AI Researcher, Video Diffusion
Company: Amadeus Search
Location: San Francisco
Posted on: April 3, 2026
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Job Description:
Applied AI Researcher – Video Diffusion Location: On-site, San
Francisco, CA Compensation: $160,000 – $300,000 Equity (0.5%–2%)
Employment Type: Full-time About the Role An early-stage AI startup
in San Francisco is building the next generation of video
foundation models for human motion and expression. They're seeking
an Applied AI Researcher to help lead the training of
state-of-the-art video diffusion models from scratch—working
directly with massive visual datasets and 100s of GPUs. This is a
high-ownership role at a company that trains its own models (not
just fine-tunes others) and is backed by well-known investors and
founders from top-tier companies in AI, video, and infrastructure.
What You’ll Do Train large-scale diffusion and transformer-based
models for video generation Curate, clean, and label internet-scale
video datasets Run targeted experiments and rapidly iterate on
model improvements Distill models for faster inference with minimal
performance loss Stay current with arXiv and GenAI research; help
shape the model roadmap Build LoRA modules to expand model
capability Requirements 2 years building ML models from scratch in
Python and PyTorch Deep experience with vision transformers,
diffusion models, or related architectures Comfortable working on
Linux clusters with GPU workloads Experience with labeling tools
(e.g., face detection, speaker recognition) Strong research
mindset—PhD or top-tier publications a plus Familiarity with video
compression, codecs, and perceptual metrics You Might Be a Fit If…
You're hands-on with training generative video models You thrive in
early-stage environments and want full-stack research-to-deployment
impact You obsess over both clean data and novel architecture
design You're active in AI research circles and keep up with the
latest GenAI trends
Keywords: Amadeus Search, San Mateo , AI Researcher, Video Diffusion, IT / Software / Systems , San Francisco, California
