João Siebel is a Full Stack Engineer based in Berlin with a decade of experience building web applications and a Bachelor's in Computer Science. He has spent the last six years focused on JavaScript, Node.js and React, shipping user-facing features and backend tooling across startups and product teams. João contributed to the well-known open-source web conferencing project BigBlueButton, working on HTML5 client UI improvements and backend fixes that improved stability and audio testing. At Movinga he led features for a Twilio Flex + Salesforce call center that increased daily calls and reduced dropped calls through automated dialing and answering-machine detection. Comfortable across front-end components, backend services and performance/security fixes, he blends practical product impact with open-source collaboration.
10 years of coding experience
12 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Universidade do Vale do Rio dos Sinos
A complete web conferencing system for virtual classes and more!
Role in this project:
Full-stack Developer
Contributions:23 reviews, 395 commits, 173 PRs in 4 years 1 month
Contributions summary:João primarily contributed to the BigBlueButton HTML5 client, demonstrating a strong focus on front-end development, specifically within the user interface and related features. Their commits show involvement in component-level changes, including the modification of existing UI elements, adding new features like tooltips, and fixing UI-related bugs. Additionally, they addressed back-end related issues, such as fixing code that addressed audio test and other functionality.
Contributions:24 PRs, 249 pushes, 216 branches in 6 years 3 months
javascriptnodejsconferencingweb-conferencing
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.