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CoolPeople

Python Developer (42335)

CoolPeople
Austria · Contract · Not Applicable
I'm seeking a Python Developer, who will maintain a Node.js (Express/Koa) backend, ensuring stability and performance, while helping build a Python-based LLM orchestration platform. Work includes LangChain, prompt engineering, CI/CD, Docker, and cloud (AWS/Azure/GCP). The role transitions toward full AI development. Strong Python, backend systems, and LLM experience required.

🚀 Project

  • building and transitioning a conversational AI feature for a digital banking platform
  • maintaining and stabilising an existing Node.js backend in the short to mid-term (bug fixes, minor enhancements, reliability improvements)
  • ensuring ongoing stability and performance of production backend services in a regulated environment
  • contributing to the design and development of a new Python-based orchestration layer for conversational AI
  • working with LLM APIs, prompt engineering, and orchestration frameworks such as LangChain
  • supporting integration of large language models into production-ready systems
  • gradually transitioning from legacy Node.js services to a Python/AI-focused architecture
  • participating in system design and technical decision-making for the AI platform
  • engaging in an initial maintenance-focused role with a planned shift toward full-time AI development (Python/LLM stack)

🎯 Skills

  • experience with existing Node.js backend development (Express / Koa-style frameworks)
  • strong proficiency in Python (minimum 3 years of professional experience)
  • practical experience with LLM applications, including LangChain / LangGraph
  • solid understanding of prompt engineering and LLM orchestration patterns
  • experience with Kotlin backend development and service-oriented architectures
  • working knowledge of databases: PostgreSQL, MongoDB, Redis
  • experience with containerisation using Docker
  • familiarity with CI/CD pipelines and modern DevOps practices
  • cloud experience with at least one major provider: AWS / Azure / GCP
  • esting experience with Jest / Mocha for Node.js, pytest for Python
  • experience working in cross-functional teams (engineering, product, design)
  • strong emphasis on code quality, peer reviews, and automated testing practices

💡 Nice to have

  • security/auth familiarity (JWT, OAuth2)

Key Skills

Ranked by relevance

ai python cloud postgresql kotlin devops mocha cicd aws
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Country Guide

Austria

High quality of life in Vienna

Posted
Apr 20, 2026
Type
Contract
Level
Not Applicable
Location
Vienna
Company
CoolPeople

Industries

IT Services IT Consulting

Categories

Engineering Information Technology

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