You will get full-stack solutions for B2B, SaaS, and MVP requirements.
Project details
Let's discuss your requirements in Upwork Chat first, so I can provide a clear timeline and a fixed price or estimated hours.
I specialize in building modern, secure, and maintainable web apps using Node.js, NestJS, Express.js, React.js, Next.js, and Python. I focus on clean architecture, optimized databases, and production-ready deployments for SaaS, fintech, AI, logistics, and e-commerce products.
✅ Custom Web Applications – Scalable, secure, and fully optimized solutions
✅ Backend Development – REST/gRPC APIs, microservices, multi-tenant systems, and system design
✅ Frontend Development – Responsive, user-friendly interfaces with React & Next.js
✅ Database Management – PostgreSQL, MySQL, MongoDB, Redis; optimized and secure
✅ AI & Automation Integration – LLMs, predictive analytics, OCR, and workflow automation
✅ Third-Party API Integration – Payment gateways, SaaS platforms, banking APIs, and CRMs
✅ Real-Time & Performance Optimization – WebSockets, caching, load balancing, and production monitoring
✅ Bug Fixes & System Debugging – Reliable, maintainable, and error-free deployments
Send me a message today, and let’s discuss how we can bring your project to life!
I specialize in building modern, secure, and maintainable web apps using Node.js, NestJS, Express.js, React.js, Next.js, and Python. I focus on clean architecture, optimized databases, and production-ready deployments for SaaS, fintech, AI, logistics, and e-commerce products.
✅ Custom Web Applications – Scalable, secure, and fully optimized solutions
✅ Backend Development – REST/gRPC APIs, microservices, multi-tenant systems, and system design
✅ Frontend Development – Responsive, user-friendly interfaces with React & Next.js
✅ Database Management – PostgreSQL, MySQL, MongoDB, Redis; optimized and secure
✅ AI & Automation Integration – LLMs, predictive analytics, OCR, and workflow automation
✅ Third-Party API Integration – Payment gateways, SaaS platforms, banking APIs, and CRMs
✅ Real-Time & Performance Optimization – WebSockets, caching, load balancing, and production monitoring
✅ Bug Fixes & System Debugging – Reliable, maintainable, and error-free deployments
Send me a message today, and let’s discuss how we can bring your project to life!
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$200
|
Standard
$450
|
Advanced
$800
|
|---|---|---|---|
| Delivery Time | 2 days | 5 days | 10 days |
Number of Revisions | 1 | 3 | 5 |
Number of Pages | 2 | 5 | 8 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
About Sufian
Senior Full Stack Developer | Nestjs | Nextjs | AI Integrations
Multan, Pakistan - 2:05 am local time
I design and implement robust backend architectures from system design and database modeling to deployment, monitoring, and deep production debugging. My core stack includes Node.js, NestJS, Express.js, and Python, with strong expertise in PostgreSQL, MySQL, and MongoDB. I build clean REST and gRPC APIs, multi-tenant platforms, microservices, and monorepo-based systems designed for scale and long-term maintainability.
I have extensive experience integrating payment gateways, banking APIs, SaaS platforms, and third-party services, optimizing systems for reliability, performance, and high availability under real production load. I also develop AI-powered backend solutions, including LLM integrations, retrieval systems, and evidence-based processing pipelines using Python.
Strengths:
* Scalable system and database design
* Clean, modular, maintainable code
* API architecture (REST, gRPC)
* Microservices and distributed systems
* Fintech and payment integrations
* Performance optimization and production debugging
* AI and LLM backend integrations
Core Skills:
Node.js, NestJS, Express.js, Python, PostgreSQL, MySQL, MongoDB, Redis, Kafka, System Design, Multi-Tenant Architectures, Monorepos, Microservices, API Integrations, Git
I take full ownership of backend systems and deliver reliable, production-ready solutions without compromising architecture or code quality.
Let's connect to make your idea work.
𝗥𝗲𝗴𝗮𝗿𝗱𝘀,
Sufian
Steps for completing your project
After purchasing the project, send requirements so Sufian can start the project.
Delivery time starts when Sufian receives requirements from you.
Sufian works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements
I will collect full requirements for the project.
Stack Descision
We will decide on cost effective and fast tech stack decision. This also includes any third party integrations.