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I am a data analyst with a degree in Statistics and over two years of experience in applied data analysis, programming, and process automation. I specialize in multivariate analysis, big data, and AI, with experience analyzing large-scale datasets to produce strategic reports and optimize workflows. I have a strong background in statistics and machine learning, working with R, Python, SQL, Power BI, and advanced Excel for KPI analysis, dashboard development, and clear communication of insights to support data-driven decision-making.…I am a data analyst with a degree in Statistics and over two years of experience in applied data analysis, programming, and process automation. I specialize in multivariate analysis, big data, and AI, with experience analyzing large-scale datasets to produce strategic reports and optimize workflows. I have a strong background in statistics and machine learning, working with R, Python, SQL, Power BI, and advanced Excel for KPI analysis, dashboard development, and clear communication of insights to support data-driven decision-making.

Alejandro Torrecilla Martínez

Data Analyst, Data Scientist, Data Visualizer, +7

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I am a data analyst with a degree in Statistics and over two years of experience in applied data analysis, programming, and process automation. I specialize in multivariate analysis, big data, and AI, with experience analyzing large-scale datasets to produce strategic reports and optimize workflows. I have a strong background in statistics and machine learning, working with R, Python, SQL, Power BI, and advanced Excel for KPI analysis, dashboard development, and clear communication of insights to support data-driven decision-making.…I am a data analyst with a degree in Statistics and over two years of experience in applied data analysis, programming, and process automation. I specialize in multivariate analysis, big data, and AI, with experience analyzing large-scale datasets to produce strategic reports and optimize workflows. I have a strong background in statistics and machine learning, working with R, Python, SQL, Power BI, and advanced Excel for KPI analysis, dashboard development, and clear communication of insights to support data-driven decision-making.

Available to hire

I am a data analyst with a degree in Statistics and over two years of experience in applied data analysis, programming, and process automation. I specialize in multivariate analysis, big data, and AI, with experience analyzing large-scale datasets to produce strategic reports and optimize workflows.

I have a strong background in statistics and machine learning, working with R, Python, SQL, Power BI, and advanced Excel for KPI analysis, dashboard development, and clear communication of insights to support data-driven decision-making.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Spanish; Castilian

Fluent

English

Advanced

French

Advanced

Work Experience

Data Analyst at Especial S.A.U. – COTESA

February 1, 2025 - October 1, 2025

Conducted data analysis for projects with direct impact on business decision-making. Automated processes using Excel and LimeSurvey, achieving an 85% reduction in actual processing time. Performed data analysis and visualization using R, SQL, Excel, SPSS, and Power BI. Designed and validated questionnaires, supervised fieldwork, and ensured data quality control. Cleaned, validated, and maintained databases to ensure consistency and reliability. Defined and interpreted KPIs and prepared statistical reports for decision support. Integrated and analyzed over 3 years of official INE data (2022–2025), combining multiple statistical sources. Project: Hotel occupancy analysis in Spain using Power BI; created interactive dashboard with multi-level filters; built KPIs across national, regional, provincial, and destination levels.

Data Analyst at Centro de Observación y Teledetección Especial S.A.U. – COTESA, Valladolid, Spain

February 1, 2025 - October 1, 2025

Conduje análisis de datos para proyectos con impacto directo en la toma de decisiones empresariales. Automatización de procesos usando Excel y LimeSurvey, logrando una reducción del 85% en el tiempo de procesamiento real. Realicé análisis de datos y visualización usando R, SQL, Excel, SPSS y Power BI. Diseñé y validé cuestionarios, supervisé trabajo de campo y aseguré el control de calidad de datos. Limpié, validé y mantuve bases de datos para asegurar consistencia y fiabilidad. Definí e interpreté KPIs y preparé informes estadísticos estratégicos de apoyo a decisiones. Integración, limpieza y análisis de más de 3 años de datos oficiales de INE 2022-2025, combinando múltiples fuentes estadísticas.

Data Analyst at Centro de Observación y Teledetección Especial S.A.U. – COTESA

February 1, 2025 - October 1, 2025

Conducted data analysis for projects with direct impact on business decision-making and market research. Automated processes using Excel and LimeSurvey, achieving an 85% reduction in actual processing time. Performed data analysis and visualization using R, SQL, Excel, SPSS, and Power BI. Designed and validated questionnaires, supervised fieldwork, and ensured data quality control. Cleaned, validated, and maintained databases to ensure consistency and reliability. Defined KPIs and interpreted KPIs and prepared statistical reports for decision support.