Hybrid AI Software Developer – m/f/d

at Listan GmbH

• Job title: AI Software Developer – m/f/d
• Job type: Full Time
• Experience level: Junior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Cloud, Docker, JavaScript, Node.js, Python, TypeScript
• Location requirements: Hybrid, Germany

About the role

• AI Software Developer creating AI systems for business processes with a focus on robust LLM solutions. Engaging in end-to-end development of production-ready AI features and API integrations.

Responsibilities

• You develop AI systems that understand business processes, make decisions, and take actions
• Focus on robust LLM/agent solutions that process content, retrieve knowledge, and trigger controlled actions
• End-to-end development of production-ready AI features: backend services, orchestration, and clean APIs
• Knowledge retrieval (RAG): document ingestion, indexing (embeddings/vector indexes), retrieval/reranking
• Solutions in the Amazon ecosystem: listing quality, search engine optimization, keyword management, competitor/price monitoring, KPI monitoring & anomaly alerts
• System & API integration: building robust interfaces to internal and external data sources
• Ensure security & traceability for agents: guardrails, permission/role models, audit logs

Requirements

• Several years of software engineering experience (backend focus) and product experience with AI/LLM applications
• Strong hands-on skills in Python and TypeScript (Node.js)
• LLM/agent engineering with tool-calling, cost/rate-limit management, and evaluations (OpenAI experience is a plus)
• RAG & knowledge retrieval: vector databases, embeddings, indexing/chunking, and retrieval tuning (e.g., ranking/reranking)
• Familiarity with the Amazon ecosystem (SP-API, Buy Box) and topics such as listing quality, SEO and keyword management
• Proficient in testing & delivery: modern test frameworks, CI/CD, Docker; cloud experience as well as logging/metrics/tracing
• Plus points: SAP S/4HANA Cloud Public Edition, Amazon SP-API, time-series/forecasting, OCR/NLP, web scraping/automation
• Languages: German B2 and English B2

Benefits

• Diverse opportunities for development in a dynamic environment
• A motivated and successful team that works together like a family
• Experience the appeal of an international and multicultural atmosphere
• Short communication lines, flat hierarchies, and an open corporate culture that values your commitment
• Exclusive perks: Hansefit, employee discounts, beverage provision, fresh fruit, and a meal allowance