Senior Research Scientist, Interactive Avatars

Jobgether SRL; España; Remote; EUR 150,000 - 190,000; Full time

Benefits offered by this job

Fully remote within Europe

Hybrid opportunities near London/Munih

25 days leave

Collaborative AI research environment

Mentorship opportunities

Job summary

Lever, Inc. is seeking a Staff Research Scientist – Interactive Avatars based in Spain. This senior role focuses on generative AI to build avatar-based video agents, combining research, engineering, and data expertise.

You will lead the research direction, mentor researchers, and drive production-ready capabilities across teams. You will develop multimodal models that understand audio and video inputs and respond with natural conversational behavior, integrating diffusion models with

Qualifications

• Deep expertise in machine learning with diffusion models, ideally applied to video/avatar generation.
• Strong research track record with publications at CVPR, ICCV, ECCV, NeurIPS, ICML, ICLR, or SIGGRAPH.
• Expertise in video diffusion, world models, dyadic interaction modeling, multimodal generation.
• Proven experience leading a small team of researchers and mentoring junior talent.
• Ability to take research concepts from idea to production systems.
• Strong proficiency in PyTorch and modern ML tooling for large-scale training.
• Solid understanding of multimodal learning and large-scale ML experimentation.
• Excellent analytical and problem-solving abilities.
• Clear communication to influence direction across teams.

Responsibilities

• Define the research direction and roadmap for dyadic interaction modeling.
• Advance perceptual capabilities of interactive AI agents (audio/video understanding).
• Develop post-trained multimodal models for rich, natural dyadic interactions.
• Adapt diffusion models to include dialogue state, turn-taking, listener cues.
• Research models generating natural conversational behaviors (gaze, expressions, backchannels).
• Design evaluation frameworks, benchmarks, and automated tests for interaction quality.
• Collaborate with data specialists to define data requirements and datasets.
• Lead technical decisions spanning research, data, and engineering.
• Lead and mentor a small team of researchers and foster high-performing culture.
• Drive projects from hypothesis to production impact.
• Communicate hypotheses, methods, results, and recommendations clearly.

Skills

Diffusion models

Video generation

Multimodal learning

Leadership

Experimentation

Communication

Research direction

PyTorch

Productionization

Tools

PyTorch

Job description

Lever, Inc. is seeking a Staff Research Scientist – Interactive Avatars based in Spain. This senior role focuses on generative AI to build avatar-based video agents, combining research, engineering, and data expertise.

You will lead the research direction, mentor researchers, and drive production-ready capabilities across teams. You will develop multimodal models that understand audio and video inputs and respond with natural conversational behavior, integrating diffusion models with