Senior Research Engineer Interactive Avatars

Welcome to the video first world

From your everyday PowerPoint presentations to Hollywood movies AI will transform the way we create and consume content.

Today people want to watch and listen not read both at home and at work. If youre reading this and nodding check out our brand video.

Despite the clear preference for video communication and knowledge sharing in the business environment are still dominated by text largely because high-quality video production remains complex and challenging to scaleuntil now.

Meet Synthesia

Were on a mission to make video easy for everyone. Born in an AI lab our AI video communications platform simplifies the entire video production process making it easy for everyone regardless of skill level to create collaborate and share high-quality videos. Whether its for delivering essential training to employees and customers or marketing products and services Synthesia enables large organizations to communicate and share knowledge through video quickly and efficiently. Were trusted by leading brands such as Heineken Zoom Xerox McDonalds and more. Read stories from happy customers and what 1200 people say on G2.

In February 2024 G2 named us as the fastest growing company in the world. Today were at a $2.1bn valuation and we recently raised our Series D. This brings our total funding to over $330M from top-tier investors including Accel Nvidia Kleiner Perkins Google and top founders and operators including Stripe Datadog Miro Webflow and Facebook.

What youll do at Synthesia:

As a Research Engineer you will join a team of 40 Researchers and Engineers within the R&D Department working on cutting edge challenges in the Generative AI space with a focus on avatar-centric interactive video diffusion models. Within the team youll have the opportunity to work on the applied side of our research efforts and directly impact our solutions that are used worldwide by over 60000 businesses.

This is a unique opportunity for experts in machine learning and diffusion models to shape the future of AI video agents that can think act and react like humans. As part of our Interactive Avatars Team youll work on cutting-edge research with a clear focus on turning breakthrough ideas into real product capabilities. Youll join a team that moves fast iterates often and builds models that ship and make a meaningful impact. Example tasks and responsibilities include:

• 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.
• Collaborate closely with our data team to define data needs and ensure high-quality datasets.
• Stay up to date with research in world models interactive human/agent modeling diffusion models and related areas.

What were looking for:

• Comfortable owning and executing on the responsibilities listed above.
• 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.
• Outcome-driven detail-oriented and motivated to push state-of-the-art research into real product impact.
• Clear communicator of hypotheses experiments and results.

• Experience with audio-conditioned video diffusion models and deep knowledge of recent video DiT architectures.
• Demonstrated ability to own the full model development pipeline end to end from data preparation to model design training and evaluation.
• A strong publication record in areas such as world models interactive agents or video diffusion models.

Why join us

Were living the golden age of AI. The next decade will yield the next iconic companies and we dare to say we have what it takes to become one. Heres why

Our culture

At Synthesia were passionate about building not talking planning or politicising. We strive to hire the smartest kindest and most unrelenting people and let them do their best work without distractions. Our work principles serve as our charter for how we make decisions give feedback and structure our work to empower everyone to go as fast as possible.You can find out more about these principles here.

Serving 50000 customers (and 50% of the Fortune 500)

Were trusted by leading brands such as Heineken Zoom Xerox McDonalds and more. Readstories from happy customersand what1200 people say on G2.

Proprietary AI technology

Since 2017 weve been pioneering advancements in Generative AI. Our AI technology is built in-house by a team of world-class AI researchers and engineers. Learn more aboutour AI Research Lab and the team behind.

AI Safety Ethics and Security

AI safety ethics and security are fundamental to our mission. While the full scope of Artificial Intelligences impact on our society is still unfolding our position is clear:People first. Always. Learn more aboutour commitments to AI Ethics Safety & Security.

The good stuff...

• Competitive compensation (salary stock options bonus)
• Hybrid work setting with an office in London Amsterdam 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

You can see more about Who we are and How we work here: Experience:

Senior IC