


2. Systems design hands-on: Demonstrate practical skills in a live problem-solving session.


3. Project deep-dive: Present and answer questions about exceptional work that you’ve done.


4. Meet and greet with the wider team.

Our goal is to finish the main process within one week. Final interviews will be conducted in person.

Annual Salary Range

$180,000 - $440,000 USD

xAI is an equal opportunity employer and does not unlawfully discriminate based on race, color, religion, ethnicity, ancestry, national origin, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender, gender identity, gender expression, age, disability, medical conditions, genetic information, marital status, military or veteran status, or any other applicable legally protected characteristics.

Qualified applicants with arrest or conviction records will be considered for employment in accordance with all applicable federal, state, and local laws, including the San Francisco Fair Chance Ordinance, Los Angeles County Fair Chance Ordinance for Employers, and the California Fair Chance Act.

For Los Angeles County (unincorporated) Candidates:

xAI reasonably believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of a conditional offer of employment:

• Access to information technology systems and confidential information, including proprietary and trade secret information, and/or user data;


• Interacting with internal and/or external clients and colleagues; and


• Exercising sound judgment.