Senior MERN Full-Stack Developer with React Expertise

Kalaiselvi V

Full stack Developer MERN Stack

React Specialist

P R O F I L E

Full Stack Developer with 8.5+ years of experience in building scalable and high-performance web applications, with strong expertise in frontend development using React.js and backend development using Node.js (MERN stack). Skilled in designing responsive user interfaces, developing RESTful APIs, and delivering end-to-end solutions in agile environments. E X P E R I E N C E

Senior Software Engineer – Frontend / Full Stack

Walmart Global Tech India 2021 - present

Developed scalable application for demand forecasting and inventory allocation

Built interactive dashboards using React.js and React Hooks for efficient state and lifecycle management

Designed reusable UI components, dynamic forms, and high-performance tables

Gained knowledge about the application frontend which helped to take responsibility on UI related activities and lead the team.

Leveraged React Hooks for performance optimization, reducing unnecessary re-renders and improving

responsiveness

Integrated frontend with backend services via RESTful APIs

Collaborated with backend teams on API design and system architecture to ensure seamless data flow

Participated in code reviews and contributed to enhancing coding standards and implementing best practices

Optimized application performance for large datasets, improving load time and responsiveness

Integrated ML-based forecasting outputs into UI workflows for intelligent decision-making

Worked cross-functionally with product and engineering teams to plan and deliver new features

Impact:

Reduced manual effort ~70 hours per user and Improved inventory efficiency by reducing stockouts and overstock

Enabled data-driven decision-making for planners Software Engineer

Sony India Software Centre 2017 – 2021

Developed end-to-end features using the MERN stack in Sony Pictures Entertainment – Screeners, Credit Note System.

Built reusable UI components and data tables using React.js, React Hooks, and Flux

Designed RESTful APIs using Node.js and Express.js

Implemented file uploads, XLSX export, and complex forms

Worked with multiple Databases (MongoDB, MySQL, and DynamoDB)

Deployed services on AWS (Lambda, S3, CloudWatch)

Improved performance through efficient API handling and optimized state management

Developed scalable backend services to support high- availability applications.

C O N T A C T

***********@*****.***

+91-996*******

LinkedIn - kalaiselvi-vp

E D U C A T I O N

Bachelor degree in Computer

Science & Engineering

Anna University, Chennai

Completed in 2017

T E C H N I C A L

S K I L L S

React JS

JavaScript (Es6+)

Redux

Context API

React Hooks

HTML

CSS

Node JS

Express JS

MongoDB

SQL/Postgres

DynamoDB

CI/CD-GitHub actions

AWS – Lambda, S3

CloudWatch

GIT

Junit

Problem-Solving

Clean Code

Design Thinking

Agile

A W A R D S

Best Performer of the Quarter

2019 Sony India Software Centre

Bravo Award

2022 Walmart Global Tech India

Team Excellence Award

2023 Walmart Global Tech India

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