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# Fullstack (Back end - AI)

- **Company:** Business Insights
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Microsoft Azure, Continuous Integration, DevOps, Node.Js, Next.js, TypeScript, ReactJS, Large Language Models, Prompt Engineering, Backend, Bicep, Cosmos DB, Front End Software Development, Api Design, Terraform
- **Published:** June 17, 2026
- **Apply:** https://es.indeed.com/viewjob?jk=97f8d23c324cf410

## About the Role

* Solid backend experience (ideally 5+ years)
 * Strong Node.js / API development background
 * Hands-on experience with AI in real use cases (LLMs, RAG, agents…)
 * Comfortable working in cloud environments (Azure is a plus)
 * Someone who takes ownership and can work end-to-end
 * Practical, problem-solving mindset
 * Comfortable working in English

Nice to have

 * Terraform / Bicep
 * Observability / monitoring experience
 * Exposure to regulated environments or security topics

## Description

We're looking for a Senior Backend Engineer to join an AI team working on a Secure GPT platform (an internal ChatGPT-like solution) used across a global environment.

The focus of the role is to build real AI features in production, making them scalable, secure, and actually useful for the business.

What you'll be doing

 * Building and improving backend features (mainly Node.js / TypeScript)
 * Working on GenAI use cases like:
 + document understanding
 + translation
 + agent-based workflows
 + APIs and automation
 * Owning your work end-to-end (from design to production and monitoring)
 * Defining and tracking how features perform (KPIs, usage, etc.)
 * Collaborating with product and tech teams in an international setup
 * Continuously improving how things are built and scaled

️ Tech environment

 * Backend: Node.js, TypeScript
 * Frontend: React / Next.js (light involvement)
 * Cloud: Azure (App Services, Cosmos DB, monitoring)
 * CI/CD and DevOps practices
 * GenAI: OpenAI, Azure AI, RAG, agents, prompt engineering


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