Senior Backend Engineer (f/m/d) 🚀

<p>Created in 2016, Free2move 🚀 simplifies mobility-related uses by offering a wide range of services to satisfy everyone's 🚘 travel needs.<br/><br/>With Free2move, you can rent a city car for shopping or for your stay in Italy 🏖️ or book a car park during your weekend in Paris... all in one click, on our web/mobile platform! 📲<br/><br/>Born from the merger of the Stellantis Group 🚗 and the start-up TravelCar, Free2move, thanks to its agility and its spirit of conquest has managed to establish itself in just few years 🚀 as a reference player to revolutionize the mobility of all travellers.<br/><br/>Having become the #1 reflex for more than 6 million users 👑, Free2move operates in more than 170 countries across 5 continents 🌎 and is available in 30 languages and 26 currencies. 5000 partners trust us and several hundred thousand vehicles are available!<br/><br/>If you want to join a team of +750🏆 experts and bold international projects, then you're in the right place! 🎯<br/><br/>You will evolve in an ultra-dynamic, innovative, agile, internationally-focused structure and integrate our talented ❤️teams♥️, full of ideas and motivation and with multidisciplinary skills, at the crossroads of the digital eco-system and the fast-changing automotive sector.<br/></p><p></p><p>Are you passionate about building scalable, resilient backend systems and working with cutting-edge technologies like Kotlin, Java, Spring Boot, AWS, Kubernetes and RabbitMQ? </p><p>Do you thrive in a collaborative environment where innovation and growth are celebrated?<strong></strong><strong><br/></strong></p><p><strong>Your next missions :</strong></p><ul> <li>Design, develop, and maintain backend systems using Kotlin, Java, and Spring Boot for scalable and resilient telematics services.</li> <li>Develop and maintain cloud-based architectures with AWS for high availability and performance.</li> <li>Implement microservices architectures and containerization using Kubernetes to support distributed systems and continuous deployment.</li> <li>Design and optimize data flows with RabbitMQ for message queuing and event-driven communication between services.</li> <li>Work on real-time data processing and analytics to support telematics use cases such as vehicle tracking, rental state, and fraud checks.</li> <li>Collaborate closely with mobile developers, and product managers to ensure backend services are well-integrated with the overall car sharing platform.</li> <li>Write clean, testable, and maintainable code, adhering to best practices and internal standards.</li> <li>Contribute to system design discussions and ensure backend services are designed for scalability, security, and high availability.</li> <li>Lead code reviews, mentor junior engineers, and foster a collaborative and knowledge-sharing culture.</li> <li>Troubleshoot and resolve production issues in a timely and efficient manner, ensuring high system uptime and reliability.</li> </ul><ul> </ul><p><strong>Qualifications:</strong></p><ul> <li>5+ years of experience in backend development, with a focus on microservices architecture and cloud-based solutions.</li> <li>Bachelor's or master's degree in computer science, engineering, mathematics, physics, or equivalent IT knowledge</li> <li>Proficiency in Kotlin and/or Java technologies and frameworks (e.g., Spring Boot) is a plus</li> </ul><p><strong>Required skills:</strong></p><ul> <li>Familiarity with continuous integration systems (e.g., Gitlab) and cloud infrastructures like AWS</li> <li>Knowledge of both SQL and NoSQL databases</li> <li>Practical expertise in configuring and implementing messaging systems (e.g., RabbitMQ, Kafka)</li> <li>Excellent communication skills in English and the ability to collaborate effectively in a distributed team.</li> <li>Proven problem-solving ability and a passion for building scalable, maintainable backend systems.</li> </ul><p><strong>Preferred skills:</strong><br/></p><ul> <li>Experience with real-time date processing for telematics use cases like vehicle tracking, rental states and fraud detection.</li> <li>Familiarity with distributed system design for scalability and high availability</li> </ul><p><strong>What we offer:</strong></p><p>Working at Free2move means becoming part of a tribe in which the culture of performance rhymes with a good atmosphere. It is also:<br/></p><ul> <li>A start-up spirit supported by a large Group 🥇</li> <li>The opportunity to revolutionize the uses of mobility with us! 🚘</li> <li>A neat integration to start well 🎁</li> <li>Lots of possibilities for development 📈</li> <li>Collaboration with multidisciplinary and international teams 💪🏼</li> <li>International projects to perfect your background! 🌍</li> <li>An <strong>attractive salary</strong> 💸</li> <li><strong>No-meetings days</strong> to boost your efficiency!</li> </ul><p>...This list is not exhaustive...<br/><strong><br/>Job type:<br/></strong>- Permanent contract in Berlin <br/>- To be filled asap <b