VICTOR

张辰扬

Full-Stack Developer & Data Engineer

I follow logic and chase curiosity — building where engineering discipline meets product imagination.
ENTP
Personality
♒
水瓶座
上海
From Shanghai
B
Blood Type

About Me

Explore my professional journey, educational background, and personal interests

  • JA
    LanguagesJava
  • LanguagesTypeScript
  • LanguagesPython
  • LanguagesC++
  • LanguagesSQL
  • FrameworksSpring Boot
  • FrameworksFlask
  • FrameworksReact
  • FrameworksNode.js
  • FrameworksLangChain
  • Data & CloudKafka
  • HB
    Data & CloudHBase
  • Data & CloudPySpark
  • Data & CloudAWS
  • Data & CloudGCP
  • Data & CloudPostgreSQL
  • HD
    Data & CloudHDFS
  • Data & CloudRedis
  • DevOpsDocker
  • DevOpsKubernetes
  • DevOpsGit
  • DevOpsCircleCI
  • DevOpsPrometheus
  • SpecialtiesMicroservices
  • SpecialtiesAgent Workflow Development
  • SpecialtiesRAG Systems
  • SpecialtiesSEO Optimization

Hobbies

Fencing

Fencing

Sabre

Swimming

Swimming

High school varsity swimming

badminton

Badminton

Double & Single

piano

Piano

Level 10

LAST UPDATED11/17/2025

Work Experience

CAREER GROWTH
PROFESSIONAL JOURNEY
3 POSITIONS
ALIBABA logo

Software Development Engineer

ALIBABA

Current
Jun 2025 – August 2025
Shanghai, China

International Merchandise Team - User Insight System & Product Selection Data Pipeline

Key Achievements
Built real-time ETL pipelines with trigger-based updates for 50M+ users
Exposed user profiles via Spring Boot microservices for multi-Agent segmentation
Boosted targeting precision by 20%, increasing personalization ROI
Standardized indicator definitions across 3 core modules (CargoFlow, Product Pool, NOVA)
Engineered 4 base tables with 134 indicators covering 2 major product pages
Achieved 60%+ code reuse between React Native and mini-programs
Technologies
Spring BootETL PipelinesReact NativeMicroservicesData Engineering
MEITUAN logo

Software Development Engineer

MEITUAN

Mar 2025 – Jun 2025
Shanghai, China

Kuaìlǘ Division - B2B Food Distribution Platform & Supply Chain Optimization

Key Achievements
Developed supply chain optimization system with image recognition and AI-Agent analysis
Structured handwritten menu images using Gaussian Blur and Median Filter preprocessing
Leveraged LangChain for RAG Query, behavior analytics, and retrieval tools
Reduced procurement costs by 20% and minimized supply chain risk by 40%
Engineered Lambda architecture supporting 200K+ patients for rehabilitation platform
Trained XGBoost models achieving 87% prediction accuracy on patient weight trends
Improved job reliability by 30% with Apache Airflow automation
Technologies
LangChainRAGXGBoostApache AirflowSpring BootMyBatis PlusImage Processing
UNIONPAY logo

Software Development Engineer

UNIONPAY

June 2024 – August 2024
Shanghai, China

Engineering Technology Department - NL2SQL & Knowledge Q&A Platform

Key Achievements
Implemented QWEN embeddings for vectorization in NL2SQL system
Built multi-retrieval strategy (BM25 + QWEN dual-tower + personalized retrieval)
Boosted query precision by 28% through enhanced retrieval methods
Enhanced ranking via Wide & Deep modeling and Qwen1.5-32B-Chat transformer
Reduced irrelevant results by 45% through improved ranking algorithms
Technologies
QWENBM25Wide & DeepQwen1.5-32B-ChatNL2SQLVectorization
CAREER PROGRESS
18 ACHIEVEMENTS💼

Education

ACADEMIC JOURNEY
School logo

Master's Degree

Columbia University

2025•3.9/4.0

Advanced studies in Computer Science with focus on AI and Machine Learning

School logo

Bachelor's Degree

University of Michigan

2021•3.8/4.0

Double Major in Data Science major & Mathematics minor

ACADEMIC PROGRESS🎓

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Project Showcase

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