Gregor A.-Frontend Developer | Web Development | Software Quality
Check rate
Experience
Frontend Developer - Style Developer
Finanzinformatik GmbH & Co. KG
- New development and further development of frontend interfaces for investors, using HTML5, JavaScript, CSS, React, Material UI, and JSTL
Career Break
Private
- Full-time home care for my mother, requiring a high level of organizational and emotional resilience
Frontend Developer - Style Developer
Finanzinformatik GmbH & Co. KG
- Development of responsive web interfaces with HTML5, CSS/LESS, and JavaScript in the Adobe Experience Manager (AEM) CMS
- Implementation of accessible frontends according to WCAG and BFSG guidelines, as well as maintenance of UI components and component libraries
- Collaboration with UX/UI design, backend development, and business departments to improve usability and performance
Senior Frontend Developer
Banbutsu dcp GmbH
- Built a “mobile first” click-and-collect web application for brick-and-mortar retail using Bootstrap, SASS, and JavaScript
- Developed coordinate-based delivery systems and worked closely with the product and design teams
- Used Node.js as the development environment
Senior Frontend Developer
Thalia Bücher GmbH
- Developed native WebComponents (Custom Elements) for the audiobook subscription store using JavaScript, CSS3, and HTML5
- Prototyped with Fractal (Node.js-based static site generator) and built the “Thalia Elements” pattern library
- Implemented responsive “mobile first” UI components with a Webpack build process for high performance
Frontend Developer
Nexum AG
- Frontend development for an online shop using HTML, CSS, and JavaScript
- Building a UI library and reusable components with React.js
- Performing cross-browser testing and working closely with the backend and project teams
Frontend Developer
Civitec Zweckverband Kommunale Informationsverarbeitung
- Creating website templates for municipalities with HTML, CSS, JavaScript, and jQuery, as well as the Zurb Foundation CSS framework
- Developing graphics, SVG icons, and prototypes with Zurb Foundation CLI (Node.js, SASS, Panini, Gulp)
- Advising on accessible and responsive websites, including accessibility best practices
Frontend Engineer
MeinAuto GmbH
- Introducing and building a design system for frontend development, including audits and governance
- Creating a design system with Vue.js and integrating the MeinAuto Pattern Library for consistent UI components
- Developing a template library for dynamic contract documents (PDFs) with Google Puppeteer and “mobile first” websites
Frontend Engineer
REWE Digital GmbH
- Acting as the link between the creative, UX/UI design, and internal development teams
- Creating responsive HTML pages and UI components as a basis for user testing and a pattern library (style guide)
- Developing new modules, features, and applications, as well as functional prototypes with HTML, CSS, and JavaScript
Frontend Developer
Fedelity International
- Developing a single-page application for an investment fund company with Backbone.js, Marionette.js, and jQuery
- Creating templates with Handlebars, HTML, and SASS for consistent frontend design
Frontend Developer
Ströer Media Deutschland GmbH
- Developed various templates in the CoreMedia CMS using ToiScript (Velocity)
- Created frontend tools for content and advertising partners (search, newsletter signup, campaign management)
Frontend Engineer
Plan.Net Connect GmbH
- Built the Zurb Foundation for Emails HTML newsletter framework
- Created newsletter template modules for premium clients (BMW, Lufthansa, Telefónica) with responsive design
Frontend Developer
Namics Deutschland GmbH
- Adapted templates and CSS for the AEM Community module of car manufacturer Mercedes-Benz/Smart
- Implemented with Bootstrap, LESS, and Adobe Experience Manager (AEM) CMS
Frontend Developer
Namics Deutschland GmbH
- Created the white-label frontend for Bosch/Siemens Home Appliances (BSH) online shops
- Responsive design and UI optimization for e-commerce platforms
Frontend Developer
Sedo GmbH
- Relaunched the sedo.com trading platform for international domain trading using HTML5, CSS3, jQuery, and TYPO3 CMS
- Full-stack frontend development and integration with backend systems
Frontend Engineer
NTT Data Deutschland GmbH
- Created and implemented the style guide for the XBID Shipping module (Commodity Exchange) of Deutsche Börse AG using HTML5 and CSS3
- Migrated and integrated the Shipping module with the backend systems (Prague)
Frontend Engineer
NTT Data Deutschland GmbH
- Further developed the style guide for the BMW vehicle diagnostics system ISTA
- Developed frontend requirements and dashboards specific to the automotive industry
Frontend Engineer
Fidion GMBH
- Relaunched the Mainpost portal websites using modern web technologies
Frontend Developer
Etecture GmbH
- Implemented the new “mobile first” corporate website for the direct bank ING-DiBa
- Responsive design, performance optimization, and banking-specific requirements
Web Development Specialist
Deutsche Familienversicherung AG
- Introduced JIRA as an issue tracker and Confluence as the company wiki
- Managed and coordinated external service providers and led technical projects
- Relaunched Integrante (TYPO3), handled on-page SEO, and integrated web technologies
- Developed various websites for cooperation partners (health insurance companies), SEM campaigns with WordPress, and newsletter management (OpenEMM)
- Provided 2nd-level support for website content, rate calculators, and forms, as well as TÜV Süd audits for s@fer-shopping certification
Media Operator
MotionFX GmbH
- Oehl.Net GmbH: Content development for e-learning platforms
- Baumarktwissen.de (Bosch): Creation of web-based training (WBT) for the DIY retail industry
- Nintendo of Europe: Frontend development and media operations for gaming platforms
- Raytheon Professional Services: Frontend development for the automotive e-learning platform
- TripleSense GmbH: Frontend development and interactive media design
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Automotive, Retail, Media and Entertainment, Education, Information Technology, and Banking and Finance.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, Quality Assurance, Marketing, Customer Service, and Project Management.
