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Pao Castrejon

@paocastrejon

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Strategic Data Scientist driving operational KPIs and cost reduction.

Mexico

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What I'm looking for

I seek a data-driven role where I can apply Python and Power BI to optimize operations and supply chains, drive measurable KPI improvements, and work within collaborative teams focused on continuous process improvement.

I am a Strategic Data Scientist with a Master’s degree and over 10 years of experience optimizing business processes and supply chains through data-driven solutions.

I specialize in transforming operational data into predictive KPIs and dashboards using Python and Power BI, with a track record of delivering up to 90% cost reductions and 60% improvements in customer satisfaction.

My background includes roles in Tier-1 global companies where I led operations, supply chain coordination, and quality system re-engineering using Six Sigma and ISO 9001 frameworks, consistently achieving high KPI compliance and process improvements.

I contribute independent data projects and hackathon work focused on predictive modeling and inventory optimization, and I bring a collaborative, results-oriented approach to drive measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Independent Data Scientist

Current

GitHub Portfolio

Jan 2024 - Present (2 years 2 months)

Developed predictive models and statistical analyses for inventory optimization and personal finance; led AI-driven hackathon projects for SMEs resulting in prototype solutions.

Python predictive modeling Statistical Analysis Machine Learning GitHub Hackathon Experience Data Visualization Power BI

Data Analyst

Conduent

Mar 2023 - Jul 2025 (2 years 4 months)

Analyzed dentist affiliation data for a MetLife project to identify behavior patterns and predict service demand; developed efficiency and quality KPIs and ensured dataset integrity for strategic reports.

Python Pandas Data Cleaning KPIs predictive modeling Power BI EDA

Process Engineer & Quality Coordinator

Larrabezua Grupo Empresarial

Led re-engineering of the Quality Management System (ISO 9001) and implemented cost-reduction projects using operational data analysis to improve efficiency.

Quality Management ISO 9001 Six Sigma Data Analysis Continuous Improvement

Export & Supply Chain Coordinator

Norma Group

Coordinated international logistics and data flow for clients including Ford and Honeywell, maintaining 98% KPI compliance through process monitoring and optimization.

Supply Chain Management Logistics Coordination KPIs Data Analysis Excel Process Optimization Stakeholder Management

Operations Supervisor

DHL Express

Managed operational performance indicators to achieve a 98% on-time delivery rate and reduced customer complaints by 60% through quality and process improvements.

Operations Management Performance Metrics SLA Management Lean Process Improvement