Michael M.
Senior Frontend Architect
Experience
Senior Frontend Architect
Deutsche Bahn (DB Systel)
- Implemented accessibility audit recommendations for the ICE onboard portal, focusing on screen reader and keyboard usability
- Migrated end-to-end tests from Cypress to Playwright and refactored components to meet accessibility standards
- Introduced Prettier for consistent code formatting
- Technologies: Angular, TypeScript, RxJS, NgRx, Jest, GitLab, Playwright, Cypress, Spring Boot
Frontend Engineer
Deutsche Telekom
- Developed two web portals for configuring service telephone numbers: an admin portal for companies, users, service numbers, feature configurations, and audio uploads, and a customer portal for drag-and-drop call routing, call handling logic, and PDF usage statistics
- Implemented a PDF export feature using a Gotenberg-based microservice in Docker
- Built a shared library for components, services, assets, and state management for consistency and efficiency
- Technologies: Angular, TypeScript, RxJS, NgRx, Formly, Gotenberg PDF, Docker, Jest, GitLab, Microservices, Spring Boot
Senior Frontend Architect
Freelancer
- Developed a dynamic form generator for a web portal at E.ON based on JSON Schema to create intelligent, interactive forms without manual coding
- Implemented features such as copying entire form sections with data, dynamically extending forms, calculating sums and products across input groups, context-based mandatory field logic, filtering select options, complex validation and error messaging, and toggling sections based on user input
- Ensured every form is fully schema-driven, allowing new form variations without custom code
- Conducted unit and component-level testing with Jest and React Testing Library, and full user journey simulations with Cypress
- Introduced large language models (LLMs) like Microsoft Copilot into development workflows
Freelance Frontend Developer
Tennisclub Frankenberg/Sa
- Developed a fully serverless JAMstack website using Gatsby, Netlify, and GraphQL as a cost-free CMS solution
- Stored content in Markdown within a GitHub repository with automated Netlify rebuilds on push
- Integrated Netlify CMS for configurable widgets and authentication for non-technical editors
- Added Netlify Lambda serverless functions and calendar integration for booking tennis courts
- Technologies: JAMstack, Netlify, Gatsby, GraphQL, Markdown, GitHub
Senior Frontend Architect
Inside Services GmbH
Led the complete relaunch of Lufthansa’s intranet web application with a fully responsive design, new component architecture, and model transition layers for legacy content
Implemented server-side caching via AEM Dispatcher and client-side caching with MobX for continuous session experience
Developed reusable UI components and user-focused applications like contact management, user profile administration, and configurable widget column features
Developed two hybrid mobile e-banking apps for BankVerlag: AppTAN (Ionic, Cordova, Angular) with Kobil SDK integration and a biometric login container (Flutter, Dart) supporting Touch ID, Face ID, and PIN
Implemented feature rollout via Fastlane and toggles for white-label mobile apps
Technologies: Adobe AEM CMS, Preact, MobX, Redux, TypeScript, Ramda, Jest, Bitbucket, Flutter, Dart, Ionic, Cordova, Angular, RxJS, Swagger, Kobil SDK, Fastlane
Frontend Engineer
T-Systems Multimedia Solutions GmbH
Developed a lightweight responsive server monitoring web app for E.ON using React frontend with PHP backend and Monitis API
Built a used Smart car search web app for Mercedes-Benz with AngularJS, external API data, filtering, detailed views, and favorites
Created a central component library in Adobe AEM for Henkel’s multi-brand, multilingual CMS architecture, enabling rapid brand site creation through reusable components and editorial workflows
Developed the Telekom Social Network start page with Jive and jQuery Widget Factory, featuring customizable widgets and social interactions, plus an embedding plugin
Implemented content management pages for DHL.de and deutschepost.de using Adobe AEM, interactive calculator widgets, and responsive multilingual accessible design, earning the BIENE Award
Technologies: React, PHP, Monitis API, AngularJS, Adobe AEM, jQuery Widget Factory, Jenkins
Frontend Engineer
Communardo Software GmbH
Developed an accessible content management web application for BARMER GEK using CoreMedia CMS and jQuery with full keyboard navigation for visually impaired users
Technologies: CoreMedia CMS, jQuery
Frontend Developer
XIMA GmbH
Created custom CMS components for Messe Frankfurt using Adobe AEM, ExtJS, Jenkins, and jQuery, with configurable color schemes, interactive maps, and tailored finder applications
Developed a job portal for Vivento Interim Services on Typo3 CMS with LAMP stack and custom extensions, enhanced with jQuery for dynamic interactions
Summary
Enterprise consultant specializing in React/Angular ecosystems, Web Components and frontend architectures with modern CI/CD pipelines. Proven track record helping industry leaders like Deutsche Telekom, Mercedes-Benz, and Deutsche Bahn digitize critical business processes. As an iSAQB-certified architect, I combine deep technical expertise with strategic leadership, guiding teams through complex modernization projects that serve millions of users. Currently exploring the transformative potential of AI-assisted development workflows, particularly excited about programmable tools like Claude Code CLI that enable seamless integration of AI agents into development.
Languages
Education
Hochschule Mittweida | University of Applied Sciences
Diploma in Engineering · Media Technology · Mittweida, Germany
Certifications & licenses
iSAQB Certified Software Architect
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