Senior Backend Engineer (m/f/d) – Kotlin/Spring Boot/AWS

• take end-to-end ownership of our backend services to deliver scalable, reliable systems powering our mobile experience
• architect and implement robust backend solutions with Kotlin, Spring Boot, AWS, and Kotlin-based AWS Lambdas ensuring long-term performance and maintainability
• ensure reliability and operability of your backend services by optimizing monitoring, logging, metrics, alarming, and overall service health
• collaborate with our MaPS platform team to deploy and operate workloads on Kubernetes using modern, developer-friendly infrastructure
• develop and document clean, efficient APIs for seamless integration with other teams and products across our ecosystem
• act as a mentor and sparring partner for Android and cross-functional team members on backend topics to boost collaboration and knowledge sharing
• broaden your skill set by exploring Android or iOS development and gaining insight into the full product vertical
• play a key role in shaping technical vision, aligning architecture decisions, and continuously improving processes for greater product impact

• at least five years of hands-on experience as a backend or software engineer, ideally in JVM-based backend systems
• fluent in Kotlin and experienced with Spring Boot, having built and operated production-grade backend services
• solid track record working with AWS cloud technologies (including Lambda and container-based workloads), plus familiarity with cloud-native patterns like IAM, S3, and messaging services
• interested in Kubernetes, understanding concepts like deployments, observability, and containerized workloads
• strong commitment to code quality, maintainable architectures, testing and long-term system ownership
• enthusiasm for monitoring, transparency, and building systems that are easy to operate
• proven strength in mentoring colleagues, building cross-team relationships, and actively promoting knowledge sharing in diverse environments
• strong communicator who translates complex technical topics for product managers, designers, and fellow engineers

• your personal growth is important to us: we offer trainings and learning lunches, tech conferences, a budget for workshops and much more to expand your knowledge and your skills
• Employee offers that suit you and your life situation: Whether it's a discounted public transport ticket or JobRad leasing, a bicycle garage (incl. regular bicycle service), childcare facility or our modern in-house kindergarten
• 30 days vacation plus 10 days work from abroad
• our free food offer: we offer free lunch in our canteens
• we offer guidance on the administrative side of relocation and visa processes through our relocation agency
• collaboration thrives on direct exchange - we rely on 80% office presence and 20% mobile working
• from now a permanent full- or part-time position in a modern office in the heart of Berlin:

The most frequently asked questions and their answers can be found on our FAQ page:

Diversity is an essential part of our corporate culture! We are looking forward to receiving all applications regardless of gender, nationality, ethnic and social origin, religion, ideology, disability, age, sexual orientation and identity.

You can find information about the representation for the severely disabled at Axel Springer here: https://career.axelspringer.com/en/rsde