As a Senior / Lead GenAI Engineer, you will design, build and scale production-grade Generative AI solutions for a leading company in the banking sector, taking technical ownership from architecture through deployment, in a fully remote role.
Don't tick every box? If you meet around 70% of the requirements above, we'd still encourage you to apply.
ABOUT THE ROLE
We are looking for a Senior / Lead GenAI Engineer with deep, hands‐on expertise in Python and Large Language Models to design, build and scale Generative AI solutions for a leading banking sector client. In this role, you will take technical ownership of GenAI initiatives end-to-end — from architecture and prototyping through to secure, compliant production deployment — while mentoring engineers and partnering with business, risk and compliance stakeholders to ensure solutions meet the standards of a highly regulated environment.
KEY RESPONSIBILITIES
GenAI Solution Design & Delivery
- Design, build and deploy production‐grade Generative AI solutions (RAG pipelines, conversational assistants, multi‐agent systems)



using Python and modern LLM frameworks.
- Lead prompt engineering, chain‐of‐thought orchestration, structured output parsing, guardrails and evaluation pipelines for LLM-based applications.
- Architect and own RAG pipelines end‐to‐end: document ingestion, chunking, embeddings, vector store management and retrieval optimization.

Platform & MLOps
- Deploy and operate GenAI applications on cloud infrastructure (AWS, Azure or GCP), with a focus on scalability, security and cost optimization.
- Implement evaluation and monitoring frameworks for AI systems: response quality, latency, hallucination detection and feedback loops.
- Define MLOps practices for LLM-based systems: versioning, automated evaluation and production monitoring.

Leadership & Stakeholder Management
- Act as technical lead for GenAI initiatives, mentoring engineers and setting technical direction.
- Translate business requirements from

📌 GenAI Platform Data Engr (Madrid)
🏢 Cognizant
📍 Madrid