Hi, I'm Sanjaikumar

I'm a |

With 4+ years of programming experience and 3+ years of professional work, I'm passionate about exploring new technologies and collaborating with enthusiastic, innovative people. Let's build and create together!

Sanjaikumar Veerasamy

About Me

Sanjaikumar Veerasamy

Full Stack Developer with a passion for creating impactful applications

I am a passionate Full Stack Developer with over 4+ years of programming experience and 3+ years of professional work. My journey in the world of development has equipped me with a diverse skill set and a deep understanding of both frontend and backend technologies.

I specialize in building robust web applications using modern technologies like React, Next.js, Node.js, and more. I enjoy solving complex problems and creating intuitive, user-friendly interfaces that deliver exceptional user experiences.

Clean Code

I write clean, maintainable code following best practices and design patterns.

Problem Solver

I enjoy tackling complex problems and finding elegant solutions.

Team Player

I collaborate effectively with teams to achieve project goals.

Continuous Learner

I'm constantly learning new technologies and improving my skills.

My Skills

Frontend

React JS90%
Next JS85%
HTML/CSS95%
SCSS / Tailwind90%
Storybook JS80%

Backend

Node JS85%
Nest JS80%
Express JS90%
Fastify75%

Database

MongoDB85%
Mongoose ORM85%
PostgreSQL50%
Redis50%

DevOps

GitHub Actions50%
AWS50%
Docker50%
Nginx50%

Tools

Git90%
GitHub90%
Figma75%
Subabase50%

Languages

JavaScript80%
TypeScript80%

Languages I Speak

TamilNative
EnglishFluent
KanadaConversational
MalayalamBasic

Work Experience

Full Stack Developer

Plenitude IT

July 2022 - Present
Tamil Nadu, India

Working as a Full Stack Developer, building and maintaining web applications using modern technologies like React, Next.js, Node.js, and MongoDB. Responsible for developing both frontend and backend components, implementing new features, and ensuring optimal performance.

Key Achievements:
  • Developed and maintained multiple client projects with high satisfaction rates
  • Optimized application performance resulting in 40% faster load times
  • Delived projects within deadlines, ensuring timely releases
  • Collaborated with cross-functional teams to define, design, and ship new features
  • Implemented best practices in code quality and testing, reducing bugs by 30%

Freelancer

Self-employed

July 2021 - July 2022
Remote

Worked on 2+ projects, developing websites and web applications for own usage. Managed the entire development lifecycle from requirement gathering to deployment and maintenance.

Key Achievements:
  • Successfully delivered 2+ projects for own skill development and usage
  • Built responsive and accessible web applications
  • Implemented SEO best practices resulting in improved search rankings

My Projects

Used Computer (UDC) Rewamp

Used Computer (UDC) Rewamp

March 2025 - Till Now

Used Computer is a Malaysian digital platform offering two core services: Smart Disposal and Smart Trading. Smart Disposal: Users can sell their e-waste to local collection centers for eco-friendly recycling and payment. Smart Trading: buy and sell electronic products with price negotiation, making tech exchange sustainable and affordable.

Technologies Used:

Next.jsNode.jsMongoDBNest JS

Key Features:

  • Smart disposal flow Major bug fixes and performance improvements
  • Implemented Smart Trading feature for tech exchange by enabling users to buy/sell secondhand or Brand new products with price negotiation features.
  • Enhanced product listing with categories, filters (price, brand, condition), and full-text search support.
  • 8 + more features
Mobilab2u

Mobilab2u

July 2024 - Till Now

Mobilab2U is an on-demand healthcare platform that connects patients with medical professionals and diagnostic partners. It allows users to book time-sensitive medical tests from the comfort of their homes, eliminating the need to visit hospitals, labs, or clinics. Patients can also schedule doctor consultations through the portal and receive digital prescriptions, making healthcare more accessible and convenient.

Technologies Used:

Next.jsNode.jsMongoDBFastify JSRedis

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Created all API's for projects
  • 6 + more features
NCER web (NEST)

NCER web (NEST)

September 2023 - April 2025

Ncer Web is a Malaysian business management platform that is being handled by the government.This platform helps the government verify and validate business peoples applications and assists them by providing business ideas.

Technologies Used:

Next.jsNode.jsMongoDBExpress JS

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Created all API's for projects
  • 4 + more features
Awan BMS

Awan BMS

November 2022 - May 2023

Awan BMS was an automated building management application. It created building blocks and assigned each house to an individual owner. The application automatically sent payment links and collected the owners' monthly rent.

Technologies Used:

Next.jsNode.jsMongoDBExpressStorybook

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Implemented contexts API for state management and authentication
  • 4 + more features
Slot booking

Slot booking

November 2022 - July 2023

Slot booking is a booking- based application.People can book the multipurpose hall for their events or ceremonies, etc.The hall details and services are shown on the booking page.

Technologies Used:

Next.jsNode.jsMongoDBExpress

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Implemented contexts API for state management and authentication
  • 3 + more features
Locum Zone

Locum Zone

July 2022 - November 2022

Locum Zone was a Malaysian business and doctor employment-focused platform. The platform is used for Malaysian hospitals or medical centers to create their profiles and post their available doctor jobs. Doctors can apply to these jobs.

Technologies Used:

Next.jsNode.jsMongoDBExpressStorybook

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Created all API's for projects
  • 5 + more features
Tailwood UI

Tailwood UI

October 2021 - January 2022

Tailwood UI is a free Tailwind CSS component library that provides reusable styled components in HTML and Tailwind CSS.

Technologies Used:

Next.jsStorybook

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Code review and complete testing
Dev converter

Dev converter

July 2021 - August 2021

Dev Converter is made for developers.The app provides features like transforming word collections from one case to another and converting JSON to CSV.

Technologies Used:

Next.jsStorybook

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Created all API's for projects
  • 3 + more features

My Education

Bachelor of Computer Applications (B.C.A)

Dr SNS Rajalakshmi College of Arts and Science

2019 - 2022

Completed Bachelor of Computer Applications at Dr SNS Rajalakshmi College of Arts and Science with CGPA 6.5

Achievements:
  • Participated in college-level coding competitions
  • Developed a stock market forcasting as final year project

Additional Courses

Full stack course

Udemy

January 2021

The complete Junior to senior web development by Andrei Neagoie

HTML & CSS

Udemy

October 2020

Learned full HTML & CSS from the course of John Smilga

Node.js Backend development

Learn Code Online

March 2021

Completed backend course by Hitesh Choudhary

Advanced JavaScript Concepts

Udemy

November 2021

Deep dive into JavaScript concepts like closures, prototypes, and async programming

Get In Touch

Contact Information

Location

Tamil Nadu, India

Working Hours

Monday - Saturday: 9 AM - 6 PM

Weekend: Available

Connect With Me

Send Me a Message