You will get scalable NestJS backend APIs for your SaaS
Project details
You will get a scalable and production-ready NestJS backend tailored to your business needs, including clean architecture, secure APIs, database integration, and third-party services such as Stripe or external APIs.
With over 5 years of experience building real-world systems in logistics, marketplaces, SaaS platforms, and AI-driven products, I focus on delivering reliable backend solutions that are structured, maintainable, and ready for production.
My work emphasizes performance, scalability, and clean system design, ensuring your backend is not just functional, but built to grow with your product.
With over 5 years of experience building real-world systems in logistics, marketplaces, SaaS platforms, and AI-driven products, I focus on delivering reliable backend solutions that are structured, maintainable, and ready for production.
My work emphasizes performance, scalability, and clean system design, ensuring your backend is not just functional, but built to grow with your product.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$250
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 1 | 2 | 3 |
Number of Pages | 1 | 1 | 1 |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
About Cosmin
Full Stack Developer | AI Automation, NestJS & API Integrations
Biled, Romania - 3:30 pm local time
I specialize in:
• NestJS & Node.js backend development
• API integrations (Stripe, social media APIs, third-party services)
• AI/LLM integrations and automation workflows
• PostgreSQL, MongoDB, and database design
• React & Angular frontend development
I’ve worked on sustainability platforms, logistics systems, marketplaces, and AI-driven products, helping teams build reliable and scalable solutions from idea to production.
Recent work includes:
• AI-assisted product import systems using scraping + LLM extraction
• Social media automation and analytics platforms
• Stripe subscription/payment integrations
• Scheduled task systems and backend automation workflows
I focus on writing clean, maintainable code and delivering solutions that solve real business problems.
If you need help with backend systems, AI integrations, automation, or full-stack development, feel free to reach out.
Steps for completing your project
After purchasing the project, send requirements so Cosmin can start the project.
Delivery time starts when Cosmin receives requirements from you.
Cosmin works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement analysis and system design
I review your requirements and design the backend architecture, database schema, and API structure before development starts.
Database and project setup
I set up the NestJS project, configure the database, define entities, and establish the core architecture.