With over 20 years of experience in Java development, I am highly proficient in Oracle databases due to my extensive work in the enterprise sector. I am skilled in SQL/PLSQL as well, as it is frequently used in my work. Additionally, I am experienced in integrating different systems and proficient in using XML for data interchange. In recent years, I have been researching the blockchain ecosystem and have gained knowledge in smart contracts, utilizing web3j for smart contract invocation. I am eager to explore opportunities in the field of blockchain. Recently, in order to better collaborate with frontend development, I have also self-studied React. In addition to working on several small projects, I have documented important points to note, which you can refer to on my GitHub repository at https://github.com/kevintsai1202/React-Notes. Java開發超過10年以上經驗，由於都在企業端工作，非常熟悉Oracle資料庫，SQL/PLSQL也因工作需要經常使用，另外不同系統間常需進行整合，對使用XML來拋轉資料非常熟練 近幾年有研究區塊鏈生態，懂智能合約並能透過web3j來調用智能合約程式，也希望有機會能跨足區塊鏈領域 最近為了跟前端有更好的搭配，也自學了React 除了做了幾個小專案外，也寫了需注意的事項，可以參考我的Github https://github.com/kevintsai1202/React-Notes