Liu Peixin - master's student in Computer Technology at China University of Mining and Technology.
AI Full-Stack Portfolio
Qinghe Notes Liu Peixin - AI Full-Stack Engineer
Projects, resume, proof
RAG applications, web systems, data engineering, automation, and deployment work.
Vue 3Spring BootFastAPIMilvusDockerPySpark
RAGRetrieval and QA Full StackFrontend, services, delivery ProofAwards, certificates, resume
AI RAG and LLM applications
Full Frontend, backend, and delivery
Data Data engineering and automation
Proof Awards and certifications
Evidence
AI full-stack work Projects and proof.
SOE decision system, device platform, web automation, and data engineering projects.
Lanqiao Cup awards, Alibaba Cloud ACP, software exam certificate, and English tests.
Resume PDF, project links, awards, certifications, and deployed portfolio.
Capabilities
Technical Capability Matrix
UI
Frontend Engineering
Admin platforms, responsive interfaces, interaction states, component pages, and static delivery.
API
Backend Services
Business entities, permission flows, audit records, service integration, and REST APIs.
LLM
AI / RAG
Embedding search, Milvus retrieval, rule-based review, and LLM workflows for knowledge QA.
DATA
Data Engineering
Hive, Spark, PySpark, recommendation logic, data processing, and analysis pipelines.
BOT
Web Automation
Python, Selenium, XPath, regular expressions, web extraction, templates, and data cleaning.
OPS
Delivery
Docker, Nginx, static builds, production deployment, and maintainable release workflows.
Flagship
SOE Central Decision System
Full-Stack Development and AI Application Engineering
DocumentsEmbeddingMilvus SearchRule ReviewLLM QAAudit Logs
- Built the demo with Vue 3, Spring Boot, FastAPI, Milvus, and Docker
- Implemented retrieval with Embedding and Milvus, combined with rules and LLM prompts for compliance risk checks
- Delivered document management, RAG QA, contract and procurement review, audit logs, personnel management, and notifications
Evidence
Technical Proof Trail
Built a Vue 3, Spring Boot, FastAPI, Milvus, and Docker demo covering document management, RAG QA, contract review, and procurement review.
Implemented platform pages and interaction flows with Vue.js and ElementPlus for a government-enterprise web system.
Wrote Selenium, XPath, JavaScript, and regex scripts for web extraction, template configuration, and structured data cleaning.
Awards and certifications covering algorithmic programming, AI, big data, software engineering, and English proficiency.
Projects
Projects and Internships
SOE Central Decision System
Full-Stack Development and AI Application Engineering
A knowledge-enhanced decision platform for state-owned enterprise scenarios, covering document management, AI QA, contract review, procurement review, audit logs, and dashboards.
- Built the demo with Vue 3, Spring Boot, FastAPI, Milvus, and Docker
- Implemented retrieval with Embedding and Milvus, combined with rules and LLM prompts for compliance risk checks
- Delivered document management, RAG QA, contract and procurement review, audit logs, personnel management, and notifications
Big-Data Shopping Mall System
Web and Data Engineering Project
A shopping mall system combining frontend pages, backend services, data warehouse processing, and recommendation logic.
- Used Thymeleaf, Spring Boot, Hive, and PySpark across the web and data processing layers
- Built frontend/backend functions, data warehouse workflows, and recommendation modules
- Registered the project as a software copyright
Connected Device Management Platform
Frontend Developer
Frontend work for a connected device management platform at China Mobile Jiangsu Xuzhou Branch.
- Developed pages and interaction logic with Vue.js and ElementPlus
- Implemented device management screens based on business workflows
- Worked on government-enterprise web platform delivery
Web Data Source Collection and Cleaning
Template Configuration Intern
Data source collection, cleaning, and template configuration work for a big-data platform at Founder Electronics.
- Wrote Python crawler scripts with Selenium for web collection flows
- Used JavaScript, XPath, and regular expressions to clean structured data
- Handled real-world page parsing, web constraints, and data quality issues
Proof
Selected Certificates
Lanqiao Cup National Finals Third Prize
Liu Peixin
C++ programming, postgraduate group, national finals.
Alibaba Cloud ACP LLM Engineer
Alibaba Cloud
Professional certification in large-model engineering.
Software Designer Certificate
Ministry of Human Resources and Social Security; Ministry of Industry and Information Technology
Intermediate-level software engineering certification.