• Built model validation framework to validate 20+ pricing models and generate report for validation result. Java, R• Building various business reports using Tableau to enable business users to analyze risk data at real time. • Building generic reporting framework to allow users to dynamically define a report by specifying data source, business entity, dimensions to slice and dice data, aggregators for data in each basket, and representation type, etc. and persist the report description in xml file. A report generator can then read the report description and generate report on demand. Java• Use ML to analyze large volume of securities for exceedance. Pandas, sklearn.

• Building serverless application to provide product attribution and indexing service on demand. Writing terraform config using HCL to deploy components like lambda, API Gateway, S3, etc. Java, AWS• Building serverless application to enrich product data on demand. Writing serverless framework config (YAML) using DSL to deploy components like lambda, Step function, S3, etc. Python, AWS

• Build application for Chase client to collect payment from their customers. Java, Spring boot, Angula• Build pcx API gateway with Spring Security combined with JWT (Json Web Token)• Trouble shoot and analyze performance issue using DynaTrace, Oracle SQL Developer tuning tool, Apache and Tomcat logs etc. Improve performance from application code efficiency, resource pooling, to SQL efficiency.• Build Alexa skill as a PoC for adding Amazon as a payment channel.

• Completely designed and developed a brand new billing and accounting system from scratch to replace the legacy system. The new system is running on AWS cloud. Primary languages are Java, Python, PySpark• Developed ETL system for revenue share with PySpark to batch process huge amount of purchase data daily, monthly and quarterly.• Worked on the full life cycle of the entire application from requirements gathering, design, implementation and functional testing. • Designed and migrated on premise DB to AWS cloud

Trade Reporting, Developed trade reporting application and support daily trade reporting to GTR (Global Trade Repository). Primary language in Python• Developed Cirrus system to take trades fed by different source systems from front office and report to GTR in proper format. As of now, report covers almost ten jurisdictions like Dodd Frank, EMIR, etc.• Wrote TDD unit test extensively to cover different scenarios to decide trades are in scope for reporting.• Developed BDD framework by using Lettuce to test the full lifecycle of a trade and outgoing message to GTR is accurate and complete.

Risk analysis, risk report, develop, maintain and support risk management system and front office trading application

Developed interest rate derivatives, fx and fx option applications

Develop CBOE Hybrid trading system

Import & Export iron & steel product in/out China