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Vel Tien-Yun Wu I bring 5 years of hands-on experience in data engineering and software development, with a focus on building scalable data processing systems utilizing Hadoop, Spark, Kafka and Docker. My expertise in developing efficient ETL pipelines has been fundamental in optimizing data workflows for various data warehouses, enhancing data integrity and availability. My track record includes managing high-volume data pipelines, automating scheduling processes to improve operational efficiency, and deploying monitoring solutions that have reduced Mean-Time-To-Repair (MTTR) by 40%. I have a strong foundation in SQL, especially PostgreSQL, which enables

務，並測試Dremio作為數據處理和分析工具。 建置Sam Project 進行Aws Lambda 部署。 建置Promethus, Grafana 監控Backend, Mongo 資源監控。 嘗試理解帳務Domain前處理技術, spark 相關技術的資料進行ETL處理。 嘗試使用Terrform 部署 參與重構的規劃討論，參與後端開發，並與前端進行整合，理解商務邏輯運

端同事協作 - 新技術研究，與導入應用評估 - 前後台 API 文件資料規格串接討論 <輔助技能> - Photoshop / Illustrator / Figma (切版、修改、編輯) <其他技能> - Spark AR Instagram & Facebook 濾鏡製作 (品牌活動) - 使用 Notion 建立公司專案與人員管理 <Side Project> - flashCSS ( 插件：快速生成 CSS 樣式 ) ( https://github.com/kymmax/flashCSS ) - Particle Jockey

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5% through ad optimization. Utilizing SEO, boosted the organic traffic of articles by 92.2% within one year. Increased the number of registrations by over 500% via unique engagement of the articles in the serial KOL/celebrities campaigns, Desirable Signals. Social Content Account Manager • Digit Spark DecDec 2021 | Taipei, Taiwan Utilized various Martech tools to conduct market research. Crafted a comprehensive digital marketing strategy that ultimately resulted in orders totaling 2.5 million NTD. Drove the followers on Facebook and Instagram +300 per month and average post engagement rate +65

and Scikit-Learn libraries for predictive analysis of customer behavior. Designed and implemented a scalable data warehouse architecture using Apache Cassandra, PostgresDB, and Redis. Optimized database performance by tuning queries in SQL Server, Oracle and PostgreSQL databases. Implemented efficient data processing algorithms on large datasets with Apache Spark, MapReduce, and Pandas Python. Created dashboards in Tableau Desktop Professional Edition to visualize complex datasets in an interactive manner. Created custom scripts to automate the extraction, transformation, and loading of Big Data into distributed systems. Utilized Amazon Web Services components such as EMR and S3 buckets

Justin Lin Taiwan, Taipei · [email protected] ·· github.com/jubeatwww Experience Lead Software Engineer • Digit Spark JanPresent | Taipei, Taiwan Manage and execute strategic refactoring projects for cost-efficient services, achieving a 35% reduction in database expenses. Guide my team through comprehensive refactoring of a 3TB database (2 billion records) and oversee architectural enhancements, achieving a drastic reduction in feature response times from over 10 minutes to under 5 seconds. Lead the infrastructure design and collaborate with the execution team to develop an advertising delivery system from scratch, achieving 100K daily ad views and accommodating