Senior Algorithm Engineer, TikTok E-Commerce (Conversational AI)

TikTok
Seattle
Workplace: OnsiteFull timeFunction: Data Science & Machine LearningExperience: 5+ yearsEducation: bachelorsSkills: []

Build and optimize AI-powered conversational customer service for TikTok’s global e-commerce platform. Design LLM post-training approaches (including instruction tuning and RLHF) with data-efficient learning, construct benchmark datasets for disputes and multi-turn complaints, and develop multilingual support. Improve response quality with evaluation metrics and A/B testing, enable automated dispute resolution and policy-adaptive responses, and optimize model efficiency (compression, quantization, low-latency inference) for scalable deployment.

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FursaFursa
TikTok
TikTok
1 month ago

Senior 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: 17 hours agoStatus: Live

Job Summary

Build and optimize AI-powered conversational customer service for TikTok’s global e-commerce platform. Design LLM post-training approaches (including instruction tuning and RLHF) with data-efficient learning, construct benchmark datasets for disputes and multi-turn complaints, and develop multilingual support. Improve response quality with evaluation metrics and A/B testing, enable automated dispute resolution and policy-adaptive responses, and optimize model efficiency (compression, quantization, low-latency inference) for scalable deployment.
Location: Seattle
Workplace: Onsite
Employment Type: Full time
Job Function: Data Science & Machine Learning
Seniority: Mid level

Key Responsibilities

  • •Design and implement an AI-driven conversational customer service agent for e-commerce inquiries, complaints, refunds, dispute resolutions, and logistics.
  • •Apply LLM post-training methods to enhance customer interaction quality, reducing errors and irrelevant or hallucinatory responses.
  • •Develop automated dispute resolution and policy-adaptive AI that verifies transaction details and supports platform compliance.
  • •Build multilingual customer support and translation models for real-time cross-language interactions.
  • •Optimize model deployment for scale using compression, quantization, and efficient/low-latency inference, including edge AI deployment.

Key Requirements

  • •Bachelor’s degree (or above) in computer science, computer engineering, statistics, applied mathematics, data science, or a related field.
  • •At least 5 years of work experience in related fields.
  • •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.
  • •Strong ability to apply LLM post-training techniques to optimize conversational customer support responses.
Experience:5+ yearsE-commerceConversational AILarge language modelsNLPMultilingual AI
Education:Bachelor's
Tech Stack:Large Language Models (LLMs)NLPInstruction tuningReinforcement learning from human feedback (RLHF)Continual learningFine-tuningDistillationMultilingual NLPMachine translationCross-lingual dialogue modelingRetrieval augmented generationMixture of expertsSparse attentionInference time scalingDistributed model trainingModel compressionQuantizationEfficient inferenceLow-latency inferenceEdge AI

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