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Staff Research Scientist- Interactive Avatars

Synthesia· Research and Development
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RemoteFull-timePosted 2w ago

About the role

Staff Research Scientist in Interactive Avatars focused on building and advancing dyadic interaction models, perceptual understanding, and diffusion-based avatar/video generation within a fast-moving R&D team.

Responsibilities

  • Set the research direction and roadmap for dyadic interaction modeling, balancing long-term bets with near-term product impact.
  • Advance the state of the art in the perceptual layer of interactive agents, including understanding user audio and video and generating contextually appropriate reactions.
  • Post-train multimodal models to generate rich, natural dyadic interactions from user audio and video inputs.
  • Adapt diffusion models to new conditioning signals, such as conversational state, turn-taking, and listener cues.
  • Build robust evaluation frameworks and test suites for continuous tracking of interaction quality.
  • Partner with our data team to define data needs and shape high-quality datasets.
  • Lead and mentor a small group of researchers, and drive technical decisions across research, data, and engineering.

Qualifications

  • Deep ML expertise and extensive hands-on experience with diffusion models, ideally for video or avatar generation.
  • A strong publication record at top-tier venues (e.g., CVPR, ICCV, ECCV, NeurIPS, ICML, ICLR, SIGGRAPH) in areas such as world models, dyadic interaction, or video diffusion, or equivalent demonstrated impact.
  • Experience leading a small team of researchers and mentoring junior members.
  • A track record of taking research from idea to production.
  • Proficiency in PyTorch and modern ML tooling for large-scale training.
  • Clear communication of hypotheses, experiments, and results, and the ability to influence direction across teams.

Skills

Required:Diffusion models for video/avatar generationPyTorchDyadic interaction modelingLeadership / mentorship
Nice to have:Evaluation frameworks for ML systems

Benefits

  • Competitive compensation
  • Hybrid work setting with an office in London, Zurich, Munich, or remote in Europe
  • 25 days of annual leave + public holidays
  • Great company culture with the option to join regular planning and socials at our hubs
  • + other benefits depending on your location
Last updated Oct 7, 2026. Interested? Apply on the company site.

About Synthesia

#1 AI Video Platform for Business

Synthesia is a #1 AI Video Platform for Business. Our AI Video Generator enables anyone to create professional videos without mics, cameras, actors, or studios. Using AI, we’re radically changing the process of video content creation, making it scalable and affordable while maintaining high quality.

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