Senior Interactive Vision Model Researcher

Salary: £33,000 - 73,000 per year

Requirements:

• Ph.D. in AI-related fields with first-author papers at top-tier conferences.
• Proficient in the principles and engineering implementation of diffusion models and autoregressive generation.
• Experience training video/image generation models from scratch; highly proficient in PyTorch and large-scale distributed training.
• Deep understanding of the design trade-offs in Video VAE/Tokenizers, with 3+ years of relevant research experience.
• Publications related to video generation or diffusion models.
• Experience in core industry product R&D or hands-on experience with the latest technologies is preferred.
• Experience leading end-to-end video foundation model projects is preferred.

Responsibilities:

• Design and iterate on the next-generation video generation foundation architecture.
• Explore core technologies for long video generation, including long-context attention, KV Cache compression, and memory mechanisms.
• Research high-compression-ratio video tokenizers and advance unified modeling capabilities for multi-resolution and multi-frame-rate videos.
• Lead video pre-training at large token scale, defining data mixture and curriculum learning strategies.
• Explore Scaling Laws, define scientific scale-up paths, and continuously improve key model capabilities.
• Track industry state-of-the-art, lead comparative experiments, drive technical roadmap decisions, and publish academic papers.

Technologies:

• AI
• Mobile
• PyTorch
• GameDev

More:

We are LIGHTSPEED STUDIOS, a team of passionate players advancing the art and science of game development through great stories, great gameplay, and advanced technology. Our Lightspeed Tech Center is an R&D department under Lightspeed Studios that develops PUBG Mobile and other high-quality games. We lead research, exploration, and discovery of innovative technologies and provide technical services for games across all phases of the lifecycle, including engine, audio, QA, AI, next-generation game development, and technical cooperation. This is a full-time role based in London, United Kingdom. We are an equal opportunity employer and believe diverse voices fuel our innovation and help us better serve our users and community.

last updated 36 week of 2026