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Our agency will develop a custom full stack web app using mern stack react node and mongo
eComFixR
Level 2
Agency
About this gig
Need a reliable full stack development team that actually delivers? Our agency builds production-ready web applications using MongoDB, Express.js, React.js, and Node.js with clean architecture, well-structured code, and zero shortcuts.
From a quick bug fix to a complete custom web platform we handle it all.
What We Can Build For You:
- React.js SPA dashboards, portals, landing pages
- Node.js + Express REST API development
- MongoDB schema design & database integration
- JWT / OAuth user authentication & authorization
- Role-based access control (RBAC) & admin panels
- Third-party API integration (Stripe, PayPal, Firebase, Twilio)
- Real-time features with Socket.io
- Bug fixing, feature additions & code optimization on existing MERN apps
- Full responsive design mobile, tablet, desktop
Why Our Agency:
- Team-based delivery not a solo freelancer
- MVC architecture & REST API best practices on every build
- Git version control & clean folder structure
- Postman-tested APIs before handover
- Full source code ownership no licensing, no lock-in
- Deployment included on Standard & Premium (Vercel, Render, Railway, VPS)
Professional MERN Stack Development Clean Code, Scalable Architecture, On-Time Delivery
About this agency
eComFixR
Agency
14 employees
Level 2
- FromBangladesh
- Member sinceNov 2018
- Avg. response time1 hour
- Last delivery1 week
Languages
English
Is your Shopify or WooCommerce store getting traffic but not converting? That's exactly what we fix. eComFixR is a CRO-focused Shopify & WooCommerce agency with 12+ years of experience, 14-member expert team, and 100+ stores built. We specialize in Shopify design & development, Shopify redesign & CRO optimization, custom Shopify theme development, Shopify speed optimization & Core Web Vitals, WooCommerce custom development, and conversion rate optimization for eCommerce. 4.9 rated Level 2 Agency with 1-hr avg response time.
Among our clients
Aurum Brothers
Portfolio
FAQ
Q1: What is included in the Basic package?
The Basic package is designed for small tasks — fixing bugs, adding minor features, or building/fixing API endpoints in an existing MERN app. It covers up to 2 pages and is delivered in 7 days. It's not suitable for building a full application from scratch.
Q2: Is Standard suitable for a brand new web app?
Yes. The Standard package covers a full redesign or new build of up to 6 pages by a full stack front-end developer. It's ideal for businesses that need a complete, optimized web application with clean UI and backend integration.
Q3: What exactly does the Premium package include?
Premium is our full custom development tier — we build your entire product from scratch according to your specifications. Up to 10 pages, 30-day delivery, unlimited revisions, and full stack coverage including frontend, backend, database, and deploy
Q4: Will I get the full source code?
Yes, absolutely. All packages include complete source code ownership. No subscriptions, no hidden fees, no lock-in.
Q5: Can you work on my existing MERN codebase?
Yes — especially in the Basic and Standard tiers. Share your GitHub repo before ordering and we'll review it to confirm compatibility and scope.
Q6: Do you handle deployment?
Deployment is included in Standard and Premium packages. We support Vercel, Render, Railway, DigitalOcean, or any VPS. We also configure custom domains and SSL certificates.
Q7: How do you communicate during the project?
We send regular progress updates via Fiverr messages. For Standard and Premium projects, we can set up a shared Trello or Notion board so you have full visibility at all times.
Q8: My project is bigger than the Premium package — can you handle it?
Yes. We take on large-scale projects via milestone-based custom offers. Message us with your full requirements and we'll structure a plan that fits your timeline and budget.
Q9: Do you sign NDAs?
Yes. Client confidentiality is a priority. We'll sign an NDA before the project begins upon request — no questions asked.
Q10: Why is there such a price difference between Basic and Standard?
Basic is scoped for isolated tasks on existing codebases — a few hours of targeted work. Standard involves full application development with design, frontend, backend, and integration — a significantly larger scope of work. If you
