Senior Full Stack Developer | React · Vue.js · Next.js · Node.js · AWS | 8+ Jahre Erfahrung | 100% Remote
Aktualisiert am 21.04.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 21.04.2026
Verfügbar zu: 100%
davon vor Ort: 0%
React
Vue.js
AWS
Node.js
Java
PostgreSQL
Strapi
HeadlessCMS
GitLab
CI/CD
DevOps
Docker
React Native
Flutter

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

5 Monate
2025-12 - heute

Developing and maintaining an AI-powered SaaS platform

Senior Full Stack Developer (Freelance) Vue 3 NestJS
Senior Full Stack Developer (Freelance)
  • Developing and maintaining an AI-powered SaaS platform for video bots in an agile remote team.
  • Built an embeddable AI avatar chat plugin shipped to production.
  • Collaborated closely with product and backend teams to deliver features iteratively.
Vue 3 NestJS
AIThink UG
Remote
7 Monate
2025-10 - heute

Building a veterinary and pet owner portal

Senior Full Stack Developer (Freelance) Vue 3 SignalIO
Senior Full Stack Developer (Freelance)
Side Project
  • Building a veterinary and pet owner portal featuring real-time video, chat, and PWA functionality.
  • Delivering responsive, production-ready interfaces from Figma designs.
Vue 3 SignalIO
Rosypet
Remote
7 Monate
2025-05 - 2025-11

Designed and built a Bitcoin price comparison platform

Senior Full Stack Developer Vue 3 Nuxt 4 Express.js ...
Senior Full Stack Developer

Personal Project

  • Designed and built a Bitcoin price comparison platform, enabling users to find products payable in Bitcoin or with Bitcoin payment discounts.
  • Engineered a complex automated web crawling pipeline using Crawl4AI and Python to aggregate and index product and pricing data at scale.
  • Integrated Algolia for fast, relevant full-text product search.
  • Independently delivered end-to-end: frontend, backend, infrastructure, and deployment.
Vue 3 Nuxt 4 Express.js Python Crawl4AI Algolia
GoSpendl
3 Monate
2025-02 - 2025-04

Migrated billing integration from Billomat API

Senior Full Stack Developer React Next.js TailwindCSS ...
Senior Full Stack Developer

  • Migrated billing integration from Billomat API to InvoiceNinja API, improving reliability for approximately 1,300 users.
  • Reduced recurring code review issues by 23% by introducing ESLint, Husky, and lint-staged across 5 repositories ? establishing quality and security best practices across the team.
  • Built and optimised a GitLab CI/CD pipeline including automated testing and deployment stages.
  • Implemented AWS monitoring and observability tooling; applied security hardening to improve production stability.

React Next.js TailwindCSS Node.js AWS Lambda GitLab CI/CD
L1R1 Technologies GmbH
Remote
5 Monate
2024-09 - 2025-01

Developed reusable React component library

Senior Full Stack Developer React TailwindCSS Vitest ...
Senior Full Stack Developer

  • Developed reusable React component library and resolved critical bugs across existing codebases.
  • Translated complex Figma designs into responsive, pixel-perfect, production-ready interfaces.
  • Improved frontend performance, reducing page load times by 26% for approximately 1,600 monthly active users.

React TailwindCSS Vitest Playwright
SmartAgency GmbH
Remote
3 Jahre 10 Monate
2020-07 - 2024-04

Productive B2B e-commerce and SaaS platform

Senior Full Stack Developer React Next.js Vue 2/3 ...
Senior Full Stack Developer

  • Long-term engagement on a productive B2B e-commerce and SaaS platform in an agile, cross-functional team with product, backend, and DevOps stakeholders.
  • Developed and maintained complex React and TypeScript frontend functionality, implementing unit and integration tests throughout.
  • Led technical migrations and refactoring initiatives, reducing technical debt and bug incidence across multiple product areas.
  • Designed and maintained Node.js REST APIs following security best practices including authentication, authorisation, and input validation.
  • Mentored two junior developers through structured knowledge transfer: code reviews, pairing, and documenting best practices in development, testing, and deployment.

