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Avishek Chatterjee

@avishek6295

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Data Analyst | Turing raw data into actionable insights | Driving informed decision makings

India

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What I'm looking for

I seek a role that fosters growth, encourages innovation, and values data-driven decision making.

I am an insight driven Data Analyst with hands on experience in transforming data into actionable insights. My journey has been enriched by certifications from leading organizations such as BCG, Accenture, Google, and IIT-KGP. I specialize in Python, SQL, Power BI, Advanced Excel, and Machine Learning, which allows me to drive business growth through impactful data analysis.

One of my notable projects involved analyzing a large-scale E-commerce dataset, where I utilized Python and SQL to identify key business trends and customer behavior. This analysis resulted in a 12% improvement in marketing strategies and a 30% boost in sales. Additionally, I developed an interactive Walmart sales dashboard using Power BI, which enhanced performance tracking and led to a significant increase in operational efficiency.

Experience

Work history, roles, and key accomplishments

E-commerce Dataset Analysis

Self Employed

Apr 2025 - Present (2 months)

Analyzed a large-scale E-commerce dataset using Python and SQL, identifying key business trends, customer behavior, and sales drivers, resulting in a 12% improvement in marketing strategies and a 30% sales boost. Leveraged Python to clean, preprocess, and analyze 1M+ data rows, utilizing Pandas, NumPy, Matplotlib, and Seaborn, resulting in the identification of key patterns that improved decision-

Python SQL Pandas NumPy Matplotlib SeaBorn Data Analysis Marketing Strategies Sales Drivers

Walmart Sales Dashboard

Self Employed

Mar 2025 - Present (3 months)

Enabled an interactive Power BI Dashboard to visualize and analyze key sales metrics and trends, designing impactful reports that enhanced performance tracking and led to a 16% increase in operational efficiency. Developed a Power BI dashboard that boosted stakeholder's decision-making efficiency by 18%.

Microsoft Power BI Sales Metrics Data Visualization Performance Tracking Dashboard Development Data Analysis

Education

Degrees, certifications, and relevant coursework

Coursera

Google Advanced Data Analytics & Business Intelligence, Data Analytics & Business Intelligence

Grade: 94%

Completed the Google Advanced Data Analytics & Business Intelligence program through Coursera. Achieved a strong understanding of advanced data analysis techniques and business intelligence principles.

Jodhpur National University

Bachelor of Arts, English Honours

Grade: 71%

Graduated with a Bachelor of Arts in English Honours from Jodhpur National University. Developed strong analytical and communication skills through the study of literature and language.

Indian Institute of Technology, Kharagpur

AI4ICPS Certificate Program, Artificial Intelligence and Machine Learning

Completed the AI4ICPS certification at the Indian Institute of Technology, Kharagpur. Applied supervised and unsupervised learning techniques to real-world data, boosting model accuracy by 18% and improving classification efficiency and feature selection precision by 25%.

Deloitte

Data Analytics Certification, Data Analytics

Completed a Data Analytics certification with Deloitte. Analyzed a dataset of over 10,000 records, leading to a 20% improvement in anomaly detection efficiency. Optimized Excel for data cleaning and classification, improving dataset accuracy by 95% for forensic analysis.