Senior Researcher, Multi-Modality

LightSpeed Studios; Singapore; On-site; SGD 180,000 - 300,000; Full time

Job summary

LIGHTSPEED STUDIOS is seeking a Senior Researcher in multimodality to shape the next generation of foundation models and agentic AI for gaming. You will lead AI research focused on in-game contexts, abstracting business problems into deployable solutions and driving breakthroughs at scale.

Collaborate with engineers to productionize research prototypes, publish at top-tier conferences, and advance multimodal understanding across images, video, text, and audio.

Qualifications

• PhD in Computer Science, ML, or a related field.
• Expertise in multimodal understanding and vision-language reasoning; pre-/post-training of LLMs/VLMs; reinforcement learning and LLM-based agents; representation learning.
• Ability to abstract research problems from real business (gaming) scenarios and drive deployment.
• Consistent first-author publications at NeurIPS, ICML, CVPR, ACL, etc.
• Strong implementation skills in modern ML frameworks (PyTorch, JAX, etc.).
• Proven ability to run complex experiments, analyze results, and iterate quickly.
• Passion for high-impact research with real-world applications.

Responsibilities

• Shape the next generation of multimodal foundation models and agentic AI within gaming scenarios.
• Focus on AI research and applications for in-game contexts—abstracting research problems from real game business scenarios, solving them, and deploying solutions that serve a wide range of gaming use cases.
• Work on multimodal understanding, post-training, and agent research, driving breakthroughs that advance both the scientific frontier and Tencent's game products at scale.
• Pioneer new research directions in multimodal understanding, post-training, reasoning, grounding, and agent planning, grounded in real gaming scenarios.
• Abstract research problems from game business scenarios, solve them, and land solutions that serve diverse in-game applications.
• Advance the understanding capabilities of multimodal large models (VLMs/MLLMs) across images, video, text, and audio.
• Lead post-training methodologies — SFT, RLHF/RLAIF, reward modeling, and preference alignment — to improve model capability and reliability.
• Design and execute experiments end-to-end: from data and benchmarking, to training, evaluation, and iteration.
• Collaborate with engineers to bring research prototypes into production and deploy them across game scenarios at scale.
• Publish at top-tier conferences and contribute to the broader research community.

Skills

Multimodal understanding

Vision-language reasoning

Reinforcement learning

LLM-based agents

Experimentation & analysis

Python (ML frameworks)

Education

PhD in Computer Science / ML or related field

Tools

PyTorch

JAX

Job description

Overview

LIGHTSPEED STUDIOS is a leading global game developer focused on bringing next generation experiences to gamers across multiple genres and devices.

Lightspeed Tech Center is an R&D department that develops PUBG Mobile and other high-quality games. The Tech Center leads 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, and technical cooperation.

Responsibilities

• We are seeking a Senior Researcher in multimodality to shape the next generation of multimodal foundation models and agentic AI within gaming scenarios.
• Focus on AI research and applications for in-game contexts—abstracting research problems from real game business scenarios, solving them, and deploying solutions that serve a wide range of gaming use cases.
• Work on multimodal understanding, post-training, and agent research, driving breakthroughs that advance both the scientific frontier and Tencent\'s game products at scale.
• Pioneer new research directions in multimodal understanding, post-training, reasoning, grounding, and agent planning, grounded in real gaming scenarios.
• Abstract research problems from game business scenarios, solve them, and land solutions that serve diverse in-game applications.
• Advance the understanding capabilities of multimodal large models (VLMs/MLLMs) across images, video, text, and audio.
• Lead post-training methodologies — SFT, RLHF/RLAIF, reward modeling, and preference alignment — to improve model capability and reliability.
• Design and execute experiments end-to-end: from data and benchmarking, to training, evaluation, and iteration.
• Collaborate with engineers to bring research prototypes into production and deploy them across game scenarios at scale.
• Publish at top-tier conferences and contribute to the broader research community.

Qualifications

• PhD in Computer Science, ML, or a related field, or equivalent research experience.
• Expertise in one or more of: multimodal understanding and vision-language reasoning; pre-/post-training of LLMs/VLMs; reinforcement learning and LLM-based agents; representation learning.
• Ability to abstract research problems from real business (ideally gaming) scenarios and drive them to deployment.
• Consistent first-author publications at leading venues (NeurIPS, ICML, CVPR, ACL, etc.).
• Strong implementation skills in modern ML frameworks (PyTorch, JAX, etc.).
• Proven ability to run complex experiments, analyze results, and iterate quickly.
• Passion for high-impact research with real-world applications.

Equal Employment Opportunity

As an equal opportunity employer, we firmly believe that diverse voices fuel our innovation and allow us to better serve our users and the community. We foster an environment where every employee feels supported and inspired to achieve individual and common goals.

About LIGHTSPEED STUDIOS

LIGHTSPEED STUDIOS is a leading global game developer, with teams across China, United States, Singapore, Canada, United Kingdom, France, Japan, South Korea, New Zealand and United Arab Emirates. It has created over 50 games across multiple platforms and genres for more than 4 billion registered users. It is the co-developer of the worldwide hit PUBG MOBILE (co-developed with KRAFTON, Inc.).