Software Engineer - Map Fusion & Planning

DiDi Labs

$129K — $214K *
Transportation
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • B.S./M.S. or Ph.D. in Computer Science, Robotics, Electrical Engineering, or related field.
  • 3+ years for software engineer or 5+ years for senior software engineer in autonomous driving, robotics architecture, or spatial computing.
  • Expert proficiency in production-grade C++ (Modern C++14/17/20) and strong prototyping skills in Python.
  • Strong knowledge of path planning algorithms (e.g., A*, RRT*) and kinematic/dynamic vehicle models.
  • Deep understanding of robotics fundamentals such as coordinate transformations and spatial geometry.
  • Proficient in system design and middleware (e.g., ROS2, DDS).

Responsibilities

  • Architect data flow pipelines and APIs for map fusion and motion planning.
  • Design and deploy software that integrates HD maps with real-time perception data.
  • Implement and optimize advanced BEV networks for map generation.
  • Design and validate motion planning algorithms ensuring efficiency between path generation and optimization.
  • Manage the deployment pipeline for deep learning models from training to execution in C++.
  • Develop real-time algorithms for map anomaly detection and reliability enhancement.
  • Optimize system latency and memory usage for safety-critical C++ modules.

Benefits

  • Comprehensive health, dental, and vision insurance.
  • 401(k) retirement plan with company match.
  • Flexible working hours and remote work options.
  • Generous paid time off and holiday schedule.
  • Opportunities for professional development and continuous learning.
Full Job Description
About the Role

We are seeking a Software Engineer / Senior Software Engineer to develop the next-generation map fusion and motion planning systems for our autonomous vehicles. In this role, you will bridge the gap between semantic HD maps, real-time sensor perception, and vehicle trajectory generation. You will design scalable software infrastructure, implement advanced geometric and deep learning frameworks, and develop the planning algorithms that enable our vehicles to navigate complex, dynamic environments safely and predictably.

Responsibilities
  • System Architecture: Architect the data flow pipelines and APIs for map fusion, real-time map vectorization, and behavior/motion planning modules.
  • Algorithm Deployment: Design and deploy robust software frameworks that integrate offline High-Definition (HD) maps with online perception data to create a unified local environment model.
  • Advanced Mapping Networks: Implement and optimize state-of-the-art networks utilizing DETR-style, query-based vector decoding in bird's-eye-view (BEV) for online map element generation.
  • Motion Planning & Optimization: Design, implement, and validate core motion planning algorithms, establishing a tight feedback loop between vectorized map features, path generation, and trajectory optimization.
  • Model Deployment Pipelines: Own the end-to-end deployment pipeline for deep learning mapping models-from Python-based training and ONNX optimization to highly efficient runtime execution in C++.
  • Safety & Anomaly Detection: Develop real-time map anomaly and scene-change detection algorithms to ensure planning system reliability under varying or outdated map conditions.
  • Performance Optimization: Optimize system latency, CPU/GPU memory footprint, and multi-threaded execution of safety-critical C++ modules.


Qualifications
  • Education: B.S./M.S. or Ph.D. in Computer Science, Robotics, Electrical Engineering, or a related field.
  • Experience: 3+ years (Software Engineer) / 5+ years (Senior Software Engineer) of experience in autonomous driving, robotics architecture, or spatial computing.
  • Software Mastery: Expert proficiency in production-grade C++ (Modern C++14/17/20, multi-threading, memory management) and strong prototyping proficiency in Python.
  • Motion Planning Fundamentals: Robust foundational knowledge in path planning (e.g., A*, Dijkstra, Hybrid A*, sampling-based planners like RRT*) and kinematic/dynamic vehicle models.
  • Robotics Core: Deep understanding of robotics fundamentals, including coordinate transformations, spatial geometry, and state estimation.
  • System Design: Strong system design skills with a solid understanding of middleware (e.g., ROS2, DDS) and distributed software architectures.


Preferred Qualifications
  • Trajectory Optimization: Hands-on experience with numerical trajectory optimization methods (e.g., MPC, QP/Nonlinear optimization, interior-point methods) and optimization solvers (e.g., OSQP, Ipopt, Ceres Solver).
  • Advanced Mapping Experience: Hands-on experience working with HD map formats (Lanelet2, OpenDRIVE) and modern end-to-end learning frameworks (e.g., MapTR, VectorNet) that leverage query-based BEV perception.
  • Deep Learning Runtime & Deployment: Proven track record of exporting complex deep learning architectures via ONNX and deploying them into real-time C++ production environments using TensorRT.
  • Anomaly Detection: Proven track record of developing algorithms for map anomaly detection, sensor-to-map misalignments, or online scene-change identification.
  • Safety-Critical Systems: Knowledge of real-time operating systems (RTOS), deterministic software execution, and safety-critical software design principles.

The base salary range for this full-time position is $129,189-$214,776 annually in addition to bonus, equity and benefits. Our salary ranges are determined by role, level, and location. Within the range, individual pay is determined by work location and additional factors, including job-related skills, experience, and relevant education or training.

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