Senior Engineer, FullStack, Retail Media/AdTech Solutions (m/f/d)

Company Description 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.

About the role:  As a  Senior Fullstack Engineer (m/f/d)  in the  Retail Media Ad Solutions area , you will play a critical role in designing and building high-performance, scalable AdTech solutions that power our growing Retail Media ecosystem. You'll work across the stack, from backend services to customer-facing interfaces, with a strong focus on clean architecture, data performance, and user-centric development.

Working closely with your cross-functional team, you’ll help turn complex business needs into robust, end-to-end technical solutions that deliver measurable impact. About the tech stack: React, Next.js, TypeScript, Node.js, Koa.js, NestJS, MongoDB, Redis, BullMQ, RabbitMQ, Algolia, Docker, Kubernetes (GKE), Google Cloud Platform, CircleCI, ArgoCD, and integrations with modern ad-serving platforms.

Job Description About your tasks:  System Architecture & Engineering:  Develop and optimize  Node.js/TypeScript-based microservices , focusing on performance, modularity, and scalability. Contribute to architectural decisions that improve system maintainability and reliability. Frontend Development:  Build and maintain  React  applications using  Next.js (Pages Router)  and  Material-UI . Implement advanced form logic using  Formik  and  JSONSchema  validation. Ensure exceptional user experiences through responsive, accessible, and high-performance UI.

Data & Messaging Systems:  Integrate and optimize high-throughput data systems using  MongoDB ,  Redis , and  Algolia  for real-time ad delivery and insights. Work with  BullMQ  and  RabbitMQ  to handle reliable, distributed message queuing and background processing. Cross-Functional Collaboration:  Partner with Product, Design, and Analytics teams to deliver end-to-end Retail Media features.

Participate in sprint planning, technical reviews, and solution discovery to ensure engineering is aligned with business goals. Qualifications About you: Strong hands-on skills in  JavaScript/TypeScript ,  Node.js ,  React , and modern web technologies. Deep experience building  scalable microservices  and  frontend applications  in cloud-native environments.

Familiarity with  AdTech  or  Retail Media  platforms (eg such as Kevel, Google Ad Manager, CitrusAd, TopSort) will be looked upon favourably.  Committed to writing  clean, maintainable, and efficient code , with a strong focus on  scalability, testing, and long-term system health . Comfortable working in  Agile/Scrum  teams and contributing proactively to cross-functional initiatives.

A continuous learner who thrives in fast-moving environments and enjoys solving real-world business challenges with technology. Have AI experience, have integrated it into real systems and shipped features with it. Additional Information About your benefits: In order to provide our employees with the best possible support for their individual needs, we offer a wide range of benefits: 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. Mental Health:  Get quick and professional help from psychologists of Likeminded if you feel overwhelmed in private or professional life. Anonymous and free of charge.  Work from Home:  If your job does not require you to be present in t