Leif Theden
System Engineer at O'Reilly Auto Parts
Illinois, United States
Summary
🤩
Rockstar🎓
Top SchoolLeif Theden is a seasoned system engineer with 15 years of hands-on experience building cloud-native backend systems and large-scale monitoring and automation for enterprise environments. Currently at O’Reilly Auto Parts, he architects and automates store deployment, patching, and monitoring across 60,000 endpoints using Ansible, Terraform, Zabbix, TimescaleDB, and Django-backed tooling. He’s fluent in Python, Java, Kotlin and has shipped resilient ETL, media-processing, and API systems at ExecVision while improving CI/CD and live DB migrations. A pragmatic advocate for ownership, transparency, and coding hygiene, Leif pairs a deep appreciation for design patterns and TDD with practical ops skills—reducing downtime via targeted early-warning systems and rewriting search to cut site latency. He contributes to open-source game projects as a full-stack developer, enjoys exploring algorithms, and brings cross-cultural experience with Mandarin and international teaching and sales roles.
15 years of coding experience
15 years of employment as a software developer
Mandarin Chinese, Mandarin Chinese at National Taiwan Normal UniversityBA, Geographic Information Science and Cartography, BA, Geographic Information Science and Cartography at Augustana College, Rock Island, IllinoisStillman Valley High School
English, Chinese
Stackoverflow
85reputation
3kreached
5answers
2questions
Github Skills (10)
state-management10
engine10
game-engine10
pygame10
python10
pyglet6
framerate6
chipmunk6
rendering6
pymunk6
Programming languages (4)
Github contributions (5)
Tuxemon/Tuxemon
Nov 2015 - Dec 2022
Open source monster-fighting RPG.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:23 releases, 690 reviews, 908 commits in 7 years 2 months
Contributions summary:Leif contributed to the core game logic, modifying the `Control` class, which manages the game loop and state transitions. They made significant changes to game state handling, including dynamically loading and instancing game states. The user also worked on improving the usability of the game, fixing a bug where menus would open on the wrong index. They also added code for player interactions.
2d-gamegamefightingrpggame-development
bitcraft/fighter-framework
Dec 2014 - Feb 2021
Contributions:3 commits, 2 pushes in 6 years 3 months
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