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Backend Engineer - AI Agents (all genders)

KölnFull-time2026-10-07 → 2026-10-16
Hybrid

Core

Backend Engineer building and scaling AI Agents and automation solutions, including agent loops, tool calling, and context management.

Role type

Senior Backend Engineer (AI Agents)

Builds

AI Agents and automation solutions (e.g., Connect AI) for end-users

Domain

Artificial Intelligence / Large Language Models / Backend Engineering

Deliverable

production ML models

Required skills

Python, Django, AI Agents development, Context Window management, Tool Calling, Prompting, RAG, Vector Databases, Evals (LLM-as-a-Judge), API design, MCP-Tools, Website Crawling

Preferred skills

Pydantic AI, LiteLLM

Technologies

Python, Django, Langfuse, Arize Phoenix, LangSmith, Pydantic AI, LiteLLM

Responsibilities

Design AI architecture for flexible LLM integration; Develop agent loops, tool calling, and context management; Build evaluation systems using real customer conversations; Integrate knowledge via APIs, MCP-Tools, and web crawling; Collaborate closely with Product team.

Seniority

Senior, hands-on IC