FaultCode

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Chengs Luo（罗成盛）

[GitHub][Twitter]

Work Experience

Tech Lead Jan 2024 - Sep 2025 · 1 yr 9 mos Shanghai, China

  • Managed the development of marketing campaigns related to Temu’s ad-serving traffic.
  • Led the development and management of Temu’s promotional pricing strategies and a competitor auto-pricing system.
  • Skills: Ad-serving · Cross-border E-commerce · Temu · Marketing Campaigns · Auto-pricing · Pricing

Backend Engineer Aug 2022 - Jan 2024 · 1 yr 6 mos Shanghai, China

  • Developed and iterated on the B-side management system for the merchant product scheduling module in the Duo Duo Maicai (community group-buying) project.
  • Skills: Community Group-buying · Merchant Management · B-side Systems · Supply Chain Management

Recommendation System Engineer Jul 2021 - Jul 2022 · 1 yr 1 mo Shanghai, China

  • Contributed to the development and iteration of the product recommendation system for the “Duo Duo Maicai” project.
  • Skills: Recommendation Systems · Product Feeds Recommendation · Java Development · Experimentation Systems · Community Group-buying · Algorithm Strategy

Backend Engineer Aug 2020 - Jul 2021 · 1 yr Shanghai, China

  • Participated in the 0-to-1 development of multiple modules for the “Duo Duo Maicai” project, including product listings, product detail pages, shopping cart, and recommendation systems.
  • Skills: Java Development · Community Group-buying · 0-to-1 Development

Recommendation System Engineer May 2018 - Aug 2020 · 2 yrs 4 mos Shanghai, China

  • Developed and iterated on algorithm strategies for the Pinduoduo main app’s product recommendation system.
  • Led the development of the DMP marketing audience segmentation system.
  • Completed the 0-to-1 MVP for “Duo Duo Short Video,” responsible for recommendation engineering and strategy.
  • Skills: Product Feeds Recommendation · Short-video Recommendation MVP · DMP

Education

2014 - 2018, Bachelor in Computer Science and Technology, Shanghai University

SKILL

Web: React、Redux、Ant Design、Umi etc.;

Server: Proficiency in Java；Used Spring/Spring Boot, Flink, Hive, Kafka, HBase, ElasticSearch, MySQL, Redis, Tensorflow, Pytorch etc.；Have used C++ and Python;

Familiar Field: Recommended System、E-commerce、Advertising、Marketing Campaign;

Contact

Email: chengsluo@gmail.com
Office: Putuo District, Shanghai

Last update: Jun. 2025

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