AI Engineer

AI Engineer (LLMs & GenAI)

Barcelona (Hybrid: 2 days onsite)

About the Company

We are a growing AI innovation team within a global organisation, focused on accelerating business value through cutting-edge artificial intelligence solutions. Working across multiple business units, we build scalable, production-grade AI systems that deliver real-world impact.

About the Role

We are looking for an AI Engineer to design, build, and deploy advanced AI/ML solutions. You’ll work on LLM-powered applications, multi-agent systems, and scalable data pipelines in a collaborative Agile environment.

Key Responsibilities

• Build and maintain LLM-based applications and multi-agent systems
• Develop and optimise RAG pipelines (ingestion, chunking, embeddings, retrieval)
• Implement and manage vector databases for semantic search
• Build data pipelines (ETL) to support AI use cases
• Develop backend APIs (Python/FastAPI) for AI services
• Deploy and manage AI workloads on cloud platforms (AWS, Kubernetes)
• Design evaluation frameworks for LLM performance (automated + human review)
• Collaborate with cross-functional teams to deliver AI solutions
• Contribute to Agile ceremonies and continuous improvement
• Mentor junior engineers and promote best practices

Requirements

• 3–5 years in software engineering, including 1–2 years in AI/ML
• Strong Python skills and experience with ML/LLM frameworks
• Hands-on experience with RAG systems and vector databases
• Experience with LLM APIs and orchestration tools
• Solid understanding of prompt engineering and evaluation techniques
• Cloud experience (AWS preferred)
• Experience with Docker/Kubernetes
• Familiarity with data pipelines (Airflow or similar)
• Experience working in Agile environments
• Strong problem-solving and communication skills

Nice to Have

• Multi-agent systems experience
• MLOps (MLflow, W&B, CI/CD for ML)
• LLM observability tools
• Knowledge graphs or graph databases
• Infrastructure-as-code (e.g. Terraform)
• Experience in complex, enterprise environments

About You

• Passionate about AI and emerging technologies
• Strong analytical and critical thinking skills
• Comfortable working in fast-paced, ambiguous environments
• Collaborative and proactive mindset