Harsh  ·  Senior MERN / Next.js Developer  ·  5+ yrs

Mid-Level
India5+ years experienceremote
Available within 48 hrs

About Harsh

Harsh is a seasoned MERN Stack Developer with extensive experience in designing, developing, and testing web applications. He has successfully managed multiple projects from conception to deployment, ensuring high-quality deliverables that meet both technical and consumer needs. His expertise spans across various domains, including FinTech and SaaS, where he has demonstrated strong leadership and collaboration skills.

Core expertise

React
frontend
9/10
JavaScript
language
9/10
Node.js
backend
8/10
Redux
frontend
8/10
MongoDB
database
8/10
Express
backend
8/10
Next.js
frontend
8/10

Additional skills(16)

ReactReduxSCSSVS CodePostmanNext.jsNode.jsExpressMongoDBHTML

Why hire Harsh?

Production deploy authorityMentored 5+ juniorsManaged offshore development team

Developed and deployed multiple full-stack MERN applications for financial security and business operations.

Managed the full software development lifecycle for projects, from conception to deployment and support.

Successfully integrated critical third-party libraries for payment gateways and specialized functionalities.

Extensive state management expertise with Redux across several complex applications.

Adoption of Agile methodology for project execution and milestone achievement.

Designed and developed a full-stack MERN application, enhancing efficiency in GST filing for businesses.

Implemented robust authentication mechanisms using Passport.js and JWT, improving security.

Developed a robust fraud detection application leveraging advanced algorithms, increasing detection accuracy.

Project highlights(4)

Employee Interview Management – Frontend Developer

Overview: An online Interview Management System for recruiters, hiring managers, and talent acquisition specialists to streamline the hiring process. Responsibilities: Involved in analysis and design of application features. Used Agile Methodology for achieving targets and milestones. Managed, collaborated, and coordinated the work of an offshore development team. Implemented many third-party libraries to achieve project goals. Took part in the entire project lifecycle, including Design, Development, Deployment, Testing, Implementation, and support.

ReactReduxSCSSVS CodePostman

Key outcomes:

  • Participated in the full project lifecycle from design to deployment and support.

  • Managed and coordinated an offshore development team.

  • Implemented third-party libraries to achieve project goals.

KEY CMA – Frontend Developer

Overview: KEY CMA is a real estate tool for brokers and appraisers, designed to present Comparative Market Analysis (CMA) by utilizing MLS system information. Responsibilities: Worked on PDF Generate Api functionality. Made components reusable across the application. Worked on Excel Upload functionality. Performed testing and bug solving.

ReactNext.jsReduxSCSSReact-BootstrapPostmanVS Code

Key outcomes:

  • Designed an application to identify fraudulent activities from bank statements and credit card transactions.

  • Implemented PDF generation API.

  • Developed reusable components to enhance code maintainability.

RARE PAY SOLUTION – Full Stack Developer

Overview: A GST Filing System built using the MERN stack (MongoDB, Express.js, React.js, and Node.js) for businesses to file Goods and Services Tax (GST) returns efficiently. Responsibilities: Responsible for designing and developing the WEB application. Managed both frontend and backend development. Implemented GST Third-Party Library integration. Implemented Social Login with Passport.js. Implemented JSON Web Token For Authentication.

ReactReduxSCSSReact-BootstrapNode.jsExpressMongoDBPassport.jsJWTPostmanVS Code

Key outcomes:

  • Designed and developed a full-stack MERN application.

  • Integrated a third-party GST library for tax filing.

  • Implemented robust authentication mechanisms using Passport.js and JWT.

E-fraud Detection App – MERN Developer

Overview: An E-fraud Detection App designed to identify fraudulent activities from bank statements, credit card transactions, and custom forms. Responsibilities: Developed and maintained server-side logic using Node.js and MySQL, ensuring robust and scalable API endpoints. Created a dynamic and responsive user interface with React.js, incorporating best practices for user experience and accessibility.

HTMLSCSSJavaScriptReactBootstrapNode.jsExpressMySQL

Key outcomes:

  • Developed a robust fraud detection application leveraging advanced algorithms.

  • Implemented comprehensive security measures for sensitive financial data.

  • Successfully integrated AI/ML and reporting third-party libraries (Human-In-Loop, Yurbi).

5+ years of industry experience

FinTech1 project
  • •E-fraud Detection App— MERN DeveloperHTML · SCSS · JavaScript · React +4
SaaS / B2BReported in resume
Cybersecurity1 project
  • •E-fraud Detection App— MERN DeveloperHTML · SCSS · JavaScript · React +4
Real Estate1 project
  • •KEY CMA— Frontend DeveloperReact · Next.js · Redux · SCSS +3

Ready to work with Harsh?

Onboard within 48 hours. No long hiring cycles, no recruiter middleman.

At a Glance

LocationIndia
Experience5+ years
Work moderemote
Direct hirePossible
Start within48 hours
From$1,796/ month

Single contract. Billed in USD.

Typically responds within 4 business hours.

5-day replacement guarantee
48-hour onboarding, single invoice
Direct chat — no recruiter middleman

Top Skills

React
9/10
JavaScript
9/10
Node.js
8/10
Redux
8/10
MongoDB
8/10
Seniority signals
Owns production deploysGreenfield architectSystem ownerCode reviewerMentor / leads juniors
VerifiedVetted by Witarist
Technical skills assessed & verified
Background & identity checked
English communication verified
Ready to onboard in 48 hours

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Harsh

Mern Satck ReactJS