Senior Python Backend Engineer (m/f/d)

Hays

FULL_TIME Vienna, Vienna Computer Occupations

Posted:

June 12, 2026

Location:

Vienna, Vienna, Austria

Job Description

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 ...
                

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Job Overview

Job Type: FULL_TIME

Location: Vienna, Austria

Posted: June 12, 2026

Deadline: July 22, 2026