You will get Senior MERN Stack Developer | Node.js, React, MongoDB, Full-Stack Solutions
Project details
I am a Senior MERN Stack Developer specializing in building scalable, secure, and high-performance full-stack web applications using MongoDB, Express.js, React.js, and Node.js. I deliver complete end-to-end solutions with clean architecture, modern UI, and robust backend logic.
From custom web applications to complex business platforms, I focus on performance, scalability, and maintainable code. Whether you need a new MERN application, API development, or optimization of an existing system, I provide reliable, business-ready solutions with clear communication and on-time delivery.
From custom web applications to complex business platforms, I focus on performance, scalability, and maintainable code. Whether you need a new MERN application, API development, or optimization of an existing system, I provide reliable, business-ready solutions with clear communication and on-time delivery.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$99
|
Standard
$450
|
Advanced
$950
|
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
Number of Revisions | 5 | 6 | 7 |
Number of Pages | 1 | 6 | 12 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code | - | - | - |
6 reviews
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RO
Robert O.
Mar 23, 2026
Development
Working with Krunal was a great experience. He is a reliable and professional React developer who communicates clearly and collaborates very well with the team. Throughout the project, he stayed accountable for his work and always ensured tasks were completed on time.
Krunal is highly detail-oriented and committed to delivering quality results. He approaches problems with a solution-oriented mindset and consistently focuses on achieving the best outcomes. I would definitely recommend Krunal to anyone looking for a dependable and skilled React developer.
Krunal is highly detail-oriented and committed to delivering quality results. He approaches problems with a solution-oriented mindset and consistently focuses on achieving the best outcomes. I would definitely recommend Krunal to anyone looking for a dependable and skilled React developer.
BT
Beena T.
Jan 5, 2026
Next.js Developer Needed for B2B Marketing Website
Professional, responsive, and delivered on time. Great experience overall, and happy to work with him again in the future.
AA
Aditi A.
Dec 27, 2025
Frontend Developer – Mobile Compatibility & Performance Optimization
Krunal is a skilled React developer who delivers clean, high-quality work on time.
Excellent communication, strong problem-solving skills, and a pleasure to work with.
Excellent communication, strong problem-solving skills, and a pleasure to work with.
DR
DESH R.
Jul 13, 2025
Next.js and Nest.js Authentication Integration Expert Needed
Krunal is a very dedicated and capable individual. He holds in-depth tech knowledge on web application frameworks.
UV
Urvish V.
Jun 23, 2025
React Developer Needed for Bug Fixes and UI Adjustments – $30 Fixed | 5-Hour Deadline
Great job! completed it on time as well.
About Krunal
React Developer Frontend React Full stack React Developer | Cursor AI
100%
Job Success
Surat, India - 1:37 am local time
🔥 Solutions that launch fast, scale smoothly, and generate revenue
🚀 30+ projects delivered (SaaS, MVPs, marketplaces)
💰 Products generating $10K–$1M+ revenue
👥 Applications supporting 10K–50K+ active users
⚡ Systems handling 200K–500K+ API requests/month
As a React Developer and Full Stack Developer React Node, I’ve spent 5+ years building SaaS platforms, marketplace systems, and AI-powered applications that scale from MVP to production.
As a Frontend React Developer, I focus on performance, scalability, and clean UI architecture.
As a Full Stack React Developer, I handle complete product development including frontend React, backend Node.js, APIs, and integrations.
I’ve delivered 30+ projects as a React Developer and Full Stack Developer, contributing to systems generating $10K–$1M+ revenue and supporting 10K–50K+ users.
📈 SaaS Platform Experience
As a React Developer, I worked on SaaS platforms processing thousands of operations daily.
As a Frontend React Developer, I improved performance by 50–70%, reduced load times, and increased user engagement.
As a Full Stack Developer React Node, I built backend systems using Node.js, reducing manual workflows by 50–70% and handling 300K+ API requests monthly.
