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Tanisha Mitra

@tanishamitra

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Data Analyst with Python, SQL, and Power BI experience, turning complex data into actionable business insights.

India

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What I'm looking for

I’m looking for a Data Analyst role where I can deliver actionable insights using Python, SQL, and Power BI, collaborate cross-functionally, and keep building ML and security-informed analytics to solve real business problems.

I’m a Data Analyst with a background in software development and hands-on experience in Python, SQL, and Power BI. I transform raw data into meaningful insights through data analysis, visualization, and machine learning techniques, with a strong focus on solving real-world business problems using data-driven approaches.

I’ve built end-to-end work from intern projects—like supervised ML models with Scikit-learn in IBM Watson Studio and AI-focused cybersecurity concepts—to production-style engineering at Cognizant, where I developed and maintained web applications, designed RESTful APIs, and optimized SQL queries. My projects include a Sales Performance Dashboard in Power BI and Customer Segmentation Analysis using RFM, combining SQL data cleaning with Python-driven analysis to generate actionable recommendations.

Experience

Work history, roles, and key accomplishments

Software Engineer Trainee

Cognizant Technology Solutions

Mar 2022 - Sep 2023 (1 year 6 months)

Collaborated with cross-functional teams to develop and maintain web applications using Java and Spring Boot, and designed RESTful APIs for seamless system communication while optimizing SQL queries for improved data retrieval performance.

Java Spring Boot RESTful APIs MySQL SQL Query Optimization Backend Development Web Application Development Agile

Programmer Analyst Trainee Intern

Mar 2022 - Sep 2022 (6 months)

Built microservices for internal applications and collaborated in Agile teams to improve deployment pipelines using Git while working on backend systems with Java, Spring Boot, and MySQL.

Microservices Java Spring Boot MySQL Agile Git Backend Systems

Machine Learning Intern

NIELIT

Jul 2021 - Aug 2021 (1 month)

Completed a remote internship focused on foundational machine learning concepts and Python implementations, using NumPy for data handling and analysis.

Python NumPy Data Analysis Supervised Unsupervised Concepts

Python Developer Intern

Numeric Infosystem Pvt. Ltd.

Jan 2021 - Jun 2021 (5 months)

Developed Python applications integrated with MySQL, working on backend logic, database integration, and debugging to support application functionality.

Python MySQL Backend Development SQL Integrated Database Debugging Application Development

Cybersecurity with AI Intern

NIIT Foundation

Jul 2025 - Present (8 months)

Completed a remote internship focused on cybersecurity concepts integrated with AI, gaining hands-on exposure to cyber threat detection and security fundamentals.

Cybersecurity Concepts Threat Detection Security Operations Risk Management Python Machine Learning

AI & Cloud Intern

Edunet Foundation

Jun 2024 - Present (1 year 9 months)

Built a mini-project involving data preprocessing, visualization, and supervised ML models using scikit-learn, and used IBM Watson Studio to train and deploy AI models.

data preprocessing Data Visualization Supervised Learning scikit learn IBM Watson Python