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# Ai Engineer

- **Company:** UL LLC
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Application Programming Interfaces (APIs), Artificial Intelligence, Microsoft Azure, Code Review, Continuous Integration, Python (Programming Language), Machine Learning, Regression Testing, Software Engineering, Management of Software Versions, Cloud Platform System, Microsoft Power Automate, Large Language Models, Multi-Agent Systems, Information Technology
- **Published:** September 20, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

You will implement guardrails for prompt injection/data exfiltration, handle PII redaction, and align with retention/audit requirements with IT and security stakeholders.You will build reusable libraries (prompt/versioning patterns, artifact generators, question banks, retrieval components) so each use case accelerates the next.Your profile:You have 4-6+ years of relevant engineering experience (software engineering, ML engineering, or applied AI engineering).
You have experience in leading technical projects and take on ownership of technical solutions.You communicate clearly in English (C1+) and can align technical decisions with business constraints.You are strong in Python, including API development and integration patterns.You have deep hands-on experience delivering LLM-based solutions (RAG, tool calling, agentic workflows) with LangChain and/or LangGraph or similar AI orchestration frameworks.You are comfortable with production practices, including testing, code reviews, CI/CD, observability, and operational support.You have a university degree in Computer Science, Data Science, Engineering, or equivalent practical experience.Experience with workflow automation and cloud ecosystems, such as Power Automate or similar platforms as well as the Azure environment (e.G., AI Foundry, Container Apps, Functions), is nice to have.A background in consulting or a solid understanding of professional services delivery models

## Description

You will integrate with internal data via APIs/connectors and automate end-to-end flows using Power Automate across Microsoft 365.You will build evaluation datasets, define quality metrics, run regression tests, and implement observability/tracing (LangSmith and/or Azure AI Foundry tooling).


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