Jobs in Poland

Are you ready to bring order to chaos and build a robust backend from the ground up? Join a focused, agile team working alongside the CTO to revamp and restructure a cutting‑edge platform. This role is perfect for a backend engineer passionate about clean architecture, modular development, and seamless system flows.

• Audit and review an existing Python/FastAPI/Gradio codebase to understand its current state and challenges.
• Design and implement a clean, scalable architecture for:
  • Document ingestion pipelines
  • Classification and routing mechanisms
  • Retrieval‑Augmented Generation (RAG) and embedding‑based indexing
  • Backend APIs for smooth interaction and integration
• Refactor the backend into well‑organized, stable modules.
• Tighten authentication and refine project, user, and session management workflows.
• Shape and optimize a sensible database schema covering studies, articles, projects, users, and organizations.
• Collaborate closely with the CTO in a small but high‑impact team.

• 6+ years of solid backend and systems design experience.
• Expert‑level skills in Python and FastAPI.
• Proven experience structuring data processing or machine learning pipelines.
• Comfortable conducting codebase audits and delivering actionable architecture reports.
• Bonus points for experience with RAG, text extraction, and AI APIs like OpenAI or Anthropic.
• Preferably available full time, but a small part‑time commitment (around 1/4 time) can be considered.

You’ll be working in a lean setup with just the CTO and yourself as the core engineering force — a unique opportunity to have a direct impact on shaping the backend foundation of a forward‑thinking platform.

• A brief interview to get to know you.
• A live coding session to evaluate your approach to problem‑solving.