Summary
Overview
Work History
Education
Skills
Certification
Librariesandframeworks
Databases
Backendprogramming
Webservers
Toolsknown
Timeline
Generic
Vijayakumar U

Vijayakumar U

Puducherry

Summary

Highly skilled NLP Engineer with 5.5 years of strong background in designing and implementing machine learning models for natural language processing. Strengths include proficiency in Python, TensorFlow, PyTorch and deep learning algorithms, with particular skill in text classification, sentiment analysis and chatbots development. Demonstrated success in improving model performance through innovative feature engineering and algorithm tuning techniques. Track record of contributing to collaborative environments while also flourishing independently.

Overview

5
5
years of professional experience
1
1
Certification

Work History

Big Data Developer

Infosys
Chennai
05.2024 - Current
  • Created custom scripts to automate the process of extracting, transforming and loading data into databases.
  • Designed and developed distributed systems leveraging Apache Kafka and other technologies.
  • Performed exploratory data analysis using Python libraries such as Pandas and Scikit-learn.
  • Built real-time streaming architectures utilizing Apache Storm or Apache Spark Streaming.
  • Provided technical guidance to junior team members on best practices of designing efficient ETL pipelines.
  • Evaluated different technologies based on their suitability for specific use cases while taking cost considerations into account.

ETL Developer

Infosys
Chennai
06.2022 - 04.2023
  • Project overview: As an ETL developer at Overstock, I was responsible for designing, developing, and maintaining extract, transform, and load processes.
  • I have analyzed business user needs and translated them into technical solutions. I developed ETL programs using scripting languages like Python, shell scripting, and SQL.
  • I used APIs to retrieve data from third-party sources and wrote multiple SQL scripts to transform and load data using GCP BigQuery.
  • Identified and set up batch processes (Control-M) to automate the data movement.
  • Developed and implemented data validation procedures to ensure accuracy and integrity of the data in the data warehouse.
  • Worked closely with Business Analysts, System Analysts, Data Architects in gathering requirements for developing ETL solutions.
  • Provided technical support to other team members regarding ETL development activities.

Machine Learning Engineer/GCP Application Developer

TATA Consultancy Services
White Town
07.2019 - 05.2022
  • Project Overview: Model Management is a product where we solve end-to-end Data Science problems with a UI.
  • It is powered with almost all the functionalities needed for solving ML problems, such as Classification or Regression.
  • Worked on structured data, timeseries models, and image classification models with univariate, bivariate, multivariate, and explainer.
  • Powered the product with preprocessing and hyper-tuning configuration.
  • Developed a standalone application to analyze and visualize data from legacy databases with RestAPI configurations.
  • Developed dashboards with complete storytelling capability.
  • Developed predictive models using various machine learning algorithms and techniques such as linear regression, logistic regression, decision trees, support vector machines, neural networks, and ensemble methods.
  • Built web applications to interact with trained models for real-time predictions.
  • Evaluated model performance by creating metrics such as accuracy, precision, recall, F1 score and AUC.
  • Optimized existing models to improve accuracy and reduce computational time.

Education

B. Tech - ECE

Sri Manakula Vinayagar Engineering College
Puducherry

Higher Secondary -

V.O.C. Govt. Hr. Sec. School
Puducherry

SSLC -

Societe Progressiste High School
Puducherry

Skills

  • NLP
  • ETL development
  • Machine Learning
  • Big data technologies
  • Shell scripting
  • SQL expert
  • Relational databases
  • Full-stack development
  • GCP bigquery
  • AWS
  • PySpark Development
  • EMR

Certification

  • Completed Google cloud Essential course in Udemy.
  • Full stack web development course in Udemy.
  • Python GOLD: HackerRank.
  • Certified A2 delf associate

Librariesandframeworks

  • Pandas
  • Numpy
  • Matplotlib
  • Seaborn
  • Flask
  • Celery
  • Shap
  • Lime
  • Springboot
  • pyspark

Databases

  • MySQL
  • PostgreSQL

Backendprogramming

Python

Webservers

  • Apache
  • Nginx

Toolsknown

  • Git
  • Postman
  • Jenkins
  • Autosys
  • Control-M
  • Airflow

Timeline

Big Data Developer

Infosys
05.2024 - Current

ETL Developer

Infosys
06.2022 - 04.2023

Machine Learning Engineer/GCP Application Developer

TATA Consultancy Services
07.2019 - 05.2022

B. Tech - ECE

Sri Manakula Vinayagar Engineering College

Higher Secondary -

V.O.C. Govt. Hr. Sec. School

SSLC -

Societe Progressiste High School

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