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 Experience of PHP, ideally with frameworks such as Symfony, Laravel or Yii 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 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 50 creative experts from various fields. We focus on authenticity, individual talent development and open communication. We build on respect, trust and r esponsibility. As an innovation-driven company, we invest in new ideas. We know that the best results are achieved as a team. We make mistakes, but we learn from them. We are open and courageous for new paths. Our DNA is to create sustainable solutions with a commitment to excellence. We analyze our projects carefully in advance. That's why we deliver what we sell and keep our promises. Our advice is honest and customer-oriented. Join us on our exciting journey in what is probably the most important and forward-looking area - software development - as a full-time Fullstack Developer (m/f/d) - Software Development If you are interested in a wide-ranging portfolio of projects, want to continuously develop yourself and enjoy working independently and responsibly, please contact us at recruitingfreshcells.de. We look forward to hearing from you About us What can you expect at freshcells? Designing, developing, and maintaining e-commerce applications is our business. Cutting-edge technologies, customers who want more than average, and a fun, vibrant team of over 40 web experts aged 20 to 50 from five countries – plus seven office dogs. We also have a stylish office and rec room on the spacious premises of a former carpet factory in the heart of Dusseldorf. We are vibrant and want to stay that way, and we always look forward to welcoming new colleagues. You should be able to communicate in English. German would be an advantage, but it’s not necessarily required. We are not a hire-and-fire company; we prefer to quench our thirst with a cold drink after work. You’d make a great addition to our team? Then check out our current vacancies to see where we’re currently expanding.