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PlusAI

Robot type
Autonomous Vehicle
Location
Santa ClaraCaliforniaUSA
Job type
Artificial Intelligence
Posted
Aug 27, 2026
Salary
$130,000–$220,000 a year
Full-time

Senior/Staff Software Engineer (Machine Learning Runtime), Motion Planning

Job description

PlusAI — Senior/Staff Software Engineer (Machine Learning Runtime), Motion Planning (Santa Clara, California).

Job 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.
  • Debug difficult edge-case scenarios using logs, profiling tools, visualization, offline replay, and quantitative analysis to identify root causes and implement robust solutions.
  • Build tooling and infrastructure to improve debugging, observability, performance analysis, testing, and runtime monitoring.

Job requirements

  • 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 optimizing real-time systems, including latency, throughput, memory usage, and multithreaded performance.
  • Experience deploying machine learning inference into production environments.
  • Familiarity with TensorRT, CUDA, ONNX Runtime, or similar inference acceleration frameworks.
  • Strong software engineering fundamentals, including software architecture, testing, and code quality.
  • Excellent debugging and analytical problem-solving skills, with the ability to systematically investigate complex software and system-level issues.

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