CoolPeople Technology

We are looking for an experienced AI / GenAI Developer to build a production AI assistant for railway passengers. You will work across frontend and backend components using modern GenAI and agentic technologies, including LLM-based applications, Tool-Calling Loops, Context & Harness engineering, RAG, MCP servers and enterprise AI platforms in an international environment.

Project

• Development of a production AI assistant for railway passengers
• Development of frontend and backend components of the solution
• Design and implementation of solutions based on LLMs, agentic engineering and Tool-Calling Loops
• Work with Context & Harness engineering, RAG and MCP servers
• Integration of enterprise AI platforms and different data sources
• Collaboration with project teams, decision-makers and stakeholders in an international environment

Skills

• More than 3 years of experience with production LLM-based applications
• More than 3 years of experience with agentic engineering
• More than 1 year of experience with Tool-Calling Loops
• More than 1 year of experience combining LLMs with deterministic code and Context & Harness engineering
• Experience communicating with project teams, decision-makers and stakeholders
• 2 relevant reference projects
• German A2 and English B2

Nice to have

• AI development with governance, security and compliance requirements
• Observability, monitoring, tracing and evaluation of AI applications
• Enterprise AI platforms, AI gateways, prompt management and model governance
• Multi-agent architectures
• RAG and integration of different data sources
• Multi-agent orchestration
• MCP server design and operation