My tech stack & skills: a comprehensive overview of my technical competencies, the technologies I use, and my qualifications. My focus is on modern frontend development with React, Tailwind CSS, and Headless CMS systems (Craft CMS, Contao), combined with well-considered UI/UX conception, accessible architecture, and agile project methodologies.
Tech Stack & Skills
Languages
Certified Digital Media Specialist (IHK) and Senior Frontend Developer with over 25 years of comprehensive expertise in web and screen design, UI/UX, and component-based frontend architecture. Proven specialist for the interface between sophisticated design and clean technical implementation. Experienced in working with agile methodologies (Scrum, Kanban) as well as modern development and design tools.
Development of high-performance, accessible, and scalable Single-Page Applications (SPA) and web applications. Use of state-of-the-art JavaScript standards (ES6+), React Hooks, Tailwind CSS, and advanced performance optimization for outstanding Core Web Vitals and minimal load times.
Conception and design of user-friendly digital interfaces in Figma. Building consistent design systems with reusable UI components, clear typography hierarchies, and well-considered color tokens for a seamless brand experience across all screens.
Seamless integration of Headless Craft CMS and content management systems via GraphQL and REST interfaces. Structured data modeling, multilingual content management, and modular template architecture for flexible, future-proof publishing workflows.
Strict adherence to DRY and KISS principles for maintainable, self-explanatory code. Implementation of structured component hierarchies, type-safe interfaces, and robust error handling to reduce technical debt over the long term.
Guaranteed functionality and visual precision across all common desktop and mobile browsers. Execution of comprehensive tests for responsive screen sizes, touch gestures, and accessibility standards in accordance with the WCAG 2.1 guidelines.
Development of efficient data flows in complex Single-Page Applications using modern React Hooks, Context API, and asynchronous patterns (Fetch API, GraphQL queries with AbortController to avoid race conditions).
Structured collaboration in interdisciplinary development teams applying agile frameworks such as Scrum and Kanban. Use of modern CI/CD pipelines, versioning with Git, as well as automated webhook deployments.
Building highly maintainable style systems with Tailwind CSS, CSS Custom Properties, and modular CSS rules. This ensures an absolutely consistent visual language that effortlessly controls different color schemes (e.g. Dark Mode).
Development of user interfaces that strictly comply with the Web Content Accessibility Guidelines (WCAG 2.1 Level AA). Implementation of full keyboard navigation, well-considered ARIA labels, dynamic screen reader announcements, as well as optimized contrast ratios.
Seamless integration of external third-party systems, REST APIs, and GraphQL endpoints. Use of asynchronous request handling, robust data validation at system boundaries, as well as the avoidance of race conditions for reliable data flows.
Execution of systematic code reviews within the development team to ensure uniform engineering standards. Use of automated linters, pre-commit hooks, and static code analysis for continuous bug prevention and compliance with high quality criteria.
Structuring complex web offerings and data models according to modern UX principles. Development of intuitive navigation concepts, clear content hierarchies, and well-considered user guidance for a noticeably reduced cognitive load.