๐ Top Rated Plus | 9+ Years Experience | 8100+ Hours | 100% Job Success
Hi, I'm Gopal, a Senior Full-Stack Web Developer & AI Application Specialist with over 9 years of experience delivering secure, scalable, and high-performance applications.
I specialize in end-to-end development, from clean and responsive user interfaces to powerful backend systems. I also built and productionised AI platforms similar to Lovable, ChatGPT, and Base44, including private deployments, API integrations, and automation workflows.
Whether you need a SaaS platform, an AI chatbot, a business automation system, an eCommerce solution, or a Base44 app rebuilt outside the platform, I deliver solutions that are reliable, maintainable, and built to scale.
๐ง AI & Automation
โ Lovable-style AI apps
โ ChatGPT-like conversational systems
โ Base44 app duplication & migration
โ AI agents & workflow automation
โ API-driven AI integrations
๐งฑ Backend & Frameworks
โ Laravel / Filament
โ CodeIgniter
โ WordPress (Custom Themes & Plugins)
โ CakePHP
๐จ Frontend & Realtime
โ ReactJS
โ VueJS
โ JavaScript (ES6+)
โ jQuery / AJAX
โ WebSockets
๐๏ธ Databases & APIs
โ REST API development & integration
โ MySQL
โ MongoDB
๐ Web & Design
โ HTML / HTML5
โ CSS / Bootstrap
โ Social media integrations
โ Photoshop
I communicate clearly in spoken and written English and am known for being proactive, reliable, and deadline-driven. Client satisfaction comes from clean code, transparency, and consistent delivery.
MySQL
Laravel
CodeIgniter
CakePHP
React
API Integration
Payment Gateway Integration
Vue.js
Ecommerce Website Development
React Native
REST API
AI Chatbot
AI Product Management
n8n
Make.com
HighLevel
Haider Z.
Islamabad, Pakistan
$30/hr
5.0
8 jobs
I'm an AI developer who builds production AI systems, not demos. AI agents, RAG pipelines, LLM integrations, and automation workflows that handle real traffic and solve real business problems.
Top Rated | 100% Job Success | 100% Client Recommendation.
What I build as an AI developer:
AI Agents and Agentic Workflows: Multi-agent systems with LangChain, LangGraph, and CrewAI. Tool-calling agents, function execution, MCP integrations, and autonomous workflows that run reliably in production.
RAG Pipelines: Retrieval-augmented generation systems with vector databases (Pinecone, ChromaDB, pgvector). Document intelligence, knowledge base Q&A, and semantic search that returns accurate results instead of hallucinations.
LLM Integration: Production integrations with OpenAI, Claude, and Gemini APIs. Streaming responses, tool-use workflows, structured outputs, and multi-model architectures. I've built AI features inside SaaS platforms, mobile apps, and real-time data pipelines.
AI Chatbots and Assistants: Context-aware support bots, sales agents, and internal tools connected to your CRM, Slack, knowledge base, or calendar. Web, WhatsApp, and API deployments.
AI Automation: Workflow automation that replaces manual processes. Lead qualification, data extraction, content generation, and business process automation with Python and FastAPI backends.
What sets me apart from most AI developers: I come from a production backend engineering background. Before going deep into AI development, I built high-throughput systems: a programmatic ad-tech platform processing millions of requests in Go, real-time data pipelines with Kafka and ClickHouse, scoring and fraud detection algorithms, and scalable SaaS applications with Node.js and Python. That means the AI systems I build don't break under load.
Stack: Python (FastAPI, LangChain, LangGraph, CrewAI), Node.js/TypeScript (NestJS), Go. OpenAI, Claude, Gemini APIs. Pinecone, ChromaDB, pgvector. PostgreSQL, MongoDB, Redis. Kafka, Docker, AWS.
Ideal AI projects for me:
Custom AI agent development (LangChain, LangGraph, CrewAI)
RAG systems and document intelligence pipelines
LLM integration into existing SaaS or internal tools
AI chatbots and conversational AI assistants
AI-powered automation and workflow orchestration
Backend infrastructure for AI-native applications
I respond within a few hours, ship documented code with full repo access, and build AI systems that keep working after the contract ends.
Need an AI developer who can ship production systems? Send a message or invite me to your job.
AI Agent Development
LangChain
Python
Artificial Intelligence
Prompt Engineering
AI Chatbot
Retrieval Augmented Generation
OpenAI API
Natural Language Processing
FastAPI
Large Language Model
Automation
Node.js
NestJS
API Development
Golang
PostgreSQL
Docker
Amazon Web Services
Back-End Development
Saman F.
Islamabad, Pakistan
$45/hr
5.0
10 jobs
I usually get involved when a business has one or more complex problems to solve. It might be a B2B or B2C platform that needs APIs, integrations, payments, or storefront work.
I have spent around 350 hours developing and maintaining APIs for Fastkey and 200 hours managing a Replit project, its integrations, and ongoing development. However, this only reflects my work completed through Upwork.
Outside Upwork, I have spent over half a decade working with Amazon, Shopify, Temu, WooCommerce, BigCommerce, custom storefronts, and eCommerce systems. I am comfortable building from scratch, fixing bugs, and continuing to scale live systems.
Other builds include:
โ Magento development and troubleshooting
โ eCommerce systems covering catalogs, orders, payments, inventory, and fulfillment
โ Connecting third-party platforms and APIs to retrieve and synchronize data
โ Android kiosk solutions with remote management and device controls
โ Paywall and payment integrations using RevenueCat, Stripe, and PayPal
โ Setting up WordPress across multiple domains
I keep the work straightforward. First, I understand how the business and current system operate. Then I make the technical changes without adding unnecessary complexity.
If your project needs someone who can work across the complete system rather than only one framework, feel free to get in touch.
SaaS Development
Ecommerce Store Setup
WordPress
Shopify
Amazon
Third-Party Integration
Replit
Acumatica
Kiosk
Oracle NetSuite
Payment Gateway Integration
Stripe
PayPal
Data Center Migration
Domain Migration
Next.js
TikTok Ad
Ad Setup
Web Page
Claude
Zlatko M.
Zivinice, Bosnia and Herzegovina
$65/hr
5.0
19 jobs
โก 100% Job Success ๐ฅ 80+ five-star reviews across platforms* ๐ 120+ shipped ๐ผ 7+ years ๐ US & EU founders. I take over AI-built codebases and fix what actually matters.
Your app was built fast with Lovable, Cursor, Claude Code, Bolt, Replit, or v0, and now the real problems are starting to show.
Maybe auth is breaking, Supabase permissions are wrong, Stripe is failing in production, or deployments keep falling over.
That is usually where I come in.
I do not automatically rewrite the whole thing. I figure out what is actually causing the problems, fix the parts that matter, get the product stable, ship the next version, and stay on if you need someone to keep building it.
โก๏ธ Clients love when I fix these in 48 hours:
โข Supabase auth inconsistent
โข RLS exposing data or blocking wrong users
โข Stripe test works, production doesn't
โข Subscriptions, billing portal, or webhooks unreliable
โข Vercel deploys suddenly failing
โข Env vars and API keys a mess
โข APIs fail silently
โข Onboarding half-finished
โข Works on desktop, broken on mobile
โข AI code duplicated and nobody wants to touch it
โข Outgrew Lovable/Cursor but keeping the product
โข MVP exists and you need one engineer to own the codebase
โก๏ธ Stack:
Frontend: Next.js, React, TypeScript, dashboards, onboarding, admin panels
Backend: Supabase, PostgreSQL, Firebase, auth, RLS, roles, Edge Functions
Payments: Stripe checkout, subscriptions, webhooks, live-mode bugs
AI: OpenAI, Claude, Gemini, n8n, third-party APIs
Infra: Vercel, GitHub, deployment debugging
โก๏ธ Best fit: you already have something. Users maybe. Codebase maybe messy. You need one person to read it, fix what matters, and keep shipping. Not a rebuild from scratch.
โก๏ธ Good fit: You like to move fast and don't like to deal with BS.
โก๏ธ Recent work:
StrikeOS: AI coaching, video analysis, scoring workflows
EditLayer: real-time editing layer for Next.js sites
Trend Finder: AI trend product, multiple data sources
Preflight: automated website QA with AI remediation
โก๏ธ How the workflow usually works:
1. You send the product or repo, what works, what's broken, what needs to ship next, and your deadline
2. I tell you quickly if I am a strong fit and what I would tackle first
3. We fix the highest-risk issues first: auth, payments, data access, deployments
4. I ship the next version and stay on if you want ongoing help
โก๏ธ Send me a message with your repo or product link. I will reply fast with whether I can help and where I would start.
โก๏ธ Relevant expertise: Next.js Developer, Supabase Developer, AI App Developer, SaaS Developer, Full-Stack Developer, Lovable Developer, Cursor Developer, Claude Code Developer, Stripe Integration, Supabase Auth, Supabase RLS, SaaS MVP, AI SaaS, API Integration, MVP to Production, Production Engineering, Vercel Deployment, PostgreSQL, React, TypeScript, Bolt Developer, Replit Developer, v0 Developer, Webhook Integration, Authentication, Row Level Security, Next.js App Router, SaaS Production, Fractional Engineer, Product Engineer
*Reviews across Upwork and direct client work.