React Next.js Vue 2/3 Nuxt 2/3 TypeScript TailwindCSS Node.js Java Spring Boot AWS Bitbucket CI
Heiland GmbH
Hamburg / Remote
8 Monate
2019-11 - 2020-06

Full-stack delivery of client projects

Full Stack Developer
Full Stack Developer
Full-stack delivery of client projects using Laravel REST APIs and Docker-based CI/CD pipelines for approximately 1,200 users.

upljft GmbH
Hamburg
1 Jahr 9 Monate
2018-02 - 2019-10

Developed mobile and web applications

Software Developer
Software Developer
Developed mobile and web applications; maintained high-volume messaging systems processing approximately 300,000 messages per month.
Otto Group Solution Provider
Hamburg

Aus- und Weiterbildung

Aus- und Weiterbildung

Certifications
  • React Senior Developer
  • Vue.js Senior Developer

Position

Position

Senior Full Stack Developer

Kompetenzen

Kompetenzen

Top-Skills

React Vue.js AWS Node.js Java PostgreSQL Strapi HeadlessCMS GitLab CI/CD DevOps Docker React Native Flutter

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Full Stack Developer with 8+ years of experience building and delivering production-grade web applications and SaaS platforms in fully remote environments. Specialises in React, Next.js, and Node.js with deep expertise in REST API design, authentication, authorization, and security best practices (CORS, Rate Limiting, XSS, SQL Injection prevention). Experienced in full project lifecycle delivery - from architecture and development through testing (unit, integration, E2E) and deployment via CI/CD pipelines. Proven ability to mentor developers, establish best practices, and collaborate closely with cross-functional stakeholders to translate complex technical requirements into clean, maintainable solutions.


Key Skills

Backend:

  • Node.js
  • NestJS
  • Express.js
  • REST APIs
  • Middleware
  • Authentication
  • Authorization
  • Python


Frontend:

  • React
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • TailwindCSS
  • Tanstack Query
  • React Hook Form
  • Zod, Vue.js (2 & 3)
  • Nuxt.js (2 & 3)
  • PWA


Security:

  • CORS
  • Rate Limiting
  • XSS Prevention
  • SQL Injection Prevention
  • Security Best Practices


Testing

  • Unit Testing
  • Integration Testing
  • Penetration Testing
  • User Acceptance Testing
  • Vitest
  • Playwright


Cloud & DevOps:

  • AWS (Lambda, EC2, Elastic Beanstalk)
  • Docker
  • GitLab CI/CD
  • GitHub Actions
  • Bitbucket CI


Practices:

  • Agile
  • Scrum
  • Technical Mentoring
  • Knowledge Transfer
  • Code Review
  • Clean Code
  • Performance Optimisation

Einsatzorte

Einsatzorte

Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

5 Monate
2025-12 - heute

Developing and maintaining an AI-powered SaaS platform

Senior Full Stack Developer (Freelance) Vue 3 NestJS
Senior Full Stack Developer (Freelance)
  • Developing and maintaining an AI-powered SaaS platform for video bots in an agile remote team.
  • Built an embeddable AI avatar chat plugin shipped to production.
  • Collaborated closely with product and backend teams to deliver features iteratively.
Vue 3 NestJS
AIThink UG
Remote
7 Monate
2025-10 - heute

Building a veterinary and pet owner portal

Senior Full Stack Developer (Freelance) Vue 3 SignalIO
Senior Full Stack Developer (Freelance)
Side Project
  • Building a veterinary and pet owner portal featuring real-time video, chat, and PWA functionality.
  • Delivering responsive, production-ready interfaces from Figma designs.
Vue 3 SignalIO
Rosypet
Remote
7 Monate
2025-05 - 2025-11

Designed and built a Bitcoin price comparison platform

Senior Full Stack Developer Vue 3 Nuxt 4 Express.js ...
Senior Full Stack Developer

Personal Project

  • Designed and built a Bitcoin price comparison platform, enabling users to find products payable in Bitcoin or with Bitcoin payment discounts.
  • Engineered a complex automated web crawling pipeline using Crawl4AI and Python to aggregate and index product and pricing data at scale.
  • Integrated Algolia for fast, relevant full-text product search.
  • Independently delivered end-to-end: frontend, backend, infrastructure, and deployment.
Vue 3 Nuxt 4 Express.js Python Crawl4AI Algolia
GoSpendl
3 Monate
2025-02 - 2025-04

Migrated billing integration from Billomat API

Senior Full Stack Developer React Next.js TailwindCSS ...
Senior Full Stack Developer

  • Migrated billing integration from Billomat API to InvoiceNinja API, improving reliability for approximately 1,300 users.
  • Reduced recurring code review issues by 23% by introducing ESLint, Husky, and lint-staged across 5 repositories ? establishing quality and security best practices across the team.
  • Built and optimised a GitLab CI/CD pipeline including automated testing and deployment stages.
  • Implemented AWS monitoring and observability tooling; applied security hardening to improve production stability.

