体验一切，理解一切，掌握一切
Hi！我是李帅国（笔名 dingyun / Lsg），一名 Java 后端开发工程师，6 年经验，坐标杭州。
深耕水利水电行业信息化，完整经历了从传统水务信息化平台到 AI 知识库 / 情报平台的演进，具备独立负责模块设计、开发、部署上线的全流程能力。近期聚焦「通用 AI 知识库 + 情报系统」，在低代码平台开发、流程引擎开发、Dify、知识库管理、大模型实体抽取、数据权限等领域有扎实的实战积累。
工作经历
- 华东院数智工程院（中国电建华东院） · Java 高级开发工程师 · 2020.04 — 至今
- 水利水电行业信息化研发，历任深圳智慧水务、水电水利知识库、通用 AI 知识库平台等项目的核心后端开发
- 近两年重点参与 AI 知识库与情报系统建设，负责低代码平台开发、流程引擎开发、Dify、权限体系等模块，推动传统业务平台向智能化升级
- 北京掌上先机（旺店通） · 大数据开发工程师 · 2019.06 — 2020.04
- 参与大数据平台技术架构规划与离线数仓建设，负责数仓模型与表设计、Spark 任务调优与分布式爬虫数据补全
低代码平台开发
在通用 AI 知识库平台中，负责低代码相关能力的设计与开发：
- 复合实体复制：支持新增 / 删除 / 修改操作
- 多对多关系数据模式：实现多对多关系的数据建模与操作
- 文件视图：文件视图上传与视图数据导入接口兼容
- 流程抄送：流程抄送能力开发
- 订阅与搜索管理：订阅与搜索记录管理
个人介绍
- 【笔名】dingyun / Lsg
- 【坐标】杭州
- 【职业】Java 后端开发工程师
- 【方向】企业级应用 · 权限体系 · 数据平台 · AI 应用落地
- 【邮箱】18595750306@163.com
- 【爱好】写博客，滑雪，篮球，羽毛球，烧脑的影视作品
专业技能
| 领域 | 技术栈 |
|---|---|
| 后端框架 | Spring Boot / Spring MVC、MyBatis / MyBatis-Plus、Spring 定时任务 |
| 数据库 | MySQL、PostgreSQL、达梦（DM）、SQL Server |
| 中间件与检索 | Redis（缓存/权限缓存）、Elasticsearch + Kibana（情报检索） |
| AI 应用 | 大模型接口对接、RAG 知识库、Dify 应用平台部署（docker-compose） |
| 低代码 / 流程引擎 | 低代码平台开发、流程引擎开发（流程表单、流程抄送、数据/功能权限） |
| 部署运维 | Docker / Docker Compose、Linux、Nginx |
| 其他 | Git 版本管理、Vue 基础前端开发 |
编程语言倾向
| 语言 | 熟练度 |
|---|---|
| Java | ★ ★ ★ ★ ★ |
| SQL | ★ ★ ★ ★ |
| Shell | ★ ★ ★ |
| Python | ★ ★ ★ |
| Scala | ★ ★ ★ |
| javascript | ★ ★ |
| C | ★ |
| PHP | ★ |
技术博客
- 博客：https://githubdingyun.github.io
- GitHub：https://github.com/githubdingyun
Experience everything, understand everything, master everything.
Hi! I’m Li Shuaiguo (pen name dingyun / Lsg), a Java backend engineer with 6 years of experience, based in Hangzhou.
I work on IT solutions for the water conservancy and hydropower industry, and have been through the evolution from traditional water-utility platforms to AI knowledge base / intelligence platforms. I can independently own a module end to end, from design and development to deployment. Recently I focus on the “General AI Knowledge Base + Intelligence System”, with hands-on experience in low-code platform development, workflow engine development, Dify, knowledge base management, LLM entity extraction, and data permissions.
Experience
- Huadong Engineering Digital & Intelligence Institute (PowerChina Huadong) · Senior Java Developer · 2020.04 — present
- R&D for water conservancy and hydropower informatization; core backend developer on the Shenzhen smart-water, hydropower knowledge base, and general AI knowledge base projects
- Focused on building the AI knowledge base and intelligence system in the past two years, owning modules such as low-code platform development, workflow engine development, Dify, and the permission system
- Beijing Zhangshang Xianji (Wangdiantong) · Big Data Developer · 2019.06 — 2020.04
- Took part in big data platform architecture planning and offline data warehouse build-out: data warehouse modeling and table design, Spark job tuning, and distributed crawler data completion
Low-code platform
Designed and built the low-code capabilities of the General AI Knowledge Base platform:
- Composite entity copy: copy with add / delete / modify operations
- Many-to-many data model: modeling and operations for many-to-many relations
- File view: file view upload, plus compatibility for view data import APIs
- Process CC: process carbon-copy capability
- Subscription & search: subscription and search record management
Personal
- [pen name] dingyun / Lsg
- [location] Hangzhou, China
- [occupation] Java Backend Engineer
- [focus] Enterprise applications · permission systems · data platforms · AI applications
- [email] 18595750306@163.com
- [hobbies] blogging, skiing, basketball, badminton, brain-burning films
Skills
| Area | Stack |
|---|---|
| Backend | Spring Boot / Spring MVC, MyBatis / MyBatis-Plus, Spring Scheduling |
| Databases | MySQL, PostgreSQL, DM (Dameng), SQL Server |
| Middleware & Search | Redis (cache / permission cache), Elasticsearch + Kibana (intelligence search) |
| AI | LLM API integration, RAG knowledge base, Dify deployment (docker-compose) |
| Low-code / workflow | Low-code platform development, workflow engine development (form flow, process CC, data/function permissions) |
| Ops | Docker / Docker Compose, Linux, Nginx |
| Others | Git, basic Vue frontend |
Programming languages
| Language | Rank |
|---|---|
| Java | ★ ★ ★ ★ ★ |
| SQL | ★ ★ ★ ★ |
| Shell | ★ ★ ★ |
| Python | ★ ★ ★ |
| Scala | ★ ★ ★ |
| JavaScript | ★ ★ |
| C | ★ |
| PHP | ★ |
Links
- Blog: https://githubdingyun.github.io
- GitHub: https://github.com/githubdingyun
