Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m Ioanna Athina Varvaropoulou, a Junior Data Analyst who loves turning raw data into clear, actionable insights. Over the past two years I’ve focused on data collection, cleaning, analysis, and reporting, building automated dashboards in Excel and Power BI to streamline decision-making and improve efficiency. I enjoy collaborating across marketing, operations, and CX teams to translate metrics into visuals and strategies that boost customer experience and business performance.…I’m Ioanna Athina Varvaropoulou, a Junior Data Analyst who loves turning raw data into clear, actionable insights. Over the past two years I’ve focused on data collection, cleaning, analysis, and reporting, building automated dashboards in Excel and Power BI to streamline decision-making and improve efficiency. I enjoy collaborating across marketing, operations, and CX teams to translate metrics into visuals and strategies that boost customer experience and business performance.

Ioanna Athina Varvaropoulou

Data Analyst, Marketing Analyst, Content Producer





I’m Ioanna Athina Varvaropoulou, a Junior Data Analyst who loves turning raw data into clear, actionable insights. Over the past two years I’ve focused on data collection, cleaning, analysis, and reporting, building automated dashboards in Excel and Power BI to streamline decision-making and improve efficiency. I enjoy collaborating across marketing, operations, and CX teams to translate metrics into visuals and strategies that boost customer experience and business performance.…I’m Ioanna Athina Varvaropoulou, a Junior Data Analyst who loves turning raw data into clear, actionable insights. Over the past two years I’ve focused on data collection, cleaning, analysis, and reporting, building automated dashboards in Excel and Power BI to streamline decision-making and improve efficiency. I enjoy collaborating across marketing, operations, and CX teams to translate metrics into visuals and strategies that boost customer experience and business performance.

Available to hire

I’m Ioanna Athina Varvaropoulou, a Junior Data Analyst who loves turning raw data into clear, actionable insights. Over the past two years I’ve focused on data collection, cleaning, analysis, and reporting, building automated dashboards in Excel and Power BI to streamline decision-making and improve efficiency.

I enjoy collaborating across marketing, operations, and CX teams to translate metrics into visuals and strategies that boost customer experience and business performance.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Language

Greek, Modern

Fluent

English

Advanced

French

Beginner

Work Experience

Junior Data Analyst at Onside (bwin.gr, sportingbet.gr, vistabet.gr)

November 1, 2023 - November 6, 2025

Developed and automated reporting dashboards (Excel VBA, Power BI), reducing report generation time by 30%; conducted data quality assessments and validation checks to ensure trustworthy reporting; collected and analyzed customer survey and behavioral data with Medallia, improving data accuracy and reliability by 25%. Delivered actionable insights on customer trends and campaign performance, contributing to a 15% increase in marketing effectiveness and a 20% uplift in customer satisfaction. Built structured KPI reports for leadership to support workforce planning, SLA monitoring, and operational efficiency; translated raw data into visualizations and presentations for executives and cross-functional teams; collaborated with marketing, operations, and CX stakeholders.

Customer Support Supervisor at Onside (bwin.gr, sportingbet.gr, vistabet.gr)

October 1, 2023 - October 1, 2023

Led a team of 20 representatives; designed and monitored KPI reports (AHT, FRT, SLA compliance) to improve SLA adherence and provide leadership with real-time performance visibility; provided KPI-driven insights to support workforce planning and capacity forecasting; implemented call monitoring and reporting that reduced average handling time by 15%; identified operational inefficiencies and implemented process improvements to boost productivity and first-resolution rates.

Earlier Experience – Technical Support & Shift Leader Roles at Forthnet Group, Apple, Wind Telecommunications

June 1, 2016 - June 1, 2016

Logged, categorized, and analyzed incident data to identify recurring technical issues and trends; tracked SLA compliance and produced regular management reports; collaborated with cross-functional teams to escalate and resolve complex technical cases; developed training content and mentored colleagues; provided customer-facing support ensuring accurate communication and high satisfaction.