Senior / Staff Fullstack Developer (m/f/d) – Authentication & Profile

Join a team that builds and evolves the technical foundation for our premium subscription business across multiple brands. Together, we create scalable solutions for acquisition, checkout, payments, entitlements, and partner integrations, combining engineering excellence with business impact. As a Senior/Staff Engineer, you will help shape architecture, drive technical improvements, and contribute to systems that enable sustainable growth and exceptional user experiences.

We believe in the future of journalism as a business model and invest in forward-looking technologies. Our five essentials are the values that unite us and our compass in our commitment to freedom.

Responsibilities

own and evolve the technical foundation of our Authentication & Profile domain across account creation, login, registration, single sign-on, profile data, and secure access to user information; design, build, and operate scalable full-stack services that enable millions of users to access our brand products and premium content reliably across all channels; shape the future of our identity platform by improving security, user experience, performance, and maintainability across authentication and profile-related services; challenge existing systems and drive well-founded improvements that reduce complexity, increase reliability, strengthen data security, or unlock better product and business outcomes; work closely with product, engineering, security, data, and business stakeholders to turn authentication, profile, and user data requirements into pragmatic technical solutions; design and improve APIs, service architectures, frontend integrations, and data access patterns used by internal services across our multi-brand ecosystem; build and operate cloud-native infrastructure on AWS with serverless architectures, CI/CD, observability, infrastructure automation, strong production ownership, and hands-on mentoring

Requirements

10+ years of software engineering experience with strong expertise in full-stack development, distributed systems, and cloud-native architectures; strong hands-on production experience with Java as a primary language, ideally combined with TypeScript and modern web technologies; deep experience building and operating scalable applications on AWS, particularly with AWS Lambda, serverless architectures, CI/CD, observability, and infrastructure automation; solid understanding of modern software architecture, APIs, distributed systems, security, resilience, and high-availability web applications; experience with authentication, identity, single sign-on, user profiles, secure data access, privacy, or security-sensitive product domains; strong ability to work across the stack, including backend services, frontend integrations, and the user-facing flows that connect them; pragmatic, analytical mindset with strong English and German communication skills, confident AI tool usage, and curiosity for technologies such as Go or Rust where they add value