Chong Xie (谢冲)
Work Experience
TikTok Live | Expert Algorithm Engineer
Oct 2025 – Present, Singapore
- Time-series forecasting of live-streaming agency revenue
- Video understanding and vision-language models (VLM) to surface high-quality streamers
ByteDance — Global Payment | Senior Algorithm Engineer
Dec 2022 – Oct 2025, Singapore
- Built the anti-money laundering (AML) system and its risk scoring model from scratch
- Graph computing with the Leiden community-detection algorithm, and GNNs such as GraphSAGE
- LLM-generated narrative reports, including suspicious transaction reports
Shopee | Senior Algorithm Engineer
Jan 2021 – Sep 2022, Singapore
- Built the POI database with NER-based address segmentation (CRF, BiLSTM and Transformer models), indexed into Elasticsearch
- Address / POI search over that index, with query rewriting, powering address entry and saving in the app
- Wi-Fi based positioning service
Shopee | Data Scientist
Jul 2019 – Jan 2021, Singapore
- Routing and path-planning engine built on Contraction Hierarchies (CH)
- Food-delivery service, with assignment and matching by the Hungarian algorithm among other methods
Huawei | Intern
Sep 2018 – Jun 2019, Wuhan, China
DiDi | Intern
Jun 2018 – Sep 2018, Beijing, China
- Recommended drop-off points for a rider’s destination POI
- Derived candidate points by clustering historical drop-off traces, DBSCAN among the methods used
Education
Master’s Degree in Geographic Information Science and Cartography
Wuhan University, China
Sep 2016 – Jun 2019
Bachelor’s Degree in Photogrammetry and Remote Sensing
Wuhan University, China
Sep 2012 – Jun 2016
Skills
Deep Learning
- Large Language Models (LLM) & Vision-Language Models (VLM)
- Video Understanding
- Time-Series Forecasting
- Graph Learning: GNNs (GraphSAGE), community detection (Leiden)
- Risk Modelling (AML / Fraud)
- Search Systems
- Natural Language Processing (NLP)
Engineering
- System Design
- Data Structures
- Spark
- Databases: PostgreSQL, MySQL, Redis, Hive
Publications
- MAP-Vis: A Distributed Spatio-Temporal Big Data Visualization Framework Based on a Multi-Dimensional Aggregation Pyramid Model
- Building A Large-Scale Routing Service