Kevin Herklotz-Senior Frontend Engineer (freelance)
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Experience
Senior Frontend Engineer (freelance)
Ricardo
- Helping my former employer to deliver new search related features faster
Sabbatical
Senior Frontend Engineer
Ricardo
Frontend Engineer
Ricardo
Junior Frontend Engineer
Ricardo
- Biggest marketplace in Switzerland (~1.2M active users per week)
- My main focus was 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.
- 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
- Accessibility improvements
- Mentoring other Frontend developers
- AB tests using LaunchDarkly
- Tools: Asana, Notion, VSCode, Github, Launchdarkly, Google Analytics
Work and Travel
- Built own blog with React 16, Webpack 4, Jest, ESLint, Stylelint, SCSS
Frontend Developer
move elevator GmbH
- Created an own framework with ECMAScript 6 and SCSS based on Bootstrap 3 for client Coca Cola and implemented several websites using it
Web Developer
Heimrich & Hannot
- Created websites with Contao, PHP, HTML, LESS and jQuery
Work and Travel
- Volunteered on farms, for handicraft businesses and families
IT System Administrator
Fraunhofer research institute IVI
- First contact with web development during creation of an intranet with Joomla
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Retail, Professional Services, Agriculture, and Arts and Crafts.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Production.
Languages
Education
University of cooperative education Dresden
Diploma in Engineering (BA) · Information technology · Dresden, Germany
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Kevin is based in Küssnacht, Switzerland.
Kevin speaks the following languages: German (Native), English (Advanced).
Kevin has at least 12 years of experience. During this time, Kevin has worked in at least 9 different roles and for 4 different companies. The average length of individual experience is 1 year and 2 months. Note that Kevin may not have shared all experience and actually has more experience.
Based on recent experience, Kevin would be well-suited for roles such as: Senior Frontend Engineer (freelance), Sabbatical, Senior Frontend Engineer.
Kevin's most recent position is Senior Frontend Engineer (freelance) at Ricardo.
In recent years, Kevin has worked for Ricardo.
Kevin is most experienced in industries like Information Technology, Retail, and Professional Services. Kevin also has some experience in Agriculture and Arts and Crafts.
Kevin is most experienced in business areas like Information Technology, Product Development, and Production.
Kevin has recently worked in industries like Information Technology and Retail.
Kevin has recently worked in business areas like Information Technology and Product Development.
Kevin holds a Master in Information technology from University of cooperative education Dresden.
The availability of Kevin needs to be confirmed.
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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