Senior Python Backend Engineer (m/f/d)

Hays Vienna, Austria

Posted 2 days ago Contract Competitive

Aufgaben

Develop and maintain scalable backend services using modern Python, asynchronous programming and clean architectural principles
Design and implement REST APIs, data schemas and integrations with external services, knowledge sources and AI components
Build and enhance LLM-based backend capabilities, including agent orchestration, tool integration and response evaluation
Ensure software quality through automated testing, code reviews, CI/CD workflows and continuous improvement of production services

Profil

Strong professional experience in Python backend development and building production-grade web services
Advanced hands-on experience with Python 3.x, asynchronous programming, type hints and backend API development
Proven experience delivering LLM or Generative AI functionality in production, beyond prototypes or proof-of-concepts
Practical experience with LLM orchestration frameworks such as LangChain or LangGraph, including prompt engineering, tool integration and/or agent workflows
Strong understanding of LLM evaluation and quality assurance, including test datasets, evaluation methods, observability or production feedback signals
Solid knowledge of typed and asynchronous Python as well as modern API frameworks such as FastAPI and validation frameworks such as Pydantic
Experience working with structured software architectures, automated testing, Git-based development workflows and CI/CD environments
Professional working proficiency in English and experience collaborating with cross-functional engineering and product teams

Benefits