Open to opportunities

Andreas Kiortsis

@andreaskiortsis

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Data-driven statistician and analyst specializing in Excel, R, and business insights to optimize performance.

Greece

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What I'm looking for

I seek analyst roles where I can apply statistical and Excel expertise to drive business insights, work in collaborative teams, and contribute to data-driven decision-making.

I am an open-minded statistics graduate with hands-on experience in business analysis, data engineering, and customer-facing technical support. I specialize in conducting in-depth data analysis of sales, financial, and performance metrics, developing reports that identify trends and deliver actionable recommendations.

My background includes roles as a Business Analyst, Statistician/Analyst, Data Entry Specialist/Analyst, and Customer Service Agent, where I combined advanced Excel, R, SPSS and Python skills to ensure data quality, perform budget and pricing analyses, and support field sales teams with market execution guidance.

I bring strong communication and problem-solving abilities, experience delivering technical support across remote and on-site environments, and a commitment to data accuracy and validation that helps teams make better decisions and improve margins.

Experience

Work history, roles, and key accomplishments

Current

Business Analyst

Current

Hell

Oct 2023 - Present (2 years)

Conducting in-depth analysis of sales, financial, and performance metrics to drive business insights, develop reports identifying trends, and present actionable findings while ensuring data quality through validation and cleansing.

Data Analysis Excel)Data Validation Reporting Financial Analysis Excel

Data Entry Specialist

PoliHome

Dec 2021 - Oct 2023 (1 year 10 months)

Managed and configured product database exports and performed bulk data imports with advanced Excel transformations, analyzed market trends for pricing optimization, and provided technical support for retail locations.

Excel)Data Imports Data Cleaning Pricing Analysis Technical Support Market Analysis Database Management Excel

Customer Service Agent

Teleperformance

Mar 2020 - Aug 2021 (1 year 5 months)

Evaluated customer issues, developed solutions, and resolved technical problems across software and hardware to maintain high-quality service and customer satisfaction.

Customer Service Technical Support Troubleshooting Communication Multichannel Support

Education

Degrees, certifications, and relevant coursework

University of Piraeus

Bachelor of Science, Statistics and Insurance Science

2015 - 2018

Activities and societies: Worked one-on-one with students needing individualized attention; taught English language classes (Beginner A1 to Intermediate B1) while studying.

Completed a Bachelor's degree in Statistics and Insurance Science with coursework in probability theory and statistical software such as R and SPSS.