Summary
Frontend developer with many years of experience developing accessible, semantic, and user-centered web applications with HTML5, CSS3, and JavaScript. Experienced in working with business departments, stakeholders, and UX, design, and backend teams, as well as turning complex requirements into clear, scalable, and maintainable frontend solutions.
Strong practical knowledge of design systems, pattern libraries, component-based architectures, and modern JavaScript frameworks. Additional focus on software quality through test planning, setting up automated tests, test documentation, linting, and build checks.
Experience in the structured and quality-focused use of AI-supported development workflows for research, analysis, implementation, debugging, refactoring, testing, and technical documentation.
Skills
Web Technologies
- Html5
- Css3
- Sass
- Less
- Xml
- Json
- Svg
Programming Languages & Scripting
- Javascript
- Jquery
- Coffeescript
Frontend Frameworks & Libraries
- React
- Vue.Js
- Svelte
- Backbone.Js
- Marionette.Js
- Stencil.Js
Ui/Ux & Components
- Webcomponents
- Custom Elements
- Pattern Libraries
- Responsive Design
- Material Ui
Build Tools & Automation
- Webpack
- Vite
- Gulp
- Grunt
- Node.Js
Cms & Templating
- Adobe Aem
- Contentful
- Typo3
- Handlebars
- Pug
- Jsp
- Jstl
- Markdown
- Toiscript
Layout Frameworks & Static Site Generators
- Bootstrap
- Zurb Foundation
- Semantic Ui
- Assemble
- Fractal
- Vuepress
Special Skills
- Design Systems
- Accessibility (Wcag, Bfsg)
- Accessibility
- Newsletter Frameworks
- Style Guides
- Google Puppeteer
- Istqb Certified Tester
Languages
Education
Bildung in Medienberufen
Training as a Digital and Print Media Designer - Chamber of Industry and Commerce · Digital and Print · Cologne, Germany
Certifications & licenses
Agentic AI: The New Software Paradigm
Web Software Tester + AI
Modern JavaScript Frameworks
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Gregor is based in Flieden, Germany and can operate in on-site, hybrid, and remote work models.
Gregor speaks the following languages: German (Native), English (Advanced), Spanish (Elementary).
Gregor has at least 23 years of experience. During this time, Gregor has worked in at least 7 different roles and for 18 different companies. The average length of individual experience is 1 year and 1 month. Note that Gregor may not have shared all experience and actually has more experience.
Based on recent experience, Gregor would be well-suited for roles such as: Frontend Developer - Style Developer, Career Break, Senior Frontend Developer.
Gregor's most recent position is Frontend Developer - Style Developer at Finanzinformatik GmbH & Co. KG.
In recent years, Gregor has worked for Finanzinformatik GmbH & Co. KG and Private.
Gregor is most experienced in industries like Automotive, Retail, and Media and Entertainment. Gregor also has some experience in Education, Information Technology, and Banking and Finance.
Gregor is most experienced in business areas like Information Technology, Product Development, and Quality Assurance. Gregor also has some experience in Marketing, Customer Service, and Project Management.
Gregor has recently worked in industries like Banking and Finance and Information Technology.
Gregor has recently worked in business areas like Information Technology and Product Development.
Gregor attended Bildung in Medienberufen for Digital and Print.
Gregor has 4 certificates. Among them, these include: ISTQB® Certified Tester Foundation Level 4.0, Agentic AI: The New Software Paradigm, and Web Software Tester + AI.
Gregor is immediately available part-time for suitable projects.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 10 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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