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Staff Research Engineer - Multimodal Generative Modelling

Synthesia is the world’s leading AI video platform for business, used by over 90% of the Fortune 100. Founded in 2017, the company is headquartered in London, with offices and teams across Europe and the US. As AI continues to shape the way

Company

Synthesia

Location

Europe

Status

Open

Posted

2026-07-17T14:38:23.387+00:00

Synthesia is hiring a staff research engineer for its Voice team, part of a 40-plus-person R&D group, to build multimodal generative models that combine text, audio and video. The work covers roadmap definition, novel architecture proposals, pretraining through post-training (DPO, fine-tuning, distillation), evaluation metrics for latency-aware conversation, dataset curation and shipping optimised models to production. The posting asks for hands-on LLM or transformer experience, distributed PyTorch, time-series modelling and tokenisation in audio or video, and fast prototyping. Scope spans voice, video and product.