Drimva

TikTok

Research Scientist, (Privacy-Preserving Large-Scale Model Training & Architecture Optimization)

San Jose, California · Full-time · Posted Oct 28, 2026

About the job

Designs and optimizes large-scale training systems and architectures for diffusion-based and unified multimodal foundation models in privacy-sensitive production environments.

What you'll do

  • Design distributed training architectures and optimize GPU performance for large-scale generative models.
  • Build fault-tolerant training systems with failure detection, recovery, checkpointing, and improved utilization.
  • Optimize diffusion and unified generation-understanding model training, collaborating on quality, efficiency, and stability tradeoffs.

What they ask for

  • Strong background in large-scale deep learning systems and distributed training.
  • Hands-on GPU optimization experience, including memory management, communication/computation overlap, and performance profiling.
  • Experience training diffusion models, DiT-style architectures, or large foundation models at scale.
  • Proficiency in PyTorch and modern distributed training stacks; solid understanding of parallelism strategies and training robustness.

Nice to have

  • Experience with privacy-preserving ML, sensitive-data training, or regulated environments.
  • Familiarity with fault-tolerant systems, production GPU orchestration, unified multimodal models, low-level performance work, or infrastructure supporting thousands of GPUs.

Tools

PyTorch, DiT, Rectified Flow, DP, TP, PP, ZeRO, FSDP

AI focus

Develop and optimize diffusion-based and unified multimodal generative foundation models, including privacy-aware training pipelines.

Model-written summary · the original posting is authoritative

First seen Oct 28, 2026 · Last verified Nov 6, 2026 (UTC)