Bertrand B.

Need a data scientist who can turn complex business problems into practical AI and analytics solutions? I am a data science consultant with 15+ years of experience helping organizations improve forecasting, pricing, decision-making, and operational performance through machine learning, optimization, and AI. What differentiates me: 🔸 15+ years of experience in data science, machine learning, and optimization 🔸 PhD in Physics 🔸 Experience analyzing petabytes of data at CERN, contributing to the discovery of the Higgs boson 🔸 Lead enterprise data science, machine learning, and AI initiatives for a global technology company 🔸 Expert-Vetted on Upwork 🔸 100% Job Success Score 🔸 Trusted advisor to executives and business leaders 🔸 Experience across banking, retail loyalty programs, media measurement, distribution, logistics, and early-stage startups Areas of expertise: 🔸 Predictive analytics and machine learning 🔸 Forecasting and demand planning 🔸 Pricing optimization and revenue management 🔸 Mathematical optimization (mixed-integer programming, non-linear optimization) 🔸 NLP and LLM-powered applications 🔸 Custom analytics platforms and dashboards 🔸 Python, PySpark, Scikit-Learn, XGBoost, SQL, Snowflake, Databricks, Google Cloud, APIs, and automation Examples of recent projects: 🔸 Procurement Optimization Designed a mixed-integer optimization solution to determine optimal purchasing quantities across multiple suppliers while accounting for inventory requirements, price breaks, and free-shipping thresholds. The solution saves the client thousands of dollars each week through optimized purchasing decisions. 🔸 Forecasting and Demand Planning Designed and implemented custom forecasting models to predict future demand and support resource allocation, inventory planning, and business decision-making. 🔸 Lead Scoring and Propensity Modeling Developed machine learning models to predict lead conversion likelihood, enabling sales teams to prioritize high-value opportunities. Models were deployed into production environments integrated with SQL databases. 🔸 Pricing Simulation and Optimization Built pricing simulation and optimization tools to estimate the impact of pricing decisions on profitability, customer churn, and growth. Implemented optimization models to maximize revenue and profit while respecting business constraints. 🔸 AI-Powered Decision Support Designed custom analytics applications and decision-support systems combining machine learning, optimization, and business rules to support strategic decision-making. 🔸 Automation and Desktop Applications Developed lightweight desktop applications that automate repetitive business processes and integrate with Google Sheets, CSV/Excel files, APIs, and internal systems. 🔸 Interactive Analytics Platforms Built custom Streamlit dashboards and analytics applications for forecasting, pricing optimization, reporting, and AI-driven decision support. Applications can be integrated with Snowflake, APIs, databases, Google Sheets, and machine learning models. Whether you need a predictive model, forecasting solution, optimization engine, AI application, or a trusted advisor to help shape the solution, I would be happy to discuss your project.