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 forStrong experience as a Business Analyst, Product Analyst or AI Business AnalystStrong understanding of Generative AI, LLMs and AI solution designHands-on understanding of prompt engineering, RAG, model evaluation and fine-tuningAbility to assess AI use cases, feasibility, cost-benefit and business valueUnderstanding of hallucinations, bias, AI ethics, token management and model versioningExperience defining AI success metrics and A/B testing approachesGood knowledge of SQL,



APIs and data qualityExperience working with Jira/Azure DevOps, Confluence and GitStrong Agile experience, including sprint planning, retrospectives, user story mapping, acceptance criteria and backlog refinementExcellent stakeholder management and communication skillsAbility to understand when AI should — and should not — be usedNice to haveFigma / wireframingChatGPT / ClaudeHugging FaceAWS KiroML model monitoring and drift detectionRetraining workflowsData pipeline understandingLocation: Barcelona, 3 days/week onsiteContract: FreelanceRate: €330–355/dayStart date: 21 September 2026Initial duration: Until 31 October, with expected extensionLaptop: Own laptop requiredBackground check: Required

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