Principal Interactive Vision Model Researcher

About the Team

Lightspeed Tech Center is a R&D department under Lightspeed Studios, which develops PUBG Mobile and other high-quality games. Our Tech Center leads the research, exploration, and discovery of innovative technologies and provides technical services for all games during all phases of the life cycle, including engine, audio, QA, AI, next-generation game development, technical cooperation, and more.

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 the 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.

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.

Pay

The expected base pay range for this position in Los Angeles, California is $158,300.00 to $326,000.00 per year. Actual pay may vary depending on job-related knowledge, skills, and experience.

Benefits

• Eligibility for a sign-on payment, relocation package, and restricted stock units (evaluated on a case-by-case basis).
• Medical, dental, vision, life, and disability benefits.
• Participation in the Company’s 401(k) plan.
• Up to 15 to 25 days of vacation per year (depending on tenure).
• Up to 13 days of holidays throughout the calendar year.
• Up to 10 days of paid sick leave per year.

Benefits may be adjusted based on location, employment status, duration of employment, and position level. Benefits may also be pro-rated for those who start working during the calendar year.