Multimodal LLM Architect for Generative Search & Commerce

TikTok; Singapore; On-site; SGD 78,000 - 123,000; Full time

Job summary

TikTok is seeking a Multimodal LLM Algorithm Engineer Graduate (Global E-Commerce, Knowledge Graph) to join the Global E-commerce Algorithm team in Singapore. You will work on multimodal content understanding, semantic matching, and price intelligence to power product catalog construction and cross-lingual product aggregation.

As a graduate, you will tackle bold ideas, perform data construction, model training, evaluation, deployment, and iterate on end-to-end algorithms, with opportunities to

Qualifications

• Minimum Qualifications - Bachelor's or Master's in Software Development, Computer Science, Computer Engineering, or related technical discipline.
• Strong research or practical experience in NLP, CV, generative models (e.g. Diffusion, GANs, ControlNet), multimodal learning, large models, or Agents.
• Proficiency in PyTorch / TensorFlow and hands-on experience in model training, tuning, and deployment.
• Preferred Qualifications - Experience with LLM/VLM, Embedding/SID, RAG, Tool Calling, or Agent Planning is preferred.
• Experience with distributed training, mixed precision, inference acceleration, TensorRT, or LLM serving optimization is a plus.
• Experience in multimodal retrieval, product understanding, content understanding, search/recommendation, pricing algorithms, intelligent Agents, or AIGC projects is preferred.
• Publications, open-source contributions, or strong algorithm competition records are preferred. Strong communication, ownership, and a drive to create real business impact are highly valued.

Responsibilities

• Build global product catalog and content understanding systems, modeling products, videos, images, merchants, and brands with structured and semantic representations.
• Develop algorithms for identical product matching, product/merchant/brand deduplication, and cross-lingual product aggregation, addressing multimodal matching, real-time aggregation, multi-granularity clustering, and semantic alignment.
• Build pricing algorithms for price comparison, product pricing, price monitoring, and anomaly detection, supporting subsidy programs, price competitiveness analysis, and supply optimization.
• Construct multimodal semantic links across video-product, product-product, and video-video relationships to support trend understanding, product mining, AIGC generation, and content-commerce supply optimization.
• Explore next-generation generative search and recommendation through full-format representation learning and SID modeling across videos, livestreams, products, and queries.
• Design and develop generative algorithms tailored for high engaging, high conversion e-commerce visual creatives, solving challenges in identity-preserving and aesthetic style consistency to produce production-grade intelligent background synthesis, virtual try-on, and localised lifestyle scene generation.
• Explore business-facing Agents such as price comparison Agents, product analysis Agents, content AIGC Agents, and merchant operation Agents, leveraging RAG, tool calling, planning, reasoning, and automated evaluation.
• Own the end-to-end algorithm workflow, including data construction, model training, evaluation, deployment, badcase analysis, and continuous iteration.

Skills

NLP research

CV / Computer Vision

Multimodal learning

PyTorch

TensorFlow

LLM / VLM

Education

Bachelor's or Master's in CS/Software/Engineering

Tools

PyTorch

TensorFlow

Job description

TikTok is seeking a Multimodal LLM Algorithm Engineer Graduate (Global E-Commerce, Knowledge Graph) to join the Global E-commerce Algorithm team in Singapore. You will work on multimodal content understanding, semantic matching, and price intelligence to power product catalog construction and cross-lingual product aggregation.

As a graduate, you will tackle bold ideas, perform data construction, model training, evaluation, deployment, and iterate on end-to-end algorithms, with opportunities to