Ahmed Ben Haj Yahia
Data Science graduate of EPFL Switzerland with hands-on industry experience delivering real-world impact across AI/ML, with a recent focus on Retrieval-Augmented Generation (RAG) systems and AI agents.
About
Data Science graduate of EPFL Switzerland with hands-on industry experience delivering real-world impact across AI/ML, with a recent focus on Retrieval-Augmented Generation (RAG) systems and AI agents. Highly motivated to learn and contribute to building reliable, production-grade generative AI solutions.
In my recent work, I engineer GenAI/RAG platform components and evaluation frameworks, design multimodal assistants, and deliver end-to-end AI agents with strong attention to faithfulness, hallucination control, and citation validation.
- 4 years' experience
- Joined July 2026
Skills· 16
Languages
- FrenchFluent
- EnglishAdvanced
- ArabicFluent
Industry experience
- Financial Services
- Manufacturing
- Transportation & Logistics
- Professional Services
- Software & Internet
Work experience· 4 roles
Engineered and delivered GenAI/RAG platform components for a regulated AI fintech, including internal SDKs, ingestion pipelines, retrieval optimization, agent evaluation, and production quality improvements. Built a RAG evaluation and benchmarking framework using human-verified reference data to compare retrieval methods, ingestion strategies, merging algorithms, and Qdrant configurations using recall, precision, and latency—guiding changes to production RAG quality. Delivered production AI agents such as a structure-preserving document translation agent and a multimodal RAG assistant for assembly-line operators, focusing on faithfulness, hallucination detection, and citation validation. Also contributed to applied ML for Geneva Airport, including per-flight passenger forecasting at about 80% accuracy and a demand-capacity decision-support tool to reduce operational congestion.
Provided remote data science consulting services across AI/ML projects (details not specified in the resume).
Data science internship (details not specified in the resume).
Education
Certifications and awards
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