React Next.js TailwindCSS Node.js AWS Lambda GitLab CI/CD
L1R1 Technologies GmbH
Remote
5 Monate
2024-09 - 2025-01

Developed reusable React component library

Senior Full Stack Developer React TailwindCSS Vitest ...
Senior Full Stack Developer

  • Developed reusable React component library and resolved critical bugs across existing codebases.
  • Translated complex Figma designs into responsive, pixel-perfect, production-ready interfaces.
  • Improved frontend performance, reducing page load times by 26% for approximately 1,600 monthly active users.

React TailwindCSS Vitest Playwright
SmartAgency GmbH
Remote
3 Jahre 10 Monate
2020-07 - 2024-04

Productive B2B e-commerce and SaaS platform

Senior Full Stack Developer React Next.js Vue 2/3 ...
Senior Full Stack Developer

  • Long-term engagement on a productive B2B e-commerce and SaaS platform in an agile, cross-functional team with product, backend, and DevOps stakeholders.
  • Developed and maintained complex React and TypeScript frontend functionality, implementing unit and integration tests throughout.
  • Led technical migrations and refactoring initiatives, reducing technical debt and bug incidence across multiple product areas.
  • Designed and maintained Node.js REST APIs following security best practices including authentication, authorisation, and input validation.
  • Mentored two junior developers through structured knowledge transfer: code reviews, pairing, and documenting best practices in development, testing, and deployment.

React Next.js Vue 2/3 Nuxt 2/3 TypeScript TailwindCSS Node.js Java Spring Boot AWS Bitbucket CI
Heiland GmbH
Hamburg / Remote
8 Monate
2019-11 - 2020-06

Full-stack delivery of client projects

Full Stack Developer
Full Stack Developer
Full-stack delivery of client projects using Laravel REST APIs and Docker-based CI/CD pipelines for approximately 1,200 users.

upljft GmbH
Hamburg
1 Jahr 9 Monate
2018-02 - 2019-10

Developed mobile and web applications

Software Developer
Software Developer
Developed mobile and web applications; maintained high-volume messaging systems processing approximately 300,000 messages per month.
Otto Group Solution Provider
Hamburg

Aus- und Weiterbildung

Aus- und Weiterbildung

Certifications
  • React Senior Developer
  • Vue.js Senior Developer

Position

Position

Senior Full Stack Developer

Kompetenzen

Kompetenzen

Top-Skills

React Vue.js AWS Node.js Java PostgreSQL Strapi HeadlessCMS GitLab CI/CD DevOps Docker React Native Flutter

Produkte / Standards / Erfahrungen / Methoden

Profile

Senior Full Stack Developer with 8+ years of experience building and delivering production-grade web applications and SaaS platforms in fully remote environments. Specialises in React, Next.js, and Node.js with deep expertise in REST API design, authentication, authorization, and security best practices (CORS, Rate Limiting, XSS, SQL Injection prevention). Experienced in full project lifecycle delivery - from architecture and development through testing (unit, integration, E2E) and deployment via CI/CD pipelines. Proven ability to mentor developers, establish best practices, and collaborate closely with cross-functional stakeholders to translate complex technical requirements into clean, maintainable solutions.


Key Skills

Backend:

  • Node.js
  • NestJS
  • Express.js
  • REST APIs
  • Middleware
  • Authentication
  • Authorization
  • Python


Frontend:

  • React
  • Next.js
  • TypeScript
  • JavaScript (ES6+)
  • TailwindCSS
  • Tanstack Query
  • React Hook Form
  • Zod, Vue.js (2 & 3)
  • Nuxt.js (2 & 3)
  • PWA


Security:

  • CORS
  • Rate Limiting
  • XSS Prevention
  • SQL Injection Prevention
  • Security Best Practices


Testing

  • Unit Testing
  • Integration Testing
  • Penetration Testing
  • User Acceptance Testing
  • Vitest
  • Playwright


Cloud & DevOps:

  • AWS (Lambda, EC2, Elastic Beanstalk)
  • Docker
  • GitLab CI/CD
  • GitHub Actions
  • Bitbucket CI


Practices:

  • Agile
  • Scrum
  • Technical Mentoring
  • Knowledge Transfer
  • Code Review
  • Clean Code
  • Performance Optimisation

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

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