Middle Full Stack Developer (Node.js/React)

Description: Join a passionate team of 120+ at pdfFiller, an online platform for PDF document management. Contribute to building an AI assistant and enhancing product features with a focus on backend (80%) and frontend (20%) development. Requirements: Experience with LangGraph or LangChain, agent orchestration, and state machines. Familiarity with RAG, vector search (pgvector), and streaming protocols (SSE). Proficient in observability tools (OpenTelemetry, Grafana stack) and LLM evaluation. Ability to write technical documentation (C4, ADR). Benefits: Educational budget and regular knowledge-sharing sessions. Clear growth path and opportunity to propose improvements in processes and tooling.