Mobile.de is Germany's largest vehicle marketplace with about 1.4 million listed cars, trucks, and motorcycles. Both private customers and more than 40,000 registered vehicle dealers use the platform. Including listing exports to the sister platform Kleinanzeigen, mobile.de reaches about 20 million unique users per month (AGMA digital facts; mobile.de and Kleinanzeigen; categories: cars, motorcycles, commercial vehicles, motorhomes; Ø month April 2022 to March 2023). As a "one-stop shop," mobile.de offers not only buying and selling services but also financing and leasing solutions, among others. The company, founded in 1996, is a subsidiary of Adevinta, a globally leading provider of online classifieds portals. mobile.de is part of Adevinta: a global online classifieds specialist and sustainability leader with 25 products in 10 countries. What you’ll do & Who you are For our team in Berlin, we are looking for a Principal Platform Engineer (d/f/m). Our agile team is focused on the core services and capabilities of our platform. If you’re passionate about automotive and user-driven innovation, this is the team for you Reporting directly to your Engineering Manager, you will play an important role in the development and architecture of mobile.de's central applications and capabilities and act at the level of the entire engineering organization. This is a hybrid role, and our office is based in Berlin-Charlottenburg. What you'll do: Define and lead the technical vision for core services and shared capabilities used across Product & Technology. Lead complex projects that enhance the scalability, reliability, and maintainability of our technical landscape. Collaborate with other principal engineers and platform architects to ensure agreement on technical and organizational strategies. Mentor and coach engineers and tech leads, promoting skill development. Implement and monitor engineering metrics. Build relationships across teams to align technical solutions with our goals and organizational priorities. Be an expert and technical leader, influencing engineering culture and shaping our technology direction. Main Responsibilities Design and oversee implementation of critical systems to ensure long-term value. Shape mobile.de's technical strategy and oversee execution Plan and implement technical and architectural strategies for the engineering organisation. Create Architecture Decision Records, communicate the decisions and monitor the execution. Promote cloud-native solutions that meet cross-team needs. Promote engineering excellence through coding standards, testing techniques, and CI/CD (GitHubActions, Jenkins). Partner with platform architects to ensure central services integrate with platform infrastructure. Represent the Core Services team in organization-wide discussions, balancing immediate needs with strategic goals. Qualifications Exceptional communication and leadership skills, with the ability to align and collaborate across teams. At least 10 years of industry experience. Expertise in at least one JVM programming language and knowledge of Spring or React. Knowledge of Golang and JavaScript is beneficial. In-depth experience with modern software architecture approaches and patterns. Advanced knowledge of cloud platforms (AWS preferred), Kubernetes, and infrastructure tools (e.g., Terraform, Helm). Strong understanding of distributed systems, relational and document-oriented databases, and messaging systems. Proven experience in implementing observability tools (e.g., Grafana, Prometheus, Loki) for monitoring and reliability. A proactive, independent, strategic, and collaborative attitude is required to be successful in this role. Fluent in English; German is a bonus. Benefits Life at Adevinta comes with its perks Our Adevintans enjoy the following benefits: An attractive Base Salary Participation in our Short-Term Incentive plan (annual bonus) Work From Anywhere : Enjoy up to 20 days a year of working from anywhere Maybe not from the moonwell why not just make sure you have internet connection A 24/7 Employee Assistance Program for you and your family, because we care ❤️ Win together, lose together is one of our key behaviours. At Adevinta you will find a collaborative environment with an opportunity to explore your potential and grow On top of these, we also provide a range of locally relevant benefits. Wanna know more? Apply and ask our recruiters ✨ Adevinta is an equal opportunity employer and we value diversity. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status or disability status. If you feel like you don’t meet all of the requirements for this role but are interested, please consider applying anyway. Research suggests that women and individuals from underrepresented groups may self-select out of opportunities if they don’t meet 100% of the job requirements. We strongly encourage people from historically excluded groups to apply and look forward to speaking with you.