Mathu Malathi G
Summary
Experienced in transforming data into actionable insights by loading, cleaning, and analyzing data using SQL and Python. Skilled in building interactive dashboards in Tableau, and training ML/DL models to solve real-world business problems.
Overview
7
7
years of professional experience
1
1
Certification
Work History
Software Engineer
HCL Technologies
01.2020 - 07.2024
- Worked on real-time SAP SuccessFactors HR projects, handling data extraction, validation, and transformation using SQL and Python.
- Developed HR dashboards in Tableau and Excel to visualize key metrics, like attrition, headcount, and employee performance, for stakeholders.
- Cleaned and analyzed large volumes of HR data to improve data quality and support strategic decision-making.
- Built and deployed ML models (e.g., attrition prediction, performance analysis) to solve business problems and optimize HR processes.
- Collaborated with cross-functional teams in Agile environments to deliver end-to-end data solutions aligned with business goals.
Process Executive
Cognizant
08.2017 - 04.2019
- Designed and managed reporting frameworks to evaluate marketing performance across multiple channels.
- Acted as the single point of contact for all data and analytics needs within the project.
- Led QA processes—created and reviewed QA plans, ensured data accuracy, and resolved reporting issues proactively.
- Contributed to project planning, maintained documentation, and collaborated with teams and stakeholders for smooth project execution.
Education
Master of Computer Applications (MCA) -
Bharathiar University
Coimbatore, Tamil Nadu08.2022
Bachelor of Computer Science (B.Sc.) -
PSGR Krishnammal College for Women
Coimbatore, Tamil Nadu04.2017
Skills
- Programming and data analysis: Python (Pandas, NumPy, Matplotlib, Seaborn), SQL
- Domain experience: SAP SuccessFactors (HR tech), analytics (Excel-based reporting)
- Data visualization: Tableau (dashboards, KPI reports), Excel (pivot tables, VLOOKUP, charts)
- Database & Tools: MySQL, JIRA, Git
- Data science and ML: data preprocessing, feature engineering, model training (regression, classification), Scikit-learn
- Data handling: data cleaning, data validation, reporting
- Project methodologies: Agile (Scrum), documentation, requirement gathering, cross-functional collaboration
Certification
- Data Scientist Certification – Simplilearn, Apr 2025 Skills: Data analysis, Tableau, statistics
- Introduction to MS Excel – Simplilearn, May 2025 Skills: Excel Pivot, VBA Basics
- Foundations: Data, data, everywhere – Google, Dec 2024 skills: data analytics, data-driven decision making
Projects
Sales performance tracker – regional overview | Tableau, Excel
• Created a sales dashboard to monitor revenue trends, top products, and regional performance
• Helped identify growth opportunities, and optimize sales strategy
Retail sales data analysis – SQL project | MySQL
• Wrote complex SQL queries to analyze product sales, revenue, and customer behavior from a retail dataset
• Delivered insights on top-selling items and seasonal patterns
Customer churn prediction – data science project | Python (Pandas, Seaborn, Scikit-learn)
• Conducted EDA and built a machine learning model to predict customer churn
• Improved retention strategies by identifying key churn indicators
Timeline
Software Engineer
HCL Technologies
01.2020 - 07.2024
Process Executive
Cognizant
08.2017 - 04.2019
Master of Computer Applications (MCA) -
Bharathiar University
Bachelor of Computer Science (B.Sc.) -
PSGR Krishnammal College for Women
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