Staff Machine Learning Engineer on Merchant team at Pinterest. Leading ML initiatives to enhance merchant quality and improve user shopping experiences.
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Senior Machine Learning Engineer – Learned Planning, Reinforcement Learning
Posted 3 months ago
About the role
- Senior Machine Learning Engineer developing and deploying machine learning models for autonomous trucks. Collaborating with various teams to enhance safe and efficient decision-making in freight environments.
Responsibilities
- Design, develop, and deploy learned behavior models using approaches such as reinforcement learning, behavior cloning, and imitation learning
- Own end-to-end model development for scoped problem areas, from data ingestion and training to evaluation and deployment
- Write production-quality ML code to support scalable training, evaluation, and inference workflows
- Analyze model performance, identify failure modes, and iterate to improve robustness and generalization across driving scenarios
- Contribute to training pipelines, data workflows, and infrastructure, including working with large-scale datasets from simulation, fleet logs, and on-vehicle data
- Collaborate with simulation, validation, and autonomy teams to test and evaluate learned behavior models across diverse environments
- Support integration of learned planning models into simulation and validation frameworks, enabling faster iteration and improved coverage
- Contribute to model architecture discussions and technical decision-making within the team
- Mentor junior engineers on implementation, experimentation, and best practices
Requirements
- Bachelor’s degree in Computer Science, Robotics, Electrical Engineering, Machine Learning, or related technical field with 6+ years of industry experience, OR Master’s degree with 3+ years OR PhD with 1+ years of experience
- Experience applying reinforcement learning, imitation learning, or sequence modeling to robotics, autonomous systems, or complex control problems
- Strong programming skills in Python and PyTorch, with experience writing production-quality ML code
- Experience training, evaluating, and improving models using large-scale datasets and distributed compute environments
- Solid understanding of ML architectures used in autonomy systems (e.g., transformers, RNNs, graph neural networks, policy networks)
- Experience debugging model behavior, analyzing performance metrics, and improving model reliability
- Ability to translate ambiguous problems into structured ML solutions and deliver results independently
- Experience collaborating cross-functionally to integrate ML models into larger autonomy systems
Benefits
- A competitive compensation package that includes a bonus component and stock options
- 100% paid medical, dental, and vision premiums for full-time employees
- 401K plan with a 6% employer match
- Flexibility in schedule and generous paid vacation (available immediately after start date)
- Company-wide holiday office closures
- AD+D and Life Insurance
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