Tyll Weiß
Senior Software Engineer at DB Systel GmbH
Aachen, North Rhine-Westphalia, Germany
Summary
👤
Senior🎓
Top SchoolTyll Weiß is a Senior Software Engineer and architect with 13 years of experience designing cloud-native, event-driven systems and user-focused interfaces. He blends UX roots with backend and DevOps expertise, having led large refactors and serverless API rollouts at companies like TUI, RTL and Otto Group to improve reliability, scalability and developer velocity. A pragmatic coach and hands-on implementer, he has driven adoption of best practices such as federation-based GraphQL, infrastructure presets with Terraform CDK, and observability via DataDog. He’s an active open-source contributor—working on notable projects like the Neos CMS UI and flow-typed typings—bringing attention to code quality, modern front-end patterns and type safety. Based in Aachen, Germany, Tyll combines design sensibility with engineering discipline to turn complex product needs into maintainable platforms. An less obvious strength: he repeatedly pairs product-facing UX improvements with deep architectural change so teams ship faster without accruing long-term technical debt.
13 years of coding experience
14 years of employment as a software developer
Mediengestalter IHK Fachrichtung Konzeption und Visualisierung Grafikdesign, Mediengestalter IHK Fachrichtung Konzeption und Visualisierung Grafikdesign at Medienschule Hamburg Eilbektal
English, German
Github Skills (21)
libstdc10
libc10
javascript10
npm10
lib10
flow-control10
libudev10
work-flow10
flow-typed10
libdispatch10
control-flow10
flowtype10
clib10
react10
content-management-system9
Programming languages (12)
Github contributions (5)
neos/neos-ui
Dec 2015 - Nov 2017
Neos CMS UI written in ReactJS with Immutable data structures.
Role in this project:
Front-end Developer
Front-end DeveloperContributions:876 commits, 278 PRs, 528 pushes in 1 year 11 months
Contributions summary:Tyll primarily focused on implementing UI components using ReactJS for the Neos CMS UI. Their work involved integrating a linting service (xo) and converting files to a new code style. This included significant changes to existing components, indicating a focus on improving the user interface and codebase maintainability, particularly with the integration of a new grid layout and CSS-Modules, a shift towards a more modern development approach.
cmsreactredux-sagaimmutablejsneos-cms
flow-typed/flow-typed
Aug 2017 - Dec 2017
A central repository for Flow library definitions
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:7 commits, 7 PRs, 10 comments in 3 months
Contributions summary:Tyll contributed to the project by adding and modifying Flow type definitions for several npm packages. This included updating existing definitions for React-Redux and providing new definitions for packages like node-version, is-lts, plow-js, and node-polyglot. Additionally, the user added missing color variations to the chalk typings and updated definitions for jest. Their work primarily focused on improving type safety and developer experience within the flow-typed ecosystem.
libdefsflowtypedefinitionscli
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