Tim Abbott
Founder And CEO at Kandra Labs, Inc. (creators of Zulip)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTim Abbott is a seasoned software engineer, entrepreneur, and angel investor with 26 years of experience building high-impact products and teams from startup to scale. He co-founded Ksplice (live kernel updates) and Zulip (organized team chat), led major engineering efforts at Dropbox including a rapid Mercurial-to-Git migration and large-scale test and build optimizations, and now works at Anthropic. A hands-on full‑stack developer, Tim continues to drive core open-source work—most notably as lead developer of Zulip—contributing across server, desktop, mobile, API, and type-stub ecosystems. His background blends deep systems-level expertise (kernel modules and live-patching) with product-minded distributed systems and developer productivity improvements. Based in San Francisco, he pairs MIT-trained technical rigor with an operator’s knack for shipping reliable, scalable software under tight constraints.
26 years of coding experience
8 years of employment as a software developer
MS Electrical Engineering and Computer Science, MS Electrical Engineering and Computer Science at Massachusetts Institute of TechnologyHigh School, High School at Thomas Jefferson High School for Science and Technology
Github Skills (57)
static-typing10
javascript10
typesc10
postgresql10
mobile-development10
python10
electron10
back-end-development10
apidoc10
stubs10
stub10
django10
dynamic-typing10
typescript10
kernel-module10
Programming languages (19)
Github contributions (5)
zulip/python-zulip-api
Aug 2012 - Nov 2022
Python library for the Zulip API.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:66 reviews, 543 commits, 262 PRs in 10 years 4 months
Contributions summary:Tim contributed to the development of the Zulip API, focusing on adding and refactoring API functionality for sending and receiving messages. Their work involved modifying the core `common.py` and `zephyr_mirror.py` files to handle options, message formats, and API calls. The user also worked on refactoring API handling and moving to the API subdirectory, indicating a focus on improving the API's structure and functionality.
python-libraryapipythonpypizulip
zulip/zulip
Aug 2012 - Jan 2023
Zulip server and web application. Open-source team chat that helps teams stay productive and focused.
Role in this project:Back-end Developer
Back-end DeveloperContributions:82 releases, 13759 reviews, 10118 commits in 10 years 6 months
Contributions summary:Tim's commits primarily focus on extracting, refactoring, and refactoring parts of the analytics views codebase in the Zulip server, indicating a back-end development role. Their work involves extracting code into new files, implementing a new user settings endpoint, and migrating database structures for message editing and custom emoji. The user has improved various features of the Zulip server and added new functionalities and indexes to improve performance.
pythonweb-applicationcollaborationzulipjavascript
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