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Backend Developer / AI Engineer (m/w/d)

Köln, NORDRHEIN_WESTFALEN🌐 Remote💼 Full-time🗓 2026-08-26 → 2026-09-26

Core

Building and operating the backend services for an enterprise AI platform that provides AI assistants, semantic search, and automated workflows for non-profit organizations.

Role type

Senior Backend Developer / AI Engineer

Builds

Enterprise AI platform serving non-profits, churches, associations, and public institutions

Domain

Non-profit sector, AI infrastructure, semantic search, LLM integration

Deliverable

production ML models | product features | infrastructure

Required skills

Backend development in typed languages (Go, Rust, Java, C#), API design and operation, concurrent programming, performance optimization, semantic search and retrieval, LLM integration, containerization, Linux, CI/CD, relational and vector databases, multi-tenant architecture, data privacy compliance

Preferred skills

AI/ML infrastructure operation (serving, scaling), ranking algorithms, GPU infrastructure management, European cloud and data protection requirements

Technologies

Go, Rust, Java, C#, LLMs, Docker, Kubernetes, Linux, PostgreSQL, Vector databases

Responsibilities

Develop and maintain backend services for AI agents, build and optimize semantic search systems, integrate various AI providers and models, ensure data privacy and GDPR compliance, manage multi-tenant data isolation, optimize response latency under high load, collaborate with frontend, data, and AI teams

Seniority

Senior, hands-on IC

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