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Liudmyla-D/README.md

👋 Hi, I'm Liudmyla

I love bringing order to data — organizing it, spotting patterns, optimizing processes, and making KPIs transparent for decision-making.

I’m developing as a Data Analyst / BI Analyst with a focus on practical business analytics, reporting automation, SQL, Python, and dashboarding.

Goal: Data Analyst / BI Analyst

🔭 Featured Projects

  • Metrocar: Funnel & Demand Analysis (SQL + Tableau) — funnel drop-offs, wait time → cancellations, peak demand hours & operational recommendations.
    👉 Repo: metrocar-analysis

  • Python Learning Journey — homework, mini projects, and hands-on practice with Python for data analysis: Pandas, NumPy, visualization, SQL integration, API/ETL, statistics, A/B testing, and basic machine learning.
    👉 Repo: python-learning-journey

  • SQL Case Study: Online Store (Installment Plans, Mobile Phones) — data cleaning & analysis queries using JOINs, CTEs, window functions, and KPI calculations.
    👉 Repo: SQL-analytics-installment

  • Excel Sales Analytics Dashboard — four interactive dashboards with KPIs, trends, managers’ performance, correlations, and business insights: ₴294.9M revenue, 48.6% markup, 15 AR days.
    👉 Repo: Excel-Analytics-Dashboard

🧰 Core Tools & Skills

  • Data Analysis: Python, Pandas, NumPy, Excel, Google Sheets
  • BI & Visualization: Power BI, Tableau, Looker Studio (learning), Matplotlib, Seaborn, Plotly
  • SQL: JOINs, CTEs, window functions, query optimization basics (T-SQL / PostgreSQL)
  • Analytics: KPIs, funnel analysis, A/B testing, hypothesis testing, reporting automation
  • Business Domains: logistics, supply planning, inventory management, fintech analytics
  • Process & Documentation: SOPs/regulations, data requirements, organizational structures
  • Collaboration Tools: Jira, Confluence, Miro

🤝 What I’m Looking For

Data Analyst / BI Analyst roles where I can build practical analytics, find insights, automate reporting, and improve business efficiency.

📬 Get in Touch

Pinned Loading

  1. Excel-Analytics-Dashboard Excel-Analytics-Dashboard Public

    Excel dashboard for sales KPIs (Power Query/Power Pivot). Four interactive dashboards + insights.

  2. SQL-analytics-installment SQL-analytics-installment Public

    SQL project of installment contracts: expected vs. paid, debt, and overdue buckets (point-in-time).

    TSQL

  3. sql-advent-calendar-2025 sql-advent-calendar-2025 Public

    24 SQL Advent Calendar 2025 solutions (SQLite). Window functions, CTEs, joins, aggregations

  4. metrocar-analysis metrocar-analysis Public

    Funnel & demand analysis: drop-offs, cancellations, wait time impact (SQL, Tableau, Google Sheets)