Arnau S.

Decision Systems Consultant | Forecast, Optimization & AI for Business

Many companies already have data. The real challenge is turning that data into better business decisions. That is where I help: I design decision systems that combine data science, forecasting, mathematical optimization, artificial intelligence and business automation to solve real operational and strategic problems. Every project starts with understanding how decisions are made inside the business before selecting the right analytical or AI-based solution. Whether the objective is improving demand planning, optimizing inventory, automating repetitive processes, reducing financial risk or building AI-powered workflows, my focus is always the same: delivering practical solutions that create measurable business value. 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵 Demand Forecasting & Predictive Analytics • Sales forecasting • Multi-horizon demand forecasting • Inventory planning • Time series modelling • Scenario analysis Supply Chain & Operations Optimization • Inventory optimization • Production planning • Resource allocation • Process optimization • Mathematical optimization models Pricing & Financial Analytics • Pricing optimization • Revenue analytics • Credit risk modelling • Financial forecasting • Decision support models AI Agents & Business Automation • AI Agents • Claude API • OpenAI API • LLM-powered workflows • Process automation • Intelligent business assistants • Workflow automation Business Intelligence & Decision Support • KPI dashboards • Executive reporting • Interactive analytics • Automated reporting • Business intelligence platforms 𝗦𝗲𝗹𝗲𝗰𝘁𝗲𝗱 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 - Designed a multi-horizon demand forecasting system for a growing e-commerce business to improve purchasing and inventory planning. - Developed a credit risk prediction model supporting consumer lending decisions within the financial sector. - Built a business intelligence platform that automated KPI reporting, customer monitoring and operational analytics. - Designed AI-powered workflows that automate business processes using Large Language Models and modern automation platforms. - Developed analytical and optimization models supporting production planning and operational decision-making in manufacturing environments. 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 Python • SQL • PySpark • Microsoft Fabric • Azure • Databricks • Power BI • Anaplan • Machine Learning • Deep Learning • Operations Research • Mathematical Optimization • Forecasting • GitHub Actions • Docker • n8n • Claude API • OpenAI API • AI Agents • Data Pipelines 𝗛𝗼𝘄 𝗜 𝘄𝗼𝗿𝗸 1. Understand the business problem before writing a single line of code. 2. Design the simplest solution capable of solving the problem effectively. 3. Build scalable systems that integrate naturally into existing business processes. 4. Deliver measurable business impact through better planning, automation and decision-making. I enjoy working closely with clients, challenging assumptions, exploring alternatives and translating complex analytical problems into practical business solutions. If you're looking for someone who combines strong analytical skills, mathematical thinking, AI expertise and a genuine focus on business value, I'd be happy to discuss your project.