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42dot

Unified platform for multi-modal urban mobility

Machine Learning Engineer - Driving Foundation Models

Natural Language Processing & LLMsConfirmed live in the last 24 hours
Full-time$175k - $250kIn-person

About the Job

Requirements

  • Proficiency in Python, C++, and Golang for high-throughput systems.
  • Experience with PyTorch, JAX, the Hugging Face ecosystem, and vLLM.
  • Experience with Kubernetes, Docker, multi-node distributed training using Megatron-LM or DeepSpeed, and cloud platforms including AWS, Azure, or Google Cloud.
  • Knowledge of linear algebra, calculus, probability, statistics, and deep learning architectures including Transformers and diffusion models.

Responsibilities

  • Design and manage massive, multi-terabyte datasets, including data scraping, filtering, deduplication, tokenization, and synthetic data generation.
  • Scale training across GPU/TPU clusters using parallel processing, custom data loaders, and framework optimization.
  • Implement instruction tuning, Reinforcement Learning from Human Feedback, or direct preference optimization to align models with safety and behavior goals.
  • Compress and optimize models using quantization, pruning, and speculative decoding for low-latency operation on cloud infrastructure or edge hardware such as smartphones and robotics.
  • Build benchmarking harnesses, hallucination checkers, and red-teaming pipelines to test model accuracy and safety.
  • Develop driving and physical AI foundation models and support Aria VLA model development.

About the Company

42dot

Unified platform for multi-modal urban mobility

42dot.ai provides a platform called UMOS (Urban Mobility Operating System) that connects and manages multiple transportation modes—such as cars and drones—within a single system for cities, agencies, and private clients. UMOS enables efficient transportation management, demand-response services, and smart logistics by integrating data and operations across modes, powering operations through a subscription-based platform-as-a-service model. Unlike single-mode solutions, 42dot.ai offers multi-modal, city-focused orchestration that bridges public, private, and logistics needs. The company aims to transform urban mobility by helping cities run more efficiently, cut costs, and improve the experience for commuters and logistics providers.

Company size
501-1,000
Company stage
Growth Equity (Venture Capital)
Total funding
$731.9M
Headquarters
Seoul, South Korea
Founded
2019

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