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JOB DETAILS

(Senior) Fullstack Developer (m/f/d) full-remote/hybrid in full-time

Companyfreshcells systems engineering GmbH
LocationDusseldorf
Work ModeOn Site
PostedSeptember 30, 2026
About The Company
WE ARE FRESHCELLS We are bound by a shared passion: a love of technology! Our experts from around the globe focus on the Internet of tomorrow all day, every day, creating high-performance solutions for your challenges as part of the digital transformation. GERMAN ENGINEERING SINCE 2005 freshcells systems engineering GmbH is a software and consultancy firm for professional and complex software solutions based in Dusseldorf. Since 2005, Tom Hülser and his team have provided guidance for their customers using the Systems Engineering approach. Proprietor Tom Hülser was early in identifying the potential of applied informatics while at university and founded the company on this basis. Systems engineering is the well from which we draw and forms the core of freshcells. As system engineers, we see ourselves as partners in the creation and continued development of complex, cross-platform, robust systems. Our holistic, digital approach in combination with our technological expertise also contributes to creating real added value for our clients both on the Internet and in intranets. Our multicultural team (16 nations) consists of software architects, UI/UX experts, web designers, application programmers, database programmers, strategy consultants, project managers, technical project managers, scrum masters, product owners and analysts with fundamental expert knowledge and many years of experience. Excellent guidance with a feel-good factor forms the basis for a successful project at freshcells. This is why we are able to count many renowned companies from the tourism, media, consumer goods, chemical, and pharmaceutical industries as our long-term clients.
About the Role

Your mission

  • Development of modern backend applications based on Node.Js
  • Development of modern frontend applications based on React JS
  • Development of APIs based on GraphQL
  • Design and implementation of new features for sophisticated software solutions in cooperation with project management, design, and development departments
  • Writing and maintaining our automated test suites
  • Participation in continuous improvement processes

Your profile

  • 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

Why us?

freshcells systems engineering GmbH is a software service provider based in Düsseldorf with a dynamic team of over 60 creative experts from various fields.


At our company, authenticity, individual talent development and open communication are our focus. We build on respect, trust and responsibility. As an innovation-driven company, we invest in new ideas. We know that the best results are achieved as a team. We do make mistakes, but we learn from them. We are open and bold in exploring new paths.


Join us on our exciting journey in what is arguably the most significant and forward-looking field — software development.


To find out more about us, feel free to visit our website https://www.freshcells.de/en/

About us

freshcells systems engineering GmbH is a software service provider based in Düsseldorf with a dynamic team of over 60 creative experts from various fields.

At our company, authenticity, individual talent development and open communication are our focus. We build on respect, trust and responsibility. As an innovation-driven company, we invest in new ideas. We know that the best results are achieved as a team. We do make mistakes, but we learn from them. We are open and bold in exploring new paths.

Join us on our exciting journey in what is arguably the most significant and forward-looking field — software development.

To find out more about us, feel free to visit our website https://www.freshcells.de/en/
Key Skills
Node.jsReact.jsGraphQLJavaScriptVue.jsAngularREST APIsAutomated testingAgile developmentAPI securityTypeScriptDockerKubernetesNext.jsPHPCI/CD
Categories
SoftwareTechnologyEngineering
Benefits
Individual talent developmentOpen communicationRespectful work environmentTrust-based culture
Job Information
📋Core Responsibilities
Develop modern backend and frontend applications using Node.js, React.js, and GraphQL. Collaborate with cross-functional teams to design new features and maintain automated test suites.
📋Job Type
permanent employee
📊Experience Level
2-5
💼Company Size
45
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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