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You will get Custom Full Stack Web App Development
Top Rated
Project details
Do you need a scalable, high-performance web application? I’ll develop a full-stack web app using Next.js, React.js, Express.js Node.js, and PostgreSQL or MongoDB (as per your choice) with a robust backend and a sleek UI. The application will be fully responsive, fast, and built with security best practices.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$249
|
Standard
$549
|
Advanced
$849
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 12 days |
Number of Revisions | 1 | 3 | 5 |
Number of Pages | 5 | 12 | 24 |
Design Customization | |||
Content Upload | - | ||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Additional Revision
+$39
Additional Page
(+ 2 Days)
+$19
Content Upload
(+ 2 Days)
+$69
41 reviews
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TB
Tom B.
Aug 23, 2026
Build an AI Browser Agent
Absolutely fantastic to work with Satyam from start to finish. They were extremely responsive, made all the necessary changes without any issues, and were very understanding and flexible when there were some delays on my end. Everything was completed to a very high standard, and the end result was exactly what we needed. A genuine pleasure to work with, and I’d happily recommend Satyam to anyone!
GS
Gagandeep S.
Jul 14, 2026
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nice dude. joined call very quickly and tried his best with the project.
LG
Lee G.
Jun 30, 2026
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Excellent work on resolving issues, completing project, and communication.
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Oriol V.
May 12, 2026
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Great work! The freelancer understood exactly what I needed and delivered it very quickly! Highly recommended.
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Apr 13, 2026
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About Satyam
AI Integration Expert | AI Automation | Full Stack AI Engineer
100%
Job Success
Lucknow, India - 8:04 pm local time
At some point every growing business accidentally hires a full-time employee called Copy and Paste.
A lead comes in.
| Someone updates the CRM.
| Someone updates the spreadsheet.
| Someone sends the email.
| Someone books the meeting.
Then one part of the automation breaks and someone spends half a day figuring out what happened.
I work on this kind of problem.
I build AI automations, AI agents, API integrations, CRM workflows, and full-stack systems for startups, agencies, and SaaS companies.
I'm a Top Rated freelancer with 50+ completed Upwork projects, 100% Job Success, Microsoft Certified: Azure AI Engineer Associate, and n8n Certified Level 1 and Level 2 AI Automations Engineer.
A few things I've worked on recently:
• WhatsApp AI agent for travel inquiries and bookings
• n8n automation for salon operations
• AI property damage assessment pipeline
• Automated price monitoring and data collection with Zapier and Browse.ai
• CRM and lead-processing workflows
• AI-powered SaaS products and internal business tools
For AI and automation work, I work with:
• n8n and self-hosted n8n
• Make
• Zapier
• OpenAI API, Claude API, Gemini API
• AI agents and AI Integration
• RAG and knowledge-base systems
• MCP servers
• Webhooks and REST APIs
• Airtable
• Google Sheets
• Notion
• HubSpot
• GoHighLevel
• Pipedrive
• Slack
• Calendly
• WhatsApp AI Agents
For custom development, my main stack is:
• Node.js, NestJS, Express.js
• Python, FastAPI
• Next.js, React
• PostgreSQL, MongoDB, Supabase, Firebase
• AWS, Google Cloud
• Docker, Podman
• Redis, Apify, Golang
• REST APIs and third-party integrations
A lot of automation work stops at "the two apps are connected."
That's usually the point where my work starts.
A real automation needs to deal with failed API calls, retries, rate limits, missing data, duplicate events, logs, authentication, and the random things that happen when someone changes a field without telling anyone.
That's where being a full stack engineer helps. I can build the automation in n8n, Make or Zapier when that is enough, and write the backend or custom integration when it isn't.
I don't try to force everything into an automation platform either.
Sometimes n8n is the right answer. Sometimes it's a small Node.js service. Sometimes it's a database change and a webhook.
I look at what the workflow needs first, then decide what makes sense.
Send me the workflow you're dealing with, the tools involved, and where you're getting stuck.
I'll tell you what I'd change and how I'd build it.
Steps for completing your project
After purchasing the project, send requirements so Satyam can start the project.
Delivery time starts when Satyam receives requirements from you.
Satyam works on your project following the steps below.
Revisions may occur after the delivery date.
1
Have a meeting or conversation with the client about the web application features, and then I will present a full description what tech stack and tools I will use and how I plan to design and develop the web application.