You will get build a scalable MERN stack web application tailored to your business needs
Top Rated
Top Rated
Project details
I build robust, scalable, and secure full stack applications designed for startups, SaaS platforms, enterprise dashboards, and AI powered systems.
Core MERN Expertise
🔹 Frontend Engineering with React
React 18 with Hooks and Context API
Advanced state management: Redux Toolkit, Zustand
Server side rendering with Next.js
TypeScript integration
Component driven architecture
Tailwind CSS, Material UI, Chakra UI
Performance optimization using memoization, lazy loading, code splitting
Secure authentication flows using JWT and OAuth
🔹 Backend Engineering with Node.js + Express
RESTful API architecture
GraphQL API implementation
Microservices design
Authentication & authorization using JWT, OAuth2
Role based access control
Input validation and schema enforcement
Secure API rate limiting
Background job processing using BullMQ
Real time systems with Socket.io
🔹 Database Architecture with MongoDB
Schema design and indexing strategies
Aggregation pipelines for analytics
Query optimization
Data modeling for high throughput systems
Multi tenant architecture
Atlas deployment & scaling
Let's meet!
Core MERN Expertise
🔹 Frontend Engineering with React
React 18 with Hooks and Context API
Advanced state management: Redux Toolkit, Zustand
Server side rendering with Next.js
TypeScript integration
Component driven architecture
Tailwind CSS, Material UI, Chakra UI
Performance optimization using memoization, lazy loading, code splitting
Secure authentication flows using JWT and OAuth
🔹 Backend Engineering with Node.js + Express
RESTful API architecture
GraphQL API implementation
Microservices design
Authentication & authorization using JWT, OAuth2
Role based access control
Input validation and schema enforcement
Secure API rate limiting
Background job processing using BullMQ
Real time systems with Socket.io
🔹 Database Architecture with MongoDB
Schema design and indexing strategies
Aggregation pipelines for analytics
Query optimization
Data modeling for high throughput systems
Multi tenant architecture
Atlas deployment & scaling
Let's meet!
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$3,000
|
Standard
$6,000
|
Advanced
$11,000
|
|---|---|---|---|
| Delivery Time | 10 days | 20 days | 35 days |
Number of Revisions | 2 | 3 | 5 |
Number of Pages | 5 | 10 | 15 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$1,000 - $3,000
Additional Revision
+$100
Additional Page
+$300
38 reviews
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DH
Daniel H.
May 20, 2026
Build AI Learning Tool
I recommend choosing Tanzeel for your engineering work! He's smart and hardworking!
BT
Bekhruz T.
May 20, 2026
Deploy and maintain a monitoring system on your AWS account (DevOps)
Extremely responsive, clear communication and fast. Will definitely work together again in the future
JG
Justin G.
Mar 3, 2026
Full Stack Developer (PHP, MySQL, SASS, JavaScript) – Long-Term Opportunity
JR
Jeff R.
Feb 18, 2026
NodeBB Website Fix
I had an excellent experience working with Tanzeel and team. They delivered high-quality work on time with clear communication throughout the project. I always knew the status of the project, and any questions or adjustments were handled immediately without delays or confusion. Their technical expertise was evident from day one.
I highly recommend them to anyone.
I highly recommend them to anyone.
MD
Marc D.
Feb 2, 2026
AI Call Center POC Developer (Realtime API + SIP + Voice Agent)
deadlines where not met, and sold as Canadian team, while it was Pakistan devs
About Tanzeel ur
Senior AI Engineer | AI Agents, RAG, Automation | Python/Next.js
95%
Job Success
Cambridge, Canada - 3:18 am local time
I worked on these projects in my recent Upwork history:
→ iFIT - AI-driven fitness platform serving 6M+ users, Led backend architecture for a high-scale web + mobile SaaS handling millions of daily active sessions.
→ Coursology - AI-powered EdTech SaaS agent trusted by 1M+ students (web, mobile, Chrome extension)
→ Intellitix - QR-based event ticketing SaaS, $1B+ in cashless transactions, 40M+ attendees
→ Cadenza AI - AI assistant for nonprofits, adopted by 500+ organizations
→ Augmentt - Cybersecurity SaaS for MSPs, raised $18M Series A
→ Total Dental Healthcare - Healthcare web + mobile apps + Chrome extension across 13 locations
What I build for clients:
AI Agents & LLM Applications
RAG pipelines, multi-agent systems, AI chatbots, and LLM-powered workflows using LangChain, LlamaIndex, OpenAI API, and Anthropic Claude. Systems that work in production — not prototypes.
Full-Stack Web & SaaS Development
End-to-end SaaS platforms and web applications using Next.js, React, Node.js, Python, and FastAPI. From MVP to scaled product with real users.
Machine Learning & AI Integration
Custom ML models, NLP pipelines, and AI feature integration into existing products. If you have a SaaS or web app and want to make it intelligent, this is the lane.
Tech stack:
- Frontend: Next.js · React · TypeScript · Tailwind CSS
- Backend: Node.js · Python · FastAPI · Django · Express · NestJS
- AI/ML: LangChain · LlamaIndex · OpenAI API · Anthropic Claude · RAG · LLM fine-tuning
- Databases: PostgreSQL · MongoDB · Pinecone · Redis
- Cloud: AWS · Docker · CI/CD · Vercel
If you're building an AI agent, LLM app, SaaS product, or full-stack platform, send me the brief.
Reach out to schedule a call on Upwork
Steps for completing your project
After purchasing the project, send requirements so Tanzeel ur can start the project.
Delivery time starts when Tanzeel ur receives requirements from you.
Tanzeel ur works on your project following the steps below.
Revisions may occur after the delivery date.
Requirements & Planning
Gather project scope, features, tech stack decisions, database schema outline, UI expectations, and delivery timeline. Clarify APIs, authentication needs, and deployment target.
UI/UX & Project Setup
Initialize MERN architecture, configure React app structure, set up Express server, MongoDB connection, environment variables, and create base UI layout.