Senior Backend Engineer (m/f/d)

Tasks

• Design, develop, and maintain backend services and APIs for our content platform using Python, and FastAPI

• Build reliable pipelines that transform raw and heterogeneous data into structured, production-ready content

• Develop and integrate production-grade LLM workflows, including prompting, structured outputs, embeddings, similarity search, and evaluation

• Build resilient integrations with third-party APIs, REST services, and webhooks

• Design and maintain asynchronous processing workflows using queues, and Redis

• Contribute to our TypeScript services where needed

• Contribute to architecture, code quality, technical standards, and continuous improvement of our backend stack

Requirements

• 6+ years of professional backend engineering experience

• Strong Python expertise, including FastAPI and pydantic

• Working knowledge of TypeScript — enough to read, debug, and contribute to our TypeScript services

• Experience with AI automation — building systems that integrate, govern, or orchestrate LLM-driven workflows, not just calling an API

• Experience with Redis and message queue based asynchronous processing

• Strong testing discipline (pytest) and track record of owning features end-to-end, from architecture through delivery

Nice-to-have

• TypeScript/Node.js experience, e.g. with frameworks such as NestJS

• AWS or other cloud infrastructure experience

• Experience with data pipelines handling heterogeneous/unstructured input

• Familiarity with vector search / embedding stores

• Prior experience integrating with third-party content or media APIs

Benefits

• Creative Freedom and Responsibility: You’ll have genuine freedom to actively help shape and further develop our digital products, workflows, and formats

• Meaningful Work: The opportunity to contribute to a challenging environment

• Secure Future: Permanent employment with a trust-based work schedule and a high degree of personal responsibility

• Work in the heart of Berlin: A modern office right on Alexanderplatz with an impressive view of the city and excellent public transportation connections

• Appreciative corporate culture: An open, collegial atmosphere where individual perspectives matter and teamwork is a way of life

• Personal and professional growth: Opportunities for growth and the chance to take on more responsibility and develop new skills