Senior Backend Engineer (Berlin, DE)

Created in 2016, Free2move simplifies mobility-related uses by offering a wide range of services to satisfy everyone\’s travel needs.

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!

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.

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!

If you want to join a team of +750 experts and bold international projects, then you\’re in the right place!

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.

Are you passionate about building scalable, resilient backend systems and working with cutting-edge technologies like Kotlin, Java, Spring Boot, AWS, Kubernetes and RabbitMQ?

Do you thrive in a collaborative environment where innovation and growth are celebrated?

Your next missions:

• Design, develop, and maintain backend systems using Kotlin, Java, and Spring Boot for scalable and resilient telematics services.
• Develop and maintain cloud-based architectures with AWS for high availability and performance.
• Implement microservices architectures and containerization using Kubernetes to support distributed systems and continuous deployment.
• Design and optimize data flows with RabbitMQ for message queuing and event-driven communication between services.
• Work on real-time data processing and analytics to support telematics use cases such as vehicle tracking, rental state, and fraud checks.
• Collaborate closely with mobile developers and product managers to ensure backend services are well-integrated with the overall car sharing platform.
• Write clean, testable, and maintainable code, adhering to best practices and internal standards.
• Contribute to system design discussions and ensure backend services are designed for scalability, security, and high availability.
• Lead code reviews, mentor junior engineers, and foster a collaborative and knowledge-sharing culture.
• Troubleshoot and resolve production issues in a timely and efficient manner, ensuring high system uptime and reliability.

Qualifications:

• 5+ years of experience in backend development, with a focus on microservices architecture and cloud-based solutions.
• Bachelor\’s or master\’s degree in computer science, engineering, mathematics, physics, or equivalent IT knowledge.
• Proficiency in Kotlin and/or Java technologies and frameworks (e.g., Spring Boot) is a plus.

Required skills:

• Familiarity with continuous integration systems (e.g., Gitlab) and cloud infrastructures like AWS.
• Knowledge of both SQL and NoSQL databases.
• Practical expertise in configuring and implementing messaging systems (e.g., RabbitMQ, Kafka).
• Excellent communication skills in English and the ability to collaborate effectively in a distributed team.
• Proven problem-solving ability and a passion for building scalable, maintainable backend systems.

Preferred skills:

• Experience with real-time data processing for telematics use cases like vehicle tracking, rental states, and fraud detection.
• Familiarity with distributed system design for scalability and high availability.

What we offer:

Working at Free2move means becoming part of a tribe in which the culture of performance rhymes with a good atmosphere. It is also:

• A start-up spirit supported by a large Group.
• The opportunity to revolutionize the uses of mobility with us!
• A neat integration to start well.
• Lots of possibilities for development.
• Collaboration with multidisciplinary and international teams.
• International projects to perfect your background!
• An attractive salary.
• No-meetings days to boost your efficiency!

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