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Sabrina Liu
Junior Robotics & ML Engineer specializing in robot learning and simulation
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About
Robotics engineer with a 2024 internship building an end-to-end software stack for an autonomous humanoid robot that follows natural-language audio commands to make coffee and deliver snacks, including perception (OpenCV), mapping, and ROS Navigation. Also contributing to a robotics foundation model effort by building data preprocessing pipelines using GroundingDINO and SAM2, and has multi-robot coordination experience with algorithms designed to handle real-world communication drops.
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Key Strengths
- Built integrated robotics stack for humanoid robot to execute real-world tasks (coffee-making, snack delivery)
- Hands-on ROS Navigation, mapping, and perception pipeline development (OpenCV + ROS)
- Practical calibration of perception offsets to enable reliable grasping/reaching
- Systematic real-time robotics optimization via algorithm comparison and parameter tuning under sensor latency/noise
- Designed distributed multi-robot coordination algorithms with robustness to message drops and theoretical guarantees
- Experience bridging simulation to deployment using NVIDIA Isaac Sim (script reuse)
- Robotics TA experience debugging ROS tooling and messaging issues (RViz/rostopics)
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