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# Senior Fullstack Engineer (H/U/M/A/N) full-time (remote/hybrid)

- **Company:** freshcells systems engineering GmbH
- **Location:** Düsseldorf, Germany (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), PHP (Programming Language), Agile Methodology, Cascading Style Sheets (CSS), Continuous Integration, Data Structures, Laravel, Node.Js, OpenShift, Performance Tuning, Next.js, Symfony, TypeScript, Web Services, Yii PHP Framework, Docker Swarm, ReactJS, Software Security, Vue.js, Containerization, AngularJS, Kubernetes, Non-relational Database, Graphql, Front End Software Development, Docker, Jenkins
- **Published:** November 4, 2026
- **Apply:** https://www.adzuna.de/details/5951876633

## About the Role

* Very good knowledge of Node.JS
 * Strong knowledge of ES 6 JavaScript as well as extensive knowledge of frameworks and libraries such as reactJS, vue.js and/or Angular
 * Sound experience with relational or non-relational databases
 * Good knowledge of data structure design
 * Competences in consuming and creating web services based on ReST and especially GraphQL
 * Know-how in performance optimization
 * Basic knowledge of HTML and CSS is helpful
 * Experience with agile development in a team
 * Hands-on experience with automated software testing
 * Basic knowledge in API security
 * Fluent in English

Nice to have:

 * Experience of PHP, ideally with frameworks such as Symfony, Laravel or Yii
 * Experience with containerization technologies such as Docker etc.
 * Experience with container orchestration tools like, i.a., Kubernetes, OpenShift, or Docker Swarm
 * Knowledge of designing and adapting software to be twelve factor applications
 * Knowledge of continuous integration via tools like Jenkins
 * Experience with Next.js
 * Experience with TypeScript

All people are welcome here, regardless of gender, age, sexual identity, origin, religion, ideology, with or without a disability. The main thing is that you fit in with us.

If you are interested in a wide-ranging portfolio of projects, want to continuously develop yourself and enjoy working independently and responsibly, apply with the button on this page.

## Description

* Develop and maintain backend APIs using Node.js/TypeScript
 * Implement complex frontend behaviors with React
 * Work across a shared, client-customizable codebase
 * Recognize emerging patterns, craft reusable abstractions, and refactor responsibly
 * Influence structure, testing, and performance in the codebase
 * Contribute to technical decision-making-not just execute tickets