Timo Schilling
Lead Developer at Zaikio
Essen, North Rhine-Westphalia, Germany
Summary
🤩
RockstarTimo Schilling is a Lead Developer based in Essen, Germany with 15 years of experience delivering backend-focused solutions and leading engineering teams. He combines hands-on Ruby/Rails expertise with product-minded leadership, currently guiding development at Zaikio after senior and executive roles at COMPEON and Zoom7. An active open-source contributor, Timo has improved core Rails components and popular libraries such as Devise, Mongoid, and ActiveAdmin—work that emphasizes performance, compatibility, and security. He’s comfortable across the stack, having also shipped frontend improvements for embedded/HomeKit projects, and he routinely prioritizes testability and code clarity. Colleagues rely on him to turn tricky performance or integration problems into maintainable, well-tested solutions.
15 years of coding experience
4 years of employment as a software developer
German, English
Stackoverflow
3,023reputation
160kreached
114answers
0questions
filter
top-5%
ruby-on-rails
top-5%
Github Skills (52)
application-framework10
ruby-rails10
javascript10
css10
app-framework10
rspec10
authentication10
user-authentication10
rails10
ui-design10
mongodb-database10
ruby10
uid10
activeadmin10
front-end-development10
Programming languages (15)
Github contributions (5)
activeadmin/activeadmin
Apr 2014 - Jan 2019
The administration framework for Ruby on Rails applications.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 2 reviews, 635 commits in 4 years 10 months
Contributions summary:Timo primarily contributed to the Active Admin framework, focusing on improving its core functionalities. Their work involved refactoring and code reduction in various areas of the framework, including form builders, batch actions, and view components. They implemented new features and tests for pages and filters, as well as addressing XSS vulnerabilities in the modal dialog.
ruby-on-railsrails-applicationsrailsadministrationarbre
mongoose-os-apps/shelly-homekit
Jan 2021 - Jan 2023
Apple HomeKit firmware for Shelly's
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:87 reviews, 93 commits, 114 PRs in 2 years
Contributions summary:Timo primarily contributed to the frontend of the project, implementing new features and improving the user interface. The user added support for configuring and controlling power state LEDs, updated the UI with new elements for valve control, and simplified frontend development for local testing. Additional changes included refactoring JavaScript code, enhancing the UI with string templates, and improving mobile layout, indicating a focus on frontend development and user experience.
homekitfirmwarerokusmarthomeswitches
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