Daniel Viejo
Senior Data Scientist
Bilbao, Autonomous Community of the Basque Country, Spain
Summary
👤
Senior🎓
Top SchoolDaniel Viejo is a Senior Data Scientist and Generative AI engineer with six years of experience building production-grade RAG systems, chatbots, and analytics platforms across Azure and AWS for clients including AstraZeneca, Repsol and the Spanish Ministry of Digital Transformation. He blends strong mathematical grounding (MSc in AI, BScs in Data Analytics and Mathematical Sciences) with hands-on expertise in fine-tuning, LLM orchestration, graph-augmented retrieval, and scalable MLOps, backed by multiple Microsoft, AWS and GCP certifications. At AstraZeneca he led a global analytics platform used by 1,500+ stakeholders and prototyped a GraphRAG PoC that balances hybrid retrieval latency and accuracy. A practical teacher and mentor, he has developed generative AI curricula for universities and industry, and his background in business analytics helps him translate complex models into measurable customer and societal impact. Notably, he combines a production-first mindset with research-level rigor—his MSc thesis implemented and evaluated RAG for legal queries, a thread that recurs across his commercial work.
6 years of coding experience
1 year of employment as a software developer
Bachelor of Science (BS) in Business Data Analytics (1º Promotion) Business Artificial Intelligence and Programming, Bachelor of Science (BS) in Business Data Analytics (1º Promotion) Business Artificial Intelligence and Programming at Mondragon UnibertsitateaMathematical Sciences Mathematics and Computer science, Mathematical Sciences Mathematics and Computer science at University of EssexMaster of Science (MSc) in Artificial Intelligence Computer Science, Master of Science (MSc) in Artificial Intelligence Computer Science at Universidad Internacional de La RiojaHigh School Diploma Technology, High School Diploma Technology at Maristak Bilbao
English, Basque, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (34)
open-source10
javascript9
adapter8
generative-adversarial-network8
lstm7
deep-reinforcement-learning6
lora6
deep-learning6
python6
reinforcement-learning6
fine-tuning5
huggingface5
matplotlib5
pytorch5
visualization4
Programming languages (5)
Github contributions (5)
DanielPuentee/DanielPuentee
Jan 2023 - Apr 2025
Config files for my GitHub profile.
Contributions:2 PRs, 18 pushes, 2 branches in 2 years 3 months
configconfig-files
DanielPuentee/Quiz-Java
Oct 2022 - Jan 2023
Contributions:30 commits, 1 push in 3 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.