MAHESH PATIL
Bengaluru
Summary
Data Analyst with 2.7 years of experience in data extraction, transformation, visualization, and automation using Python, SQL, Tableau, and Power BI. Proficient in building data pipelines, conducting statistical analysis, and delivering insights to improve operational efficiency, customer retention, and profitability. Adept at collaborating with cross-functional teams, and converting data into actionable business decisions.
Overview
3
3
years of professional experience
Work History
Data Analyst
Delta India
Pune
10.2024 - 10.2025
- Developed and maintained a data pipeline in Jupyter Notebook to handle interval-based incoming datasets, ensuring seamless preprocessing including data cleaning, duplicate removal, and standardization.
- Applied logical reasoning to tag free-text data (Complaint, Cause, Correction) with predefined categories from a taxonomy for Root Cause, Symptom_Condition, Symptom_Component, Fix_Condition, and Fix_Component.
- Conducted Exploratory Data Analysis (EDA) using Python libraries (Matplotlib, Seaborn) to identify the most frequent symptoms and underlying patterns in the data.
- Created interactive dashboards and visualizations in Tableau to present insights on symptom trends and root causes to stakeholders.
- Ensured high data quality and repeatability by automating tagging and preprocessing workflows, enabling timely updates as new data arrived.
Data Analyst
Quest Global
Bengaluru
09.2023 - 08.2024
- Built scalable Tableau reporting infrastructure for marketing & product teams.
- Created cohort analysis dashboards with parameters improving retention insights by 17%.
- Automated processing of billions of records from Redshift and PostgreSQL, saving $273K annually.
- Developed stored procedures, triggers, and optimized SQL views integrating 19+ data sources.
- Performed SQL-driven data cleaning, transformation, and advanced dataset structuring.
Trainee Engineer
Quest Global
Bengaluru
02.2023 - 08.2023
- Automated KPI frameworks using SQL, contributing to 120% organic traffic growth.
- Analyzed survey datasets and visualized insights improving customer engagement by 18%.
- Managed end-to-end customer return data pipeline improving accuracy and reducing TAT by 15%.
- Built Power BI dashboards tracking customer behavior and operational KPIs.
Education
MCA -
REVA UNIVERSITY
Bengaluru08-2022
BCA -
GOGTE COLLEGE OF COMMERCE
Belgaum07-2018
Skills
- SQL
- Excel
- Tableau
- Python
- Amazon Web Services (AWS EC2, S3)
- Git
- Data cleaning
- Tableau visualization
- Power BI dashboards
- Data collection
- ETL processes
- Inventory analysis
Timeline
Data Analyst
Delta India
10.2024 - 10.2025
Data Analyst
Quest Global
09.2023 - 08.2024
Trainee Engineer
Quest Global
02.2023 - 08.2023
MCA -
REVA UNIVERSITY
BCA -
GOGTE COLLEGE OF COMMERCE