CareerPlan

(Senior) Software Engineer – LLM & AI Platform (m/w/d) - Remote

Bad Homburg vor der Höhe, HESSENRemoteFull-time€55k–€85k2026-08-12 → 2026-11-10

Core

Building the LLM platform layer for internal tools and customer products, focusing on RAG, Agents, and Foundation Model application engineering.

Role type

Senior IC LLM Application Engineer

Builds

LLM platform services, RAG pipelines, Agent architectures, and AI features for pricing and market intelligence SaaS

Domain

B2B SaaS / AI / Machine Learning

Deliverable

production ML models

Required skills

RAG pipelines, Vector DB, LLM frameworks (LangChain/LlamaIndex), Prompt/Context engineering, Function Calling, Agent architectures, Backend (Node/Python), API design, React/TypeScript, Data pipelines, Embeddings, MCP

Preferred skills

Experience with LLM APIs (OpenAI, Anthropic, Mistral), Proof-of-Concept development

Technologies

Python, TypeScript, NodeJS, React, LangChain, LlamaIndex, Vector DB, MCP

Responsibilities

Build retrieval backend and embedding pipelines, Integrate LLM APIs into systems, Develop AI features like conversational analysts and semantic search, Implement Agent architectures and MCP interfaces, Contribute to prototypes for new AI use cases