Senior Staff Research Engineer - Reinforcement Learning for AI Agents

XPENG

$244K — $413K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • MS or PhD in Computer Science, AI, Machine Learning, Robotics, or related field
  • Strong background in reinforcement learning or machine learning
  • Experience implementing RL algorithms such as PPO, Actor-Critic, or policy gradient methods
  • Strong programming skills in Python with PyTorch or JAX
  • Experience building ML training systems or infrastructure

Responsibilities

  • Develop reinforcement learning methods for LLM-driven agents and decision systems
  • Optimize policies for long-horizon reasoning and planning
  • Learn from human or AI feedback (RLHF / RLAIF)
  • Build agent training pipelines on the agent infrastructure platform
  • Evaluate and benchmark agent capabilities
  • Create learning loops integrating real-world and simulation data
  • Contribute to AI systems that continuously improve post-deployment

Benefits

  • A fun, supportive and engaging environment
  • Opportunity to significantly impact the transportation revolution through autonomous driving
  • Work on cutting-edge technologies with top talent in the field
  • Competitive compensation package
  • Snacks, lunches, and fun activities
Full Job Description
We are looking for exceptional Research Engineers / Scientists to design learning systems that allow agents to plan over long horizons, learn effective strategies, and improve through experience.

This role sits at the intersection of reinforcement learning, large language models, and real-world autonomous systems. Autonomous systems must operate reliably in complex, dynamic environments. We believe the next generation of autonomy will involve learning agents that continuously improve through interaction, feedback, and large-scale data. You will help build the learning systems that power these agents.

Key Responsibilities:
  • Reinforcement learning methods for LLM-driven agents and decision systems.
  • Policy optimization for long-horizon reasoning and planning.
  • Learning from human or AI feedback (RLHF / RLAIF).
  • Agent training pipelines built on top of our agent infrastructure platform.
  • Evaluation and benchmarking systems for agent capabilities.
  • Learning loops that integrate real-world and simulation data.
  • Contribute to AI systems that continuously improve after deployment.


Basic Qualifications
  • MS or PhD in Computer Science, AI, Machine Learning, Robotics, or a related field.
  • Strong background in reinforcement learning or machine learning.
  • Experience implementing RL algorithms such as PPO, Actor-Critic, or policy gradient methods.
  • Strong programming skills in Python with PyTorch or JAX.
  • Experience building ML training systems or infrastructure.


Preferred Qualifications
  • Experience with RLHF or preference learning.
  • Experience with LLM agents or tool-using AI systems.
  • Multi-agent systems or long-horizon planning.
  • Simulation environments for RL.
  • Publications in NeurIPS, ICML, ICLR, ACL, or related venues.


What do we provide:
  • A fun, supportive and engaging environment.
  • Opportunity to make significant impact on transportation revolution by the means of advancing autonomous driving.
  • Opportunity to work on cutting edge technologies with the top talent in the field.
  • Competitive compensation package.
  • Snacks, lunches and fun activities.


The base salary range for this full-time position is $244,140 - $413,160, in addition to bonus, equity and benefits. Our salary ranges are determined by role, level, and location. The range displayed on each job posting reflects the minimum and maximum target for new hire salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

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