You will get Backend REST APIs using NodeJS, Express with MongoDB
Project details
Are you in need of a skilled backend developer to build scalable RESTful APIs using Node.js and integrations third-party APIs?
Hi, I’m Dani, a Node.js backend specialist. I have 2 years of experience and have made more than 10+ enterprise-grade applications. I can help you implement high-performance APIs to your project needs. I have strong expertise with nodejs/nestJS Express.js, JSON, JWT, OAuth, NoSQL , databases, Postman, API documentation, third-party API integration, and AWS services.
For data storage, I focus on MongoDB / postgress SQL, providing secure and scalable solutions for your database needs.
Have a unique idea or different requirements? Don’t hesitate to reach out! Let’s discuss your project and figure out the best way to bring it to life.
Hi, I’m Dani, a Node.js backend specialist. I have 2 years of experience and have made more than 10+ enterprise-grade applications. I can help you implement high-performance APIs to your project needs. I have strong expertise with nodejs/nestJS Express.js, JSON, JWT, OAuth, NoSQL , databases, Postman, API documentation, third-party API integration, and AWS services.
For data storage, I focus on MongoDB / postgress SQL, providing secure and scalable solutions for your database needs.
Have a unique idea or different requirements? Don’t hesitate to reach out! Let’s discuss your project and figure out the best way to bring it to life.
Programming Languages
JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$99
|
Standard
$350
|
Advanced
$599
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 1 | 2 | Unlimited |
Design Customization | - | - | - |
Content Upload | - | - | - |
Responsive Design | - | - | - |
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $100
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MI
Md Esrafil I.
Feb 20, 2026
Backend Developer Needed for AWS S3 File Upload Integration
Absolutely Outstanding – Dani Gain Delivers Excellence!
Dani Gain is truly exprienced nodejs . From start to finish, the experience was nothing short of impressive. The professionalism, attention to detail, and commitment to quality really stand out. Every interaction feels thoughtful and genuine, showing a deep understanding of what customers need and value.
What makes Dani Gain special is the consistency — delivering high-quality results while maintaining a friendly, approachable attitude. It’s rare to find someone who combines skill, reliability, and passion so seamlessly.
If you’re looking for top-tier service and an experience that exceeds expectations, Dani Gain is the clear choice. Highly recommended!
Dani Gain is truly exprienced nodejs . From start to finish, the experience was nothing short of impressive. The professionalism, attention to detail, and commitment to quality really stand out. Every interaction feels thoughtful and genuine, showing a deep understanding of what customers need and value.
What makes Dani Gain special is the consistency — delivering high-quality results while maintaining a friendly, approachable attitude. It’s rare to find someone who combines skill, reliability, and passion so seamlessly.
If you’re looking for top-tier service and an experience that exceeds expectations, Dani Gain is the clear choice. Highly recommended!
About Dani
Full Stack Developer | SaaS Developer | Backend Developer | Node
Khulna, Bangladesh - 7:14 pm local time
As a Full Stack Developer, I take responsibility for systems end-to-end and also combine robust backend architecture with clean, modern interfaces. My front-end work is primarily React-based and often takes full ownership of both frontend and backend development, replacing the need for separate React or web developers by building a complete, well-structured system from end to end.
As a SaaS Developer, I help companies design, build and scale SaaS products, connect external api like google map and API-driven web applications intended for long-term use. When projects require a larger team, I can also step into a Project Lead role — managing developers, coordinating deliverables, and ensuring the overall system stays on track technically.
In my day-to-day work as a Backend Developer, I design and implement backend services, APIs and data models that power SaaS platforms and complex web applications. I regularly work with ExpressJS and NestJS, using Prisma ORM to build clean, maintainable data layers across both SQL and NoSQL databases.
Clients typically work with me when they need:
- Full Stack Developer who can own both frontend and backend end-to-end.
- SaaS Developer who understands long-term scalability and growth constraints
- Backend Developer with real, hands-on production system experience
- React Developer with strong focus UI
- API-driven architectures with seamless third-party integrations
- MongoDB & Firebase — Firestore, Realtime DB, Authentication, Cloud Messaging, Push Notifications, and Storage
- Authentication & Authorization using JWT and OAuth
- Payment Gateway Integration — Stripe and PayPal
- Email & SMS workflows via SendGrid (SMTP) and Twilio
- Git, GitHub, GitHub Actions, and CI/CD Pipelines for reliable deployments
- Linux, AWS S3 for infrastructure, storage and delivery
- Real-time features with SocketIO and location services via Google Maps (GCP)
- Swagger for clean, maintainable API documentation
Do you have any questions? Let us connect and talk. You do not have to hire me if you feel I am not the person for the job.
Steps for completing your project
After purchasing the project, send requirements so Dani can start the project.
Delivery time starts when Dani receives requirements from you.
Dani works on your project following the steps below.
Revisions may occur after the delivery date.
Requirement Gathering
Understand and clarify the client’s needs.
Project Planning & Design
Plan the architecture, database, and API structure.