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Senior AI Researcher - Pre-training (f/m/d)

Heidelberg💼 Full-time🗓 2026-04-22 → 2026-07-31

Core

Designing and optimizing large-scale foundation model pre-training architectures and training recipes for high-stakes European applications.

Role type

Senior AI Researcher (Pre-training)

Builds

Next-generation foundation models for finance, manufacturing, and public administration

Domain

AI/ML, Foundation Models, Large-Scale Distributed Training

Deliverable

production ML models

Required skills

Python, PyTorch, Transformer training dynamics, Distributed training debugging, Mathematical reasoning, Experiment design, Software engineering, Model architecture design, Training stability analysis, Scaling strategy

Preferred skills

LLM/Multimodal model training, Distributed training frameworks (torchtitan, Megatron-LM, DeepSpeed), Scaling laws, Sparse training (MoE), Top-tier conference publications

Technologies

PyTorch, NVIDIA Blackwell GPUs, torchtitan, Megatron-LM, DeepSpeed

Responsibilities

Optimize training recipes (optimizers, learning rates, regularization), Develop scaling strategies and hyperparameter transfer methods, Design and evaluate model architectures, Diagnose convergence and stability issues, Collaborate on system-model co-design, Debug large-scale distributed training failures

Seniority

Senior, hands-on IC

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