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Zahra A.ZA

Zahra A.

Datenanalystin | BI & SQL

€250/day
Aachen, DE
0-2 years

Average response time: 1 hour

About Zahra

I help companies turn their data into actionable insights. My focus is on structured data analysis using SQL and Python, as well as the development of clear, decision-relevant dashboards in Power BI and Tableau. I work analytically, reliably, and solution-oriented, supporting in particular with data preparation, KPI definition, reporting, and BI projects. Ideal for companies that need short-term analytical support or want to make their data more transparent and usable.
  • Persian

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

Can work on-site
Aachen (up to 50km)

Experience

  • Independent / Training Project
    Data Analysis & Modeling with Python
    October 2025 - February 2026 (4 months)
    • Performed data cleaning, exploratory data analysis, and feature engineering on structured datasets using Python.
    • Applied statistical and machine-learning methods for prediction, segmentation, and pattern detection.
    • Visualized analytical results and summarized insights in a clear, decision-oriented manner.
    • Worked with diverse datasets, including public health, pricing, and financial data.
    Python Exploratory Data Analysis Data Visualization Business Intelligence (BI) Strategy
  • Independent / Training Project
    SQL & Relational Database Design for Analytical Reporting
    October 2025 - January 2026 (3 months)
    • Designed and implemented normalized relational database schemas for analytical use cases (e.g. library management, e-commerce, sales analysis).
    • Developed complex SQL queries for reporting, KPI calculation, and data quality checks.
    • Ensured data consistency, integrity, and efficient query performance.
    • Translated business questions into structured SQL-based analyses.
    SQL Data integration (ETL, ELT and data warehousing) Business Intelligence (BI) Strategy
  • Independent / Training Project
    Power BI Dashboard Development & KPI Reporting
    October 2025 - Today (8 months)
    • Designed and implemented interactive Power BI dashboards for business reporting and decision support.
    • Defined and calculated KPIs using DAX, focusing on performance analysis, trends, and comparisons.
    • Built clean data models and optimized visuals for clarity, usability, and stakeholder understanding.
    • Applied projects to real-world datasets (e.g. sales data, Airbnb pricing, loan application processes).
    Microsoft Power BI Data Visualization Business Intelligence (BI) Strategy

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Education

  • Weiterbildung: Data Science mit Zusatzqualifikation SQL & Power BI
    velpTEC GmbH
    2026
    Weiterbildung: Data Science mit Zusatzqualifikation SQL & Power BI
  • Integrations- und Berufssprachkurs Deutsch
    Sprachenakademie Aachen
    2025
    Integrations- und Berufssprachkurs Deutsch

Certifications

  • Datenbanksysteme mit SQL
    VelpTEC
    2026
    Data Engineer ETL SQL
  • A Hands-On Introduction to Process Mining
    edX
    2024
    Business analysis Data visualization Business intelligence

Skill set

Categories