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Konstantia Zioga

@konstantiazioga

Data analytics professional in retail and life sciences, using sales, inventory, and health data to support better decisions.

Greece

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What I'm looking for

I'm seeking opportunities in Data Analytics, Healthcare Analytics, Business Analytics, Clinical Data, or Research Data roles.

At Holland & Barrett, I use sales, inventory, and product performance data to support ordering decisions and improve stock management. I also review operational reports and KPIs related to sales, stock control, and store performance.

As a freelance dietitian and nutritionist, I collect and analyze client health, nutrition, and lifestyle data. I track progress and interpret findings to support personalized nutrition interventions and evaluate outcomes.

At Outlier AI, I evaluated AI-generated content against structured quality and accuracy criteria, identifying inconsistencies and factual errors. I documented evaluations and provided corrective feedback.

At Public Institute of Vocational Training (DIEK), I contributed to research activities for an EU-funded circular bioeconomy project, supporting information gathering, analysis, and reporting. I've also completed the Google Data Analytics Professional Certificate, developing practical skills in SQL, R, spreadsheets, and Tableau.

Experience

Work history, roles, and key accomplishments

Current

Dietitian – Wellness Advisor – Assistant store manager

Current

Holland & Barrett

Jul 2024 - Present (2 years 4 months)

Support day-to-day retail operations, combining customer service, inventory management, and team leadership responsibilities. Monitor inventory levels, analyze sales and product performance data, and produce operational reports and KPIs.

Inventory Management Data Analysis Sales Analysis Team Leadership Workforce Planning KPI Reporting Process Improvement Customer Service

Current

Freelance Dietitian – Nutritionist

Current

Self-Employed

Sep 2018 - Present (8 years 2 months)

Collected, organized, and analyzed client health, nutrition, and lifestyle data. Used standardized assessment tools and maintained structured records to monitor client progress and support personalized nutrition interventions.

Data Collection Data Analysis Client Monitoring Nutrition Assessments Report Writing Communication Skills

AI Systems Trainer (Greek Language)

Outlier AI

Jun 2024 - Oct 2024 (4 months)

Evaluated AI-generated content using structured quality and accuracy criteria. Reviewed large volumes of information, identified inconsistencies and factual errors, and provided corrective feedback.

Data Quality Assurance Analytical reasoning Content Evaluation Documentation Feedback

Researcher / Trainer (ERASMUS+ Project)

Public Institute of Vocational Training (DIEK)

Feb 2022 - Feb 2024 (2 years)

Contributed to research activities within an EU-funded circular bioeconomy project. Assisted with research documentation, information gathering, and project reporting, and guided students in structured research methodology.

Research Methods Documentation Project Reporting Data Analysis Training

Teaching & Examination Roles

Public Institute of Vocational Training & EOPPEP

Jan 2019 - Dec 2023 (4 years 11 months)

Delivered courses in Nutrition and Sports Nutrition using evidence-based content. Assessed learner performance using standardized evaluation criteria and maintained accurate assessment documentation.

Teaching Curriculum Delivery Assessments Documentation Nutrition