You will get scalable Node.js, NestJS backend APIs with SQL, NoSQL Database
Top Rated
Project details
I am a Top Rated Plus backend developer specialized in building secure, scalable and maintainable server-side systems using Node.js, NestJS, Express.js, MongoDB or SQL (PostgeSQL, MySQL, MSSQL). My focus is on clean architecture, scalability, performance optimization and long-term maintainability.
Core Expertise
✔️ Node.js
✔️ NestJS
✔️ Express.js
✔️ MongoDB
✔️ REST API Development
✔️ JWT & OAuth Authentication
✔️ Database Design & Optimization
✔️ API Integrations
✔️ TypeScript
✔️ SQL / MySQL / PostgreSQL
Services I provide
✅Backend development for web and SaaS applications
✅REST API development and architecture
✅Authentication and role-based access systems
✅Database integration and optimization
✅Third-party API integrations (payment, email, cloud, etc.)
✅Debugging and improving existing backend systems
✅Scalable backend architecture design
✅Custom backend solutions
Why clients work with me
➣ Clean, production-ready code
➣ Scalable and secure architecture
➣ Performance-focused development
➣ Proper testing before delivery
➣ Clear communication and collaboration
➣ Reliable long-term support
📌 Available for SaaS backend development, API architecture and long-term backend projects.
Core Expertise
✔️ Node.js
✔️ NestJS
✔️ Express.js
✔️ MongoDB
✔️ REST API Development
✔️ JWT & OAuth Authentication
✔️ Database Design & Optimization
✔️ API Integrations
✔️ TypeScript
✔️ SQL / MySQL / PostgreSQL
Services I provide
✅Backend development for web and SaaS applications
✅REST API development and architecture
✅Authentication and role-based access systems
✅Database integration and optimization
✅Third-party API integrations (payment, email, cloud, etc.)
✅Debugging and improving existing backend systems
✅Scalable backend architecture design
✅Custom backend solutions
Why clients work with me
➣ Clean, production-ready code
➣ Scalable and secure architecture
➣ Performance-focused development
➣ Proper testing before delivery
➣ Clear communication and collaboration
➣ Reliable long-term support
📌 Available for SaaS backend development, API architecture and long-term backend projects.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$199
|
Advanced
$399
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 15 days |
Number of Revisions | 3 | 7 | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100Frequently asked questions
9 reviews
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AB
Audrey B.
Sep 14, 2024
Django Developer (Must be a Python Guru)
It was a pleasure working with such a talented Django Developer. His Python expertise played a key role in delivering the project on time. He tackled every challenge with a positive, can-do attitude. I’m extremely satisfied with the results and would happily collaborate with him again.
AN
Ali N.
Mar 24, 2024
WordPress Core web vitals
Muhammad Asad delivered outstanding work on our project, exceeding expectations with his expertise and dedication. His professionalism and quick turnaround times were truly impressive. I highly recommend him for top-notch results!
JB
JAX B.
Jan 10, 2024
Angular Developer (Senior Level)
So refreshing to find someone who nails it without any back-and-forth. Great experience!
RS
Ricky S.
Dec 8, 2023
Senior Software Engineer Expert Needed
Despite the unexpected technical challenges, he handled them with impressive expertise. If possible, I'd rate him 10 out of 5 stars. He truly stood out as an exceptional contributor. His skill and reliability has assured me that he will be my go-to for future development tasks.
AB
Audrey B.
Oct 24, 2023
Looking for an Exceptional MERN Stack Developer
It's been a pleasure working with Asad, we couldn't have asked for a better developer. The process of integration and development was executed flawlessly and the features he rolled out are exceptional.
About Asad
Senior SaaS Developer | NestJS, Next.js, AI & RAG Integrations
100%
Job Success
Lahore, Pakistan - 6:59 am local time
I’m a Senior SaaS Developer with 10+ years of production experience, AWS certification and Top Rated Plus status (Top 3%). I build systems that stay fast, stable and maintainable as products grow in users, data and complexity.
What I’ve shipped at scale:
⇢ Unified NestJS microservices backend powering 5+ SaaS products for 12M+ users, with a 45% API latency reduction
⇢ CloudDrive handling 500K daily file operations with sub-100ms response under peak load using AWS S3, Lambda and BullMQ
⇢ Zero-downtime migration of 50M+ MongoDB records with batch processing and rollback-safe deployment strategy
⇢ RevBits PAM - Enterprise level privilege access management platform and Globee Gold Award winner
⇢ Built a multi-tenant AI layer with org-aware RAG chatbots and AI onboarding flows that turn company data, documents, and workflows into private knowledge bases for each tenant
What I build for clients:
✔ Multi-tenant SaaS platforms with RBAC, billing, and organization-level data isolation
✔ NestJS microservices and event-driven backends using BullMQ, RabbitMQ, and Kafka
✔ Next.js and React frontends connected to production-grade APIs
✔ AWS infrastructure with Lambda, S3, EC2, RDS, Docker, Kubernetes and CI/CD pipelines
✔ SaaS MVPs built to production standards, not prototype quality
✔ AI-powered workflows, including LLM middleware, RAG systems, document automation and chat features
Stack:
Backend: NestJS, Node.js, Express.js, Python
Frontend: Next.js, React, Angular, TypeScript, JavaScript
Databases: PostgreSQL, MySQL, MongoDB, Redis
Cloud: AWS, Docker, Kubernetes, CI/CD
AI: OpenAI API, LangChain, RAG, LLM middleware
Queues: BullMQ, RabbitMQ, Kafka
I work async-first, communicate clearly and focus on shipping systems that do not collapse when usage grows. If you are building a SaaS product, scaling an existing platform or adding AI features into a real business workflow, I can help with the architecture, execution, and long-term reliability.
Steps for completing your project
After purchasing the project, send requirements so Asad can start the project.
Delivery time starts when Asad receives requirements from you.
Asad works on your project following the steps below.
Revisions may occur after the delivery date.
Project Discussion and Requirements
We will discuss your project goals, required backend features, API structure, authentication flow, database requirements, and third-party integrations before development starts.
Backend Architecture and Development
I will develop the backend APIs, database structure, authentication system, and business logic using Node.js, NestJS, Express.js and MongoDB based on the approved requirements.