Senior Fullstack Developer (H/U/M/A/N) full-time

Intro Why us? freshcells systems engineering GmbH is a software service provider based in Düsseldorf with a dynamic team of over 40 creative experts from various fields. We focus on authenticity, individual talent development and open communication . 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 make mistakes , but we learn from them . We are open and courageous for new ways . Join us on our exciting journey in what is probably the most important and forward-looking area – software development – as a Senior Fullstack Developer (m/f/d) in full-time onsite or remote. Our offer to you: Flex time for early risers and night owls Flexible home office days Company pension scheme with employer contribution Subsidy for the \“Deutschlandticket\“ Advantage portal with offers in online stores and branches of various brands High-end equipment for private use too A secure and long-term workplace Regular feedback, team meetings & retrospectives Room for your own ideas and personal development Digital training courses, freely available to every employee Support with relocating processes, as well as free German courses for newcomers Joint activities such as summer and winter parties, monthly company breakfast, etc. A dog-friendly working environment Tasks 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 Requirements 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 Closing 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, get in touch with us: recruiting((at))freshcells(.)de. We look forward to hearing from you!