Josiah Carlson
CTO Founder LiminalNetwork at Python / StructD / Redis / Redshift / Architecture Consultation / Technical Author / Speaker
Los Angeles, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJosiah Carlson is an applied theoretical computer scientist turned startup CTO and serial founder with 18+ years building high-performance distributed systems, databases, and production APIs from Los Angeles. He founded StructD (a Redis-compatible daemon) and Liminal Network (logistics APIs), and previously led architecture and data engineering efforts at companies including hCaptcha, Color, and ChowNow. Author of Redis in Action and an active open-source maintainer, he routinely bridges deep algorithmic thinking with pragmatic system design—optimizing startup velocity while keeping production robustness front and center. His work spans low-level C/C++ and protocol design through Python, Go, and cloud-native tooling like Docker and Kubernetes, often focusing on parallel/distributed runtimes and high-coverage testing. A seasoned speaker and consultant, he has a track record of turning research proofs-of-concept (e.g., transactional Redis ideas) into real-world builds and advising teams on performance and reliability. Though rooted in industry, he retains an academic bent and plans to return to teaching to train the next generation of engineers.
17 years of coding experience
14 years of employment as a software developer
Bachelor of Arts - BA, Computer Science Major, Mathematics Minor, Bachelor of Arts - BA, Computer Science Major, Mathematics Minor at Macalester CollegeUniversity of California, Irvine
Stackoverflow
727reputation
336kreached
18answers
2questions
Github Skills (15)
maintenance10
python10
redis10
code-cleanup10
debug9
error-handling9
debugging9
lua6
key-value-store6
nodejs6
orm6
nosql6
postgresql6
database6
enums6
Programming languages (7)
Github contributions (5)
josiahcarlson/redis-in-action
Jan 2013 - Jan 2023
Example code from the book
Role in this project:
Back-end Developer
Back-end DeveloperContributions:11 reviews, 101 commits, 46 PRs in 10 years 1 month
Contributions summary:Josiah primarily contributed to bug fixes and code improvements within the Redis in Action project. They addressed issues in several Python code examples, correcting argument names, fixing code logic, and enhancing code structure. Key changes include fixes for exception handling, bad code listings, string/integer comparisons, and code cleanup. The user also added an errata file to the repository.
kotlinjavapython
josiahcarlson/parse-crontab
Oct 2011 - Jan 2023
Parse and use crontab schedules in Python
Contributions:1 review, 41 commits, 8 PRs in 11 years 4 months
pythonschedulespython3crontabparse
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