Senior Engineer, FullStack, Retail Media/AdTech Solutions (m/f/d)
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. 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. 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: 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. 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. Mobility: We provide our employees with a fully costed Deutschland Ticket which can be used at any time. Personal development: Grow! We support and encourage your individual development through various in- and external trainings. Vacation: 30 days paid vacation per annum (plus another day on Rosenmontag) and the option to take unpaid vacation of up to 10 days (after one year working with us). 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.
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