👋 Hello, World! I'm

Devamanohar
K S

I build |

Computer Science undergraduate passionate about crafting scalable backend systems with Java & Spring Boot, containerized via Docker, and deployed on AWS.

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☕ Java

🍃 Spring Boot

☁️ AWS

🐳 Docker

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Who Am I?

I'm a Computer Science Engineering student at Nehru Institute of Technology, Coimbatore (CGPA 7.9), with a passion for building robust, scalable backend applications.

My expertise centers on Java & Spring Boot ecosystems — designing RESTful APIs, securing them with Spring Security, and persisting data via Hibernate/JPA. I complement this with containerization using Docker and cloud deployment on AWS.

Outside of coding, I sharpen my problem-solving edge on LeetCode (100-day streak 🏅) and HackerRank (5⭐ Java).

7.9 CGPA

5⭐ HackerRank Java

100 Day LeetCode Streak

2+ Projects Built

Education

🎓

B.E. Computer Science Engineering

Nehru Institute of Technology (Autonomous) – Coimbatore

Sep 2023 – May 2027

CGPA: 7.9

📘

Higher Secondary Certificate (HSC)

Bharathiyar Matriculation Higher Secondary School – Attur

May 2023

83.5%

Skills & Technologies

💻

Languages

Java JavaScript

🍃

Frameworks

Spring Boot Spring Security Hibernate

🌐

Web Technologies

HTML CSS

☁️

Cloud Services

AWS EC2 AWS S3 Elastic Beanstalk

🗄️

Databases

MySQL PostgreSQL

🐳

DevOps & Tools

Docker Git & GitHub Maven Postman

🛠️

IDEs & Editors

IntelliJ IDEA VS Code

Experience

Java Backend Intern

CODEC Technologies

Remote Mar 2026 – May 2026

Gained hands-on understanding of Spring Boot framework for building backend applications and REST APIs.
Improved problem-solving and self-learning skills by working independently in a remote environment.

Spring Boot REST APIs Java

Featured Projects

💼

Job Portal Backend

A full-featured job portal backend enabling CRUD operations for job postings, candidates, and employer profiles with JWT-secured RESTful APIs.

Designed RESTful APIs for job creation, updates, application submissions
Implemented relational DB schema with one-to-many & many-to-many joins
Secured endpoints with Spring Security authentication

Java Spring Boot Spring Security SQL

🎓

Student Management System

A comprehensive REST API system for managing student records including courses, marks, and attendance with role-based access control.

Built CRUD APIs to manage student name, course, marks & attendance
Used JPA/Hibernate for seamless Java-to-database interaction
Implemented basic authentication via Spring Security

Java Spring Boot Hibernate/JPA SQL Spring Security

Certifications & Achievements

📜 Certifications

HackerRank

Java (Basic) Certification

Demonstrated fundamental Java programming proficiency

Oct 2025

HackerRank

SQL (Basic) Certification

Validated SQL query writing and relational database skills

Apr 2026

Hackathon

Pinnacle Hacks 2025

Participated in a 24-hour AI-focused hackathon at NIT Coimbatore

Sep 2025

🏆 Achievements

⭐⭐⭐⭐⭐

5-Star Java on HackerRank

Achieved the top-tier 5-star badge in Java, showcasing strong algorithmic thinking and problem-solving skills.