BALAJI M
Chennai
Summary
Detail-oriented Python Developer with 2 years’ experience in data-driven applications and ETL pipelines. Skilled in Python, SQL, PostgreSQL, and machine learning, focusing on data preprocessing, model development, and deployment. Developed REST APIs using FastAPI and deployed applications with Docker, seeking to leverage expertise in data science or machine learning.
Overview
2
2
years of professional experience
1
1
Certification
Work History
System Engineer
Tata Consultancy Services
Chennai
01.2025 - Current
- Automated document classification using deployed models, enhancing accuracy in document handling.
- Built classification models for document categorization using TensorFlow and Keras.
- Created OCR-based ETL workflows for extracting structured data from unstructured sources.
- Managed scanned documents from clients to enhance operational efficiency.
Assistant System Engineer
Tata Consultancy Services
Chennai
01.2024 - 12.2025
- Developed Python-based automation tool to streamline migration from legacy to modern frameworks.
- Transformed application metadata for analysis, enhancing data accessibility.
- Developed Power BI dashboards with data models, enabling informed decision-making.
- Identified redundancies and set complexity metrics, streamlining migration effort estimation.
Education
Bachelor of Engineering - Mechatronics
Thiagarajar College Of Engineering
Tamil Nadu05-2023
High School Diploma -
Sethurajan Padma Matriculation School
Madurai, Tamil Nadu05-2019
Skills
- Machine Learning
- Python
- Pandas
- Numpy
- Scikit-learn
- TensorFlow
- XGBoost
- Statistics
- PostgreSQL
- FastAPI
- AWS
- Docker
- Git
- Power BI
- Matplotlib
Certification
- ETL Developer with Python, Edureka
- Cloud Practitioner, Amazon Web Services
Projects
- Customer Churn Predictor - Built an XGBoost model to predict customer churn. Exposed predictions through a FastAPI based REST service. Containerized the solution using Docker and deployed an end-to-end ML pipeline.
- E-commerce Customer Behavior Analysis - Cleaned and transformed customer data using Pandas. Loaded processed data into PostgreSQL. Built analytical datasets for reporting. Created Power BI dashboards to analyze customer behavior.
Timeline
System Engineer
Tata Consultancy Services
01.2025 - Current
Assistant System Engineer
Tata Consultancy Services
01.2024 - 12.2025
Bachelor of Engineering - Mechatronics
Thiagarajar College Of Engineering
High School Diploma -
Sethurajan Padma Matriculation School