Member of Technical Staff Pretraining

Frontier AI research lab building the FLUX family of multimodal visual-intelligence models and delivering them through an API, playground, and open weights.

Freiburg im Breisgau, Germany
About Black Forest Labs

Black Forest Labs develops generative AI models for image, video, audio, and action prediction, alongside production API and enterprise deployment offerings.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will lead large-scale pretraining experiments for image, video, and audio foundation models. You will develop and evaluate architecture, optimizer, and training-algorithm ideas; contribute GPU and systems optimizations and research code; and independently lead research projects and cross-team initiatives.

Requirements

  • Experience leading or co-owning foundation-model pretraining through production or a major release
  • Experience with architecture, objective, attention, modulation, loss, and tokenization design
  • Experience with large-scale distributed training on multi-node GPU clusters
  • Python and PyTorch proficiency
  • Familiarity with visual generative models
  • Production impact or top-venue research publications

Responsibilities

  • Lead large-scale multimodal foundation-model pretraining experiments
  • Develop and evaluate architectures, optimizers, and training algorithms
  • Contribute GPU and systems optimizations, research code, and model design
  • Lead independent research projects and cross-team initiatives

Benefits

  • Equity
  • Reasonable travel costs covered
Member of Technical Staff Pretraining at Black Forest Labs | JobStash