Johann Rocholl
Site Reliability Engineer at Google
Seattle, Washington, United States
Summary
👤
Senior🎓
Top SchoolJohann Rocholl is a Site Reliability Engineer with 20 years of experience building scalable web services and cloud infrastructure, currently on the Google Analytics backend SRE team in Seattle. He blends deep systems and server administration expertise (Linux, Debian/Ubuntu, Apache, PostgreSQL) with strong software craftsmanship in Python, Django, and distributed systems. An early entrepreneur, he founded Browsershots and NXdom, demonstrating a knack for practical, user-facing distributed services and domain tooling. Johann is an active open-source contributor, with notable work on pycodestyle and embedded firmware for 3D printers (Marlin), and has hands-on hardware/mechanical design experience through a portable delta 3D printer project. He favors open-source stacks and has a track record of turning performance and scalability requirements into reliable production systems. Trained with a Diplom in Computer Science from the University of Stuttgart, he combines academic grounding with broad full-stack and operational experience.
19 years of coding experience
10 years of employment as a software developer
Diplom, Computer Science, Diplom, Computer Science at University of Stuttgart
Stackoverflow
23reputation
8kreached
0answers
1question
Github Skills (25)
openscad10
atmel10
python10
testing10
firmware10
enforcement10
pep10
3d-printing10
3d-models10
coding-style10
arduino10
c-language9
cad9
sys9
regular-expression9
Programming languages (4)
Github contributions (5)
jcrocholl/kossel
Aug 2012 - Jan 2015
Mini Kossel portable delta robot 3D printer.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:170 commits, 2 pushes in 2 years 4 months
Contributions summary:Johann's contributions focused on developing the mechanical components of a 3D printer using OpenSCAD. They designed and refined various parts, including frame elements, a carriage, and a retractable leveling probe, iterating on designs based on printing and functional requirements. The user demonstrated skills in 3D modeling and component design for a specific hardware project, modifying designs through multiple commits and detailed code changes. The commits also demonstrate familiarity with mechanical constraints of the project.
deltarobotics3d-printerprinterrobot
PyCQA/pycodestyle
Oct 2006 - Sep 2010
Simple Python style checker in one Python file
Role in this project:Back-end Developer
Back-end DeveloperContributions:106 commits in 4 years
Contributions summary:Johann's commits primarily involve the development and enhancement of the `pycodestyle` project, a Python style checker. They focused on implementing checks for various aspects of code style, including indentation, whitespace, line length, and import formatting. The contributions include refactoring the codebase, incorporating new checks for Python 3000 deprecations, and integrating a regression test suite. The changes demonstrate a strong understanding of Python code formatting standards and the ability to implement automated style checks.
linterpythonstyle-checkercheckerstyle-guide
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