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I recently completed a Postgraduate Certificate in Business Analytics and have a strong foundation in data analytics, data cleaning, and visual storytelling. I’ve built predictive models, dashboards, and automated reporting workflows using SQL, Python, R, and DAX. I am passionate about helping businesses unlock value from data through clear visualizations, data models, and stakeholder-focused insights. I’m known for my positive outlook and for uplifting colleagues while delivering measurable results.…I recently completed a Postgraduate Certificate in Business Analytics and have a strong foundation in data analytics, data cleaning, and visual storytelling. I’ve built predictive models, dashboards, and automated reporting workflows using SQL, Python, R, and DAX. I am passionate about helping businesses unlock value from data through clear visualizations, data models, and stakeholder-focused insights. I’m known for my positive outlook and for uplifting colleagues while delivering measurable results.

Armando Herrera

Data Analyst, Data Scientist, Data Visualizer, +2

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I recently completed a Postgraduate Certificate in Business Analytics and have a strong foundation in data analytics, data cleaning, and visual storytelling. I’ve built predictive models, dashboards, and automated reporting workflows using SQL, Python, R, and DAX. I am passionate about helping businesses unlock value from data through clear visualizations, data models, and stakeholder-focused insights. I’m known for my positive outlook and for uplifting colleagues while delivering measurable results.…I recently completed a Postgraduate Certificate in Business Analytics and have a strong foundation in data analytics, data cleaning, and visual storytelling. I’ve built predictive models, dashboards, and automated reporting workflows using SQL, Python, R, and DAX. I am passionate about helping businesses unlock value from data through clear visualizations, data models, and stakeholder-focused insights. I’m known for my positive outlook and for uplifting colleagues while delivering measurable results.

Available to hire

I recently completed a Postgraduate Certificate in Business Analytics and have a strong foundation in data analytics, data cleaning, and visual storytelling. I’ve built predictive models, dashboards, and automated reporting workflows using SQL, Python, R, and DAX.

I am passionate about helping businesses unlock value from data through clear visualizations, data models, and stakeholder-focused insights. I’m known for my positive outlook and for uplifting colleagues while delivering measurable results.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Work Experience

Postgraduate Student in Business Analytics at Eastern Institute of Technology

June 1, 2024 - January 1, 2025

Applied machine learning models (classification, regression) using Python and R to solve real business case studies. Designed and deployed Power BI dashboards to visualise sales, operations, and customer segmentation. Developed statistical models to predict outcomes and improve decision-making in simulated business environments. Worked in Agile teams on analytics projects, simulating consultancy environments with real-world datasets.

Data Analyst at Tecnova

February 1, 2016 - November 1, 2023

Automated monthly reports using Excel (VBA and Power Query), reducing manual workload by 40% and improving delivery time by 3 days. Created dynamic Power BI dashboards to monitor KPIs in software development, QA, and HR, enabling leadership to make faster, data-backed decisions. Extracted and analysed large datasets using complex SQL queries, supporting performance evaluations, project profitability analysis, and resourcing strategies. Delivered insights that supported a 30% increase in project throughput and a 17% growth in QA service lines through improved resource planning. Led root cause analysis of underperforming business units, contributing to operational efficiency improvements and cost reduction initiatives.

Data Analyst at Siglo BPO

November 1, 2014 - December 1, 2015

Designed custom Excel reports with advanced formulas and automated macros, delivering tailored KPIs for clients in finance, insurance, and food sectors. Improved report accuracy by 30% by implementing enhanced data validation and cleansing processes, reducing decision-making errors. Transformed raw SQL data into actionable insights, supporting clients' operational performance reviews and strategic planning. Partnered with department heads to define reporting requirements and deliver dashboards that improved operational visibility and efficiency.