Adam Pritchard
Software Engineer at Proven Security Solutions Inc.
Old Toronto, Ontario, Canada
Summary
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Rockstar🎓
Top School
Top expert inCross-Platform Development and Productivity Tools
Adam Pritchard is a seasoned software engineer with 15+ years building secure, reliable systems from core networking code to user-facing extensions. Based in Toronto, he currently develops censorship-circumvention infrastructure at Psiphon, contributing to proxy servers, configuration management, metrics, and build improvements that enhance tunnel reliability. He co-founded Proven Security Solutions to tackle secure document collaboration, reflecting a long-standing focus on privacy and encryption dating back to his role as a software architect at Sun Microsystems. Adam is an active open-source contributor—his work on the widely used Markdown Here extension improved rendering, high-DPI support, and usability, while his contributions to Psiphon’s core reveal deep backend and networking expertise. Comfortable across the full stack, he pairs pragmatic engineering with security-first thinking and a background in computer science and philosophy from the University of Toronto. A detail that often surprises colleagues: he blends low-level protocol work with UX-minded fixes, shipping improvements that help both stability and real-world user experience.
15 years of coding experience
12 years of employment as a software developer
Honors Bachelor of Science, Computer Science and Philosophy, Honors Bachelor of Science, Computer Science and Philosophy at University of Toronto - University College
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (24)
javascript10
configuration-management10
proxy10
proxy-server10
networking10
go10
proxies10
webextension10
testing9
css9
html9
mozilla8
user-experience8
user-interface8
graphical-user-interface8
Programming languages (16)
Github contributions (5)
adam-p/markdown-here
May 2012 - Sep 2018
Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:15 releases, 881 commits, 43 PRs in 6 years 5 months
Contributions summary:Adam contributed to the Markdown Here extension by implementing new features, fixing bugs, and enhancing the user interface. Their contributions included adding the ability to revert rendering, resolving rendering issues in HTML and code blocks, and integrating a feature for high pixel density displays. They were also involved in improving the structure and functionality of the options page and integrating a forgot-to-render prompt to increase ease of use.
renderfirefoxthunderbird-extensionemailchrome
Psiphon-Labs/psiphon-tunnel-core
Oct 2014 - Apr 2019
Psiphon is an Internet censorship circumvention system.
Role in this project:Back-end Developer
Back-end DeveloperContributions:7 releases, 227 commits, 137 PRs in 4 years 6 months
Contributions summary:Adam primarily contributed to the core functionality of the Psiphon tunnel by implementing proxy servers and configuration management. They added and modified code related to SOCKS and HTTP proxy servers, along with configuration loading, validation, and testing. The user also integrated metrics collection, enhanced the build system, and implemented changes to facilitate server-client communication, which improved the tunnel's reliability and feature set.
golangcensorship-circumventionproxycircumventioncensorship
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