Senior ML Runtime Engineer - Motion Planning

PlusAI, Inc.; Santa Clara (CA); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

401(k) plan

Catered free lunch

Unlimited snacks and beverages

Job summary

PlusAI, Inc. is seeking a Senior/Staff Software Engineer (Machine Learning Runtime) to design, implement, and optimize the production runtime pipeline for ML-based autonomous vehicle motion planning.

You will integrate ML models into a scalable, safety-critical planning stack and optimize end-to-end inference on compute-constrained embedded platforms. The role focuses on high-performance C++ components for feature extraction, inference, trajectory generation, and runtime orchestration, with

Qualifications

• BS, MS, or PhD in Computer Science, Robotics, Electrical Engineering, or a related field.
• 4+ years of experience developing high-performance production software.
• Strong C++ programming skills with experience building, optimizing, and maintaining large-scale software systems.
• Experience deploying machine learning inference into production environments.
• Familiarity with TensorRT, CUDA, ONNX Runtime, or similar inference acceleration frameworks.

Responsibilities

• Design, implement, and optimize the production runtime pipeline for ML-based autonomous vehicle planning.
• Integrate machine learning models into a scalable, safety-critical planning software stack.
• Optimize end-to-end inference performance through algorithm optimization, C++ implementation, profiling, memory optimization, and efficient execution on compute-constrained embedded platforms.
• Develop high-performance C++ components for feature extraction, inference, post-processing, trajectory generation, and runtime orchestration.
• Design runtime validation, safety guardrails, and fallback mechanisms to ensure generated trajectories are feasible, robust, and compliant with traffic rules.
• Investigate complex runtime issues by tracing failures across the planning pipeline, from feature extraction through inference to trajectory generation.

Skills

C++ programming

Debugging

Problem solving

Ownership mindset

Communication

Production ML inference

Education

BS/MS/PhD in Computer Science, Robotics, Electrical Engineering

Tools

TensorRT

CUDA

ONNX Runtime

PyTorch

Job description

PlusAI, Inc. is seeking a Senior/Staff Software Engineer (Machine Learning Runtime) to design, implement, and optimize the production runtime pipeline for ML-based autonomous vehicle motion planning.

You will integrate ML models into a scalable, safety-critical planning stack and optimize end-to-end inference on compute-constrained embedded platforms. The role focuses on high-performance C++ components for feature extraction, inference, trajectory generation, and runtime orchestration, with