Python Developer with Maintenance Skills
(m/f/d)
Freelance/Contracting project Vienna Start date: 05/26 Reference number: 869579/1
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Responsibilities
1. Maintain and stabilise the existing conversational backend (bug fixes, minor enhancements, testing, reliability, cautious change management)
2. Ensure continuous operation of production services and timely resolution of maintenance issues with no regressions
3. Work with a short-term maintenance focus and transition mid- to long-term to full-time Python/AI development
4. Develop and extend a Python-based conversational AI orchestration layer (LangChain / LangGraph)
5. Implement LLM orchestration pipelines including prompt engineering, API integration, hallucination handling, error handling, and fallback strategies
6. Participate in architecture discussions and the migration from to a Python/Kotlin stack
7. Integrate and collaborate with Kotlin backend services and engineers
8. Create and maintain automated tests, technical documentation, and CI/CD pipelines
9. Collaborate closely with a cross-functional product team (frontend, Kotlin, business, design)
Profile
10. Professional experience maintaining backends in production environments (Express/Koa-style)
11. Professional Python experience
12. Practical experience with LLMs, LangChain, and prompt engineering
13. Proven handling of LLM-specific challenges ( hallucinations, prompt iteration, reliability)
14. Experience with automated testing (Jest/Mocha, pytest) and CI/CD pipelines
15. Familiarity with Kotlin backend ecosystems and service integration
16. Experience with Git / version control
17. Familiarity with Docker, cloud platforms (AWS, Azure, GCP), and Databases (PostgreSQL, MongoDB, Redis)
18. Solid understanding of API design
19. JWT/OAuth2 knowledge is an advantage
Benefits
20. International client
21. Remote work possible