Available to hire
I’m a Senior Frontend Engineer with over 15 years of experience building complex, scalable web applications. My main expertise is Angular and TypeScript, complemented by hands-on experience with React, Vue.js, frontend architecture, state management, API integration, testing and design systems.
I have delivered solutions across automotive, aviation, healthcare, finance, telecommunications and e-commerce, working as a developer, architect, consultant and team lead. What sets me apart is my ability to combine hands-on development with architectural thinking, clear communication and a strong focus on maintainability, performance and user experience. I also use AI-powered development tools extensively to improve implementation, testing, documentation and code quality.
Skills
Language
German
Fluent
English
Intermediate
Spanish; Castilian
Beginner
Work Experience
Senior Frontend Engineer at intervalgroup (INTERVALGROUP)
January 1, 2026 - August 1, 2026Further development and optimization of existing Angular applications in an NX monorepo. Technical leadership and coaching of the frontend team, architecture reviews, introduction of modern frontend architecture and standards. Converted an existing application into a PWA. Introduced repository services, facades, smart/dumb components and derived view models; improved code quality, test coverage and development efficiency via refactoring and process optimization.
Senior Frontend Engineer at INTERVALGROUP
January 1, 2026 - August 1, 2026Further development and optimization of existing Angular applications in an NX monorepo. Responsibilities included technical leadership/coaching, architecture reviews, and adoption of modern frontend standards. Converted an existing application into a PWA and improved maintainability through refactoring (including Repository Services, Facades, Smart/Dumb Components, and Derived ViewModels).
Senior Frontend Engineer at VOLKSWAGEN AG
May 1, 2024 - December 1, 2025Developed an Angular application and integrated it into existing enterprise systems. Responsibilities covered new features, integration into existing modules, and integration with REST services with collaboration through Azure DevOps. Delivered improved architectural stability, optimized build times, and better code quality.
Senior Frontend Engineer at CONDOR FLUGDIENST GMBH
March 1, 2023 - April 1, 2024Enhanced multiple frontend/backend systems and implemented complex data tracking requirements. Worked on data tracking, feature development, refactoring, and modernization of legacy ES5 code. Improved tracking quality, reduced error rate, advanced legacy modernization, and optimized the booking process.
Senior Frontend Engineer at Empiricom / Nexum AG
February 1, 2023 - March 31, 2023Component development and automated testing. Developed React components, created automated tests and improved code quality; increased test coverage and release stability and expanded the component structure.
Senior Frontend Engineer at EMPIRIECOM / NEXUM AG
February 1, 2023 - March 1, 2023Developed React components and implemented automated testing. Improved code quality and increased test coverage to strengthen release stability through a more robust component structure.
Senior Frontend Engineer at CONDOR / DENKWERK
November 1, 2022 - February 1, 2023Modernized and migrated ES6-based A/B tests. Migrated implementations from ES6 to Angular while maintaining existing A/B test behavior, followed by code refactoring. Improved maintainability and performance while integrating legacy behavior cleanly with Angular.
Senior Frontend Engineer at STUDITEMPS GMBH
August 1, 2022 - October 1, 2022Developed a portal connecting students with job opportunities. Built features and state management with Pinia, expanded the component library, improved performance and UX, and established a consistent component model.
Senior Frontend Engineer at IFA SYSTEMS AG
October 1, 2021 - November 1, 2022Developed medical systems and provided frontend architecture consulting. Delivered frontend and backend development, created solution designs, and mentored colleagues. Modernized architecture, improved loading times, standardized processes, and increased productivity.
Senior Frontend Engineer at MEDION AG
September 1, 2020 - March 1, 2021Developed a unified desktop to centralize internal systems. Implemented UI work, integrated internal subsystems, and performed performance optimizations resulting in consolidated platforms, reduced loading times, and improved usability.
Senior Frontend Engineer
March 1, 2020 - October 1, 2022Development of a customer portal and integration of external services including SSO and design system creation using Storybook. (Dates overlap in the provided resume text; details captured from the listed role.)
Senior Frontend Engineer at TCHIBO MOBILFUNK GMBH & CO. KG
March 1, 2020 - October 1, 2022Developed a customer portal and integrated external services. Implemented SSO integration and created a Storybook-based design system, establishing a component library and reducing time to market while improving UX and stability.
Senior Frontend Engineer at 1. FC Köln
February 1, 2020 - August 31, 2020Built a video portal for Bundesliga content including checkout stabilization and error-rate reduction. Still in use today.
Senior Frontend Engineer at 1. FC KÖLN
February 1, 2020 - August 1, 2020Built a video portal for Bundesliga content. Stabilized checkout, reduced errors, delivered a working video platform, and maintained it for ongoing use.
