Daniel Grobelny
Available for new projects

Daniel Grobelny

Frontend Developer & AI Engineer

Since 2007, I have been building ambitious frontends for companies such as Deutsche Post, Volkswagen, and Eurowings. Today I combine that frontend experience with agentic engineering to create high-quality, robust, and maintainable web interfaces faster.

About

Frontend craft, amplified by agentic engineering

My core discipline is frontend: clean architecture, resilient components, precise implementation, strong user experience, and code that remains understandable and maintainable months later.

Since 2007, I have worked on production web interfaces in demanding environments. At Interdiscount & Microspot, we built an early React SPA in European e-commerce. At RTL+, I worked in a fully distributed team. At Deutsche Post (E-POST), I experienced the move from waterfall to agile product teams. At Eurowings, my POC led to the decision to rebuild the booking flow as an SPA.

For me, agentic engineering is not a replacement for craftsmanship, but leverage: I use AI-assisted workflows to improve frontend architecture, code quality, testing, refactoring, and delivery — with the goal of building high-quality, long-term maintainable frontends faster.

Frontend Engineering

ReactAngularVueNext.jsNuxt.jsTypeScriptRedux

Frontend Quality

Design SystemsArchitectureTestingAccessibilityMaintainabilityPerformanceUX Precision

Delivery & Collaboration

CI/CDGitVercelAEMProtobufSCRUME-Commerce

Agentic Engineering

CodexClaudeOpenAIAutomationCode AgentsLLM WorkflowsAI Tooling

18+

Years of Experience

50+

Projects

3

Enterprise Clients

AI

Agentic Engineering

Projects

Selected Work

Probat SE Logo

Probat SE

Intensive introduction to Angular through a professional training course at Angular-Schule. Immediately followed by direct application in an ambitious new development project: the 40+ year old control software for industrial machines was to be rebuilt from scratch — as a modern, web-based system with its own design system, for both touch panels and desktop.

TypeScriptAngularDesignsystemFigma
schrittweiter GmbH Logo

schrittweiter GmbH

Development of a brandable ChatGPT application based on the OpenAI Assistant API. Clean separation of layout and logic enables rapid white-labeling for different clients. Next.js, ChatGPT API, Vercel.

TypeScriptReactNext.jsChatGPT APIVercel
CHECK24 Logo

CHECK24

Senior Frontend Developer in the cruise comparison team. Responsible for the payment area: integrating payment providers, API interfaces, and frontend components for desktop and mobile.

TypeScriptReactNext.jsProtobufTailwind CSS
RTL Logo

RTL

Development of an HbbTV VOD application based on web technologies for various Smart TV platforms. Migration of Teletext applications to modern web applications.

HbbTVJavaScriptSmart TV
Eurowings Logo

Eurowings

Integration of a booking flow as a Single-Page Application into the AEM CMS. After a successful POC with Nuxt.js, full implementation with Vue.js.

Vue.jsNuxt.jsAEM
Interdiscount Logo

Interdiscount

Relaunch of Interdiscount.ch within the Nexum AG team, based on the proven Microspot.ch codebase. Responsive e-commerce frontend with a modern technology stack.

ReactReduxE-Commerce
Microspot Logo

Microspot

Frontend development for the Swiss online retailer Microspot.ch. Building and maintaining the e-commerce platform with a modern technology stack.

ReactReduxE-Commerce
E-POST (Deutsche Post AG) Logo

E-POST (Deutsche Post AG)

Frontend development within the denkwerk team for the logged-in area. Modular HTML/CSS components based on the Zend Framework. Later transitioning to an agile team structure (SCRUM).

PHPZend-FrameworkJavaScriptSCRUM

Contact

Let's talk

I help teams build and modernize complex frontends, and use AI-assisted workflows to develop them more productively.

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