Available to hire
I am Jose G. del Rio Sanz, an Industrial Engineer with a MSc and a passion for turning data into actionable insights and scalable solutions. I have led data science initiatives across media, retail, and manufacturing, building end-to-end data pipelines, deploying production models, and applying NLP and RAG techniques to real business problems.
Currently I work as a freelance data scientist, delivering chatbots, recommender systems, and document processing services powered by Large Language Models, prompt engineering, vector databases, and microservices. I enjoy collaborating with interdisciplinary teams to translate complex requirements into robust, measurable outcomes.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Language
Spanish; Castilian
Fluent
English
Fluent
Work Experience
Lead Data Scientist at Freelance
November 1, 2024 - PresentLed the deployment of an AI assistant to reduce user inquiry response times by leveraging LLMs, prompt engineering, vector databases (Milvus), LlamaIndex, FastAPI and Docker.
Lead Data Scientist at Freelance
September 1, 2022 - PresentDirected development of chatbots, recommender systems and automatic document processing services leveraging Large Language Models, prompt engineering and knowledge graphs; produced general-purpose chatbot, a fine-tuned LLM-based recommender, and a Retrieval Augmented Generation (RAG) IMS to allocate domain knowledge.
Lead Data Scientist at MoneySuperMarket
August 1, 2022 - September 10, 2025Designed and implemented ML Ops architecture to create end-to-end pipelines and models predicting user engagement and recommendations; included data gathering, model tuning, ELT pipelines, deployment, feature selection and data drift monitoring.
Lead Data Scientist at Reach PLC
January 1, 2021 - September 10, 2025Mentored data scientists; built production-grade recommendation systems and NLP-based deduplication tooling; advanced embeddings service (ALBERT); implemented RL for user behaviour classification; established A/B testing, KPI tracking, and data governance; eliminated data silos and improved engagement.
Senior Data Scientist at Liberty Global Ltd
August 1, 2019 - September 10, 2025Developed successful recommendation systems and voice/semantic search (NLP) using a hybrid approach with word embeddings and ElasticSearch; promoted best practices, TDD, code reviews and ML learning sessions; worked on time series and engagement modeling; implemented CI/CD.
Data Scientist at Fujitsu
September 1, 2018 - September 10, 2025Automation of processes; CI/CD with Jenkins, Docker, Ansible; unit testing and BDD; performance and load testing.
Data Scientist at Tesco Ltd
November 1, 2017 - September 10, 2025Developed a supply chain simulator using time series modelling and Bayesian methods; expanded ML techniques; A/B testing and parallelization; data pipelines (MapReduce/Hadoop).
Modelling and Simulation Platform Lead at Jaguar Land Rover Ltd
September 1, 2016 - September 10, 2025Led a team creating multi-body dynamic models; built tools to improve team performance; created virtual driver models and forecasting for resource availability; developed automatic logging and included gearbox model in production pipeline.
Product Development Engineer at DTR VMS Limited
June 1, 2012 - September 10, 2025Automated data flow and testing infrastructure with Python, MatLab, Visual Basic; automated 24x7 testing; developed instrumentation and software for automated testing; supported department tooling.
Production Manager at General Dynamics Systems
March 1, 2010 - September 10, 2025Managed production, maintenance and shift organization; applied Lean Six Sigma to reduce process variability; defined quality standards and cross-department liaison; safety and equipment maintenance oversight.
Modelling and Simulation Engineer at RENAULT
January 1, 2009 - September 10, 2025Simulated brake systems; automated data processing and reporting; R&D to improve model accuracy and range.
Modelling and Simulation Engineer at RENAULT
January 31, 2009 - September 10, 2025Simulation and modeling of brake systems; automated data processing and reporting; development of algorithms to improve accuracy and efficiency of testing.
Production Manager at General Dynamics Systems
March 31, 2010 - September 10, 2025Production, maintenance and shift organization; implementation of Lean Six Sigma to reduce variability; cost estimation and quality standards; cross-department liaison.
Product Development Engineer at DTR VMS Limited
June 30, 2012 - September 10, 2025Instrumentation, measurement and automated testing tools; automation of IT tasks and data flow; development of automated 24x7 testing and data logging.
Modelling and Simulation Platform Lead at Jaguar Land Rover
September 30, 2016 - September 10, 2025Led a team creating Multi-Body Dynamics models; developed virtual drivers and models balancing real-time and accuracy; automated model logging; resource forecasting; dual-clutch gearbox model.
Data Scientist at Tesco Ltd
November 30, 2017 - September 10, 2025Project management and development of a supply chain simulator; time series modeling; deployment and KPI tracking; data pipelines and ML techniques; A/B testing.
Data Scientist at Fujitsu
September 30, 2018 - September 10, 2025Automation of processes; CI/CD; performance and load testing; development of testing tooling.
Senior Data Scientist at Liberty Global Ltd
August 31, 2019 - September 10, 2025Development of recommendation systems and voice/semantic search; promoted best practices; time series and deployment pipelines.
Lead Data Scientist at Reach PLC
January 31, 2021 - September 10, 2025Mentorship and ML sessions; implementation of recommendation systems; AI strategy; data pipelines; deduplication tooling; embeddings service; A/B testing; KPI tracking.
Lead Data Scientist at MoneySuperMarket
August 31, 2022 - September 10, 2025ML Ops architecture for end-to-end pipelines; model deployment; data gathering; feature selection; data drift; cross-business automation.
Lead Data Scientist at Freelance
October 31, 2024 - September 10, 2025Development of chatbots, recommender systems and automatic document processing services leveraging LLMs, prompt engineering and knowledge graphs.
