hh-postgres-analyzer: Vacancy Data Cleaning and Analysis on HH.ru using PostgreSQL

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📚 Table of Contents

• 🔎 Project Description
• 🎯 Problem Statement
• 📊 Data Overview
• 🛠 Project Workflow
• 📈 Quality Metrics
• 🧩 Skills Practiced
• 💡 Conclusions

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🔎 Project Description

Vacancy data analysis from HH.ru using PostgreSQL. This project involves data cleaning, pattern discovery, feature engineering, and aggregation for enhanced analysis quality.

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🎯 Problem Statement

Read, analyze, and create a new dataset based on the current data by manipulating and aggregating it.

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📊 Data Overview

• Vacancy data from HH.ru
• Employer information
• Data on salaries, requirements, and working conditions

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🛠 Project Workflow

1. Load the dataframe
2. Get acquainted with the data
3. Perform preliminary data analysis
4. Detailed vacancy analysis
5. Employer analysis
6. Subject-matter analysis
7. Draw final conclusions taking intermediate findings into account

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📈 Quality Metrics

Quality metrics include removing outliers from tables and normalizing graphs accordingly.

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🧩 Skills Practiced

• Reading databases
• Writing correct and optimized SQL queries
• Aggregating various data types
• Joining, grouping, and merging multiple tables

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💡 Conclusions

• ⬆️ Project notebook completion

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If you find this project useful or interesting, I would greatly appreciate a ⭐️⭐️⭐️ on the repository and support for my profile!