Zichang Su

Experience

• 

  Fudan University

  Sept 2015 - Jun 2017

  Research Assistant

  Worked as a research assistant at Center for Micro&Nano System of Fudan University:  Designed a new type organic photodetector with plain structure; Fabricated the photodetector through professional process including organic semiconductor processing, vapor deposition, spin-coat; Collected data with multiple electronic meters and analyzed; Finished an article (Organic semiconductor/water interfaces for photoelectrical viscosity sensing) and published in Electrochemistry Communications (Volume 95, Oct. 2018). Show less

• 

  Voicegain

  Sept 2019 - Apr 2020

  Software Engineer

  1. Interactive voice response broker  Developed Spring Boot applications (client and server) serving as a proxy for connections from UniMRCP to Voicegain speech recognizer in the cloud Proxy receiver provided Web API with multiple services for proxy management; Used TCP (Java IO, NIO, AIO) for control channel, and customized UDP (Java NIO) for real-time audio streaming; utilized various Java ExecutorService for multi-thread handling; Utilized RSA and CHACHA encryption to secure data during transmission; Instrumented performance monitoring with Micrometer and published data to InfluxDB; Developed test tool to simulate traffic of multiple concurrent clients for maintenance; Proxy sender was packaged with Unimrcp server as a docker-compose; 2. Website API backend services  Services such as database querying for InfluxDB and Prometheus, Json/XML parsing, video captions processing (VTT, SSRT, and TTML), file processing with Apache FreeMarker, etc; Show less

• 

  Schweitzer Engineering Laboratories (SEL)

  May 2020 - Feb 2022

  • Software Engineer

    Jun 2021 - Feb 2022

  • Associate Software Engineer

    May 2020 - May 2021
• 

  Microsoft

  Feb 2022 - now

  Software Engineer