Badges
Certifications
Work Experience
Backend Engineer, WebRTC, VoIP Specialist
CDYNE Corporation•  January 2020 - September 2022
• Designed and implemented the SIP/VoIP Web Phone with Angular12 and sip.js by using WebRTC • Built and managed the sip server by customizing the Asterisk and configured the WebRTC endpoints and dial plans for both inbound and outbound • Using Django, designed and implemented the backend service to manage the PBX server and stored the server data to PostgreSQL • Worked alongside another developer to implement RESTful APIs in Django that enabled PBX server analytics team to increase reporting speed by 24% • Built a unit testing infrastructure for a web application that reduced the number of bugs reported by the client by 12% month over month using Selenium • Acquired and ingested phone call data, build and maintain data pipelines that led to discovering an opportunity for a new site feature, boosting revenue by 6%
Python and Angular Developer
StoryTagger•  March 2019 - November 2019
• Using Flask and FastAPI, designed and implemented the innovative microservices for social learning web app, and containerized them with Docker • Collaborated with an agile team of 7, used Python scripts to load the video data into AWS Cloud Cassandra database • Worked on building new Angular12 components for the customer-facing web app, which improved the time on page for the average user by 2 minutes • Efficiently deployed and integrated software engineered by team and updated integration/deployment scripts to improve continuous integration practices • Integrated with 3rd party APIs(Sonix AI API) for live caption in video streaming
Full Stack Engineer
FreeCast•  February 2017 - January 2019
• Built cross-browser compatible and accessibility compliant website, resulting in 22% faster load time than industry average • Made complex technical and design decisions for React projects and created the reusable components with React, Redux, and React Hooks • Adapted interface for modern internet applications using the latest front-end technologies • Designed and built the WebRTC server for live streaming, and implemented the frontend for web endpoint with React.js
Python Developer
Rootstack•  May 2014 - October 2016
• Built extensive test coverage for all new features, which reduced the number of customer complaints by 28% • Participated in writing scalable code with a team of 4 interns and 1 developer for applications for a math course • Diagnosed issues causing slow speeds in applications, and documented the process to making the database query system more robust • Communicated with internal teams and stakeholders, working to determine solutions for the user experience • Developed internal tools for text mining, and web crawler for collecting data by Python and SQL
Education
University of Texas at Dallas, Richardson
Computer Science & Engineering, BE•  April 2011 - December 2013
Links
Skills
ryan1001 has not updated skills details yet.