We are looking for a skilled & passionate Senior Backend Engineer for Fulfillment Services to become part of our Fulfillment Tech Team. Our team is responsible for efficient and stable system solutions connecting our internal systems with external logistics driven systems, ensuring the processing of thousands of parcels per day and a smooth customer experience. Activities Translate business challenges into scalable technical solutions, collaborating with product managers and other engineers to ensure high-quality design, planning, and delivery. Design, build, and maintain RESTful APIs (internal and external) that power fast, reliable, and frictionless backend services. Apply modern agile methodologies and XP practices, including Test-Driven Development (TDD), pair programming, and continuous integration. Continuously learn and experiment - exploring new technologies, improving system reliability, and evolving our architecture for performance and maintainability. Contribute your ideas and take ownership - we value creativity, flat hierarchies, and quick decision-making that empowers engineers to make an impact. Requirements Technical Skills: Strong, hands-on experience with PHP (Laravel) Proven experience in designing and developing distributed, high-traffic / high-load backend systems. Solid experience with AWS services, especially Fargate/K8S, S3, SNS/SQS, RDS, and Redis. Deep understanding of SQL performance optimization, including efficient query design, data types, indexing strategies, and schema optimization. Demonstrated ability to own services end-to-end - from development and automated testing to deployment, monitoring, and incident response. Strong skills in breaking down complex technical challenges into manageable, maintainable, and easily deployable components. Soft Skills: Hands-on, Self-motivated, responsible, passionate and eager to learn. Can perform complex technical tasks independently Can handle pressure in critical situations (e.g. technical emergencies) by remaining calm and finding pragmatic solutions and clearly communicating these. To be a multiplier of team efforts, ensuring that the results of team work are as expected and are technically sound. Being able to write bullet proof technical concepts based on business requirements. Team Our Fulfillment Tech Team is responsible for efficient and stable system solutions connecting our internal systems with external logistics driven systems, e.g. warehouse management systems and carrier connections. With a great sense for logistical business processes and deep knowledge of our systems they ensure the processing of thousands of parcels per day and a smooth customer experience across the whole order flow with focus on the delivery process. Application Process About the Company The ABOUT YOU Group is an international e-commerce group, organized into different strategic business units: The online fashion store ABOUT YOU represents the Group's business-to-consumer business. With over 13 million active customers, ABOUT YOU is one of the largest online retailers for fashion and lifestyle in Europe and the leading provider of a personalized shopping experience on smartphones. In the award-winning ABOUT YOU app and on aboutyou.com, customers find inspiration and a range of around 750,000 items from nearly 4,000 brands. The Group's business-to-business operations are largely handled by SCAYLE GmbH. SCAYLE offers a modern, cloud-based enterprise shop system that enables brands and retailers to scale their digital businesses quickly and flexibly, and adapt to growing customer needs. Around 300 online stores choose SCAYLE's Commerce technology under a license model, including leading brands and retailers such as Harrods, Manchester United, Deichmann, Fielmann, and FC Bayern. The newest subsidiary of the ABOUT YOU Group, SCAYLE Payments GmbH, complements the Group's portfolio of payment services. The payment service provider received the payment services license from the German Federal Financial Supervisory Authority (BaFin) in October 2024 and is currently being rolled out across various European markets. SCAYLE Payments enables the seamless integration of modern payment solutions and helps to scale customers' digital business models.