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Helix AI Engineer, Pretraining

HQ💼 Full-time💰 $200,000–$200,000🗓 2026-07-13 → 2026-07-31

Core

Building large-scale foundation models (text, images, video, robot data) to enable generalization, reasoning, and adaptability for embodied AI systems.

Role type

Senior IC machine-learning engineer (pretraining)

Builds

Large-scale foundation models for humanoid autonomy

Domain

Robotics + Multimodal AI

Deliverable

production ML models

Required skills

Training large-scale foundation models, deep learning architectures (transformers), distributed training optimization, Python, PyTorch, experimental rigor, scalable system design

Preferred skills

Frontier foundation model experience, multimodal pretraining, scaling laws, dataset curation, post-training techniques (RLHF, alignment), embodied AI background, publication record

Technologies

PyTorch, transformer-based architectures, multi-node GPU clusters

Responsibilities

Design and train large-scale foundation models across multimodal data; Develop pretraining strategies for generalization and transfer; Explore and implement emerging foundation model paradigms; Work on scaling laws and training dynamics; Build and optimize distributed training pipelines; Collaborate with video, generative, agent, and robot learning teams; Design evaluation frameworks for reasoning and robustness; Contribute to post-training approaches including fine-tuning and alignment

Seniority

Senior, hands-on IC

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