Staff Engineer (m|w|d) - CRM Tech

Reliable data, resilient services and scalable architectures are at the heart of every CRM interaction at idealo. As a Staff Engineer, you'll shape the technical foundation behind identity resolution, subscriptions, data flows, and message delivery while ensuring GDPR compliance and supporting personalized user experiences. This role combines backend engineering, data engineering and architectural leadership . You'll influence how data flows across systems, how services communicate through event-driven architectures, and how technical decisions support idealo's long-term CRM strategy. Working closely with Software Engineers, Data Engineers and Product Managers, you'll help define technical direction across multiple domains. You'll work with Java, Spring Boot, Kafka, Braze, Snowflake and AWS services including Glue, Lambda and S3 in a modern cloud-native architecture . From data ingestion and transformation to customer-facing activation, you'll help build reliable systems that teams across idealo depend on every day. When new CRM capabilities go live, you'll see the direct impact of your work in millions of customer interactions. The position is available in full or part-time. About your new role • Design, implement, maintain, and evolve reliable and scalable software systems and data flows for CRM and user engagement use cases.  • Stay hands-on by designing and developing cloud-native microservices, event-driven applications and backend services with a strong focus on performance, security and operational excellence. • Lead technical initiatives within and across the team to align technical solutions with business needs. • Drive continuous improvements across software development, CI/CD pipelines, cloud infrastructure, observability, and monitoring while evaluating new technologies where they add measurable value. • Mentor engineers through technical guidance, architecture discussions and code reviews, fostering a collaborative engineering culture focused on sustainable technical excellence. Skills & Requirements • You bring extensive experience building cloud-native software systems on AWS and designing distributed, event-driven architectures using Java 17+, Spring Boot, Kafka and modern backend technologies. • You have deep expertise in data architecture, data warehousing, ETL processes and data integration, combined with hands-on experience working with technologies such as Glue, S3 and MongoDB or other NoSQL databases. • You are experienced with containerization and orchestration technologies including Docker and Kubernetes, and are familiar with serverless architectures, AWS Lambda and modern CI/CD practices. • You have a strong understanding of software quality, security and reliability, including authentication, encryption, automated testing and secure software development practices. • You have a proven track record of leading complex technical initiatives, influencing architectural decisions and aligning engineering work across teams without formal people management responsibility. • You take ownership and independently drive topics forward. The Confidence to speak up and challenge ideas constructively, paired with openness to diverse perspectives. At idealo you can expect • You want to further your education? We take your personal development goals seriously and, in addition to our idealo Learning Hub, eLearning offerings (e.g., Udemy), coaching & mediation, we also offer you the opportunity to benefit individually from additional learning and development budget. • And what about the office? Our office in the heart of Berlin offers free organic breakfast, excellent free lunch (vegan and vegetarian), as well as free coffee, lemonades and after-work beer, in addition to the "standard foosball". It also has