Staff Research Engineer - Interactive Avatars

Synthesia
London
Workplace: HybridFull timeFunction: Research & Scientific (R&D)Skills: ["Python","PyTorch","Diffusion models","Video diffusion","GANs","VAEs","Computer vision","Git","Version control"]

Senior Research Engineer in the Interactive Avatars team focusing on avatar-centric video diffusion models. You will advance diffusion-based AI video agents, work with PyTorch and Python, collaborate with a 40+ person R&D team, and ship research-driven features used by tens of thousands of businesses worldwide.

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Synthesia
Synthesia
7 months ago

Staff Research Engineer - Interactive Avatars

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Last checked: 6 hours agoStatus: Live

Job Summary

Senior Research Engineer in the Interactive Avatars team focusing on avatar-centric video diffusion models. You will advance diffusion-based AI video agents, work with PyTorch and Python, collaborate with a 40+ person R&D team, and ship research-driven features used by tens of thousands of businesses worldwide.
Location: London
Workplace: Hybrid
Employment Type: Full time
Job Function: Research & Scientific (R&D)
Seniority: Sr. Manager level

Key Responsibilities

  • •Adapt diffusion models to incorporate diverse conditioning signals (e.g., audio, motion, interaction cues).
  • •Develop methods for streaming infinitely long video sequences at real-time rates.
  • •Work on the perceptual layer of interactive agents, including understanding user audio and generating appropriate contextual reactions.
  • •Improve lip-sync accuracy, motion realism, and overall visual quality in video diffusion models.
  • •Build robust evaluation frameworks and test suites to enable continuous quality tracking.

Pay and Benefits

Perks:Hybrid Work

Key Requirements

  • •Strong ML (e.g., diffusion, GANs, VAEs) and computer vision background with relevant industry experience.
  • •Hands-on experience with diffusion models (ideally avatar-centric or video-focused) and up to date with recent advances.
  • •Proficient in PyTorch and familiar with modern ML frameworks and tooling.
  • •Strong Python engineering skills, confident with git and version control, and a commitment to clean, maintainable research code.
  • •Clear communicator of hypotheses, experiments, and results.
Experience:AIGenerative AIVideo Diffusion
Skills:PythonPyTorchDiffusion modelsVideo diffusionGANsVAEsComputer visionGitVersion control
Tech Stack:PythonPyTorchDiffusion modelsGANsVAEsVideo diffusionGit

Company Brief

Synthesia
Provides an AI video generation platform that creates realistic synthetic presenters and video content from text, enabling enterprises to produce scalable training, marketing, and communications videos without cameras or actors.
Industry: AI & Machine Learning
Company Size: Large (251 to 1,000 employees)
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series C
Headquarters: London, United Kingdom
Founded: 2017
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