- Good knowledge and experience in administration and troubleshooting for AWS Cloud Computing services like S3, EC2 , IAM, EMR, GLUE, ATHENA, OPENSAEARCH- Apply advanced troubleshooting techniques (network, OS, hardware, open source software, performance tuning) to solve customers’ issues and provide unique solutions to customers' individual needs- Write tutorials and technical articles for the developer community, partner with development/service teams to solve complicated issues- Participate in new hiring, developing & present training, coach and mentoring mentees, event management- Work with leadership on operational improvement and strategic initiatives- Participate internal programming program to develop new features for internal platform

• Learned and mastered all kinds of internal development tools, platforms, CICD pipelines, code review and processes• Completed technical doc for new feature development, including detailed solutions, performance analysis, schema design, availability, scalability, restful API design• Used DynamoDB as backend database, and implemented CURD operations• Refactor front-end and back-end codes and logic in REACT and JavaScript runtime environment separately• Implemented 100% converge for Unit tests, finished Integration tests, Canary testing, Availability tests• Learned using CDK to manage infrastructure in AWS accounts and improved infrastructure construction • Wrote python scripts to automate data population and repeated workTroubleshoot technical issues for development features and environment, debug and fix bugs • Collaborated closely with teammates, UX, Product manager for feature development

- Good level of big data services and software like Apache Hadoop, Apache Spark, Apache Hive et cetera in AWS EMR- Good knowledge of Amazon OpenSearch Services, Glue, Athena- Apply advanced troubleshooting techniques to quickly find the root cause of the customer's issues- Good Communication skills with customers through a variety of contact channels to provide technical support and solution- Work directly with Amazon Web Services Teams to help reproduce and resolve customer issues

- Learn and use big data technologies like Apache Hadoop, Apache Spark, Apache Hive, and Presto or ETL skills etc.- Apply advanced troubleshooting techniques to find the root cause and provide solutions to customers.- Communicate with customers through a variety of contact channels which include telephone, email, and web/live chat.- Work directly with Amazon Web Services teams to help reproduce and resolve customer issues

• Developed and maintained the web application for customers to manage autonomous driving, completed features: data dashboard, car reservation, data collection et cetera• Implemented the back-end with the Spring MVC framework, designed REST APIs for client-server communication • Developed the front-end by using REACT, providing a user-friendly interface for the system like Dashboard, Charts, Forms to enhance user engagement and experience• Built databases and designed table schemas by using MySQL, optimized SQL queries for the heavy-load parts of the system which improved performance by 10%• Used Junit to test to ensure code quality and achieve 95% coverage• Wrote bash shell scripts to deploy services in docker and integrated CICD for the different environments with internal pipeline platform• Participated with team on tracking with the project plan, timeline, user experience and resolve technical issues