Hey there 👋
I'm Periyakaruppan, I build Secure, Scalable & Intelligent Systems.
Member Technical Staff @ Zoho | Full Stack Developer
Periyakaruppan Nagappan
Yrs Work Exp
Projects
Academic Rank
Crafting Digital Excellence
Passionate about building software that makes a difference. I combine technical depth with a user-centric approach to create impactful solutions.
Backend Engineer
Building robust, scalable server-side systems
Security-Focused
Implementing best practices for secure applications
Full Stack Developer
End-to-end application development
Performance Optimizer
Tuning queries and improving system efficiency
Years Experience
Major Projects
Research Publication
Academic Rank
With a foundation in Computer Science and hands-on experience at Zoho Corporation, I specialize in building enterprise-grade applications that prioritize security, performance, and scalability.
My Career Journey
From intern to engineer, building impactful solutions at every step.
Member Technical Staff
Zoho - Vulnerability Manager Plus
Collaborated with Endpoint Framework team developing security features, optimizing database performance, and implementing secure coding practices for enterprise vulnerability management.
Project Trainee
Zoho - Unified Endpoint Management and Security (UEMS)
Developed open APIs for patch and vulnerability modules, completed product training, and participated in security challenges.
Summer Intern
Zoho Corporation
Selected through On-Campus Recruitment. Mastered advanced Java concepts and implemented secure database interactions.
Featured Work
A selection of projects that showcase my technical skills and problem-solving abilities.
Early Detection of Chronic Kidney Disease (CKD)
Capstone Design Project with IBM - Machine learning system for early detection of chronic kidney disease using Random Forest Classifier.
Delayed CKD diagnosis caused by time-consuming and costly traditional methods leads to missed early treatment opportunities.
Developed a machine learning-based prediction model using Random Forest Classifier, integrated with Flask and hosted on IBM Cloud for faster and accurate early detection.
Achieved 99.16% accuracy by optimizing data preprocessing techniques including handling missing values and feature selection.
Alumni Tracking System
MERN Stack application enabling alumni registration, verification, and peer communication for colleges.
Colleges lack efficient systems for alumni registration, verification, and maintaining connections with graduates.
Built a web-based system using React.js for alumni search and registration, with MongoDB for flexible data storage and WebSockets for real-time communication.
Enabled secure alumni management with efficient search capabilities, event postings, and peer communication features.
E-Commerce Buyer and Seller Application
Full-stack e-commerce platform with Google authentication, Stripe payments, and server-side rendering.
Need for a responsive, secure e-commerce platform with modern authentication and payment processing.
Built fully responsive application using Next.js with SSR for SEO, NextAuth for Google authentication, Stripe for payments with webhooks, and Redux for state management.
Achieved seamless cross-device experience with improved SEO, secure authentication, and reliable real-time order management.
Smart Data Visualizer - Anubhuti NGO
Data visualization platform for managing underprivileged student records with interactive charts and Excel data migration.
NGO teachers struggled with managing student data in Excel sheets, lacking visual insights and easy data entry methods.
Developed a solution allowing direct form uploads and Excel data transfer, with interactive Chart.js visualizations for actionable student insights.
Provided teachers in rural areas with accessible, responsive platform for data-driven decision making across all devices.
Published Work
Contributing to the academic community through innovative research.
Design and Development of Automatic Call Handling (ACH) Framework
Springer Nature • Conference Paper • NGNDAI 2025
Abstract
This research presents a mobile application prototype that detects incoming calls, determines user speed using real-time GPS tracking, and intelligently blocks or allows calls based on emergency priority to minimize driver distraction.
Methodology
- 1Real-time GPS tracking for speed detection
- 2Emergency priority classification algorithm
- 3Incoming call interception and handling
- 4Performance optimization across device tiers
Key Findings
- 98.6% model accuracy in call classification
- 389.9ms response time for 50th percentile devices
- 178ms response time for 25th percentile devices
- Efficient call handling with minimal driver distraction
Technical Expertise
A comprehensive toolkit built through years of hands-on experience.
Programming Languages
Web Development
Databases
Cloud & DevOps
Technical Tools
Libraries & Frameworks
Methodologies
Soft Skills
Credentials & Learning
Continuous learning through industry-recognized certifications.
Java, Python, C, C++ and RDBMS PostgreSQL Training
IIT Bombay
via Spoken Tutorial Project
HTML, CSS, and Javascript for Web Developers
Johns Hopkins University
via Coursera
Programming for Everybody (Getting Started with Python)
University of Michigan
via Coursera
Getting Started with AI on Jetson Nano
NVIDIA
via Deep Learning Institute
Awards & Achievements
Milestones that mark the journey of excellence.
Academic Topper Award - University Rank 1
Thiagarajar College of Engineering
Secured 1st rank out of 150 students in Bachelor of Engineering in Computer Science and Engineering.
Code For Good 2022 - First Place
JP Morgan Chase & Co
Won first place out of 100 highly competitive teams selected from numerous participants across India for solving NGO problem statement.
Best Project Demo Stall - React.js
GLUGOT FS'tival 2021
Awarded for providing an MVP web-based solution on Alumni Tracking at the college technical festival.
Garrett STEM Merit Scholarship
Garrett Foundation
Awarded prestigious scholarship for academic excellence, selected as 1 of only 15 students from the entire college.
Academic Foundation
Where the journey of learning and excellence began.
Thiagarajar College of Engineering
Bachelor of Engineering
Computer Science and Engineering
Madurai, India • Jun 2019 - Mar 2023
CGPA
University Rank
Relevant Coursework
Academic Achievements
Community Impact
Building communities and empowering the next generation of developers.
FS'tival Organizer and Mentor
GNU/Linux User Group of TCE (GLUGOT)
Organized the Workshop event and mentored teams in building foundational knowledge.
Coder's Club Coordinator
Thiagarajar College of Engineering
Curated and posted weekly coding challenges on HackerRank, reviewed submissions and clarified doubts for students.
Let's Connect
Have a project in mind or want to discuss opportunities? I'd love to hear from you.
Get in Touch
Personal Email
periyakaruppannagappan2020@gmail.com
Work Email
periyakaruppan.nn@zohocorp.com
Location
Chennai, India