Here is Hongdao Meng
AI Engineer
Based in San Jose, I work on Transaction Agent in TikTok’s GMPT Transaction Platform team, focusing on high-performance knowledge bases, automated skill generation, and offline agent evaluation and self-improvement.
About Me
My Introduction
I'm Hongdao Meng, an AI Engineer based in San Jose, California. At TikTok’s GMPT Transaction Platform team, I develop Transaction Agent, focusing on high-performance knowledge bases, automated skill generation, and agent evaluation and self-improvement. My experience spans deepfake detection, RAG, recommendation infrastructure, and federated learning, with a computer science background from NYU and first-author research published in IEEE Transactions on Big Data.
experience
projects
worked
News
My Recent Updates-
I joined TikTok’s GMPT Transaction Platform team as an AI Engineer, building Transaction Agent through high-performance knowledge bases, automated skill generation, and offline evaluation and self-improvement.
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I gave a presentation on recommendation systems at the student learning hub event held by C2smarter Center.
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Excited to share that I’ve accepted a 2026 spring internship offer from TikTok! I’ll be joining the e-commerce recommendation infrastructure team, focusing on Feature Service and User data accessor.
Earlier updates Show fewer updates
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Excited to share that I’ve accepted a 2025 summer internship offer from TikTok! I’ll be joining the e-commerce team, working on recommendation infrastructure.
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I updated my photography works in my website.
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I started my research on automated deployment with AI (CI/CD)!
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I'm happy to share that I have started my Developer Assistant job in C2SMARTER Center!
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I got 3.8 GPA for my first semester!
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My paper Federated Multi-view Multi-Label Classification was accepted by IEEE TBD.
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I started my work and research on deepfake detection!
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I'm happy to share that I've started my master of computer science at New York University!
Skills
My Technical ProficiencyPython
100%C++/C
90%Java
80%Go
70%SQL
70%JavaScript
80%TypeScript
90%Shell
70%React
85%Angular
75%Vue.js
75%HTML/CSS
90%Django
85%Flask
90%Node.js
80%Spring Boot
75%Fine-tuning
100%Practice
A Vision Transformer training pipeline for deepfake classification, using class-weighted loss and checkpoint evaluation.
Explore the deepfake projectPost-training
100%Practice
Connecting model adaptation with evaluation: compare checkpoints and inspect precision, recall, and F1 before choosing a model. The deepfake project shows the related fine-tuning and evaluation workflow.
View the related workflowAI Agents
100%Practice
A voice-first assistant connects conversation, tool calling, and persistent task data through LangChain and FastAPI.
Explore the voice agentRAG & Knowledge Bases
100%Practice
Hybrid sparse and dense retrieval with BGE-M3 and Milvus, followed by result fusion and reranking. At TikTok, my current focus also includes high-performance knowledge bases.
Explore the retrieval projectAutomated Skill Generation
100%Practice
Automated skill generation for Transaction Agent in TikTok’s GMPT Transaction Platform team, as part of building a self-improving agent.
View my current roleAgent Evaluation & Self-improvement
100%Practice
Building an offline evaluation and self-improvement pipeline for Transaction Agent, connecting evaluation feedback to the next iteration.
View my current rolePyTorch
90%TensorFlow
85%Scikit-Learn
85%Pandas
90%MySQL
85%PostgreSQL
85%MongoDB
80%Redis
80%DynamoDB
70%Oracle
70%MilvusDB
75%Elasticsearch
75%Git
95%Docker
85%AWS
80%Azure
75%CMake
75%Jenkins
70%Nginx
75%CI/CD
80%LangChain
80%OpenCV
75%Grafana
70%Prometheus
70%Experience
My Educational & Professional Journey
AI Engineer
TikTok · GMPT / Transaction Platform, San JoseSoftware Engineer Intern
TikTok, Seattle
AI Engineer Intern
DeepFake Detection Startup, New York
AI Algorithms Engineer Intern
QingTeng · Cloud Platform R&D Department, Beijing
AI Researcher
Data Mining & Security Lab, Beijing
Master of Science in Computer Science
New York UniversityBachelor of Engineering in Information Security
Beijing University of Technology
Outstanding student of Beijing Soaring Program
Beijing No.8 High School (Top3 in Beijing)Portfolio
Recent ProjectsSelected work
Three projects, a closer look
Deepfake Detection
Image and audio detection, from uploaded media to model predictions.
Explore the project →Hybrid Retrieval for RAG
Sparse and dense search meet query expansion and reranking.
Explore the project →Voice-Driven AI Agent
A conversational prototype for reminders, records, and everyday tasks.
Explore the project →More projects & research
Real-time Threat Detection Platform
Developed with Spring Boot and Kafka, processing 150k+ daily security logs, reducing alert latency by 22% through optimized SQL queries.
Federated Multi-View Multi-Label Classification
Published research in IEEE Transactions on Big Data, introducing the FMVML method, which improved average precision by 8.3%.
Intelligent Health Assistant - Voice-Driven AI Agent
An intelligent health assistant AI agent system designed specifically for elderly people, providing personalized health management services through voice interaction, integrated with LangChain and real-time voice processing technologies.
Presentation on Recommendation System
Sharing content on recommendation systems from both academic and industrial perspectives
Publications
My recent research papers
Federated Multi-View Multi-Label Classification
First Author. Published in IEEE Transactions on Big Data, 2025.
Susceptibility Genes Identification in Salt Sensitivity of BP
Co-author. Published in BMC Genomics, 2024.
Multi-Omics Big Data Analysis in Hypertension Research
Co-author. Published in Chinese Journal of Cardiology, 2023.
Key Methods of Multi-Modal Information Fusion
First Author. Patent (Application Number: 2023111952962), 2023.
Photography
Scroll through my most recent work
Light winding through red stone
2024 · Sony a7C II
Clouds drifting above a blue harbor
2024 · Film · Nikon FE2
A bicycle rests beneath the trees
2024 · Sony a7C II
A low sun beneath a pink sky
2023 · Sony a6400
Figures wading along the quiet shore
2023 · Sony a6400
White pigeons against a pink sky
2023 · Sony a6400
Pink tulips across a green garden
2022 · Sony a6400
White blossoms catching the sunlight
2022 · Sony a6400
A bird passing the brick wall
2022 · Sony a6400
Purple clouds over the city
2021 · Sony a6400
Reeds along the city’s edge
2021 · Sony a6400
Mountain ridges dissolve into blue
2021 · Sony a6400