Senior Fullstack Engineer, Node.js & React.js (m/f/d)

About the role: • Design and implement complex features across our web-shop, translating business requirements into scalable and maintainable solutions . • Extend and build backend services across domains, ensuring clean interfaces and well-defined API contracts. • Contribute to frontend development using ReactJS , with attention to performance and maintainability. • Create and consume APIs following contract-first principles and ensuring backward compatibility. • Implement scalable asynchronous communication patterns using RabbitMQ . • Identify and address performance bottlenecks, reliability gaps, and technical debt within your scope. • Take full ownership of your features: design, implementation, testing, deployment, and post-release monitoring. • Participate actively in code reviews and architectural discussions , contributing thoughtful technical input. • Support and mentor less experienced engineers through collaboration and example. • Contribute to the continuous improvement of development processes and engineering standards . About You: • You demonstrate seniority through impact, ownership, and sound technical judgment . • You are comfortable working independently on complex tasks while aligning with the broader team architecture . • You have strong experience building and operating scalable services with Node.js and TypeScript. • You have solid expertise in RESTful API design, HTTP semantics, and distributed system fundamentals. • You understand asynchronous communication patterns and event-driven architecture . • You bring a DevOps mindset and are comfortable with Docker, Kubernetes, CI/CD pipelines, and production monitoring. • You proactively identify risks and trade-offs , and communicate them clearly. • You collaborate effectively with product, design, and other engineering teams . • You value open feedback, continuous learning , and shared ownership . About your benefits: In order to provide you with the best possible support for your individual needs - whether it‘s living a healthy life, having enough time for your family, or developing your skills - we offer a wide range of different, site-specific benefits: • Welcome days: We want you to feel at home with us from the very first day. Therefore, we welcome you with our comprehensive onboarding program. • Personal development: Grow! We support and encourage your individual development through various in- and external trainings. • Work from Home: If your job does not require you to be present in the office, we can arrange the place you work from individually - even for up to 20 days a year anywhere in the EU. • Mental Health: Get quick and professional help from psychologists of nilo if you feel overwhelmed in private or professional life. Anonymous and free of charge. • Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Click here to learn more. About Redcare Pharmacy: As Europe’s No.1 e-pharmacy, Redcare Pharmacy is powered by passionate teams and cutting-edge innovation. We strive to create a healthy, collaborative work environment where every employee feels valued and inspired to contribute to our vision “Until every human has their health”. If you’re seeking a career that offers purpose and aligns with your values, join us and begin your #Redcareer today. As the Senior Fullstack Engineer (BE Focused) (m/f/d), you are a highly experienced individual contributor within a cross-functional team, building performant, scalable, and customer-centric web applications used by millions across Europe. You drive complex feature development end-to-end and contribute to architectural decisions, while collaborating closely with peers and stakeholders. You elevate engineering quality through strong technical judgment and ownership. Our Tech Stack: React, Node.js, TypeScript, Next.js, NestJS, Java, Docker, Kubernetes, CI/CD, Google Cloud, RabbitMQ, MongoDB