(Senior) Java Cloud Engineer (m/f/d)

SIXT is in the middle of a transition from a car rental company to one of the world’s leading mobility providers. With our ONE app we have successfully expanded our traditional rental business to a unified mobility offering including car sharing and ride hailing. Based on our in-house IoT telematics platform SIXT ConCar, we are currently enhancing our fully digital, premium self-service customer experience. We are searching for a senior Java (Spring) developer that has experience with our SIXT Tech stack or similar technologies. Our Kubernetes-based Microservies platform runs on AWS using Apache Kafka for high-volume, near-realtime event processing. We gain insights out of our data using AWS Athena and apply AI approaches and technologies. SIXT Tech offers multiple open positions and developer profiles • Engineering market-changing mobility solutions. Knowledge of the vehicle routing problem space or other geo-optimization problems is of advantage, but not required. • Specalization in our IoT / Telematics platform SIXT ConCar. Excitement for embedded systems (you do play with Rasberry Pies, don’t you?) and automotive systems (you CAN speak car?) are welcome for this role, but not required Apply now, join our journey and become a part of the SIXT family.


  • You will be working in an agile team designing, building and evolving our mobility products or IoT platform
  • You develop backend services in a cloud environment with modern microservices
  • You will understand and constantly challenge the status quo of your business domain and find pragmatic tech solutions
  • You question and optimize processes and implementations. You come up with suggestions for improvement, put these into a solid technical concept, while you collaborate intensively and make decisions within a team
  • You take full ownership of the product and services in your domain with a “you build it, you run it” attitude


  • You have experience in a technology sophisticated environment such as building cloud-native applications, solving scalability challenges, designing event-driven solutions - ideally in a startup dynamic setting
  • You are experienced in designing software in complex domains and are have successfully applied approaches such as DDD
  • You have strong development and architecture experience in Java and you have proven experience in building cloud-native applications, Strong experience in the development of a custom Java application in on a Cloud Platform, preferably with Spring
  • You have good understanding of event-driven platforms, RESTful web services, gRPC services and Message Brokers, preferably Apache Kafka
  • You have got experience in working with containers and container orchestration and monitoring systems, preferably Docker, Kubernetes, Prometheus and Instana


In addition to the obligatory table football, driving simulators, and ping-pong table, our two dedicated Feel Good Managers focus on the wellbeing of our SIXT Tech colleagues. Amongst other things they will support you with your relocation, finding accommodation, visa issues and help you to organize team events, Meetups, and Townhalls. Our offices have different sizes, you will definitely find something according to your preferences. We follow no dress code. As a member of the SIXT-Family, you get attractive car rental offers as well as access to our large employee benefit portal where you find attractive offers for traveling, shopping and more. During breakfast, lunch, and dinner our high-quality restaurant offers daily changing meat, fish and vegetarian dishes, as well as a salad bar and freshly-baked pizza. Our coffee lounge for meeting and relaxing is opened the whole day. COME AS YOU ARE and DO WHAT YOU LOVE: Join our 650 IT colleagues and apply now (in English or German preferred)!