Senior Backend Engineer – Identity & Core Product (m/f/d)

What you’ll do

• Architect & Scale: Lead the development and scaling of our central OIDC provider.
• OIDC Federation: Implement and manage integrations with other OIDCs and Social Logins, allowing for a seamless "login once, browse everywhere" experience.
• Extend Subscription Logic: Design and implement complex subscription mapping and entitlement logic that goes far beyond simple "active/inactive" states.
• Single-Article Payments: Build the foundation for granular payment models.
• Security & Privacy by Design: Ensure that our identity service remains a fortress for user data, strictly adhering to GDPR and the highest security standards.
• Collaborate: Work closely with our SDK and Frontend teams to ensure the "glue" connects perfectly to your core service.

• Deep OIDC/OAuth2 Expertise: You don’t just use libraries; you understand the underlying protocols, flows (Authorization Code, PKCE, etc.), and security implications.
• Backend Mastery: You are a seasoned developer, ideally with strong experience in TypeScript/Node.js.
• Identity Experience: You have worked with Identity Providers (IdPs) like Ory Hydra, Keycloak, or Auth0, or have built custom identity solutions from scratch.
• Product Mindset: You understand that technical decisions impact the business. You enjoy thinking about how "Identity" can enable new features like micro-payments.
• Security First: You have a "security-by-default" mindset and experience with JWTs, encryption, and token management.
• Language: Fluency in English (German is a plus, but not required).

We offer

Berlin, Remote Full-time Permanent employee 65,000 - 90,000 € per year

Why us?

• Impact: You are working on one of the most critical parts of our company.
• Flexibility: We are a remote-first company. Work from our beautiful office in Berlin or from your home office anywhere in Europe.
• Growth: A high degree of autonomy and the chance to shape the technical roadmap of our core product.

Your Role: