I will develop scalable backend apis using golang, nestjs, fastapi and laravel
About this gig
Expert Backend Developer | Golang (Fiber) | NestJS | FastAPI | Laravel | REST & GraphQL
Are you looking for a reliable backend developer to build high-performance, secure, and scalable APIs for your web or mobile application? You're in the right place!
With 14+ years of software development experience, I specialize in designing and developing enterprise-grade backend systems using modern technologies and best practices.
Technologies I Work With:
- Golang (Fiber)
- Node.js (NestJS)
- FastAPI (Python)
- Laravel (PHP)
- REST APIs
- GraphQL APIs
- PostgreSQL, MySQL, MongoDB
- Redis & Caching
- JWT Authentication & Authorization
- Docker & Microservices
- WebSockets & Real-time Applications
- Third-Party API Integration
- Payment Gateway Integration
Services I Offer:
- Custom Backend Development
- REST API Development
- GraphQL API Development
- Authentication & Authorization Systems
- SaaS Application Backend Development
- Microservices Architecture
- Database Design & Optimization
- Admin Panel APIs
- Mobile App Backend Development
- API Integration & Automation
- Performance Optimization
- Bug Fixing & Code Refactoring
Why Choose Me?
14+ Years of Development Experience
Clean, Maintainable & Scalable Code
Get to know Gunjan Sharma
Mobile and Web Application Development and MLM Software
- FromIndia
- Member sinceJan 2023
- Last delivery3 years
Languages
English, Hindi
FAQ
Which backend technologies do you work with?
I specialize in Golang (Fiber), NestJS (Node.js), FastAPI (Python), and Laravel (PHP).
Do you develop both REST and GraphQL APIs?
Yes. I build secure, scalable, and well-documented REST and GraphQL APIs based on your requirements.
Which databases do you support?
I work with PostgreSQL, MySQL, MongoDB, and Redis.
Can you develop complete backend systems?
Yes. I can build complete backend applications, including authentication, databases, APIs, and third-party integrations.
Do you provide authentication and authorization?
Yes. I implement JWT, OAuth, Role-Based Access Control (RBAC), and other secure authentication mechanisms.
Can you integrate third-party services?
Yes. I can integrate payment gateways, Firebase, email services, SMS providers, social logins, and other external APIs.
Do you work with microservices and Docker?
Yes. I develop microservices-based architectures and provide Docker containerization and deployment support.
Can you work on existing projects and fix bugs?
Yes. I can enhance existing applications, refactor code, optimize performance, and resolve bugs.
Will you sign an NDA?
Yes. I respect client confidentiality and can sign an NDA if required.
Should I contact you before placing an order?
Yes. Please message me before ordering so we can discuss your requirements and choose the best package for your project.
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
P pierretan99
Repeat Client

Malaysia
Fast response as always!
Helpful?P pierretan99
Repeat Client

Malaysia
Fast, responsive and nice person to work with.
Helpful?
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Recommend to a friend
- Service as described
Sort By
P pierretan99
Repeat Client

Malaysia
Fast response as always!
Helpful?P pierretan99
Repeat Client

Malaysia
Fast, responsive and nice person to work with.
Helpful?

