Alex Haynes
Founding Engineer at OuterSignal
New York, New York, United States
Summary
👤
Senior🎓
Top SchoolAlex Haynes is a founding engineer and seasoned full-stack software developer with 10 years of experience building production systems in NYC, most recently focusing on an insurance underwriting platform at Two Sigma and launching OuterSignal. He combines a BSE in Computer Science from the University of Pennsylvania with minors in fine arts, math, and data science, blending technical rigor with creative problem-solving. Alex has driven backend and networking work—contributing to the Python libp2p implementation and implementing core stream, swarm, and connection refactors—demonstrating deep systems and distributed-systems expertise. His background spans high-growth startups (Seek AI, acquired by IBM) and enterprise environments, shipping real-time data pipelines and responsive product features. A former TA for graduate-level operating systems and networks courses, he brings both mentorship and low-level systems intuition to product-focused engineering.
10 years of coding experience
8 years of employment as a software developer
Perry-Lecompton High SchoolBachelor of Science in Engineering (BSE), Computer Science, Bachelor of Science in Engineering (BSE), Computer Science at University of Pennsylvania
English, Spanish
Github Skills (8)
asynchronous10
protocols10
python10
networking10
async10
libp2p10
implement10
asyncio10
Programming languages (6)
Github contributions (5)
libp2p/py-libp2p
Oct 2018 - May 2019
The Python implementation of the libp2p networking stack 🐍 [under development]
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 81 commits, 45 PRs in 6 months
Contributions summary:Alex primarily contributed to the implementation of the libp2p networking stack in Python. Their work involved creating and modifying the stream and swarm components, including stream I/O interactions, and the addition of listen functionality. Further contributions included fixing merge conflicts and refactoring raw connection. This indicates a focus on core networking functionality.
pythonpython-implementationp2pnetworkingunder-development
alexh/Backgrounds
Mar 2018 - Oct 2020
Selections of desktop backgrounds for each season
Contributions:1 release, 16 PRs, 14 pushes in 2 years 8 months
for-eachseasondesktopselectionsbackgrounds
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