You will get develop secure and high performance full stack web applications
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Project details
Do you want a secure, fast, and scalable full stack web application for your business or startup?
I am a Senior Full Stack Developer with 7+ years of experience building React, Node.js, Express, MongoDB, and Django web applications. I focus on performance, security, and production-ready code
What I can build for you:
• Full stack web applications (MERN / Django stack)
• Secure authentication & role-based access
• REST APIs & third-party integrations
• Responsive & modern UI
• High-performance backend with optimized queries
• Bug fixes & performance optimization
• Admin dashboards & business tools
Why clients hire me:
• Scalable & maintainable code
• Secure, production-ready web apps
• Clear communication & fast delivery
• Business-oriented solutions
Whether you need a startup MVP, enterprise dashboard, or existing web app improvement, I can deliver a reliable and secure solution.
Message me before ordering to discuss your project and timeline.
I am a Senior Full Stack Developer with 7+ years of experience building React, Node.js, Express, MongoDB, and Django web applications. I focus on performance, security, and production-ready code
What I can build for you:
• Full stack web applications (MERN / Django stack)
• Secure authentication & role-based access
• REST APIs & third-party integrations
• Responsive & modern UI
• High-performance backend with optimized queries
• Bug fixes & performance optimization
• Admin dashboards & business tools
Why clients hire me:
• Scalable & maintainable code
• Secure, production-ready web apps
• Clear communication & fast delivery
• Business-oriented solutions
Whether you need a startup MVP, enterprise dashboard, or existing web app improvement, I can deliver a reliable and secure solution.
Message me before ordering to discuss your project and timeline.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Localization, Performance OptimizationWhat's included
| Service Tiers |
Starter
$150
|
Standard
$300
|
Advanced
$480
|
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 12 days |
Number of Revisions | 2 | 4 | 7 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code | - | - | - |
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Yasir conducted himself professionally throughout the project, and the work completed met expectations. While we encountered some hiccups that led to scope changes and extended timelines, both parties reached a mutual agreement to pause and resume work in the future. I would recommend Yasir and his team.
About Yasir
AI Systems Architect | LLM Agents, Automation & Full-Stack SaaS, n8n
100%
Job Success
Karachi, Pakistan - 4:08 pm local time
For the past 8 years, I've built AI agents, AI automation, workflow automation, API integrations, and full-stack SaaS systems that turn manual bottlenecks into software that scales.
I measure success by your ROI not lines of code.
Why Clients Hire Me
🏆 Top Rated Plus (Top 1% of Upwork Talent)
✅ 100% Job Success
✅ 74+ completed projects
✅ 2,300+ hours worked
✅ $90K+ delivered for founders and global teams
I hold both a BS in Computer Science and an MBA in Finance, allowing me to bridge engineering with business outcomes. I don't just build software—I design systems that create measurable business value.
Clients trust me with projects where failure isn't an option:
AI systems that perform reliably under production load
Payment platforms that can't afford failed transactions
Automation that eliminates hours of repetitive manual work
Scalable SaaS products built for long-term growth
WHAT I BUILD
🤖 AI Agents, LLM Systems & RAG Applications
- Solutions
- Custom AI Agents
- AI Copilots
- Retrieval-Augmented Generation (RAG)
- AI Chatbots
- AI Workflows
- Knowledge Bases
- Document AI
- Vector Search
- Semantic Search
- Prompt Engineering
- AI Automation
- Technologies
- OpenAI (GPT-4o)
- Claude
- Gemini
- LangChain
- Pinecone
- Supabase Vector
- Embeddings
- File Processing
⚡ Workflow Automation & Business Process Automation
- Platforms
- n8n
- Make (Integromat)
- Zapier
- Microsoft Power Automate
- ManyChat
- Automation Solutions
- API Integrations
- CRM Automation
- Email Automation
- Marketing Automation
- Document Automation
- Google Sheets Automation
- Excel Automation
- Webhook Automation
- Event-Driven Workflows
- Third-Party System Integrations
💻 Full-Stack SaaS Development
Building scalable MERN/PERN applications using:
- Frontend
- React
- Next.js
- TypeScript
- Backend & Architecture
- Multi-tenant SaaS Architecture
- Authentication & Authorization
- Subscription Management
- Billing Systems
- Admin Portals
- Dashboards
- Responsive Applications
- SaaS MVP Development
- Production-Ready Platforms
🔗 Backend Development, APIs & System Integrations
- Backend Technologies
- Node.js
- NestJS
- Express
- Python
- FastAPI
- Django
- Backend Expertise
- REST APIs
- API Integrations
- OAuth2
- JWT Authentication
- RBAC
- Service Accounts
- OpenAPI / Swagger
- Postman
- Webhooks
- Audit Logging
- Secure API Design
- Scalable Software Architecture
💳 FinTech & Payment Integrations
- Stripe
- Stripe Connect
- Subscription Billing
- Payment Gateways
- Secure Payment Processing
- Webhooks
- Financial Workflows
- Reconciliation Logic
- KYC/KYB-aware Systems
- Compliance-focused Backend Development
🚀 No-Code & Low-Code Solutions
- When speed matters, I leverage the right tools:
- Glide
- WordPress
- Elementor
- Botpress
- Make
- ManyChat
SELECTED RESULTS
🚀 AI Proposal Generation SaaS
Built an AI-powered proposal generation platform from MVP to production featuring:
- Multi-tenant architecture
- Authentication & user management
- Subscription billing
- Knowledge-base matching
- AI-powered proposal generation
- Word & PDF export
- GPT-4o-powered AI pipeline
🎓 Learning Management Platform
Delivered a complete LMS including:
- Stripe & PayPal integrations
- Automated certificates
- Full RTL support
- Responsive UI
- Secure authentication
- Production-ready deployment
Result: The client confirmed the platform was stable and production-ready on the very first handover.
🤖 OpenAI Agent Platform
Won a paid 24-hour engineering trial against multiple senior developers before being selected to build the production platform.
Delivered:
- REST APIs
- JWT Authentication
- RBAC
- Audit Logging
- API Documentation
- Production-ready Backend Architecture
HOW I WORK
You get a Systems Architect, not just a developer.
- Every project includes
- Clear communication
- Honest technical trade-offs
- Secure architecture
- Scalable system design
- Well-documented code
- Thorough testing
- Long-term maintainability
Whether you need:
- AI Agents
- SaaS MVPs
- API Integrations
- Workflow Automation
- CRM Integrations
- AI Chatbots
- Business Process Automation
- Enterprise Platforms
I focus on delivering software that solves real business problems—not just completed tasks.
Many of my clients return for additional work, which I consider the strongest proof that the software continues delivering value long after launch.
Ready to Build?
Click "Invite to Job" or "Send Message" with a brief description of your project, and I'll explain exactly how I'd architect and deliver it.
Steps for completing your project
After purchasing the project, send requirements so Yasir can start the project.
Delivery time starts when Yasir receives requirements from you.
Yasir works on your project following the steps below.
Revisions may occur after the delivery date.
Let's have a meeting to discuss details for 100% satisfaction
Let's have a meeting to discuss details for 100% satisfaction