Open to opportunities

Nedelina Diener

@nedelinadiener

Junior Data Analyst focused on data validation, cleansing, and reporting to improve data quality and support business decisions.

Poland

Message

What I'm looking for

I’m looking for a role where I can apply data validation, cleansing, and quality controls to deliver accurate reporting and reduce errors—preferably in a remote, collaborative environment with clear compliance expectations and room to grow.

I’m a Data Analyst with experience in data validation, reporting, operational analysis, and data quality improvement in remote environments. I identify anomalies, apply data quality controls, and clean datasets to ensure accuracy, consistency, and compliance.

Across e-commerce and admin-focused roles, I managed sales, inventory, and customer data, analyzed order and product trends, and produced performance reporting. I’m also comfortable coordinating high-volume remote operations, maintaining accurate records, and collaborating with teams to prioritize data corrections and documentation.

Experience

Work history, roles, and key accomplishments

Current

Administrative & English Instructor

Current

Preply

Mar 2023 - Present (3 years 3 months)

Managed scheduling, documentation, and administrative records in a high-volume remote environment, providing responsive customer support via chat and email. Maintained structured student progress and engagement data for reporting and ensured administrative record accuracy and completeness.

Customer Support Reporting Data Quality Assurance Scheduling

Administrative & English Instructor

Tutlo

Dec 2023 - Feb 2025 (1 year 2 months)

Coordinated lesson schedules and handled customer communications across international time zones in a remote setting. Maintained accurate performance tracking and administrative records.

Scheduling Customer Communications Performance Tracking Data Quality Assurance Time Management

Data & Administrative Analyst

Candelina

Jan 2022 - Nov 2024 (2 years 10 months)

Managed and maintained sales, inventory, and customer data for an online retail business, ensuring accuracy across internal records, online platforms, and reporting spreadsheets. Analyzed order trends and product performance and produced reports on sales, returns, and customer enquiries while supporting order tracking and issue resolution.

Reporting Microsoft Excel