Algorithm Engineer - TikTok E-Commerce (Conversational AI)

TikTok
Singapore
Workplace: OnsiteFull timeFunction: Data Science & Machine LearningEducation: bachelorsSkills: []

Build and optimize an AI-driven conversational customer service system for TikTok’s global e-commerce platform. You’ll design models that handle inquiries, disputes, refunds, and seller operations, apply state-of-the-art LLM post-training (including RLHF and continual learning), construct training datasets, and enable multilingual support. The role also focuses on evaluation metrics, reducing hallucinations, and deploying efficient, low-latency models at scale with model compression and quantization.

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FursaFursa
TikTok
TikTok
1 month ago

Algorithm Engineer - TikTok E-Commerce (Conversational AI)

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Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 18 hours agoStatus: Live

Job Summary

Build and optimize an AI-driven conversational customer service system for TikTok’s global e-commerce platform. You’ll design models that handle inquiries, disputes, refunds, and seller operations, apply state-of-the-art LLM post-training (including RLHF and continual learning), construct training datasets, and enable multilingual support. The role also focuses on evaluation metrics, reducing hallucinations, and deploying efficient, low-latency models at scale with model compression and quantization.
Location: Singapore
Workplace: Onsite
Employment Type: Full time
Job Function: Data Science & Machine Learning

Key Responsibilities

  • •Develop and optimize AI customer support systems for high-volume e-commerce inquiries with accurate, reliable responses.
  • •Enhance LLM-based customer interaction models using post-training to reduce errors, hallucinations, and irrelevant outputs.
  • •Build automated dispute resolution and policy-adaptive AI that verifies transaction details and supports platform compliance.
  • •Develop multilingual support and translation models for real-time cross-language customer service interactions.
  • •Define response evaluation metrics and run A/B testing to improve conversational AI quality; enable AI-seller collaboration.

Key Requirements

  • •Bachelor’s degree or above in computer science, computer engineering, statistics, applied mathematics, data science, or a related field.
  • •Experience fine-tuning, distillation, or reinforcement learning of large language models for conversational AI.
  • •Proficiency in multilingual NLP, machine translation, and cross-lingual dialogue modeling.
Education:Bachelor's in computer science, computer engineering, statistics, applied mathematics, data science or other related disciplines
Tech Stack:Large Language Models (LLMs)NLPInstruction tuningReinforcement learning from human feedback (RLHF)Continual learningMultilingual NLPMachine translationCross-lingual dialogue modelingRetrieval augmented generationMixture of expertsSparse attentionQuantizationModel compressionDistributed model trainingLow-latency inferenceEdge AIA/B testing

Company Brief

TikTok
Short-form video platform that lets users create, share, and discover entertainment content through algorithmic recommendations. It also offers advertising and creator tools for brands, influencers, and businesses.
Industry: Digital Media
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Headquarters: Singapore, Singapore
Founded: 2016
WebsiteLinkedIn