Senior Fullstack Engineer, Remote

freshcells systems engineering GmbH

Senior Fullstack Engineer at freshcells systems engineering GmbH involved in software development. Building and maintaining applications using Node.js, TypeScript, and React.

Posted 5/9/2026full-timeDüsseldorf • 🇩🇪 GermanySeniorWebsite

Tech Stack

Tools & technologies

AngularGraphQLJavaScriptNode.jsReactTypeScriptVue.js

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

Strong knowledge of Node.js
Excellent ES6 JavaScript skills and solid experience with frameworks and libraries such as React, Vue.js, and/or Angular
Practical experience with relational or NoSQL databases
Good knowledge of data modeling and data structure design
Competence in consuming and creating web services based on REST and especially GraphQL
Experience with performance optimization
Basic knowledge of HTML and CSS is helpful
Experience working in agile development teams
Hands-on experience with automated software testing
Basic knowledge of API security
Fluent in English

Benefits

Comp & perks

Employee consulting
Engineering support
Professional development opportunities

ATS Keywords

✓ Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools

Node.jsTypeScriptReactES6 JavaScriptVue.jsAngularrelational databasesNoSQL databasesRESTGraphQL

Soft Skills

technical decision-makingcollaborationinfluenceproblem-solvingcommunication