Location: Remote – Open to candidates across Europe. Must have working-hour overlap with U.S. Eastern Time.
Position Overview
MS SHIFT is looking for an experienced AI Developer to help design, build, and integrate AI-powered features into our software platform. The idóneo candidate has strong software development experience combined with hands-on experience building applications using LLMs, AI agents, APIs, and modern AI frameworks .
This is a hands-on development role for someone who can take an AI concept from idea to production.
Responsibilities
Design and develop AI-powered applications and features
Build and integrate LLM-based solutions using OpenAI and other AI platforms
Develop AI agents and automated workflows
Implement RAG (Retrieval-Augmented Generation) using company and customer data
Build secure integrations between AI services, databases, APIs, and existing applications
Develop prompt workflows, tool/function calling, and structured AI outputs
Work with vector databases, embeddings, and semantic search
Evaluate and improve AI response accuracy, reliability, and performance
Implement guardrails, monitoring, logging, and error handling
Optimize AI applications for performance, scalability, and cost
Work closely with product and engineering teams to turn business requirements into production-ready AI features
Research and evaluate new AI technologies and recommend practical applications
Requirements
10+ years of professional software development experience




Strong experience with .NET CORE
Hands‑on experience developing applications using LLMs and Generative AI
Experience with OpenAI APIs or similar LLM platforms
Experience building AI agents, RAG systems, embeddings, and vector search
Strong understanding of REST APIs and third‑party integrations
Experience with SQL and relational databases
Experience with cloud platforms such as Microsoft Azure or AWS
Strong understanding of software architecture, security, testing, and production deployment
Experience with Git and modern development workflows
Strong problem-solving skills and ability to work independently
Preferred Qualifications
Experience with Azure OpenAI
Experience with agent frameworks and orchestration tools
Experience integrating AI into existing enterprise/SaaS applications
Knowledge of C#/.NET is a strong plus
Experience with MySQL and Microsoft SQL Server
Experience with document processing, OCR, image analysis, or multimodal AI
Experience building enterprise search or internal knowledge assistants
Understanding of AI security, privacy, permissions, and data governance
What We’re Looking For
We are looking for a builder , not just someone familiar with AI concepts. The right candidate should be comfortable writing production code, experimenting with new AI technologies, troubleshooting complex integrations, and turning AI capabilities into practical features that customers can use every day.
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📌 Artificial intelligence engineer (Barcelona)
🏢 MS Shift
📍 Barcelona