Piyush Mahajan Portfolio

About Me

A Senior System Engineer with expertise in Machine Learning, having worked in India to develop scalable system-driven solutions. Currently pursuing advanced studies in the US focusing on Data Mining, Data Warehousing, Product Management, Cloud Computing, and Business Intelligence. This combines practical engineering skills with strategic business insights to solve complex problems efficiently.

Technical & Domain Skills

Java Python SQL C/C++ Spring Boot MySQL MongoDB PostgreSQL Google Cloud Platform AWS IoT Core Tableau Power BI Machine Learning NLP Streamlit Product Management Project Management Agile & Scrum Data Analysis Statistical Analysis Data Visualization Business Intelligence (BI) Predictive Modeling TensorFlow Scikit-learn

Projects

Smart Resume Matcher / Job Recommender

Python, NLP, Sentence-BERT, Streamlit, Cosine Similarity

Built an NLP-powered job recommender and resume matcher that parses resumes to recommend relevant jobs using cosine similarity between embeddings. Features a dynamic Streamlit dashboard for ranking and filtering jobs.
IBM Employee Attrition Analytics

SQL, MySQL, MongoDB, Data Warehousing

Developed a data warehousing and analytics solution for analyzing employee attrition factors in IBM's HR data, enabling strategic retention efforts.
Market Research Firm Data Analysis

SQL, Data Modeling, DFM

Created a Dimensional Fact Model (DFM) for advanced analytical reporting to analyze customer purchasing behavior across multiple product lines.

Experience

Senior System Engineer at Infosys

Sep 2021 to Dec 2023

Led development of cloud migration solutions using GCP and AWS, optimized ETL pipelines using SQL and Spring Boot, improved scalability of data-driven applications, mentored junior engineers, and collaborated cross-functionally to deliver business intelligence tools.
Machine Learning Engineer at Industrial Control and Appliance

Jun 2020 to Sep 2021

Developed predictive fault detection and automation systems using ML algorithms to enhance smart appliance robustness and energy efficiency.
Graduate Intern at Mansai Biomedical

Jun 2018 to Jun 2019

Integrated IoT sensors for vehicle tracking and logging to improve operational logistics and fleet management efficiency.

Education

MS in Information Technology

Lindsey Wilson University (Expected Dec 2025)
MS in Business Analytics

University of Texas at Arlington (Completed Dec 2024)
Bachelor of Engineering in Computer Science

University of Pune (Completed May 2021)

Resume

Contact

Email: pmahajan97@gmail.com

Phone: 737-328-3935

LinkedIn: linkedin.com/in/piyush-mahajan-b554aa124

GitHub: github.com/piyushm97