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Senior Fullstack Developer

Copenhagen, Capital Region of Denmark, Denmark🌐 Remote💼 Full-time🗓 2025-09-26 → 2026-08-01

Core

Building end-to-end AI features that integrate language models, retrieval systems, and streaming interfaces for real-world operational tasks.

Role type

Senior Fullstack Developer (AI/LLM focus)

Builds

Production-ready AI features combining backend services and frontend interfaces

Domain

Artificial Intelligence, Large Language Models (LLMs), RAG, Enterprise Software

Deliverable

production ML models | product features

Required skills

Fullstack development, API design, React development, TypeScript, Python, PostgreSQL, Redis, AI coding tools proficiency, LLM integration, RAG implementation, Streaming UI development

Preferred skills

Next.js, React Query, Zustand, shadcn/ui, LangChain, LlamaIndex, SSE/WebSocket streaming

Technologies

FastAPI, React, TypeScript, Python, PostgreSQL, Redis, Tailwind CSS, Next.js, LangChain, LlamaIndex

Responsibilities

Design and build clean APIs and corresponding UIs, implement streaming responses and real-time updates, handle document-heavy interfaces, maintain code quality and architecture, collaborate with specialists on deep technical areas

Seniority

Senior, hands-on IC

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