Rainer

Über mich

Web and Mobile App Frontend Engineer (Self-taught!). I specialize in React Native, Expo, React.js, and Next.js (TypeScript). My development career for client projects began in 2004 with HTML, CSS, and JavaScript, followed by over a decade in WordPress, Shopify, and other CMS development. I then moved into app development with Ionic (Cordova, Capacitor & AngularJS) and Flutter (Dart), and later immersed myself directly in the React ecosystem (Gatsby, React Native for Web, React.js, React Native, Expo). Before that, I worked in finance, marketing, and startup consulting. My USP is UX, user intent, and lean coding - aka user-first!

Skills

Expert:in

App-Entwicklung

React

Webentwicklung

Progressive Web App

Applications Development

Application Support

Firebase

HTML

CSS

Tailwind CSS

UI Design

TypeScript

JavaScript

UX Design

Google Cloud Platform

Android

iOS

Next.js

Applications Integration

Fortgeschritten

Gatsby

Ionic

Flutter

Usability Testing

Git

Github

GitLab

CI/CD

Berufserfahrungen

Senior Frontend Web & App Developer · Vollzeit

Senior Frontend Web & App Developer for an IT service agency as employee · Internet und Informationstechnologie

2024 — heute

Frontend Developer team member for a major client working on a monorepo for a webshop with React.js and Next.js. Developed as Lead Developer up until now, having built 3 React Native apps with Expo for iOS and Android.
Fullstack App & Web Developer (Appreneur/ Solopreneur) · Teilzeit

appamass LLC · Internet und Informationstechnologie

2004 — heute

App Developer Studio for Expo, Next.js, Tamagui, Zod, React Hook Form, React Native SVG, Async Storage, Reanimated, Vercel, Storybook, Stripe, Firebase, React Native for Web, TS, Nativewind (Tailwind), Webpack, React-Spring, React-Navigation, FlashList
Frontend App & Web Developer · Vollzeit

Frontend App & Web Developer for a digital media agency as freelancer · Internet und Informationstechnologie

2020 — 2024

Frontend Developer specializing in creating, maintaining, and deploying SMB client projects. Developed websites, shops, and landing/marketing pages with a focus on SEO and mobile-first design. Completed 9 WordPress projects (using Divi, Elementor, WPBakery), managed the maintenance and optimization of 5 Shopify stores, and developed 6 React Native mobile apps and 9 Ionic/Capacitor/Cordova projects. Primarily responsible for all app store distributions.

Alle Berufserfahrungen ansehen

React + React Native Frontend Engineer

Über mich

Skills

Berufserfahrungen

Rainer ist Freelancer:in bei Junico