1 day ago

Senior Software Engineer – Global E-Commerce AI Search Infrastructure (TikTok Shop)

✓ Verified Job

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

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Build and ship AI search agents and multi-turn shopping assistants for TikTok Shop. Own the unified agent harness across Q&A cards, in-app chatbot, and visual search, integrating MCP tooling and supporting end-to-end A/B tests. Improve LLM query understanding with cross-lingual reasoning, and design personalized memory infrastructure for low-latency serving. Contribute to post-training and inference infrastructure and partner with research teams to ship innovations reliably at global scale.

Location: Seattle

Workplace: Onsite

Employment Type: Full time

Job Function: Software Engineering

Seniority: Mid level

Key Responsibilities

•Design and ship ReAct-based AI search agents with planning, memory, and tool use, including DAG workflows and RAG pipelines for multi-turn shopping assistance.
•Improve LLM query understanding by driving multi-turn conversation, cross-lingual analysis, and reasoning chains; optimize answer generation for quality and latency.
•Build personalized memory infrastructure for long-term user profiles and real-time memory, including high-throughput storage/retrieval and feature pipelines over large behavior sequences.
•Contribute to post-training and inference infrastructure, including SFT, RL, distillation, and model-serving components to accelerate experimentation and meet latency targets.
•Bridge research and production by partnering with algorithm teams to evaluate agent/LLM innovations and ensure stable production rollout at global scale.

Key Requirements

•Bachelor’s or Master’s in Computer Science, Computer Engineering, or a related technical field.
•At least 5 years of experience building large-scale distributed systems, search infrastructure, or low-latency online services.
•Proficiency in C++, Go, or Java (C++ preferred) with strong systems fundamentals (data structures, OS, networking, multithreading, Linux performance tuning).
•Solid grasp of LLM and agent technologies, including RAG, tool use, and multi-turn reasoning, with experience contributing to production AI systems.
•Excellent system design instincts to independently architect and ship reliable, high-performance services with strong communication and ownership.

Experience:5+ yearsSearchLLMDistributed systemsE-commerce

Education:Bachelor's in Computer Science or Computer Engineering (or related technical field)

Skills:System designCommunicationOwnershipProblem-solving

Tech Stack:C++GoJavaLinuxReActDAGRAGMCPLLMQuantizationKV cacheContinuous batchingTensor parallelismSpeculative decodingPD separationVLLMTensorRT-LLMSGLangSFTRLHF

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

Website LinkedIn

Loading job details...

Preparing the role view and application actions.

TikTok

1 day ago

Senior Software Engineer – Global E-Commerce AI Search Infrastructure (TikTok Shop)

✓ Verified Job

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

Source: Company careers pageValidated by: Fursa AI

Last checked: 1 hour agoStatus: Live

Job Summary

Location: Seattle

Workplace: Onsite

Employment Type: Full time

Job Function: Software Engineering

Seniority: Mid level

Key Responsibilities

•Design and ship ReAct-based AI search agents with planning, memory, and tool use, including DAG workflows and RAG pipelines for multi-turn shopping assistance.
•Improve LLM query understanding by driving multi-turn conversation, cross-lingual analysis, and reasoning chains; optimize answer generation for quality and latency.
•Build personalized memory infrastructure for long-term user profiles and real-time memory, including high-throughput storage/retrieval and feature pipelines over large behavior sequences.
•Contribute to post-training and inference infrastructure, including SFT, RL, distillation, and model-serving components to accelerate experimentation and meet latency targets.
•Bridge research and production by partnering with algorithm teams to evaluate agent/LLM innovations and ensure stable production rollout at global scale.

Key Requirements

•Bachelor’s or Master’s in Computer Science, Computer Engineering, or a related technical field.
•At least 5 years of experience building large-scale distributed systems, search infrastructure, or low-latency online services.
•Proficiency in C++, Go, or Java (C++ preferred) with strong systems fundamentals (data structures, OS, networking, multithreading, Linux performance tuning).
•Solid grasp of LLM and agent technologies, including RAG, tool use, and multi-turn reasoning, with experience contributing to production AI systems.
•Excellent system design instincts to independently architect and ship reliable, high-performance services with strong communication and ownership.

Experience:5+ yearsSearchLLMDistributed systemsE-commerce

Education:Bachelor's in Computer Science or Computer Engineering (or related technical field)

Skills:System designCommunicationOwnershipProblem-solving

Tech Stack:C++GoJavaLinuxReActDAGRAGMCPLLMQuantizationKV cacheContinuous batchingTensor parallelismSpeculative decodingPD separationVLLMTensorRT-LLMSGLangSFTRLHF

Company Brief

TikTok

Industry: Digital Media

Company Size: Enterprise (1,001+ employees)

Growth: Scaleup

Headquarters: Singapore, Singapore

Founded: 2016

Website LinkedIn