Full-Stack AI Engineer: End-to-End LLM & Platform

INDEEP AI; Barcelona; On-site; EUR 50,000 - 80,000; Full time

Benefits offered by this job

Direct collaboration with CTO

High-potential startup environment

Early-stage team member

Job summary

Indeep AI is seeking a versatile Full-Stack AI Engineer for our Barcelona office. You will work across the entire stack—from backend services and AI pipelines to the frontend and deployment infrastructure—supporting the CTO in delivering a coherent, reliable product.

This hands-on role fits a generalist who thrives in a fast-paced startup. You’ll own features end-to-end, balance performance with cost, and contribute to a high-impact EU-funded project with wide scope across data, model

Qualifications

• 5–8+ years of professional software engineering with full-stack breadth.
• Strong Python backend experience.
• Hands-on experience integrating LLMs or AI/ML models in production, incl. prompt engineering.
• Working experience in frontend development and modern web frameworks.
• Practical experience with infrastructure, deployment, and DevOps (CI/CD, cloud, containers).
• Genuine generalist mindset: comfortable owning problems across the stack.
• Ability to thrive in a fast-paced startup/scale-up environment.

Responsibilities

• Build, extend, and maintain the backend services and platform logic powering Typewiser.
• Write clean, tested code and contribute to codebase health.
• Implement features end-to-end from data layer through API in collaboration with the CTO.
• Develop and integrate LLM-driven pipelines, prompts, orchestration, and validation layers.
• Integrate and evaluate third-party AI models and APIs, balancing quality, latency, and cost.
• Help build tooling and evaluation to keep AI-driven features reliable and reproducible.

Skills

Python backend

Frontend development

LLM integration

DevOps / CI/CD

Cloud environments

Containerisation

Generalist mindset

Startup experience

Tools

AWS

Vector databases

LLM evaluation

Git & CI tools

Job description

Indeep AI is seeking a versatile Full-Stack AI Engineer for our Barcelona office. You will work across the entire stack—from backend services and AI pipelines to the frontend and deployment infrastructure—supporting the CTO in delivering a coherent, reliable product.

This hands-on role fits a generalist who thrives in a fast-paced startup. You’ll own features end-to-end, balance performance with cost, and contribute to a high-impact EU-funded project with wide scope across data, model