Yusong Liu

• Worked with project managers, developers, quality assurance and customers to resolve technical issues.
• Worked with development teams to correct problems and run test scenarios.
• Promoted technical leadership to entry-level and junior engineers in complex enterprise system environment.
• Led software development initiative as subject matter expert and primary point-of-contact for project management staff.
• Card Team Project
• Redesigned the card issuance process using the Camunda workflow engine.
• Technologies Used: Spring Boot, Spring Cloud, Jenkins, JavaScript, MySQL, Kafka, REST API, Redis, GitHub, Maven, MyBatis, ELK.
• Integrated with the internal admin portal using Node.js to manage card processes.
• Integration with Unit21 API
• Developed a service to integrate with Unit21 API.
• Pushed transaction data, generated alerts using Unit21's rules, and ensured data integrity and security.
• Integrated with ComplyAdvantage API to handle and automatically close alerts, saving months of work for hundreds of personnel.
• Compliance Team - World Check Integration
• Integrated with World Check API for user screening.
• Simplified the system using Aspect-Oriented Programming (AOP) and scheduled jobs to rescan tens of millions of users.
• Consumed messages for new scans and relayed results to the KYC team.
• Customer Service Compliance Team Process
• Audited new users and created cases for the compliance team to process.
• Used Matrix for internal process monitoring.
• Sent user data to World Check API and relayed processing results back.
• Online Compliance Rule Deployment
• Managed deployment strategy for new compliance rules across 100+ servers and several hundred thousand online users.
• Implemented user restrictions and monitored logs.

Quantil

• CDN API Service Development
• Developed CDN API services with two servers acting as backups.
• Sent customer configurations to cache machines and implemented a portal for UI operations.
• Technologies Used: Spring Framework, MyBatis, JSP, MySQL.
• Addressed several service outages and data loss incidents.
• Old API Development & Maintenance
• Developed and maintained the old API using Spring Cloud, microservices, and Google Cloud.
• Built the entire system and stored configurations in MongoDB.
• Implemented Single Sign-On, user management, and ELK configuration for log management and monitoring. Eliminated service downtimes.
• New Portal Development
• Developed and maintained a new portal using Node.js.

Led the design and implementation of client-side Java applications.

● Developed a web-based reporting system using a range of technologies

. ● Created a Map UI for client planning, integrating Google Map, jQuery, and AJAX.

● Gathered requirements and enhanced web application components.

● Spearheaded the Online Offer Management Project for HomePath.com.

use hibernate , postgresql , spring mvc

● Architected and oversaw implementation of client-side Java applications.

Developed reusable software components with Java and J2EE technologies. ● Architected, tested, and deployed J2EE applications on WebLogic 6.1.