Portrait of Mahdieh Sajadi

Mahdieh Sajadi

Data analyst in Vancouver, BC

I build Power BI reporting, prepare and validate data with SQL, Python and Excel, and explain what the numbers do and don't support. My background in environmental engineering taught me to check a result against the system that produced it.

Current role
Data Analyst, CogniParse (since 2024)
Focus
Power BI reporting, SQL, data validation
Background
M.S. Environmental Engineering, University of Tehran
Looking for
Data analyst roles in Vancouver or remote

Projects

All projects

Dashboard · Climate

Canadian weather trends, 2021–2025

A three-page Power BI report comparing rainfall, snowfall and temperature extremes in Vancouver, Calgary, Toronto and Montreal.

  • Power BI
  • Excel
  • Power Query

Visualization · Global development

Global health and wealth over time

An animated bubble chart of life expectancy against income across countries, sized by population and colored by continent.

  • Python
  • Pandas
  • Matplotlib

Visualization · Climate

Global temperature as a climate spiral

NASA's monthly global temperature record through 2025, drawn around the calendar so the warming trend and the seasons show up together.

  • Python
  • Pandas
  • Matplotlib
  • NASA GISTEMP

Experience

Full resume
  1. Jan 2024 – Present

    Data Analyst

    CogniParse · Remote

    Power BI dashboards that track reporting accuracy, model performance and extraction output, with SQL and Excel data preparation and quality checks behind them.

  2. Feb 2026 – Jul 2026

    Volunteer Data Analyst Assistant

    Vancouver Region Educational Services · Vancouver, BC

    Data organization and documentation work inside the organization's internal reporting systems.

  3. May 2021 – Jun 2023

    Environmental Data Analyst

    Iranian Aluminum Company (IRALCO) · Arak, Iran

    Trend and outlier analysis of environmental and operational plant data, plus Power BI reports used by operations and management.

Skills

Reporting & BI

  • Power BI
  • Semantic models
  • KPI design
  • IBM Cognos
  • Advanced Excel
  • Power Query

Programming

  • SQL
  • Python
  • Pandas
  • NumPy
  • Matplotlib
  • R

Analysis

  • Exploratory analysis
  • Trend analysis
  • Outlier detection
  • Statistical analysis
  • Performance measurement

Data management

  • Data validation
  • ETL
  • MySQL
  • SQLite
  • Data governance
  • Documentation
  • Azure

Contact

I'm looking for data analyst roles in Vancouver or remote. Send me an email or a message on LinkedIn.

LinkedIn GitHub