Next.js
React
TypeScript
Supabase
Stripe
SaaS Development
AI App Development
Full-Stack Development
PostgreSQL
JavaScript
OpenAI API
API Integration
Firebase
Front-End Development
Back-End Development
Artificial Intelligence
Claude
n8n
Vercel
Web Application
Raj M.
Ahmedabad, India
$20/hr
4.8
33 jobs
I build AI agents, Voice AI, and business automation systems that connect conversations, business data, and real actions.
If you need an AI receptionist, WhatsApp assistant, lead qualification workflow, RAG-powered application, or AI feature inside an existing product, I can help you design and build it.
My work focuses on:
AI Agents & AI Assistantsโ Custom agents that understand requests, use tools, and complete business tasks.
Voice AI & AI Receptionistsโ Voice agents for inbound calls, customer support, lead qualification, and real-time actions.
WhatsApp AI & Automation โ AI-powered conversations, lead capture, follow-ups, and CRM workflows.
RAG & Knowledge-Based AIโ Systems that retrieve information from business documents, databases, and knowledge bases.
CRM & API Integrationsโ Connecting AI with CRMs, calendars, third-party APIs, and existing applications.
AI-Powered SaaS โ Full-stack AI products with frontend, backend, authentication, databases, and deployment.
A typical workflow might look like:
Lead โ AI Qualification โ CRM โ Follow-up โ Appointment โ Human Handoff
I handle the complete development process, from AI architecture and agent logic to backend development, integrations, automation, testing, and deployment.
Tech I work with: OpenAI, Claude, Gemini, RAG, n8n, React, Next.js, Node.js, Python, FastAPI, PostgreSQL, MongoDB, Redis, APIs, and Docker.
I focus on practical, production-oriented AI systems that solve real business problemsโnot just basic chatbots or disconnected prototypes.
If you have an AI idea, an existing application, or a workflow you want to automate, send me the details. I can help you turn it into a working solution.
AI Agent Development
AI Development
AI Chatbot
Voice & Tone Consistency
OpenAI API
n8n
API Integration
HighLevel
CRM Software
Conversational AI
Twilio
WhatsApp
Appointment Scheduling
Retrieval Augmented Generation
Python
Node.js
React
Next.js
TypeScript
Claude
Noman R.
Karachi, Pakistan
$5/hr
4.5
166 jobs
๐๐๐ซ๐'๐ฌ ๐ญ๐ก๐ ๐๐๐๐ฅ: Share your idea, and weโll turn it into a functional, scalable, and beautifully designed app that solves real problems and generates revenue.
๐๐ผ๐ ๐ฌ๐ผ๐๐ฟ ๐ฃ๐ฟ๐ผ๐ท๐ฒ๐ฐ๐ ๐ ๐ผ๐๐ฒ๐ ๐๐ฟ๐ผ๐บ ๐๐ฑ๐ฒ๐ฎ ๐๐ผ ๐๐ถ๐๐ฒ ๐ฃ๐ฟ๐ผ๐ฑ๐๐ฐ๐:
Every project follows a clear, proven journey, divided into milestones:
UI/UX design โ Front-end development โ Backend development โ Deployment โ Post-launch maintenance (8 weeks FREE)
This ensures transparency, predictable delivery, and zero surprises.
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I offer a ๐ณ๐ฟ๐ฒ๐ฒ ๐ฏ๐ฌ-๐บ๐ถ๐ป๐๐๐ฒ ๐ฐ๐ผ๐ป๐๐๐น๐๐ฎ๐๐ถ๐ผ๐ป to discuss and refine your idea, recommend the right tech stack, and forecast any ongoing costs as your user base grows, so you avoid surprises and make informed decision with clarity.
