Member of Technical Staff - RL Training Framework
xAI seeks a senior software engineer to build robust data pipelines, evaluation frameworks, and automation for large-scale RL training, working on cutting-edge AI systems. The role offers a competitive salary ($180k-$440k) plus equity and comprehensive benefits.
Responsibilities
- Create and maintain frameworks for agent, data, and model evaluation tasks.
- Build environments for AI agents.
- Develop tools for automating common workflows.
- Improve alerts, metrics, and error handling on large scale RL jobs.
- Refactor existing agent, data, eval, training frameworks for better modularity.
About 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 employees are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.
ABOUT THE ROLE
The RL infrastructure team is looking for an engineer to help develop our RL training framework.
RESPONSIBILITIES
- Design and implement the systems backing all RL workloads at xAI, from small scale ablations to production training runs.
- Profile, debug, and optimize end-to-end training performance
- Improve scalability and observability of the RL stack
BASIC
QUALIFICATIONS
- Experience building, debugging, and optimizing efficiency of large-scale distributed systems
- Comfortable diving into unfamiliar areas and solving problems at all levels of the stack
- Proficiency in Python, Jax, Rust, and/or C++
PREFERRED SKILLS AND
EXPERIENCE
- Experience with large scale LLM training infrastructure
- Strong knowledge of reinforcement learning techniques
- Experience with RL numerics
COMPENSATION AND BENEFITS
$180,000 - $440,000 USD
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. For details on data processing, view our Recruitment Privacy Notice .