Full Stack Developer (Hybrid / Remote)

Full Stack Engineer (Python, React, AI / ML / LLM / SDK) – Cutting-Edge Series B scale up

Location : Remote EU - Spain

Salary : 70K Euros - 100K Euros

About :

We are seeking a Full Stack Engineer with a proven track record in building and scaling applications powered by Large Language Models (LLMs). This role requires deep expertise in Python, React, and modern AI / ML development, including LLM frameworks, SDKs, and retrieval-augmented generation (RAG) systems.

Key Responsibilities

Design and develop scalable full-stack solutions involving both frontend (React / TypeScript) and backend (Python / Java).

Build and optimize AI / ML pipelines leveraging LLMs and RAG architectures.

Develop SDKs and APIs to support AI-driven applications in resource-constrained or production-grade environments.

Collaborate across engineering, product, and research teams to drive innovation in AI / ML-based products.

Ensure high performance, testability, and reliability across the stack.

Key Qualifications

Strong proficiency in Python and React / TypeScript; experience with Java is a plus.

Hands-on experience building and deploying LLM-based systems (e.g., OpenAI, Hugging Face Transformers, LangChain, etc.).

Deep understanding of AI application architecture, including RAG systems, vector databases, prompt engineering, and fine-tuning.

Experience with ML model serving, SDK development, and working in production-grade environments.

Ability to work across the full stack and thrive in a fast-paced, collaborative environment.

Product-focused engineer

What We Offer :

The chance to work with cutting-edge hardware technologies in a high-growth environment.

A collaborative team culture that values innovation and technical excellence.

Competitive salary and benefits package.