📊 Results & metrics
-> 100+ completed projects as Full Stack Developer React Node
-> 12,000+ hours worked as React Developer and Full Stack Engineer
-> Products generating $1M+ revenue
-> Systems used by 10,000+ active users
-> Platforms handling 1M+ API requests/month
-> MVP to production delivery in 2–8 weeks
-> 💼 Experience across products
🏠 Marketplace Platforms
As a Full Stack React Developer, I built marketplace platforms used by thousands of users globally.
As a Frontend React Developer, I developed dashboards, bidding systems, and real-time UI.
As a Full Stack Developer React Node, I implemented backend Node.js APIs supporting thousands of transactions and scalable infrastructure.
🏥 AI-Powered SaaS Applications
As a React Developer, I built AI-powered SaaS platforms integrating modern APIs and automation systems.
As a Full Stack Developer React Node, I developed scalable backend systems and client portals supporting thousands of users.
These AI SaaS platforms automated workflows and reduced manual work by 30–50%.
🧠 Backend & API Development (Node.js Developer)
As a Full Stack Developer React Node and Node.js Developer, I design backend systems powering SaaS platforms and MVPs.
As a Full Stack React Developer, I build REST APIs, authentication systems, and scalable backend services.
As a Full Stack Developer React Node, I have built systems processing 300K–500K API requests monthly with optimized performance.
Backend systems built as a Full Stack Developer React Node improved response time by 3–5x and reduced latency by 40–60%.
🛒 SaaS MVP & Payments Systems
As a Full Stack Developer React Node, I built SaaS MVP platforms with Stripe integration.
As a Frontend React Developer, I handled large datasets (50K+ records) with smooth UI performance.
These MVP systems generated revenue early and scaled to production-ready applications.
💻 Worked as:
- React Developer
- Frontend React Developer
- Full Stack Developer React Node
- Web Developer
- SaaS Developer
- Marketplace Developer
- AI Platform Developer
🚀 Experience Across Roles
As a Frontend React Developer, I built scalable UI systems across multiple SaaS platforms
As a Full Stack Developer React Node, I launched 15+ MVPs in 4–8 weeks
As a React Developer, I improved performance, scalability, and user experience
As a Full Stack React Developer, I handled backend Node.js, APIs, and system architecture
As a JavaScript Developer, I built dashboards, admin panels, and client portals
⚒️ Tech Stack
As a React Developer: React.js, Next.js, Redux, TypeScript
As a Full Stack Developer React Node: Node.js, Express, NestJS, REST APIs, backend Node.js architecture
Database & Infrastructure: PostgreSQL, MongoDB, Supabase, Firebase, AWS
📊 Results
As a React Developer → 50–70% performance improvement
As a Frontend React Developer → fast, scalable UI for 10K+ users
As a Full Stack Developer React Node → 300K–500K API requests/month
As a Full Stack React Developer → MVP to production in 4–8 weeks
🎯 What I Can Help You With
💻 SaaS MVP development
⚛️ Full Stack React + Node.js applications
🧠 React dashboards and frontend systems
🔌 API development and integrations
🤖 AI-powered SaaS platforms
📱 Performance optimization
🤝 Let’s Build a Scalable Product
As a React Developer, React Web Developer, and Full Stack Developer, Python Developer, I focus on building production-ready MVPs and scalable SaaS platforms.
If you’re looking for a React Developer, Frontend React Developer, or Full Stack Developer React Node who can build scalable SaaS platforms and MVPs — let’s connect.
👉 Click “Invite” or “Hire” and let’s build your product.
Steps for completing your project
After purchasing the project, send requirements so Krunal can start the project.
Delivery time starts when Krunal receives requirements from you.
Krunal works on your project following the steps below.
Revisions may occur after the delivery date.
Understand project scope and business goals
Review features, user flows, APIs, database structure, and technical requirements.
Build frontend and backend using MERN
Develop scalable React UI, Node.js APIs, and MongoDB database logic.