Senior Python Backend Engineer (m/f/d)

Senior Python Backend Engineer

(m/f/d)

Freelance/Contracting project Vienna Start date: asap Reference number: 880230/1

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Responsibilities

Develop and maintain backend web services for an AI-powered conversational system

Design and implement REST APIs (FastAPI or similar), including OpenAPI-based service contracts

Apply schema and data validation (, Pydantic or comparable approaches)

Ensure high code quality through testing (pytest) and CI pipelines

Collaborate via Git/GitHub workflows, including code reviews

Implement and maintain clean, layered backend architectures with dependency injection

Ensure observability through metrics, tracing, and structured logging

Support containerized deployments using Docker and Kubernetes

Contribute to LLM-based application components (, agent frameworks, prompt engineering, output ...