Machine Learning Engineer, Driving Foundation Models
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Before you apply
Salary$175k – $250k
LocationSunnyvale, United States
Typefull-time
SenioritySenior
DepartmentENGINEERING
Company size501–1,000 people
PostedOct 27, 2026 · 1w ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Proficiency in Python, C++, and Golang
Proficiency in PyTorch, JAX, Hugging Face ecosystem, vLLM
Proficiency in Kubernetes, Docker, multi-node distributed training (Megatron-LM, DeepSpeed), and cloud platforms (AWS, Azure, Google Cloud)
Strong math and theory background: Linear algebra, calculus, probability, statistics, and deep learning architectures (Transformers, diffusion models)
Experience with data curation and pretraining for large-scale datasets
Experience with distributed model training across large GPU/TPU clusters
Experience with post-training and alignment (instruction tuning, RLHF, direct preference optimization)
Experience with inference and optimization (quantization, pruning, speculative decoding)
Experience with evaluation and guardrails (benchmarking, hallucination checkers, red-teaming)
Skills
Python
C++
Golang
PyTorch
JAX
Hugging Face
vLLM
Kubernetes
Docker
Megatron-LM
DeepSpeed
AWS
Azure
Google Cloud
We are looking for the best
About Us
42dot is a mobility AI company committed to solving mobility challenges with software and AI. As the Global Software Center of Hyundai Motor Group, 42dot pioneers the future of mobility by advancing the development of software-defined vehicles.
We develop safety-first, user-centric software-defined vehicle technologies that deliver the latest performance through continuous updates like smartphones. By advancing software and AI technology, 42dot envisions a world where everything is connected and moves autonomously through a self-managing urban transportation operating system.
About the Role
Develop driving and physical AI foundation models. Support Aria VLA model development.
Responsibilities
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Data Curation & Pretraining: Design and manage massive, multi-terabyte datasets, including data scraping, filtering, deduplication, tokenization, and synthetic data generation.
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Distributed Model Training: Scale training across massive GPU/TPU clusters using parallel processing, custom data loaders, and framework optimization (PyTorch, JAX, or TensorFlow).
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Post-Training & Alignment: Implement instruction tuning, Reinforcement Learning from Human Feedback (RLHF), or direct preference optimization to align models with safety and behavior goals.
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Inference & Optimization: Compress and optimize models (quantization, pruning, speculative decoding) to run at low latency on cloud infrastructure or edge hardware like smartphones and robotics.
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Evaluation & Guardrails: Build benchmarking harnesses, hallucination checkers, and red-teaming pipelines to test model accuracy and safety.
Qualifications
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Languages: Python, C++, and Golang (for high-throughput systems).
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Frameworks: PyTorch, JAX, Hugging Face ecosystem, vLLM.
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Infrastructure: Kubernetes, Docker, multi-node distributed training (Megatron-LM, DeepSpeed), and cloud platforms (AWS, Azure, Google Cloud).
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Math & Theory: Linear algebra, calculus, probability, statistics, and deep learning architectures (Transformers, diffusion models).
Interview Process
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Application Review - Coding Test - 1st interview - 2nd interview - Offer Negotiation - Hiring
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The screening procedures may vary depending on the position, schedule, or other circumstances.
You will be individually notified of the screening schedule and results via the email address provided in your application.
Compensation
Benefits
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$175,000 - $250,000
Additional Information
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In accordance with fair hiring practices, do not include any personal information unrelated to your job qualifications (e.g., Social Security Number, family relations, marital status, age, photo, physical condition, place of birth, etc.) in your resume.
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All documents must be submitted in PDF format and under 30MB in size.
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If you experience issues uploading your resume, please send it along with the job posting URL to [email protected].
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We strongly encourage applications from U.S. veterans and candidates eligible for employment preference under applicable laws.
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Qualified individuals with disabilities are encouraged to apply and will receive consideration under the Americans with Disabilities Act (ADA).
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42dot does not accept unsolicited resumes and will not pay fees for any such submissions. Equal Opportunity Statement
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42dot is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status.
※ Please review the following information before applying.
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