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Fiverr Pro
English
$
USD
I will develop a full stack nextjs web application with database and API
Mahmudul Hasan
About this gig
Need a modern, fast, and scalable web application built the right way?
I will build you a complete full-stack web app using Next.js and Node.js with a clean UI, solid backend, and a database built to handle real traffic.
What I deliver:
- Server-side rendered Next.js frontend (fast + SEO ready)
- REST API with Node.js and Express
- Database setup MongoDB or PostgreSQL (your choice)
- User authentication and protected routes
- Fully responsive works on all devices
- Clean, commented code you can hand to any dev later
- Deployment-ready (Vercel, AWS, Railway, or your server)
Common projects I build:
- Business web portals with user management
- Booking or scheduling platforms
- Real estate or property listing apps
- Online learning platforms (EdTech)
- Marketplace or directory sites
- Internal tools and company dashboards
Why choose me:
- 4+ years building production web apps
- TypeScript-first fewer bugs, safer code
- Fast response time I don't ghost clients
- I explain what I'm building, not just deliver code
Message me with your project idea before ordering I'll confirm if I can help and give you an honest timeline.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Mahmudul Hasan
Mahmudul Hasan
AI Agent and Automation Engineer, LangChain, LangGraph, MCP and RAG
- FromBangladesh
- Member sinceJan 2026
- Avg. response time1 hour
Languages
English
I build custom AI agents that replace manual work, from AI sales outreach to support chatbots. Not prompt wrappers real agentic systems with memory, tool-calling, and multi-step reasoning.
4+ years full-stack, now focused on LangChain, LangGraph & MCP. I build agents that take action: qualify leads, send emails, answer tickets, pull live data, integrate with your stack.
→ AI SDR agents — lead research, personalized cold emails
→ Custom AI chatbots — trained on your data, with escalation
→ Multi-agent systems (LangGraph & MCP)
→ RAG pipelines for grounded AI answers
My Portfolio
FAQ
Do I need to have technical knowledge to work with you?
Not at all. You just need to know what your app should do — I handle the technical side. I work with non-technical founders and business owners. I’ll ask a few simple questions about your idea and users, then turn it into a working product. No coding knowledge needed — just bring your idea.
How does the process work from start to finish?
Here’s how every project works: Step 1 — Discovery: You share requirements, I confirm scope. Step 2 — Kickoff: Order placed, I start with a clear plan. Step 3 — Development: Updates every 2–3 days. Step 4 — Review: Revisions handled. Step 5 — Delivery: Code, docs, deployment + 7 days support.
Will I own the source code after delivery?
Yes — 100%. After delivery, you own everything: full source code, files, database schemas, and configs. No licenses, no ongoing fees, no restrictions. You’re free to modify, extend, hand it to another developer, or deploy it anywhere.
What if the project is more complex than the package covers?
That’s exactly why I ask you to message me before ordering. I review your requirements and recommend the right package — or create a custom offer if needed. I never start without a clear scope. No surprises, no hidden costs. Any extra features are discussed and agreed before I build.
Can you meet my deadline if it's urgent?
Message me your deadline before ordering — I’ll tell you honestly if I can meet it. I offer rush delivery for smaller projects and often deliver faster for well-defined scopes. I don’t promise timelines I can’t keep — if it’s not feasible, I’ll say upfront.
Do you provide support after the project is delivered?
Yes. Every delivery includes 30 days of free post-delivery support. If anything breaks, behaves unexpectedly, or doesn’t match what we agreed — I fix it at no extra cost. For ongoing support, I offer maintenance packages. Most clients find 30 days is enough to test everything.
What information do you need from me to get started?
The more detail you share upfront, the better. Ideally: → What the app should do and who it’s for → Reference apps/designs → Preferred tech stack (or I’ll suggest one) → Any existing code/API/database → Target launch date. No docs needed — a clear description works. I’ll ask if needed.
Can you work with my existing codebase or continue someone else's project?
Yes, I take on existing projects regularly. Send your repo (GitHub, GitLab, etc.) or code and I’ll review it first. I’ll give an honest assessment of the current state and what’s needed to continue or fix it. I work with React, Next.js, Node.js, Express, MongoDB, PostgreSQL — message me for other st
