Yulin Deng

Senior Python Developer | Experienced AI Application Developer

🎓 Education

Jiangxi University of Science and Technology 2013.09 - 2017.06

Bachelor’s Degree in Electronic Information Engineering

💼 Professional Experience

🚀 Overseas AI Startup Company

AI Application Developer | Jan 2025 - Present

Key Responsibilities:

• Led architecture migration from LangChain to LlamaIndex framework, optimizing system design and performance
• Developed multi-source data integration solutions supporting AWS S3, Google Drive, and SQL Server with batch embedding processing
• Built Weaviate vector database pipeline for large-scale data vectorization and storage
• Integrated multiple LLM models (OpenAI, AWS Bedrock) with unified vector search capabilities
• Implemented Model Context Protocol (MCP) support, encapsulating Google Workspace and SQL Server MCP servers

Key Achievements:

• ⚡ 30% improvement in query response speed, 25% reduction in memory usage
• 📊 Successfully processed TB-scale data with 50% efficiency improvement
• ✅ Achieved 99.5% accuracy in incremental synchronization with zero downtime
• 💰 Reduced API calls by 30%, saving 15% monthly costs

🚗 Shanghai JIDU Automotive Co., Ltd.

Python Engineer | Jan 2022 - Dec 2024

Key Responsibilities:

• Designed and implemented Feishu document security inspection system with file classification and access control
• Optimized Jama requirements management system with dynamic permission allocation to reduce license costs
• Developed automation scripts and Groovy solutions for Jira management across multiple business units
• Led implementation of DPMS and JFS core business requirement management systems
• Integrated MDM and AD server for organizational structure synchronization and automated onboarding/offboarding processes

Key Achievements:

• 🔒 Reduced high-risk file leaks from 30,000+ to zero with 100% risk file interception
• 💎 Saved over 2 million RMB annually in license costs with 500%+ ROI
• 🤖 Deployed 2,000+ customized Groovy scripts, increasing automation rate by 85%
• 📈 Improved requirement response time by 50% and business process transparency by 90%

💻 Szhi Information Technology (Shanghai) Co., Ltd.

Python Developer | Feb 2021 - Jan 2022

Key Responsibilities:

• Participated in business requirement discussions and collaborated with product team on product prototypes
• Collaborated with leadership and team members on requirement analysis and database schema design
• Established overall framework architecture and standardized code deployment processes
• Participated in Code Review sessions to improve code quality through peer learning
• Refactored recruitment business code, implementing bug fixes and optimizations

Key Achievements:

• 📦 Led development of standardized Django/Flask framework, improving team efficiency by 40%
• 🔍 Established Code Review mechanism and Git Flow, reducing defect rate by 35%
• 🛠️ Refactored 5,000+ lines of code, resolved 20+ legacy bugs, improved stability by 45%
• ⚡ Optimized API response time from 2.5s to under 0.8s
• 🗄️ Designed database schemas supporting 10,000+ daily data processing volume

📊 Shanghai Data Exchange Co., Ltd.

Python Developer | Feb 2020 - Jan 2021

Key Responsibilities:

• Implemented and optimized backend services, doubling system processing capacity
• Led refactoring of critical modules with asynchronous processing mechanisms
• Developed core business logic and optimized 10+ key features
• Led database performance optimization through indexing and query tuning

Key Achievements:

• 🚀 Doubled system processing capacity
• ⚡ 30% efficiency improvement through asynchronous processing
• 📉 50% reduction in database query time
• 📈 40% increase in project delivery efficiency

🏨 Shanghai Yilu Investment Management Co., Ltd.

Python Developer | Feb 2018 - Jan 2020

Key Responsibilities:

• Assisted CTO in technical selection and compatibility testing for smart hotel hardware products
• Developed hardware communication protocols and optimized low-level communication modules
• Built Android application core framework and designed efficient database architecture
• Established comprehensive operations training system and deployment maintenance procedures

Key Achievements:

• ⏱️ Led team to complete cloud-based hotel self-service terminal within 3 months
• 📱 Independently completed front-end and back-end development for facial recognition hardware
• 🏆 Delivered complete hotel PMS system from scratch, successfully deployed in 200+ hotels

🛠️ Technical Skills

📫 Contact

__END__