I will develop secure backend api with nodejs nest laravel or java spring boot


Level 2
About this gig
Need a secure, scalable backend for your web or mobile application?
I develop production-ready REST APIs using one suitable stack: Node.js/Express, NestJS, Laravel, or Java Spring Boot.
Services include:
- API architecture, CRUD and business logic
- PostgreSQL, MySQL, MariaDB or MongoDB
- Schema design, relations, migrations, seeders and query optimization
- JWT/OAuth authentication, refresh tokens and role-based access
- Validation, pagination, search, filtering and error handling
- Stripe/payments, webhooks, email, storage and third-party APIs
- File uploads, notifications and admin-ready endpoints
- Swagger/OpenAPI documentation and Postman collection
- Unit/integration testing, Docker and deployment support
- Existing backend bug fixing, refactoring and performance improvement
You receive clean, maintainable source code, secure configuration, documentation and post-delivery support.
One backend framework is selected per project; all four are not normally combined. Message me before ordering with your features, database, integrations and deadline.
Get to know Shahzaib Saeed
Crafting your dreams one algorithm at a time
Level 2
- FromPakistan
- Member sinceFeb 2023
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Spanish, French, German
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FAQ
Which backend framework will you use?
I can use Node.js with Express, NestJS, Laravel or Java Spring Boot. I will recommend one framework based on your existing technology, project complexity, scalability requirements, deadline and budget.
Will you use all four frameworks in one project?
No. One suitable backend framework is normally selected for each application. Combining multiple backend frameworks is only required for specific microservices architectures and needs a custom quotation.
Which databases do you support?
I work with PostgreSQL, MySQL, MariaDB, MongoDB and Firebase. I can design schemas, relationships, migrations, indexes, queries, seed data and transactions according to the selected database.
Can you develop authentication and user roles?
Yes. I can implement login, registration, password encryption, JWT access and refresh tokens, password recovery, email verification, OAuth and role-based access control.
Can you create a backend for my mobile application?
Yes. I can build secure REST APIs for Flutter, React Native, Android and iOS applications, including authentication, database operations, file uploads, notifications and admin-panel endpoints.
Can you connect the backend to my existing frontend?
Yes. I can integrate the backend with an existing Angular, React, Next.js, mobile or other frontend application when the source code and technical requirements are provided.
Do you integrate payments and third-party APIs?
Yes. I can integrate Stripe and other supported payment providers, email services, cloud storage, SMS, maps, webhooks and external REST APIs. Please discuss each integration before ordering.
Do you provide API documentation?
Yes. Depending on the package, I provide a Postman collection, Swagger or OpenAPI documentation, environment-variable instructions and endpoint usage details.
Can you fix or improve an existing backend?
Yes. I can fix bugs, add endpoints, improve database queries, refactor code, enhance security, integrate external services or complete an unfinished Node.js, NestJS, Laravel or Spring Boot backend after reviewing it.
What does post-delivery support include?
Post-delivery support covers bugs directly related to the approved and delivered scope. New endpoints, changed requirements, new integrations and third-party platform changes require an additional order.
1 reviews for this Gig
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Rating Breakdown
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maximus31b

United States
Shahzaib was not only professional and delivered EXACTLY what I requested, but the turnaround rate of his work was amazing! I find it hard to beat this service for minor fixes in your code with an excellent turn around, quality work, and EXCELLENT client/customer skills. Shahzaib has presented himself...
Up to $50
Price
1 day
Duration
C 
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1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
M 
maximus31b

United States
Shahzaib was not only professional and delivered EXACTLY what I requested, but the turnaround rate of his work was amazing! I find it hard to beat this service for minor fixes in your code with an excellent turn around, quality work, and EXCELLENT client/customer skills. Shahzaib has presented himself...
Up to $50
Price
1 day
Duration
C 
Seller's Response
Helpful?
