Kevin Herklotz

Senior Frontend Developer

Kevin Herklotz
Küssnacht, Schweiz

Erfahrungen

Sept. 2023 - Bis heute
1 Jahr 9 Monaten
Schweiz

Freelance Senior Frontend Engineer

Clean Code Kevin GmbH

Web development for complex websites. Consulting, teaching, developing, helping with architectural decisions.

Jan. 2022 - Apr. 2023
4 Monaten

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.

Apr. 2021 - Juli 2022
1 Jahr 4 Monaten
Zug, Schweiz
Remote

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
Sept. 2018 - Apr. 2021
2 Jahren 8 Monaten
Zug, Schweiz

Frontend Developer

Ricardo AG

Sept. 2016 - Aug. 2018
2 Jahren

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.

Dez. 2014 - Aug. 2016
1 Jahr 9 Monaten
Dresden, Deutschland

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
Sept. 2014 - Nov. 2014
3 Monaten
Dresden, Deutschland

Frontend Developer

Heimrich & Hannot GmbH

Creating websites with Contao, PHP, HTML, LESS, and jQuery.

Jan. 2014 - Aug. 2014
8 Monaten
Kanada

Work and Travel

Work and Travel Company

Volunteering on farms, for handicraft businesses, and families.

Jan. 2011 - Jan. 2014
2 Jahren 1 Monate

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

Deutsch
Muttersprache
Englisch
Verhandlungssicher
Französisch
Fortgeschritten

Ausbildung

Okt. 2008 - Juni 2012

University of Cooperative Education, Dresden

Dipl. Ing. (equivalent to Master) · Information Technology

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