Frontend Developer React, React Native, JavaScript/TypeScript
Aktualisiert am 03.12.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 01.01.2025
Verfügbar zu: 100%
davon vor Ort: 40%
React
JavaScript
TypeScript
React Native
Node.js
next.js
REST
GraphQL
TailwindCSS
Cypress
Playwright
Jest
PostgreSQL
Firebase
supabase
MongoDB
CI/CD
DevOps
Git
German
native
English
fluent

Einsatzorte

Einsatzorte

Braunschweig (+100km) Hamburg (+20km) Berlin (+20km)
Deutschland
möglich

Projekte

Projekte

2024: Build next.js web app
Role: Fullstack Developer (Co Founder)
Customer: On request
Place of Work: Hamburg


Tasks:

  • Build next.js web app, React Native iOS & Android apps and backend for Prop Tech Startup. Web app with server-side authentication, TailwindCSS + shadcn for styling and Tanstack table + Tanstack query for performant data fetching & rendering
  • Developed extensive data schema in PostgreSQL with user authentication + authorization including a sophisticated role model with Postgres row-level security (RLS) to serve data efficiently for both clients (PostgREST).

2024: Server components and custom server-side authentication

Role: Freelance Frontend Developer
Customer: intuitive.ai GmbH

Place of Work: Hamburg


Tasks:

  • Build next.js app for AI startup. Server components and custom server-side authentication using Keycloak with JWT
  • Tailwind CSS + shadcn for styling. Close collaboration with backend developers on the REST API and documentation via OpenAPI Specification

2022 - 2023: Development for legacy system migration

Role: Frontend Developer / Lead Developer
Customer: Lichtblick SE

Place of Work: Hamburg


Tasks:

  • Lead Developer for legacy system migration
  • Migrated successfully to turborepo and next.js with styled components
  • Integrated Contentful GrapQL Content API
  • Introduced CI/CD workflow including e2e tests with production deployments under 2 minutes

2020 - 2022: Partial online shop migration

Role: Frontend Developer
Customer: ABOUT YOU SE & CO. KG

Place of Work: Hamburg


Tasks:

  • Partial online shop migration from React with Redux and MobX to a lean monorepo with React, TypeScript, Tanstack Query and gRPC
  • Implemented custom SSR and code splitting with loadable components. Monitored and improved core web vitals
  • Contributed to CI/CD with GitLab CI

Aus- und Weiterbildung

Aus- und Weiterbildung

1 Monat
2019-03 - 2019-03

Business Information Systems (Wirtschaftsinformatik)

B.Sc., TU Braunschweig
B.Sc.
TU Braunschweig

Position

Position

Software Engineer

Kompetenzen

Kompetenzen

Top-Skills

React JavaScript TypeScript React Native Node.js next.js REST GraphQL TailwindCSS Cypress Playwright Jest PostgreSQL Firebase supabase MongoDB CI/CD DevOps Git

Produkte / Standards / Erfahrungen / Methoden

Profile:

Software Engineer with over 8 years of expertise across various industries, specializing in JavaScript, particularly TypeScript and React.js. I?ve had opportunities to step into leadership roles and contribute to technical direction while remaining focused on hands-on development.


Frontend:

  • JavaScript
  • Typescript
  • React
  • React Native
  • next.js
  • expo
  • Tailwind CSS
  • styled components
  • Tanstack query/table/router


Backend & DB:

  • Node.js
  • Supabase
  • Firebase
  • PostgreSQL
  • MongoDB


Testing:

  • Unit/Integration: Jest, React Testing Library
  • e2e: Playwright, cypress, Detox


DevOps:

  • GitHub actions
  • GitLab CI
  • MS Azure DevOps netlify
  • vercel


Other:

  • GraphQL
  • REST
  • gRPC
  • Contentful
  • Scrum
  • Kanban

Einsatzorte

Einsatzorte

Braunschweig (+100km) Hamburg (+20km) Berlin (+20km)
Deutschland
möglich

Projekte

Projekte

2024: Build next.js web app
Role: Fullstack Developer (Co Founder)
Customer: On request
Place of Work: Hamburg


Tasks:

  • Build next.js web app, React Native iOS & Android apps and backend for Prop Tech Startup. Web app with server-side authentication, TailwindCSS + shadcn for styling and Tanstack table + Tanstack query for performant data fetching & rendering
  • Developed extensive data schema in PostgreSQL with user authentication + authorization including a sophisticated role model with Postgres row-level security (RLS) to serve data efficiently for both clients (PostgREST).

2024: Server components and custom server-side authentication

Role: Freelance Frontend Developer
Customer: intuitive.ai GmbH

Place of Work: Hamburg


Tasks:

  • Build next.js app for AI startup. Server components and custom server-side authentication using Keycloak with JWT
  • Tailwind CSS + shadcn for styling. Close collaboration with backend developers on the REST API and documentation via OpenAPI Specification

2022 - 2023: Development for legacy system migration

Role: Frontend Developer / Lead Developer
Customer: Lichtblick SE

Place of Work: Hamburg


Tasks:

  • Lead Developer for legacy system migration
  • Migrated successfully to turborepo and next.js with styled components
  • Integrated Contentful GrapQL Content API
  • Introduced CI/CD workflow including e2e tests with production deployments under 2 minutes

2020 - 2022: Partial online shop migration

Role: Frontend Developer
Customer: ABOUT YOU SE & CO. KG

Place of Work: Hamburg


Tasks:

  • Partial online shop migration from React with Redux and MobX to a lean monorepo with React, TypeScript, Tanstack Query and gRPC
  • Implemented custom SSR and code splitting with loadable components. Monitored and improved core web vitals
  • Contributed to CI/CD with GitLab CI

Aus- und Weiterbildung

Aus- und Weiterbildung

1 Monat
2019-03 - 2019-03

Business Information Systems (Wirtschaftsinformatik)

B.Sc., TU Braunschweig
B.Sc.
TU Braunschweig

Position

Position

Software Engineer

Kompetenzen

Kompetenzen

Top-Skills

React JavaScript TypeScript React Native Node.js next.js REST GraphQL TailwindCSS Cypress Playwright Jest PostgreSQL Firebase supabase MongoDB CI/CD DevOps Git

Produkte / Standards / Erfahrungen / Methoden

Profile:

Software Engineer with over 8 years of expertise across various industries, specializing in JavaScript, particularly TypeScript and React.js. I?ve had opportunities to step into leadership roles and contribute to technical direction while remaining focused on hands-on development.


Frontend:

  • JavaScript
  • Typescript
  • React
  • React Native
  • next.js
  • expo
  • Tailwind CSS
  • styled components
  • Tanstack query/table/router


Backend & DB:

  • Node.js
  • Supabase
  • Firebase
  • PostgreSQL
  • MongoDB


Testing:

  • Unit/Integration: Jest, React Testing Library
  • e2e: Playwright, cypress, Detox


DevOps:

  • GitHub actions
  • GitLab CI
  • MS Azure DevOps netlify
  • vercel


Other:

  • GraphQL
  • REST
  • gRPC
  • Contentful
  • Scrum
  • Kanban

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

Das Freelancer-Portal

Direktester geht's nicht! Ganz einfach Freelancer finden und direkt Kontakt aufnehmen.