Staff Engineer, Checkout Platform (m/f/d)

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 start your #Redcareer today. About the role: We are looking for an experienced Staff Software Engineer, Checkout Platform (m/f/d) to play a leading role in designing and building Redcare Pharmacy’s future headless checkout platform. As one of the first key technical hires in this greenfield / 0-to-1 domain , you will have a high level of technical autonomy and the opportunity to shape its architecture and technical foundations from the ground up. Embedded in the checkout team, you will contribute directly to implementation while influencing technical decisions beyond the team. The target architecture is not predetermined: you will help establish the APIs, domain boundaries and technical foundations for a secure and scalable platform that will sit at the heart of Redcare Pharmacy’s future agentic commerce capabilities. About the tech stack: You will work within a Java-based backend environment , combining hands-on engineering with system design and architectural leadership as the new Core Commerce Services domain takes shape. About your tasks: Build and evolve the Core Commerce Services platform: Take a hands-on role in creating scalable, channel-independent checkout capabilities, from early technical discovery and design through implementation and production. Shape the architecture: Define APIs, domain boundaries and integration patterns while making pragmatic decisions around scalability, reliability, security, observability and long-term maintainability. Drive technical alignment: Work across Checkout, Payment and other dependent teams to align technical decisions and integration contracts while maintaining clear ownership boundaries. Mentor and grow engineers: Develop others through pairing, design discussions, code reviews and technical feedback while helping raise engineering standards across the team. Enable future commerce: Partner with Product to translate business needs into scalable technical solutions and establish the foundations for AI-powered assistants, agentic commerce and emerging channels. About you: You bring strong Java and backend engineering expertise and have experience designing and building backend services, platforms and large-scale distributed systems. You remain hands-on and are comfortable contributing directly to production code. You have operated at Staff/Principal level or demonstrated equivalent senior technical leadership , with strong system design and architecture capabilities and the ability to take significant technical ownership with a high level of autonomy. You are comfortable working in a greenfield / 0-to-1 environment , where architecture, APIs and domain boundaries still need to be shaped. You know how to explore options, evaluate trade-offs and turn ambiguity into pragmatic technical decisions. You have a strong track record of mentoring engineers and leading through influence , helping raise the technical level of a team and creating alignment across engineering domains. Experience with headless or traditional checkout, order management, SaaS/platform engineering, e-commerce or marketplaces would be a valuable plus rather than a requirement. 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: 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. Sports: Stay healthy. Profit from a membership (M) package at Urban Sports Club, so that you can take advantage of a huge variety of sport offers. Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Employee discount: You get a 10 % employee discount on all over the counter, beauty and personal care products in our online store & 20 % discount on nu3. Personal development: Grow! We support and encourage your individual development through various in- and external trainings. Corporate pension plan: We offer a company pension scheme and have a dedicated external consultant to offer you the best guidance and advice.