• Created normalized session control and message processing C++/Java API (dynamic sized and nested grouped message serialization, recovery handling, JSON parser) from different FIX, Binary and API-based exchange protocols• Designed and maintained C++ based asynchronized trading API architecture using thread pool, MPMC queue, message pool, cache warming etc.• Designed Java interface using JNI to call backend C++ service• Created modules to collect and analyze API latency and integrate onload and TCPDirect (Solarflare) to improve performance• Created code and test case generator using Python for dev and test purpose• Set up performance automation and result analyzer using Python (Pandas), Ansible and Grafana

• Enhanced trading engine functionality using ruby-on-rails and RabbitMQ• Designed RESTful API for trading and order management• Used MySQL, Docker, Kubernetes to manage and deploy backend system• Integrated Redis into matching engine to enhance performance of parallel processing

• Designed and developed 12 functional improvement with “Seat AvailabilitySearching Engine Team” using C++, oracle database, bash script• Designed configurable string on ORACLE SQL server and design parse method for airline/city choice and airline terminal display• Designed the display format of airline meal and raw-fare information and accomplished related search filtering and data processing work• Created a batch XML comparing function for the Windows application• Applied Xerces-C++ library to parse XML in message transmission process

• Maintained clients’ data with Excel and MS SQL server• Made the data available to be analyzed from more angle by changing the filtering method and display order of annual market data