You will get a secure Node.js/NestJS REST API with PostgreSQL
Project details
Need a secure, scalable backend API for your web, mobile, or SaaS application?
I will build, extend, or improve your backend using Node.js, NestJS, TypeScript, and PostgreSQL, following clean architecture and production-ready development practices.
Depending on your selected package, I can help with:
• REST API development
• PostgreSQL database design and integration
• JWT/OAuth2 authentication and RBAC
• Input validation and error handling
• CRUD modules and business logic
• Third-party API integrations
• WebSockets and real-time features
• Swagger/OpenAPI documentation
• Docker setup
• Bug fixing and backend optimization
I have professional experience building SaaS, healthcare, financial, enterprise, and real-time backend systems.
Tech Stack: Node.js, NestJS, TypeScript, PostgreSQL, REST APIs, JWT, OAuth2, Docker, Swagger
Please message me before ordering if your project involves an existing codebase, complex integrations, or custom architecture so we can confirm the scope.
I will build, extend, or improve your backend using Node.js, NestJS, TypeScript, and PostgreSQL, following clean architecture and production-ready development practices.
Depending on your selected package, I can help with:
• REST API development
• PostgreSQL database design and integration
• JWT/OAuth2 authentication and RBAC
• Input validation and error handling
• CRUD modules and business logic
• Third-party API integrations
• WebSockets and real-time features
• Swagger/OpenAPI documentation
• Docker setup
• Bug fixing and backend optimization
I have professional experience building SaaS, healthcare, financial, enterprise, and real-time backend systems.
Tech Stack: Node.js, NestJS, TypeScript, PostgreSQL, REST APIs, JWT, OAuth2, Docker, Swagger
Please message me before ordering if your project involves an existing codebase, complex integrations, or custom architecture so we can confirm the scope.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$125
|
Standard
$400
|
Advanced
$900
|
|---|---|---|---|
| Delivery Time | 1 day | 4 days | 10 days |
Number of Revisions | 1 | 4 | Unlimited |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | - | - |
Content Upload | |||
Responsive Design | - | - | - |
Source Code |
About Ghulam
Backend & Voice AI Engineer | Node.js, Python, FastAPI, Twilio
Faisalabad, Pakistan - 4:35 am local time
I’m a backend-focused Software Engineer with 4+ years of professional experience building scalable applications using Node.js, TypeScript, Python, NestJS, FastAPI, PostgreSQL, AWS, and WebSockets.
Most recently, I engineered a low-latency Voice AI intake platform using Twilio Media Streams, streaming STT/TTS, WebSockets, Supabase, and automated scheduling integrations.
I can help you with:
• Backend & REST API development using Node.js, NestJS, Express.js, and FastAPI
• Voice AI and conversational systems using Twilio, WebSockets, Whisper, and STT/TTS
• SaaS architecture, multi-tenant systems, microservices, authentication, and RBAC
• PostgreSQL, MySQL, MongoDB, DynamoDB, and Supabase
• AWS Lambda, API Gateway, S3, Cognito, and Docker
• OAuth2, JWT, SSO, and secure authorization flows
• Payment, scheduling, and third-party API integrations
Relevant production experience includes:
• Real-time Voice AI systems with low-latency response requirements
• Enterprise User Management and SSO platforms
• Healthcare and virtual hospital systems
• Payment integrations using Stripe and Moyassar
• Real-time notifications and WebSocket services
If you need someone to build, extend, debug, or stabilize a backend system that must work reliably in production, send me the requirements and I’ll help determine the cleanest implementation approach.
Steps for completing your project
After purchasing the project, send requirements so Ghulam can start the project.
Delivery time starts when Ghulam receives requirements from you.
Ghulam works on your project following the steps below.
Revisions may occur after the delivery date.
Existing project/codebase
Is this a new backend or an existing project? If existing, please provide repository access or the relevant source files after the contract starts.