Business Director at brandung GmbH
October 1, 2019 - December 1, 2021Responsible for strategic account management, team organization, project budgeting, and technical quality assurance. Led a multidisciplinary digital team covering frontend, backend, UX, and tracking specialists to deliver high-quality outcomes.
Senior Frontend Engineer at ZEG EG
March 1, 2019 - March 1, 2020Built a cross-platform app for booking e-bikes and electric cars. Released the app successfully, optimized mobile performance, and simplified the booking flow.
Senior Frontend Engineer at ZEG
March 1, 2019 - March 1, 2020Developed a cross-platform booking app for e-bikes and electric cars. Delivered successful release, optimized mobile performance, and simplified the booking flow.
Senior Frontend Engineer at Uniklinik Köln
January 1, 2019 - March 31, 2019Developed a PWA for document management. Optimized performance, stabilized offline functionality, improved UX and integrated with existing systems.
Senior Frontend Engineer at UNIKLINIK KÖLN
January 1, 2019 - March 1, 2019Implemented a PWA for document management. Optimized performance, stabilized offline functionality, improved UX, and integrated with existing systems.
Senior Frontend Engineer at Porta Möbel
December 1, 2018 - February 28, 2019Created landing pages and CMS content for e-commerce. Increased conversion, standardized components and improved rendering performance.
Senior Frontend Engineer at PORTA MÖBEL
December 1, 2018 - February 1, 2019Created landing pages and CMS content for e-commerce, increasing conversion. Standardized components and improved rendering performance. Used Storybook as part of the component workflow.
Senior Frontend Engineer at SPORTCAST GMBH
December 1, 2018 - February 1, 2019Integrated a custom video player, reduced loading times, improved buffering behavior, and expanded compatibility across environments.
Team Leader Frontend at brandung GmbH
December 1, 2018 - October 1, 2019Led a frontend team with ownership of architecture, code quality, and CI/CD processes. Introduced modern development standards and mentored team members to improve engineering effectiveness and delivery quality.
Team Leader Frontend at dimeidis GmbH
July 1, 2017 - November 30, 2018Frontend development for digital signage and trade show software. Established modern frontend stacks based on Angular, SCSS and Webpack, and significantly optimized the codebase.
Team Leader Frontend at dime dis GmbH
July 1, 2017 - November 1, 2018Frontend leadership for digital signage and trade show software. Established modern frontend stacks (Angular/SCSS/Webpack) and significantly optimized the existing codebase to improve maintainability and performance.
Frontend Web Developer at meinestadt GmbH
December 1, 2016 - June 1, 2017Developed Angular/ES6-based features for the portal ecosystem, integrated REST APIs, optimized performance, and modernized the UI.
Frontend Web Developer at moneymeets GmbH
March 1, 2016 - November 1, 2016Built a modern Angular application in the FinTech domain. Focused on component development, UX improvements, and quality assurance for stable releases.
Frontend Web Developer at Kienbaum Consultants International GmbH
July 1, 2013 - February 1, 2016Developed internal and external HR tools with a focus on C#, AngularJS, ES5, and SCSS. Worked closely with backend and UX teams to deliver consistent UI and robust functionality.
Senior Frontend Engineer at Freelancer
June 1, 2011 - PresentSenior Frontend Engineer (Freelancer)
June 1, 2011 - PresentProject-based development of modern web applications for large corporations and medium-sized enterprises, with a focus on Angular and TypeScript. Work spans architecture, performance optimization, and consulting/mentoring for frontend teams. Experience includes building maintainable codebases, improving UX, and integrating with enterprise backends.
International Project Manager at ifa Systems AG
June 1, 2005 - May 1, 2010Project management for international healthcare projects, acting as interface between development, medical staff, and customers. This role provided early software development exposure and supported the later transition into engineering.
Education
B.Sc. Media Informatics at Cologne University of Applied Sciences
January 1, 2010 - January 1, 2014IT Systems Management Assistant (IHK) at ifa Systems AG
January 1, 2004 - January 1, 2007B.Sc. Media Informatics at Cologne University of Applied Sciences
January 1, 2010 - January 1, 2014IT Systems Management Assistant (IHK) at ifa Systems AG
January 1, 2004 - January 1, 2007B.Sc. Media Informatics at Cologne University of Applied Sciences
January 1, 2010 - January 1, 2014IT-Systems Management Assistant (IHK) at ifa Systems AG
January 1, 2004 - January 1, 2007Qualifications
Industry Experience
Software & Internet, Healthcare, Financial Services, Retail, Professional Services, Transportation & Logistics, Media & Entertainment, Other
Skills
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