Lead Data Scientist at Freelance
November 1, 2024 - PresentDeployment of Assistant to reduce response time for product questions; leveraging LLMs, vector databases (Milvus), LlamaIndex, FastAPI and Docker; RAG and NLP.
Lead Data Scientist at Freelance (Independent Contractor)
November 1, 2024 - PresentLed the successful deployment of an AI assistant to reduce user question response times about products and services, leveraging Large Language Models, prompt engineering, vector databases (Milvus), LlamaIndex, FastAPI and Docker. Defined architecture, implemented retrieval augmented generation (RAG) pipelines, and integrated with existing knowledge bases to deliver accurate answers and improved support efficiency.
Lead Data Scientist at Freelance (Independent Contractor)
September 1, 2022 - PresentDeveloped chatbots, recommender systems and automatic document processing services leveraging LLMs, prompt engineering and knowledge graphs. Delivered a general purpose Q&A chatbot, a fine-tuned LLM-based recommender, and a microservice for completion of role descriptions using generative AI (Flask, FastAPI, RAG, NLP).
Lead Data Scientist at MoneySuperMarket
August 1, 2022 - September 10, 2025Designed and implemented end-to-end MLOps pipelines to predict user engagement and recommendations. Covered data gathering, model tuning, ELT pipelines, deployment, feature selection, model tracking, and data drift monitoring. Enabled cross-business reuse via a generalised pipeline with BigQuery ML, Dataflow, Kubernetes, Vertex AI, Terraform, Docker, and API services.
Lead Data Scientist at Reach PLC
January 31, 2021 - September 10, 2025MentoredData Scientists, led ML sessions and PR reviews; implemented Recommendation Systems; planned AI strategy; built data pipelines; developed production deduplication tool (NLP) for editors; deployed embeddings service (ALBERT) as a service; applied Reinforcement Learning for user behavior classification; conducted A/B testing and automated KPI tracking; eliminated data silos and increased engagement.
Data Scientist at Fujitsu
September 1, 2018 - September 10, 2025Automation of processes; CI/CD using Jenkins; TDD/BDD; performance and load testing.
Senior Data Scientist at Liberty Global Ltd
August 1, 2019 - September 10, 2025Development of recommendation systems and Voice/semantic search (NLP) using a hybrid approach with word embeddings and ElasticSearch. Promoted best practices (TDD, code reviews, pair programming) and led ML sessions; implemented time series and engagement models; CI/CD via Azure pipelines.
Data Scientist at Tesco Ltd
November 1, 2017 - September 10, 2025Led the supply chain simulator project using time series modeling and Bayesian methods; improved performance and reduced memory constraints; developed supervised/unsupervised ML techniques; conducted A/B testing and parallelization (MapReduce, Hadoop).
Modelling and Simulation Platform Lead at Jaguar Land Rover Ltd
September 1, 2016 - September 10, 2025Managed a team creating multi-body dynamic models for the Evoque platform; developed tools to improve team performance; created virtual drivers and neural networks to balance real-time response vs accuracy; automated logging for models; forecast system for resource availability; contributed gearbox modeling in the production pipeline.
Product Development Engineer at DTR VMS Limited
June 1, 2012 - September 10, 2025Instrumentation, measurement and quality control; automated IT tasks and data processing using Visual Basic, Python and Matlab; developed automation for 24x7 testing; authored instrumentation software and data logging tools.
Production Manager at General Dynamics Systems
March 1, 2010 - September 10, 2025Managed production, maintenance and shift organization; implemented Lean Six Sigma to reduce variability; cost estimation and quality standards; cross-functional coordination; health and safety oversight.
Modelling and Simulation Engineer at RENAULT
January 1, 2009 - September 10, 2025Simulation and validation of brake systems; automated data processing and reporting; R&D activities to improve model accuracy and range; used Matlab, Python, C++, SQL and Visual Basic.
Education
MSc Industrial Engineering at Industrial Engineering School, University of Valladolid
January 11, 2030 - September 10, 2025Erasmus Exchange Program at Ecole Nationale Supérieure d’Arts et Métiers (ENSAM), Bordeaux, France
January 11, 2030 - September 10, 2025MSc Industrial Engineering at Industrial Engineering School (University of Valladolid)
January 11, 2030 - September 10, 2025MSc Industrial Engineering at Industrial Engineering School (University of Valladolid)
January 11, 2030 - September 10, 2025Erasmus Student Exchange at Ecole Nationale Supérieure d’Arts et Métiers (ENSAM), Bordeaux, France
January 11, 2030 - September 10, 2025Qualifications
5-Day Gen AI Course (Google)
January 1, 2025 - September 10, 2025Cyber Security
January 1, 2024 - January 1, 2024Finetuning Large Language Models
January 1, 2023 - September 10, 2025Evaluating and Debugging Generative AI
January 1, 2023 - September 10, 2025Building systems with ChatGPT API
January 1, 2023 - September 10, 2025ChatGPT Prompt Engineering for Developers
January 1, 2023 - September 10, 2025MSc Industrial Engineering – First Class Honours
January 11, 2030 - September 10, 2025Degree Project: Control and Design of a Digital Electric Meter
January 11, 2030 - September 10, 2025Six Sigma Green Belt
January 11, 2030 - September 10, 2025Industry Experience
Media & Entertainment, Telecommunications, Retail, Software & Internet, Transportation & Logistics, Other, Financial Services, Manufacturing, Professional Services
Creation of an end-to-end automated pipeline for production ready machine learning models.
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