Senior Full-Stack Developer & AI Engineer | (Senior) Full -Stack -Entwickler/AI -Engineer (w/m/d)

Sellium GmbH

Chemnitz, Sachsen, Sachsen, Deutschland
Published Apr 10, 2026
Full-time
No information

Job Summary

As a Senior Full-Stack Developer and AI Engineer at Sellium GmbH, you will play a pivotal role in transforming medium-sized businesses through GDPR-compliant AI integration. Your daily responsibilities involve architecting complex user interfaces, designing scalable backend systems, and integrating advanced AI models and agent systems using frameworks like LangChain or N8N. Beyond coding, you will act as a technical leader, coordinating external subcontractors and internal team members while defining the future technology stack of the company. This role is highly attractive for professionals who want to move beyond simple coding to generate real impact in a startup environment that values self-organization and agile methodologies. You will have the opportunity to utilize cutting-edge AI development tools to reduce cognitive load and focus on high-level logic, all while working in a flexible, hybrid environment located in the heart of Chemnitz.

Required Skills

Education

Not specified

Experience

  • At least 5 years of professional experience as a Full-Stack Developer in complex projects
  • Extensive experience in building scalable backends and modern component-based frontend architectures
  • Proven experience in integrating AI models and agent systems into production-ready applications
  • Professional experience in team leadership and coordinating external subcontractors
  • Experience with E-commerce solutions is preferred but not mandatory

Languages

German (Fluent)English (Intermediate)

Additional

  • The role is based in Chemnitz with hybrid work options. Candidates must be comfortable with self-organized work environments (Holacracy). Full-time (minimum 35 hours/week) with an open-ended contract.