Kevin Herklotz
Senior Frontend Developer
Erfahrungen
Freelance Senior Frontend Engineer
Clean Code Kevin GmbH
Web development for complex websites. Consulting, teaching, developing, helping with architectural decisions.
Senior Frontend Engineer (Freelance)
Ricardo AG
Helping my former employer to deliver new search related features faster. See my previous job description at Ricardo for more information about my tasks and the tools we used.
Senior Frontend Engineer
Ricardo AG
Biggest marketplace in Switzerland (~1.2M active users per week)
My main focus is code quality, user and developer experience. Over the years the cross functional teams I have been working in were successfully delivering features that resolved in conversion and revenue gains. Working in a remote setup is our daily business, since we have offices in multiple countries.
The technical side:
- Complete rewrite of the whole website to React
- Migration to TypeScript and Next.js
- Multiple Micro Frontends: Next.js, React, Redux, Babel, Webpack, SCSS
- Component library: Storybook, Material-UI
- Backend-For-Frontend: NodeJS, Express, REST APIs
- Testing tools: Jest, (React) Testing Library, Cypress, ESLint
- Analyzing & monitoring Core Web Vitals to improve page speed and SEO
- Researching and evaluating new tools, libraries and frameworks and creating proof of concepts: Next.js, GraphQL, ESLint, react-query, ts-prune, Playwright, …
- Error monitoring: Sentry, Prometheus
Other:
- Accessibility improvements
- Mentoring other Frontend developers
- AB tests using LaunchDarkly
Tools:
- Asana, Notion, VSCode, Github, Launchdarkly, Google Analytics
Frontend Developer
Ricardo AG
Work and Travel New Zealand, Australia, Asia
Work and Travel Company
Working in various different professions (gardener, carpenter, builder, animal care) and living with locals to improve my English.
I also built my own blog with React 16, Webpack 4, Jest, ESLint, Stylelint, SCSS.
Frontend Developer
move elevator GmbH & Co. KG
Implementing Web applications for Coca Cola - Creating an own framework with ECMAScript 6 and SCSS based on Bootstrap 3 for our client Coca Cola and implementing several Websites using it.
Tools:
- Jira
- Confluence
- Webstorm
- Bitbucket
- Grunt
- Bootstrap
- NPM
- Twig
Frontend Developer
Heimrich & Hannot GmbH
Creating websites with Contao, PHP, HTML, LESS, and jQuery.
Work and Travel
Work and Travel Company
Volunteering on farms, for handicraft businesses, and families.
IT System Administrator
Fraunhofer Institute for Transportation and Infrastructure Systems IVI
First contact with web development during creation of an intranet with the CMS Joomla.
Zusammenfassung
I'm a dedicated Frontend Developer who works as a Freelancer in Switzerland.
I really love clean and maintainable code, because I think it is a huge time and cost saver in the long run. I love to set up all the required tools to achieve a smooth developer experience.
In my previous position at ricardo.ch I was the main driver for those tools. I improved how we test, so we ended up with much more meaningful tests. I also love doing reviews, because it helps me and others to grow.
If you want to know more about me, please reach out to me, I'm very happy to answer all your questions.
Sprachen
Ausbildung
University of Cooperative Education, Dresden
Dipl. Ing. (equivalent to Master) · Information Technology
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