I am a detail-oriented data analyst with 2+ years of experience in Excel, SQL, Python, Power BI, and Tableau. I specialize in cleaning, transforming, and analyzing complex datasets to uncover trends, validate data quality, and build clear reports and dashboards. I have a strong foundation in KPI development, reporting automation, and data storytelling, and I am known for accuracy and problem-solving. I enjoy collaborating with cross-functional teams to translate data insights into actionable business strategies and to present findings clearly to both technical and non-technical audiences. My work includes building dashboards, conducting exploratory analyses, and supporting marketing and operations decisions with data-driven recommendations.

Sona Heydari

I am a detail-oriented data analyst with 2+ years of experience in Excel, SQL, Python, Power BI, and Tableau. I specialize in cleaning, transforming, and analyzing complex datasets to uncover trends, validate data quality, and build clear reports and dashboards. I have a strong foundation in KPI development, reporting automation, and data storytelling, and I am known for accuracy and problem-solving. I enjoy collaborating with cross-functional teams to translate data insights into actionable business strategies and to present findings clearly to both technical and non-technical audiences. My work includes building dashboards, conducting exploratory analyses, and supporting marketing and operations decisions with data-driven recommendations.

Available to hire

I am a detail-oriented data analyst with 2+ years of experience in Excel, SQL, Python, Power BI, and Tableau. I specialize in cleaning, transforming, and analyzing complex datasets to uncover trends, validate data quality, and build clear reports and dashboards. I have a strong foundation in KPI development, reporting automation, and data storytelling, and I am known for accuracy and problem-solving.

I enjoy collaborating with cross-functional teams to translate data insights into actionable business strategies and to present findings clearly to both technical and non-technical audiences. My work includes building dashboards, conducting exploratory analyses, and supporting marketing and operations decisions with data-driven recommendations.

See more

Language

English
Fluent

Work Experience

Data Analyst at Sina Development Company
April 1, 2025 - April 1, 2025
Designed and optimized SQL queries (joins, aggregations, CTEs) to extract and validate data, improving reporting accuracy and reducing query time by 25%. Cleaned and transformed multi-source auction data (CSV, Excel, SQL), improving reliability of monthly reports and reducing manual errors by 20%. Automated recurring reporting workflows with Python (Pandas/NumPy), cutting processing time from hours to minutes and ensuring timely delivery to stakeholders. Built interactive dashboards in Tableau and Power BI (DAX measures, drill-throughs, filters) to track sales, customer activity, and performance KPIs across regions. Conducted exploratory and ad hoc analyses on customer bidding behavior, identifying seasonal trends and anomalies that supported marketing promotions and boosted participation by 18%. Partnered with cross-functional teams to align data insights with business strategies, presenting findings through clear, visual storytelling to technical and non-technical audiences. Produced

Education

Bachelor's degree at Shahrood University of Technology
January 11, 2030 - November 5, 2025
Certificate of Achievement at Humber College
January 11, 2030 - November 5, 2025

Qualifications

Python for Data Analytics
January 11, 2030 - November 5, 2025
Tableau Desktop & Prep Complete Course
January 11, 2030 - November 5, 2025
Microsoft Power BI Desktop for Business Intelligence
January 11, 2030 - November 5, 2025

Industry Experience

Software & Internet, Professional Services, Retail