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Senior AI Software Engineer

Germany - Düsseldorf💼 Full-time🗓 2026-08-03 → 2026-09-26

Core

Build agentic systems and full-stack prototypes end-to-end at the intersection of frontier AI capabilities and enterprise products, turning new models and agent patterns into working systems validated by real metrics.

Role type

Senior Individual Contributor AI Software Engineer (Agentic Systems & Prototyping)

Builds

Agentic systems, full-stack prototypes, and reference implementations for the Cognigy AI agent platform

Domain

Enterprise AI, Customer Experience, Conversational AI

Deliverable

production ML models | product features

Required skills

Full-stack development (TypeScript/Node.js/React), LLM-powered system production experience, AI agent architecture (message arrays, tool calling, context management, prompt caching), AI-assisted development workflows, rapid prototyping, experimental design

Preferred skills

UX/UI design for prototypes, real-time voice AI (streaming, STT/TTS), open-source agent tooling contributions, AI system evaluation design, conversational AI product background

Technologies

TypeScript, Node.js, React, MCP servers, Claude Code, Codex, Cursor

Responsibilities

Build agentic systems and full-stack prototypes from zero to working software in days; Track frontier AI capabilities and convert promising concepts into validated prototypes; Design experiments measuring quality, latency, cost, and user impact; Collaborate with product and customers to validate concepts early; Convert validated prototypes into reference implementations and documentation; Provide feedback on AI capability gaps and strengths to product teams

Seniority

Senior, hands-on IC

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