Senior Backend Architect - Python & FastAPI, ML Pipelines

Teamtailor; Warszawa; On-site; PLN 253,000 - 339,000; Full time

Job summary

A cutting-edge tech company in Warsaw is seeking an experienced backend engineer to build a robust backend and revamp their platform. You will audit and design scalable systems, refactor existing modules, and collaborate directly with the CTO. Ideal candidates have over 6 years of experience with Python and FastAPI and a background in data processing. Full-time preferred, but part-time can be considered.

Qualifications

• 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.

Responsibilities

• Audit and review an existing Python/FastAPI/Gradio codebase.
• Design and implement a clean, scalable architecture.
• Refactor the backend into well-organized, stable modules.
• Tighten authentication and refine project management workflows.

Skills

Python

FastAPI

Backend architecture design

Systems design

Data processing pipelines

Machine learning pipelines

Job description

A cutting-edge tech company in Warsaw is seeking an experienced backend engineer to build a robust backend and revamp their platform. You will audit and design scalable systems, refactor existing modules, and collaborate directly with the CTO. Ideal candidates have over 6 years of experience with Python and FastAPI and a background in data processing. Full-time preferred, but part-time can be considered.