Alice Z.

Prysm offers a suite of collaboration software called Prysm Application Suite enabling interactive devices and enhancing overall user experience. As a member of a 6-person scrum team, integrated the critical component of audio conferencing into the product suite. During the research phase, built and tested prototypes with Node and Express for multiple potential vendors, including Twilio, Pexip, Polycom, BlueJeans, and RingCentral. Presented technical reviews of suitability and potential challenges before deciding to use Twilio as the initial conferencing provider. On the server, used Twilio’s REST API to create sub-accounts and access tokens for clients, respond to conference call requests with Twilio Markup Language which routes callers to the appropriate conference room and identifies to Twilio webhook addresses, and update participant statuses in response to triggered webhooks. On the web client, used Twilio’s WebRTC Javascript library and backend APIs to setup communication channels between the client and Twilio servers. Built frontend logic using React and Reflux, implemented a generic interface containing user controls and API adapters to minimize the effort of integration with other vendors in the future. Wrote unit tests in the Jest and Mocha frameworks with 100% coverage of business logic. The test cases were integrated into the TeamCity CI and deployment process. The scrum team ran on a 2-week sprint cycle with daily audio conferencing standup and retrospective meetings that improved development efficiency and communication between remote teams.