Hana Iftekhar

Data Analyst

Kolkata, West Bengal, India 1+ yrs exp 88 · Excellent

About

Data Analyst with hands-on experience in data analysis, data cleaning, data validation, reporting, business intelligence, and dashboard development. Proficient in SQL, Python, Microsoft Excel, Power BI, Pandas, NumPy, Matplotlib, and Seaborn. Experienced in analyzing 50,000+ records, identifying trends and anomalies, building interactive KPI dashboards, and applying statistical and machine learning techniques to translate raw data into actionable business insights.

Skills & Expertise (34)

SQL Intermediate

7.3/10

Years Exp

Python Intermediate

7.3/10

Years Exp

Pandas Intermediate

7.0/10

Years Exp

Data Analysis Intermediate

7.0/10

Years Exp

Data Cleaning Intermediate

7.0/10

Years Exp

Power BI Intermediate

7.0/10

Years Exp

Data Visualization Intermediate

7.0/10

Years Exp

KPI Reporting Intermediate

6.5/10

Years Exp

Machine Learning Beginner

5.5/10

Years Exp

Statistical Analysis Beginner

5.5/10

Years Exp

Seaborn Positive & happy person Logistic Regression Decision Trees Model Evaluation Business Reporting Insight Generation Problem Solving Quality assurance Cross-Functional Collaboration stakeholder communication Matplotlib LOOKUP functions Pivot Tables Advanced Excel Microsoft Excel Interactive Reports Dashboard Development Anomaly Detection Data Quality Data Transformation Data Validation Exploratory data analysis NumPy

Work Experience

Data Analyst

Collibet Info Service Pvt Ltd

Aug 2025 - Present

Clean, transform, validate, and analyze financial and operational datasets using SQL and Python to identify trends, outliers, anomalies, and data-quality issues. Develop interactive Power BI dashboards and reports to monitor key performance indicators (KPIs), operational metrics, and data-quality trends for cross-functional stakeholders. Automate data extraction and transformation activities using Pandas, improving the consistency and reliability of data prepared for reporting and analysis. Perform data validation and quality checks to support data integrity, reporting accuracy, and compliance-focused analytical workflows. Collaborate with cross-functional teams to understand reporting requirements, investigate discrepancies, and translate business needs into data-driven reporting solutions.

Data Annotation & Quality Analyst (Contract)

iMerit

May 2022 - Dec 2022

Maintained 95%+ labeling accuracy across large annotation batches, supporting reliable machine learning training datasets. Performed systematic quality checks to identify and correct labeling inconsistencies before dataset handoff, improving data reliability. Worked with structured datasets and followed detailed quality guidelines to maintain accuracy, consistency, and process compliance. Supported downstream machine learning workflows through accurate data annotation, validation, and quality assurance.