Mark Roberts
Software Engineer at Vercel
Berlin, Germany
Summary
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Rockstar🎓
Top SchoolMark Roberts is a software engineer and technical leader with 14 years of experience building developer-facing APIs and real-time systems, currently shipping at Vercel after co-founding Propel Data Cloud to make in-app analytics on ClickHouse simple. He brings deep telecom and WebRTC expertise from a long tenure at Twilio—work that included Twilio Video SDK and Super SIM/Programmable Wireless—and meaningful open-source contributions to projects like sip.js and node-webrtc. Comfortable across backend systems, GraphQL, and analytics pipelines, he designs tools that help teams serve data reliably at scale. Based in Berlin, he pairs a pragmatic engineering approach with a creative background in New Genres, which surfaces in thoughtful API and UX decisions.
15 years of coding experience
16 years of employment as a software developer
New Genres, New Genres at San Francisco Art InstituteBS, Computer Science, BS, Computer Science at University of Chicago
Stackoverflow
41reputation
2kreached
0answers
1question
Github Skills (17)
javascript10
node-js10
sip10
sips10
javascripts10
webrtc10
c-language9
voip9
c-programming-language9
typescripts8
typescript-types8
typescript8
typescript28
typescript38
tetris6
Programming languages (22)
Github contributions (5)
node-webrtc/node-webrtc
Mar 2014 - Jan 2021
node-webrtc is a Node.js Native Addon that provides bindings to WebRTC M87
Role in this project:
Back-end Developer
Back-end DeveloperContributions:30 releases, 2 reviews, 548 commits in 6 years 11 months
Contributions summary:Mark focused on adding and improving WebRTC features to the Node.js native addon, "node-webrtc." Their work included adding support for getStats, adding braces to code, and enhancing the codebase to handle different OS X compatibility issues. They also made improvements to the handling of RTCDataChannel and enhanced test coverage.
node-jsn-apiwebrtcjs-nativenodejs
onsip/SIP.js
Jun 2015 - Jun 2016
A simple, intuitive, and powerful JavaScript signaling library
Role in this project:Back-end Developer
Back-end DeveloperContributions:16 commits, 13 PRs, 37 comments in 11 months
Contributions summary:Mark significantly contributed to the `onsip/sip.js` repository by implementing new features related to keep-alive functionality. They added configuration options, methods for sending and managing keep-alives within the Transport and UA classes, and refactored the code to emit "notify" events from Session. Furthermore, the user whitelisted supported option tags and made adjustments to allow additional Supported option tags. These changes demonstrate the user's expertise in enhancing the library's functionality and handling SIP messages.
javascriptwebrtcintuitivesipvoip
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