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Fiverr Pro
English
$
USD
I will build scalable web app using aws nodejs expressjs
Qasim N
About this gig
Need a professional backend developer for your web application or API project?
You are in the right place! I provide secure, scalable, and high-performance backend development using Node.js, Express.js, AWS, MongoDB, MySQL, PostgreSQL, Firebase, and modern web technologies for startups, businesses, and SaaS platforms.
Services I Offer:
- Custom Backend Development
- REST API Development
- Node.js & Express.js Applications
- MongoDB, MySQL & PostgreSQL
- API Integration & Webhooks
- JWT & OAuth Authentication
- AWS Deployment & Cloud Services
- Bug Fixing & Performance Optimization
- Server Setup & Backend Architecture
- Third-Party API Integration
I can build scalable backend systems, secure APIs, cloud-based applications, authentication systems, database architectures, and complete backend solutions tailored to your business requirements.
Contact me now to discuss your project and build a secure, modern, and scalable backend solution for your web application.
Get to know Qasim N
Qasim N
Full Stack Developer AI Automation Chatbot LLM RAG Agents NodeJs Cloud
- FromPakistan
- Member sinceApr 2025
- Last delivery10 months
Languages
English
Full Stack AI Developer | AI Automation & Chatbot Expert | LLM RAG Agents | NodeJs Cloud Services | Testing & Automation
I specialize in building intelligent full stack AI solutions, chatbot systems, automation workflows, cloud-based applications, and robust testing pipelines that enhance performance, scalability, and business efficiency.
With a strong technical background across AI automation, LLM engineering, RAG systems, AI agents, n8n workflows, NodeJs development, QA automation, and cloud services, I deliver end-to-end solutions tailored to your needs.
My Portfolio
FAQ
What technologies do you use for backend development?
I mainly use Node.js, Express.js, AWS, MongoDB, MySQL, PostgreSQL, and Firebase to build secure and scalable backend systems and APIs.
Can you build REST APIs for my web or mobile app?
Yes, I can develop secure and high-performance REST APIs for web applications, mobile apps, SaaS platforms, and third-party integrations.
Do you provide AWS deployment and server setup?
Yes, I can deploy and manage applications on AWS services such as EC2, S3, Lambda, and configure cloud servers for production environments.
Can you fix bugs or optimize existing backend applications?
Yes, I can debug backend issues, improve API performance, optimize databases, and enhance application scalability and security.
Do you integrate third-party APIs and payment gateways?
Yes, I can integrate APIs like Stripe, PayPal, Twilio, Firebase, OpenAI, and other third-party services or custom webhooks.
Can you build authentication and user management systems?
Yes, I can implement secure authentication systems using JWT, OAuth2, role-based access control, and session management.
Do you work on full-stack web applications?
Yes, I can develop complete backend solutions and also assist with full-stack web application development based on project requirements.
What do you need before starting the project?
I will need your project requirements, feature list, API documentation (if available), design references, and hosting or AWS details if deployment is required.
