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%
React Native50%
Next JS85%
HTML/CSS95%
SCSS / Tailwind90%
Contentful50%
Storybook JS80%

Backend

Node.js85%
Nest.js80%
Express.js90%
Fastify75%
Electron JS50%

Database

MongoDB85%
Mongoose ODM85%
PostgreSQL50%
SQL (sqlite3)50%
Redis50%

DevOps

GitHub Actions50%
AWS50%
Docker50%
Nginx50%

Tools

Git90%
GitHub90%
Figma75%
Supabase50%
Bitbucket50%
Jira50%

Languages

JavaScript80%
TypeScript80%
Python50%

Languages I Speak

TamilNative
EnglishFluent
KanadaConversational
MalayalamBasic

Work Experience

Full Stack Developer

A2M8AI Software Solutions Pvt Ltd (India)

December 2025 – Present
Tamil Nadu, India (On-site)

Contributing to the end-to-end development of an AI-powered Learning Management System (LMS), with major involvement in frontend architecture, UI development, and backend feature implementation.

Key Achievements:
  • Led the end-to-end development of frontend UI, including component architecture planning, reusable component design, and implementation of responsive user interfaces.
  • Translated product requirements into scalable frontend solutions with a strong focus on performance, usability, and maintainability.
  • Contributed to backend development by building and integrating RESTful APIs, implementing business logic, and supporting database operations.
  • Collaborated with cross-functional teams to ensure seamless integration between frontend, backend, and AI-driven features.

Full Stack Developer

ACMO Software Solutions Pvt Ltd (Australia)

September 2025 - November 2025
Tamil Nadu, India (Remote)

Worked on 2 projects and coordinated with team members to define project scope and deliver features efficiently

Key Achievements:
  • Worked on the ACMO Documentation project, creating a comprehensive documentation system using Nextra to enhance user understanding of product features and workflows.
  • Sync Client - Developed a cross-platform desktop application using Electron that automates folder monitoring and file uploads, improving workflow efficiency for invoice processing.

Full Stack Developer

Plenitude IT Pvt Ltd (Malaysia)

July 2022 - August 2025
Tamil Nadu, India (Remote)

Worked 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

ACMO Documentation

ACMO Documentation

November 2025

ACMO Documentation is a web site that provides comprehensive documentation for ACMO products and services.

Technologies Used:

Nextra.jsBitbucketJiraTailwind CSS

Key Features:

  • Developed documentation for accounts payable, accounts receivable and Sync client documentation
  • Component Planning
  • Code Review
  • 1 + more features
Sync Client

Sync Client

September 2025

Sync Client is a desktop application that automates folder monitoring and file uploads, improving workflow efficiency for invoice processing.

Technologies Used:

ElectronNode.jsBitbucketJiraNext.jsTailwind CSS

Key Features:

  • Developed all ui sections
  • Component Planning
  • Code Review
  • 1 + more features
Portfolio Website (Kumaresan)

Portfolio Website (Kumaresan)

Auguest 2025

Build a portfolio web site for UI/UX developer

Technologies Used:

Next.jsGitHubVercelTailwind CSS

Key Features:

  • Developed all ui sections
  • web site planning
Software School Tamil

Software School Tamil

Auguest 2025

Built a learning platform to educate and support aspiring software developers through practical, real-world content

Technologies Used:

Next.jsSupabaseGitHubVercelTailwind CSS

Key Features:

  • Enhanced complete authentication flow with Supabase
  • Enhanced login and register UI's
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.jsTailwindCSSMongoDBNest.jsAWSGitHubGitHub ActionsVercelBillPlz

Key Features:

  • Fixed major bugs and improved performance in the Smart Disposal flow.
  • Built end-to-end Smart Trading feature for the tech exchange platform, allowing users to buy and sell second-hand or brand-new products with price negotiation.
  • End-to-end authentication and authorization for the Smart Trading feature.
  • 9 + more features
Mobilab2u

Mobilab2u

July 2024 - August 2025

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.jsTailwindCSSNode.jsFastifyMongoDBRedisAWSGitHub ActionsDockerVercelMicroservicesStripeGitHub

Key Features:

  • End-to-end authentication and authorization setup
  • Context API setup for global state management
  • End-to-end backend API's development for project flow
  • 7 + 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 JSAWSGitHub ActionsVercelTailwind CSSGitHub

Key Features:

  • End-to-end authentication and authorization setup
  • Context API setup for global state management
  • End-to-end backend API's development for project flow
  • 5 + 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.jsTailwindCSSStorybookNode.jsMongoDBExpressAWSGitHub ActionsVercelStripeGitHub

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • End-to-end authentication and authorization setup
  • 5 + 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.jsMongoDBExpressAWSGitHub ActionsVercelTailwind CSSGitHub

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • End-to-end authentication and authorization setup
  • 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.jsTailwind CSSStorybookNode.jsMongoDBExpressVercelStripeGitHub

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • End-to-end backend API's for project flow
  • 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.jsTailwind CSSStorybookVercelGitHub

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.jsStorybookTailwind CSSGitHubFirebaseVercel

Key Features:

  • Created all UI components with React for all types of form inputs
  • Storybook implementation for individual UI components
  • Firebase setup for authentication and database

My Certifications

Professional certifications demonstrating technical expertise and problem-solving abilities

JavaScript (Basic)
HackerRank
Basic
July 2025

Showcased basic JavaScript concepts. Includes variables, functions, and control structures.

Skills Demonstrated:

JavaScript
ES6+
DOM Manipulation
Async Programming
View Credential
JavaScript (Intermediate)
HackerRank
Intermediate
July 2025

Showcased intermediate JavaScript concepts. Includes scope, hoisting, and event delegation.

Skills Demonstrated:

JavaScript
ES6+
DOM Manipulation
Async Programming
View Credential
React (Basic)
HackerRank
Basic
July 2025

Showcased basic React concepts. Includes components, props, and state management.

Skills Demonstrated:

React
ES6+
DOM Manipulation
State Management
View Credential
Software Engineer
HackerRank
Basic
July 2025

Demonstrated proficiency in Software development fundamentals including data types, control structures, and basic algorithms.

Skills Demonstrated:

JavaScript
Data Structures
Algorithms
View Credential
CSS (Basic)
HackerRank
Basic
August 2024

Showcased basic CSS concepts. Includes selectors, properties, and responsive design techniques.

Skills Demonstrated:

CSS
Flexbox
Grid
Responsive Design
View Credential
Rest API (Intermediate)
HackerRank
Intermediate
September 2024

Demonstrated strong analytical thinking and algorithm design skills through complex problem-solving challenges.

Skills Demonstrated:

Algorithms
Data Structures
Problem Solving
Optimization
View Credential
Frontend Developer (React)
HackerRank
Intermediate
August 2025

Demonstrated strong analytical thinking and algorithm design skills through complex problem-solving challenges.

Skills Demonstrated:

Algorithms
Data Structures
Problem Solving
Optimization
View Credential
Node JS (Basic)
HackerRank
Intermediate
August 2025

Demonstrated strong analytical thinking and algorithm design skills through complex problem-solving challenges.

Skills Demonstrated:

Algorithms
Data Structures
Problem Solving
Optimization
View Credential
8
Certificates Earned
31
Skills Validated
HackerRank
Certified Developer

Published NPM Packages

Open-source packages and utilities built to solve real-world development challenges

0
Published Packages
0
Weekly Downloads
MIT
Open Source License

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

Coimbatore, Tamil Nadu, India

Working Hours

Monday - Saturday: 9 AM - 6 PM

Weekend: Available

Connect With Me

Send Me a Message