Summary
Overview
Work History
Education
Skills
Websites
Languages
Timeline
Generic
Nirmal S

Nirmal S

Chennai

Summary

Java Full Stack Developer with 4.5+ years of experience in designing, developing, and deploying enterprise-scale applications using Java, Spring Boot, Spring Security, Microservices, React, React Native, and AWS. Strong expertise in RESTful APIs, JPA, Hibernate, JWT-based authentication, cloud deployment, CI/CD pipelines, and Agile methodologies. Proven track record of optimizing system performance by up to 40% and delivering scalable, secure, production-ready solutions in fast-paced environments.

Overview

4
4
years of professional experience

Work History

Java Full Stack Developer

Knackforge
Chennai
07.2025 - Current

Project: Darwill (Full-service marketing provider that offers digital and direct marketing)

  • Converting a Darwill application to the React framework.
  • Created responsive login and logout page with jwt token using Axios.
  • Created resuable drawer, stepper and modal with help of kendo Ui package.
  • Migrated the complicated chilli List component with dynamic fields.
  • Migrated the release grid, edited, and created the location component in React.
  • Implemented the reviewDoc for pr review.
  • implemented the githook for precommit to ensure build and lint issues

Java Full Stack Developer

Knackforge
Chennai
10.2021 - 07.2025

Project: Iclasspro (LRM - Class, Camp & party management application)

Java / Backend (Spring Boot, Microservices)

  • Designed and developed RESTful APIs using Java & Spring Boot for enrollment, billing, scheduling, and attendance workflows.
  • Implemented Punch Pass, Makeup Token, Transfer, and Occupancy Management business logic with transactional consistency.
  • Built microservices-based architecture, handling inter-service communication and fault tolerance.
  • Optimized complex MySQL queries and indexing, reducing API response time by 40%.
  • Implemented role-based access control and validation layers to ensure secure API access.
  • Improved system scalability to handle 10,000+ concurrent users using stateless services and caching.
  • Containerized services using Docker and deployed on AWS improve release stability and deployment speed.

React Js (Front-End)

  • Developed and enhanced web-based admin and staff dashboards using React.
  • Built reusable, modular React components for scheduling, transfers, and occupancy views.
  • Integrated backend APIs with Axios / Fetch, handling async workflows and error states.
  • Implemented state management using Context API / Redux for consistent UI behavior.
  • Improved user experience by reducing page load times and optimizing rendering performance.
  • Implemented QR Code scanning and validation workflows for browser-based check-ins.
  • Collaborated with UX designers to deliver responsive and accessible UI components.

Education

Bachelor of Technology (B.Tech) - Biotechnology

Sastra Deemed University
01.2021

Skills

  • React Js
  • React Native
  • JavaScript (ES6)
  • HTML5
  • CSS3
  • Redux
  • Java
  • Spring Boot
  • Microservices
  • REST APIs
  • Spring Data JPA
  • Hibernate
  • Spring Security
  • Mysql
  • AWS (EC2, S3, Lambda, RDS, API Gateway)
  • Docker
  • GitHub Actions
  • CI/CD pipelines
  • Git
  • GitHub
  • Bitbucket
  • Jira
  • Click Up
  • Postman
  • Maven
  • Gradle
  • Agile
  • Scrum
  • Leadership
  • Team Collaboration
  • Critical Thinking
  • Effective Communication

Languages

  • Tamil, Fluent
  • English, Fluent

Timeline

Java Full Stack Developer

Knackforge
07.2025 - Current

Java Full Stack Developer

Knackforge
10.2021 - 07.2025

Bachelor of Technology (B.Tech) - Biotechnology

Sastra Deemed University
Nirmal S