Programming & Development web development & design

MERN Stack|Full-Stack JavaScript Expert

$15/hr Starting at $100

I’m a full-stack JavaScript developer specializing in the MERN stack (MongoDB, Express.js, React.js, Node.js) with over 9 years of hands-on experience building high-performance, scalable web applications. I build clean, modular backends with Node.js and Express, craft dynamic, responsive UIs with React, and structure reliable, flexible data layers using MongoDB with Mongoose. I write secure, maintainable APIs, manage complex state with Redux, and deliver products that balance speed, UX, and technical depth.

My focus is not just writing code — I partner with teams to design architecture, improve workflows, and solve real business problems with smart, testable solutions.

🧠 Core Skills & Tools

Frontend: React.js, Redux, Context API, React Router, Tailwind CSS, Material UI, Axios
Backend: Node.js, Express.js, JWT Auth, REST APIs, Socket.io
Database: MongoDB, Mongoose, Aggregation Framework
Tools: Git, Postman, VS Code, NPM/Yarn, Webpack, Babel
Testing: Jest, Mocha, Supertest
DevOps (basic): Docker, PM2, NGINX, GitHub Actions
Workflow: Agile/Scrum, Jira, Trello.

🛠 What I Deliver

Full-stack applications built entirely on the MERN stack
Scalable API architectures (REST, JWT, Role-Based Access)
Real-time features with WebSockets
Custom dashboards, CRMs, and admin portals
Clean, reusable components and modular codebases
Integration with third-party APIs (Stripe, SendGrid, etc.)
Performance optimization, code reviews, and refactoring
Deployment on platforms like Vercel, Heroku, DigitalOcean

About

$15/hr Ongoing

Download Resume

I’m a full-stack JavaScript developer specializing in the MERN stack (MongoDB, Express.js, React.js, Node.js) with over 9 years of hands-on experience building high-performance, scalable web applications. I build clean, modular backends with Node.js and Express, craft dynamic, responsive UIs with React, and structure reliable, flexible data layers using MongoDB with Mongoose. I write secure, maintainable APIs, manage complex state with Redux, and deliver products that balance speed, UX, and technical depth.

My focus is not just writing code — I partner with teams to design architecture, improve workflows, and solve real business problems with smart, testable solutions.

🧠 Core Skills & Tools

Frontend: React.js, Redux, Context API, React Router, Tailwind CSS, Material UI, Axios
Backend: Node.js, Express.js, JWT Auth, REST APIs, Socket.io
Database: MongoDB, Mongoose, Aggregation Framework
Tools: Git, Postman, VS Code, NPM/Yarn, Webpack, Babel
Testing: Jest, Mocha, Supertest
DevOps (basic): Docker, PM2, NGINX, GitHub Actions
Workflow: Agile/Scrum, Jira, Trello.

🛠 What I Deliver

Full-stack applications built entirely on the MERN stack
Scalable API architectures (REST, JWT, Role-Based Access)
Real-time features with WebSockets
Custom dashboards, CRMs, and admin portals
Clean, reusable components and modular codebases
Integration with third-party APIs (Stripe, SendGrid, etc.)
Performance optimization, code reviews, and refactoring
Deployment on platforms like Vercel, Heroku, DigitalOcean

Skills & Expertise

API DevelopmentAPI IntegrationsApp DevelopmentBack End DevelopmentCSSDesignFigmaFront End DevelopmentJavaScriptJira SoftwareJSONLaravelMySQLNode.jsPayment Gateway IntegrationProgrammingReactJSResponsive Web DesignRest ApiWeb DevelopmentWeb GraphicsWeb Management

Related Work Collections

Custom Dashboard Application

6 Reviews

Alonzo 10 says,

Working with this team on the Beauty Couriers app was a great experience from start to finish. They were responsive, detail-oriented, and truly understood my vision, bringing it to life even better than I expected. The final product is polished, functional, and positions us for real growth.” “As a business owner, I’ve worked with a lot of people—but this team stands out. They took my idea for Beauty Couriers and turned it into a real, working app with precision and creativity. I’d definitely recommend them to anyone serious about building something impactful.”

for Finish Beauty Couriers pick-u/delivery a on May 05, 2026
Alonzo 10 says,

This team has done an amazing job working on my project.

for Finish Beauty Couriers pick-u/delivery a on Mar 30, 2026
Alonzo 10 says,

Everything has been on point. The team us very responsive when work on the project. All updates needed is met with rapid response time.

for Finish Beauty Couriers pick-u/delivery a on Mar 17, 2026
CarlosV says,

Thank you so much. Works like a charm. Looking forward to working together on the next steps!!!!

for Download JSON data via API on Mar 24, 2023
Brittex says,

Sahil has been working diligently on our project and is making good progress.

for NFC application for e-commerce on Oct 31, 2022

Sahhil Kataria