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San Jose, CA, Street Address PHONE NUMBER AVAILABLE EMAIL AVAILABLESenior Software EngineerEnthusiastic and skilled Computer Science professional with a MasterStreet Address ;s Degree. Proven expertise in designing and implementing enterprise-level applications, showcasing a deep understanding of software architecture and development methodologies. Date available to start work: ImmediatelyTECHNICAL SKILLSJava/J2EE, Kotlin, Groovy, Shell, JavaScript, XML, Design PatternsAWS/EC2/EKS, Docker, Kubernetes, RabbitMQ, Git, Gradle, Maven, Swagger, Selenium, Postman, JUnit, UML, Tomcat, Agile/Scrum, TDD, SDLC, Jenkins, CI/CDSpring/Spring Boot, Hibernate, Struts, MVC, Rest API, Angular, JQuery, BootStrapSQL, MySQL, MongoDB, PostgreSQL, OraclePROFESSIONAL EXPERIENCEOportun, San Carlos, CA Senior Software Engineer Dec 2019 Dec 2023 As a Fraud Defense engineer, I worked on Fraud Engine and related systems to support the security of financial services.Developed highly-available, distributed and scalable systems to serve 2 million customers and 10,000 loan applications every day.Designed and created microservice-based applications on cloud platform AWS EC2 and EKS using Docker, Kubernetes and CI/CD.Implemented strategies to detect financial attacks and prevent fraud, decreased fraudulent loans by 12%.Monitored production services, diagnosed and fixed issues in a fast-paced environment, improved bug fix rate by 40%.Redesigned the financial strategy validation system, enhanced the speed by 60% and verification accuracy from 80% to 96%.Worked with cross-functional teams in Agile and through the entire project development life cycle. Tech Stack: Java, Spring Boot, Kotlin, Restful, Microservices, AWS, Docker, Kubernetes, RabbitMQ, Gradle, MySQL, MongoDB, CI/CD. Network Telephone Services, Los Angeles, CA Software Engineer, Aug 2017 Dec 2019 Worked on credit card payment development based on VOIP platform. Designed and developed applications with entire SDLC.Designed and developed microservices to support credit card payment processing which boosted transactions by 8%.Maintained 8 applications, reviewed, redesigned, and enhanced code, reduced bug incidence by 70%.Designed systems using UML and created technical specifications with proposed solutions and implementation details.Extensively involved in TDD in 2 projects, standardized the strategy and streamlined the testing process for the team. Tech Stack: Core Java, Rest API, Microservices, Hibernate, Struts, Bootstrap, MySQL, UML, JUnit, JIRA. Ericsson, Beijing, China Senior Software Engineer Jun 2013 Sep 2015 Developed LTE Base Station Management System from scratch. The system provided a platform to manage LTE base stations with various level views. Worked in a fast-paced Agile/Scrum environment.Consistently worked with stakeholders to make clear the customer needs and plans of incremental development.Effectively collaborated with geographically separated teams in China, Italy, Sweden, Ireland, and the USA.Created automation test by Selenium and CI/CD by Jenkins for regression test, reduced repeated manual test tasks by 80%. Tech Stack: J2EE, Rest API, JSCore, JQuery, JSON, Shell, JUnit, Selenium, Git, JIRA, Jenkins, Linux, Agile. Digital China (Si-Tech) information Technology Ltd, Beijing, China Software Engineer Sep 2009 Apr 2013 Worked as a full-stack engineer and the owner of 4 projects. Built online services for telecom companies like China Mobile.Led a team of 5 engineers and developed NGBOSS Customer Service System to provide online services for mobile companies.Managed requirements and documented specifications for all phases. Reduced the customer issue resolution time by 50%.Intensely involved in onsite support and interacted with customers in a fast-paced and high-pressure DevOps environment. Tech Stack: Spring, Struts, Hibernate, JQuery, Ajax, JSON, Web Services, PL/SQL, Oracle, UML, Linux/Unix, Tomcat, WebLogic. EDUCATIONCalifornia State University, San Bernardino Masters degree in Computer Science Mar 2018 Beijing University of Chemical Technology Electronic Engineering Jan 2008 |