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DiDi Global

Ride-hailing + delivery mobility platform

Senior/Senior Staff AI Infrastructure Engineer - Inference & Optimization

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeSan Jose, CA, USAIn-person

About the Job

Requirements

  • A master's degree or higher in Computer Science, Software Engineering, Systems Engineering, or a closely related technical field.
  • 3–8+ years of industry experience in high-performance computing, AI infrastructure, model optimization, or embedded deployment.
  • Strong proficiency in C++ and Python, with solid expertise in parallel programming using CUDA and OpenMP and low-level system profiling tools.
  • Deep familiarity with mainstream inference engines such as TensorRT and ONNX Runtime and specialized large language model inference and serving frameworks such as vLLM, SGLang, and TensorRT-LLM.
  • Practical understanding of modern GPU hardware architectures such as NVIDIA Hopper and Thor, and memory bandwidth management.
  • Ability to diagnose complex software-hardware integration issues and drive scalable, production-grade solutions.

Responsibilities

  • Own the deployment, optimization, and resource scheduling of vehicle-side AI models, ensuring high efficiency, low latency, and robust execution within embedded constraints.
  • Lead vehicle-side system stability initiatives, conducting independent root-cause analysis and driving resolution for complex system-level performance bottlenecks and runtime anomalies.
  • Architect and scale service-oriented deployment environments for large language models and foundational models to support offline simulation, automated annotation, and rapid model validation.
  • Track and evaluate cutting-edge industry methodologies, continuously integrating advanced optimization toolchains, quantization techniques, and execution engines.
  • Establish system-level profiling and telemetry frameworks using CUDA tools to monitor, analyze, and maximize hardware utilization across target GPU architectures.
  • Collaborate cross-functionally with Autonomous Driving Perception/Prediction, Cloud Infrastructure, and Safety teams to enable rapid algorithm iteration and scalable vehicle deployment.

Desired Qualifications

  • Hands-on experience optimizing and deploying AI models on the NVIDIA Thor platform, including hardware resource scheduling and acceleration.
  • Proven track record of serving large foundation models such as LLaMA, Qwen, and GPT in production or high-throughput cloud pipelines using frameworks such as vLLM, SGLang, TGI, or LightLLM.
  • Background in deep learning training frameworks such as PyTorch and practical experience with model quantization (INT8/FP8/AWQ), kernel fusion, or graph compilation.
  • Experience deploying real-time, high-availability AI workloads in autonomous vehicles, robotics, or edge devices.

About the Company

DiDi Global

Ride-hailing + delivery mobility platform

DiDi Global operates a mobility technology platform that connects riders with drivers for private car rides, taxis, and carpooling, and also offers bike-sharing, food and grocery delivery, logistics, and automotive services for drivers. The app matches a user’s ride or delivery request with available partners and processes payments within the platform, while also offering financing, leasing, and maintenance for drivers in some regions, and financial products like loans or insurance in certain markets. It differentiates itself by offering a wide range of mobility, delivery, logistics, and financial services all in one ecosystem, plus a large international footprint and support for driver-partners. Its goal is to be a one-stop app that handles rides, deliveries, freight, and financial services end to end.

Company size
10,001+
Company stage
IPO
Headquarters
Dongcheng District, China
Founded
2012

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