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jahrock/README.md

Hi, I'm Felix

Senior Frontend Engineer

Fullstack Developer

Testing Enthusiast

I develop complex systems that are clear, user-friendly and maintainable, with a focus on frontend architecture, test automation and agile teamwork—both 🌍 and 🏢.


Core Competencies

Frontend Engineering

JavaScript TypeScript

Ember.js React Angular

HTML5 CSS3 SCSS

I work with modern frameworks, rely on clean component architecture, structured documentation and testing by design.
For me, UX collaboration and pixel-perfect implementation are just as important as maintainable codebases.


Testing & Quality

Playwright Cypress Selenium

I have established test automation as an integral part of development.
From unit to E2E tests (including hardware JIGs), I ensure reproducible quality and seamless CI integration.


Backend Development

Python Java Kotlin C# .NET PHP Node.js

MySQL PostgreSQL MSSQL

JSON%20API REST GraphQL

I have solid experience in building APIs, microservices and working with relational databases.
From Java to .NET to PHP, I have worked on projects spanning the full stack, from backend to UI.


Tools & DevOps

OS & Development Environments

macOS Linux Windows

IntelliJ IDEA VS Code Visual Studio


Development & Collaboration Tools

Git GitHub Jira Confluence Slack Microsoft Teams

Storybook Figma Zeroheight Miro

Adobe Experience Manager WordPress


Cloud, Container & CI/CD

Azure DevOps AWS

Docker Podman CI/CD


Companies I have worked for

Gardena – Husqvarna Group

Guild Lead in frontend development for the GARDENA smart system. Integrated native app functions, set up end-to-end tests with hardware JIGS and optimised performance.
Maintained and further developed the design system, automated development and deployment processes and ensured technical quality.


ARGUS Data Insights

Technical Lead Frontend for the ARGUSavenue portal. Led redesign and rebranding initiatives with a focus on quality assurance, modernisation and reduction of technical debt.
Improved build and release pipelines with Azure DevOps and implemented web fonts, icon sets and Elasticsearch-based tools in Angular.


UPC Cablecom → Sunrise

Developer and technical expert in the Customer Care team. Built the new e-care area with Adobe Experience Manager (AEM), integrating a customer forum, multiple REST APIs and database-driven modules such as the mobile coverage map, service status page and the MyUPC portal.


NC AG

Designed and developed customer-specific Web2Print solutions, including the Central Content Database for Kuoni and the DirectMail Print-on-Demand system (PostCard Creator) for Swiss Post.


Finnova AG Bankware

Designed and conceptualised the user interface for the redevelopment of a core banking application, from the initial UX concept to final implementation handoff.


About me

I enjoy working at the intersection of technology, UX and teamwork.
As a former Frontend Guild Lead, I defined cross-functional standards, shared knowledge and strengthened collaboration between UX, backend and testing.
I believe in code quality, transparency and healthy team dynamics—not hierarchies.


Fun Fact

Coffee or mate? I don't need either. Ginger tea is enough to get me going. 🫖


Contact

💬 Discord: jahrock 🌐 Bluesky: jahrock

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