Developed and maintained the industry leading Oracle Marketing Cloud web application (Eloqua) to enhance user experience and scalability; Designed and developed multiple microservices in Spring framework for configuring and sending SMS marketing messages to the contacts.• Developed over 30 React components, like flex table, navigation drawer, interactive card, etc. for the desktop and mobile views of the web application.• Designed and developed multiple REST APIs on the microservices to support various functionalities related to send SMS messages, including manage email campaign, checking delivery status, manage contacts information, etc.• Developed certificate-based authentication strategy which relies on client certificate and private key generated by OpenSSL.• Implemented Kafka message queen framework so that multiple microservices can talk with each other.

Developed front-end and back-end of the web application that provides real-time statistics and predictions about customer flow based on their WiFi connections. Collaborated with Design and Product team in a fully Agile environment. • Optimized SQL database schema and implemented concurrent algorithm to reduce the data processing time for analysis chart by 70%; significantly improved user experience.• Designed and developed multi-threaded background anomaly monitor to detect and alert administrators about system anomalies.• Integrated data fetched from multiple third-party APIs to the application.

Participated in the development of the firmware of Wi-Fi hotspot and LTE gateways using C and C++. Tested code for robustness; executed edge case, usability, and general reliability analysis. Used SVN for version controls. Developed inter-processor communication and synchronization procedure between modem and application processor. • Identified the existing non-optimal procedure, optimize the speed by using a binary search to replace linear search. Reduced battery drain and saved computation time by about 90%.• Developed new scalable procedure for character encoding and decoding that mandated that one function for encoding and one for decoding is needed for each standard, saving at least two days developer time per each use of the new procedure. (Netgear Inc.)• Optimized battery monitoring algorithm and reorganized UI for better user experience.• Fixed more than 10 existing bugs which were related to system robustness and user experience.