I will build scalable nodejs API with express,nestjs , mongodb or postgresql


Level 2
Sobre este Serviço
Need a High-Performance, Secure Backend for Your App?
Im an experienced Node.js backend developer specializing in building robust, scalable, and secure APIs using Node.js, NestJS, Express.js, MongoDB, and PostgreSQL. I deliver clean, maintainable, and optimized code tailored to your projects needs, whether its a simple REST API or a complex system.
My Services Include:
- REST & GraphQL API development
- Database design & optimization (MongoDB & PostgreSQL)
- Authentication & Authorization (JWT, OAuth, Role-based access)
- Payment gateway integrations (Stripe, PayPal)
- Server-side logic & cloud deployment
- High performance & scalability
Why Hire Me?
- Fast delivery without compromising quality
- Clean & documented code for easy maintenance
- Secure & scalable backend built for growth
- Professional support throughout your project
Lets create a backend that powers your app efficiently and reliably! Have a custom project or questions? Contact me today and lets bring your backend to life!
Conheça mais sobre Mahamodul Moon
Full Stack Developer Nextjs , NestJS Devops Expert
Level 2
- A partir deBangladesh
- Membro desdefev. de 2025
- Responde em aprox.:1 hora
- Última entrega2 dias
Idiomas
Bengali, Inglês
Meu portfólio
Outros serviços de Desenvolvimento de Software que eu ofereço
Perguntas frequentes
What technologies do you use for backend development?
I specialize in Node.js, NestJS, Express.js, TypeScript, MongoDB, and PostgreSQL to build secure, scalable, and high-performance backend solutions.
Can you integrate third-party APIs?
Yes! I can integrate any RESTful or GraphQL APIs, payment gateways like Stripe/PayPal, authentication services like Google OAuth, and more.
Will my backend be secure?
Absolutely. I follow best security practices including JWT authentication, password hashing, and input validation to protect your data and users.
Do you provide database design and optimization?
Yes, I design relational and non-relational databases, optimize queries, and ensure data consistency and scalability.
Can you handle real-time applications?
Yes, I can implement WebSocket or Socket.IO features for real-time messaging, notifications, and live updates.
Do you provide documentation for the backend?
Yes, I provide clear API documentation and setup instructions so you can easily integrate the backend with your frontend.
What if I need maintenance or updates later?
I offer ongoing support and maintenance services to keep your backend up-to-date, secure, and running smoothly.
Do you offer custom backend solutions?
Yes! Every project is customized to meet your business needs, whether it’s a simple API or a complex enterprise system.
How do you handle my data?
I treat all client data with the highest confidentiality. Your files and personal information are used only for the purpose of completing your order and are never shared with third parties without your explicit permission.
What if there’s a security concern?
I have a strict protocol for handling any security issues, including immediate containment, assessment, and corrective measures to ensure your data remains protected.
2 avaliações deste Serviço
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Ordenar por
R rachelberkey412
Cliente recorrente

Estados Unidos
Thank you so much!
Até US$ 50
$
1 dia
Tempo
Útil?A 
azam_acc

Reino Unido
Absolutely fantastic service!
Até US$ 50
$
1 dia
Tempo
M 
Resposta do freelancer
Útil?
2 avaliações deste Serviço
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Classificação detalhada
- Nível de comunicação do freelancer
- Qualidade da entrega
- Valor da entrega
Ordenar por
R rachelberkey412
Cliente recorrente

Estados Unidos
Thank you so much!
Até US$ 50
$
1 dia
Tempo
Útil?A 
azam_acc

Reino Unido
Absolutely fantastic service!
Até US$ 50
$
1 dia
Tempo
M 
Resposta do freelancer
Útil?

