AHMEDABAD, INDIA · OPEN TO WORK

Jainish
Prajapati

Backend engineer building efficient, scalable systems with Java & Python. Computer Engineering at GEC Gandhinagar.

Get in touch ↗ GitHub LinkedIn Blogs

3

Work experiences

2

Live projects

Dashboard

Activity & Progress

⌥ GitHub Stats

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Repositories

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Total Stars

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Public Commits

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Followers

◎ LeetCode Stats

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SOLVED

Easy

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Medium

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Hard

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Acceptance Rate: —

Skills

What I work with

Languages

Java

Python

C++

SQL

Frameworks & Tools

Spring Boot

MySQL / MongoDB

Flask

Caffeine Cache

Kafka

Concepts

Object-Oriented Design

RESTful APIs

Data Structures

Database Design

Backend Systems

Experience

Where I've worked

2025

Freelance Backend Developer

Sunrise Mediaa (For PNRImpex)

Developed a Client Portfolio Management System for a sales team — client storage, self-registration, interaction tracking, remarks and status management. Designed database schema, built the backend, and integrated with frontend UI.

BackendDatabase DesignFull StackClient Management

Jul 2023 – Aug 2023

Backend Development Intern

GP Ahmedabad · Ahmedabad, India

Developed a backend admin panel to manage and automate the institute's website, streamlining content management and site administration workflows.

BackendAdmin PanelCMS

Sep 2022 – Oct 2022

Java Intern-Trainee

PrometheanTech · Gandhinagar, India

Learned OOP, JDBC, and Swing UI development. Built a billing system with database connectivity, PDF generation, and email integration.

JavaJDBCSwingPDF Generation

Education

Where I studied

Bachelor of Engineering

Computer Engineering

GEC Gandhinagar · Gujarat Technological University

Diploma in Engineering

Computer Engineering

GP Ahmedabad · Gujarat Technological University

Personal Projects

Things I've built

PRJ_001

HTTP — Server

JavaSocket ProgrammingMultithreading

GitHub ↗

Explores three progressively advanced approaches to handling concurrent client requests, demonstrating trade-offs between simplicity, throughput, and resource efficiency.

Single-Threaded

One request at a time. Simple but unsuitable for concurrent access.

Multi-Threaded

New thread per client. Concurrent handling but resource-intensive under load.

Thread Pool

Fixed reusable threads. Efficient at scale, limits context-switch overhead.

PRJ_002

ZipMe ↗ LIVE

JavaSpring BootBase62Caffeine CachePostgreSQL

Live Demo ↗ GitHub ↗

A URL shortener exploring how shortening services work internally — Base62 encoding, caching strategies, and persistent storage. Short codes are generated by encoding the database's auto-increment ID, guaranteeing collision-free uniqueness.

API Routes

POST/zipmeCreate short URL

GET/ziped/{code}Redirect + increment clicks

GET/info/{code}Metadata & stats

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Collision-Free Encoding

Base62 on the DB's unique auto-increment ID — every code is guaranteed distinct.

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In-Memory Caching

Caffeine with time-based expiry cuts DB hits significantly on redirects.

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Custom Aliases