We’re looking for a Lead Business Analyst with strong AI expertise to join a collaborative team working on innovative software and AI solutions for a leading client.

You’ll work closely with business and technical stakeholders to identify, assess and shape AI use cases , translating business needs into valuable and feasible AI solutions.

What we’re looking for
Strong experience as a Business Analyst, Product Analyst or AI Business Analyst
Strong understanding of Generative AI, LLMs and AI solution design
Hands-on understanding of prompt engineering, RAG, model evaluation and fine-tuning
Ability to assess AI use cases, feasibility, cost-benefit and business value
Understanding of hallucinations, bias, AI ethics, token management and model versioning
Experience defining AI success metrics and A/B testing approaches
Good knowledge of SQL, APIs and data quality
Experience working with Jira/Azure DevOps,



Confluence and Git
Strong Agile experience, including sprint planning, retrospectives, user story mapping, acceptance criteria and backlog refinement
Excellent stakeholder management and communication skills
Ability to understand when AI should — and should not — be used

Nice to have
Figma / wireframing
ChatGPT / Claude
Hugging Face
AWS Kiro
ML model monitoring and drift detection
Retraining workflows
Data pipeline understanding

Location: Barcelona, 3 days/week onsite
Contract: Freelance
Rate: €330–355/day
Start date: 21 September 2026
Initial duration: Until 31 October, with expected extension
Laptop: Own laptop required
Background check: Required

📌 Lead Business Analyst – AI | Barcelona | Freelance
🏢 E-Frontiers
📍 Barcelona