Scala Developer

Spearheaded the development of a digital asset custody platform, enabling secure handling of $500M+ in digital assets using Spring Boot. Designed and implemented a policy engine that reduced risk-related incidents by 30%, ensuring compliance with regulatory standards. Integrated with three major Ethereum node providers, achieving a 99.9% synchronization success rate for transactions and implementing an automated re-submission mechanism, cutting manual interventions by 50%. Achieved 100% on-time delivery for all deliverable, reducing post-release defects by 40% through 30+ robust Cucumber tests.

Developed and optimized the backend of 35 APIs for Ethereum Layer 2 exchange, processing 10K+ transactions/second with 99.99% uptime. Enhanced the smart wallet backend, supporting 20K+ active users monthly and writing 20+ API documentation pages with Postman test cases. Implement NFT system, including mint, transfer, collection features. Developed NFT metadata layer 2 cache syncing system that reduced metadata query latency by 95%. Develop and integrate with vendors for defi products, including dual investment, grid bot. Using Jenkins and Terraform scripts to deploy services on AWS, perform test on Web and mobile phone using Charls. Debugged and resolved 200+ production issues, reducing incident resolution time by 30% and ensuring client satisfaction. Built a logging and monitoring system on AWS, enabling real-time analytics for 100GB+ daily messages using Fluentd and OpenSearch.

Led intern team build access management platform on GCP, configure 8 VM instances and Linux environment, implemented automatic CI/CD pipeline for Tomcat and provide high availability through load balancer clusters. Develop official website backend with Node express, create 21 REST APIs to communicate with React frontend and ForgeRock IAM platform to realize user register/login/reset password and dashboard features. Using TypeScript to refactor all the JavaScript code to ensure the application robustness and implement OOP. Using JEST to perform unit test and integration test of backend APIs, terminated 15 potential bugs. Collaborate with teammates on Jira and provide well-structured API docs on Confluence, manage and tracking project process and advanced delivery time by 2 weeks.