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Words from a recent client after working with us: (check more on my profile below)
"Noman Razzaq ๐๐จ ๐ซ๐๐ง๐ฎ ๐ฅ๐ง๐ค๐๐๐จ๐จ๐๐ค๐ฃ๐๐ก ๐๐ฃ๐ ๐๐จ ๐๐ก๐ฌ๐๐ฎ๐จ 10 ๐จ๐ฉ๐๐ฅ๐จ ๐๐๐๐๐ ๐ค๐ ๐ ๐ฃ๐ค๐ฌ๐๐ฃ๐ ๐ฌ๐๐๐ฉ ๐ฉ๐๐ ๐๐ช๐๐ก๐ ๐ฃ๐๐๐๐จ. ๐๐ ๐๐ง๐ ๐๐ค๐ฃ๐ฉ๐๐ฃ๐ช๐๐ฃ๐ ๐ฉ๐ค ๐ฌ๐ค๐ง๐ ๐ฉ๐ค๐๐๐ฉ๐๐๐ง ๐๐ฃ๐ ๐ ๐๐๐ซ๐ ๐๐ก๐ง๐๐๐๐ฎ ๐ง๐๐๐ค๐ข๐ข๐๐ฃ๐๐๐ ๐๐๐ข ๐ฉ๐ค ๐ค๐ฉ๐๐๐ง ๐๐ค๐ข๐ฅ๐๐ฃ๐๐๐จ."
โญโญโญโญโญ
- ๐ผ๐ก๐๐๐๐ ๐พ๐ค๐ฌ๐๐ฃ
๐๐ค๐ช๐ฃ๐๐๐ง ๐๐๐จ๐ข๐๐ง (๐๐ฃ๐๐ฉ๐๐ ๐๐๐ฃ๐๐๐ค๐ข)
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I've majored in software engineering, and I've used a myriad of technologies to help various businesses create mobile apps that have generated millions in revenue.
Over the past 5+ years, I have developed a wide range of iOS and Android mobile apps.
โ Food delivery app
โ Ride booking app (like Uber)
โ Real estate listing app (Like Airbnb)
โ Social media mobile app (like TikTok/Instagram)
โ Startups/Investment management mobile app
โ Wellness mobile app
โ Fitness and Nutrition mobile app (like CalAI, MyFitnessPal)
โ Sports mobile app
โ E-commerce mobile app
โ Language Learning Mobile App (Like Duolingo)
โ Event management mobile app
โ Grocery/Meal Planning mobile app
โ Freelance mobile app
โ Service Booking Mobile App (Home/HVAC)
โ Inventory Management Mobile App
โ Learning Management Mobile App
โ Appointment Booking Mobile App (Salon/Doctor)
โ Venue Booking Mobile App (Sports/Events)
โ Task Management Mobile App (Project Management/To-Do)
โ On-Demand Custom Mobile Apps
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As your ๐๐ฒ๐ฐ๐ต๐ป๐ถ๐ฐ๐ฎ๐น ๐ฝ๐ฎ๐ฟ๐๐ป๐ฒ๐ฟ, I go above and beyond to ensure your appโs success, from concept to launch.
What I Also Bring Beyond Development:
โ Technology & architecture consulting
โ Product roadmap & feature prioritization
โ Help you understand any possible ongoing costs with the project
โ Cost-effective tech stack selection with long-term cost planning
โ Scalability strategy as your user base grows
โ Technical support during investor or stakeholder discussions
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๐ ๐ฎ๐ถ๐ป๐๐ฒ๐ป๐ฎ๐ป๐ฐ๐ฒ & ๐๐ผ๐ป๐ด-๐ง๐ฒ๐ฟ๐บ ๐ฆ๐๐ฝ๐ฝ๐ผ๐ฟ๐
I provide free post-delivery support for 8 weeks, followed by flexible maintenance plans based on your product needs, usage scale, and future roadmap, always discussed transparently.
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๐ If youโre looking for someone who understands your product, owns outcomes, communicates clearly, and thinks long-term, letโs connect and build something solid.
โโ Check out my portfolio! โโ
Highlighted Skills:
Full Stack Developer | Expert Full Stack Developer | Full Stack Mobile App Developer | Full Stack AI Developer | Expert Full Stack Mobile App Developer | Mobile Developer | iOS Developer | Android App Developer | Mobile App Development | Cross platform development | AI App Developer | AI App | Mobile Developer | App Developer | Mobile App Development Consultation | IT Consultation | App Developer | AI App Developer | iOS App Development | iOS App | Android App Development | Hybrid App development | Mobile App Development Consultation | Flutter | Firebase | Dart | Flutter Dart | Flutter Firebase | iOS Development | Android App Development | Smartphone | User Authentication | In App Purchases | API Integration
Mobile App Redesign
Android App Development
App Development
Mobile App Development
Mobile App Design
Mobile App
iOS Development
Smartphone
AI App Development
Hybrid App Development
Flutter
Firebase
AI Mobile App Development
React Native
Website to Mobile App Conversion
Android App
iOS
Figma
UX & UI Design
Mobile App Development Consultation
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Emerald Tiger
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Kinetic Investments
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Summa Linguae
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