Senior Backend Engineer - Security Automation

About the Opportunity At N26, security is the foundation of our bank. As one of the first banks completely hosted in the cloud—our security, resilience, and productivity standards require not only the use of a modern technology stack, but the building of teams in line with our principles and in the service of our product teams, the company, and our customers. We are seeking a talented Senior Backend Engineer with a strong security or SRE background to join our Security Engineering team. In this role, you will be part of a small, high-impact, and independent team responsible for building and scaling the N26 Security Platform. This team acts as a central force within our security organization, building internal products and automation engines that support multiple specialized teams across the company. Our cross-functional teams are passionate about collaboration and sharing knowledge, as well as working with a high degree of autonomy. This is a role for an engineer who thrives on autonomy, wants to embrace the latest technological updates, and is excited to solve high-stakes technical challenges on a daily basis. Once here you will Design and Own End-to-End Solutions: Lead the architectural design and implementation of high-availability, high-performance backend services and platform components, seeing them through from concept to production completion. Build the Security Platform: Develop tools and automation engines that enable specialized security teams to automate threat detection, incident response, and vulnerability management at scale. Enable the Organization: Act as a technical partner to various streams within the organization, building the shared infrastructure and automation they need to operate efficiently. Drive Technical Excellence: Maintain an exceptionally high bar for code quality, software architectures (Distributed systems, Domain-Driven Design), automated testing, and system reliability right across the platform. Champion "You Build It, You Run It": Own the full lifecycle of your services, leveraging modern CI/CD practices and Infrastructure as Code to ensure seamless, resilient cloud production deployments. What you bring Strong Backend Foundation: 5+ years of experience building production-grade software applications and managing complex backend architectures in large-scale production systems. Architecture & Best Practices: Solid experience with software development best practices and modern architectures (Distributed systems, Domain-Driven Design, Testing frameworks). Cloud & Infrastructure Mastery: Previous experience with cloud architectures, preferably with AWS, alongside containerization technologies (Docker, Kubernetes). Quality Craftsmanship: A strict commitment to clean code, comprehensive testing strategies, system scalability, and building services that are as secure as they are performant. Language Proficiency: Full professional proficiency in English with excellent communication and documentation skills. Nice to Have Security or SRE Background: A strong background or proven experience in Site Reliability Engineering (SRE) or security automation (e.g., integrating SAST/DAST, SIEM, SOAR, or building automated patching/remediation frameworks). Event Streaming: Hands-on experience developing and/or operating event streaming platforms, preferably Apache Kafka. Infrastructure as Code: Deep knowledge of IaC methodologies and tools, particularly Terraform. Data Engineering: Hands-on experience or familiarity with data engineering pipelines and automated workflows. Core Technical Stack: Experience in developing software using Java/Kotlin and Spring Boot. Traits Self-Driven Independence: A proven track record of working effectively in small, autonomous teams with a strong bias for action, and getting things done. Collaborative Spirit: Give and receive open, direct, and timely feedback, actively helping yourself and others be successful while challenging the status quo. What’s in it for you: Accelerate you