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I will develop scalable python backend apis with fastapi or flask rest apis
Vanshika
About this gig
Need a reliable Python backend for your application?
I build production-ready backend systems using FastAPI and Flask that are scalable, secure, and easy to maintain.
Services include:
- REST API Development
- FastAPI and Flask Applications
- Database Integration (PostgreSQL, MySQL, MongoDB)
- Authentication and Authorization
- JWT and Role-Based Access Control
- API Integrations
- Backend Architecture Design
- Error Handling and Validation
- API Documentation with Swagger/OpenAPI
- Deployment Support
I have experience building production systems involving cloud infrastructure, event-driven architectures, authentication systems, and enterprise workflows.
My technology stack includes:
Python, FastAPI, Flask, PostgreSQL, MongoDB, MySQL, Docker, Azure, REST APIs, JWT Authentication, SQLAlchemy, Alembic, and Git.
Whether you need a simple API endpoint, a complete backend service, or support scaling an existing application, I focus on delivering clean, maintainable, and production-ready solutions.
Please contact me before placing an order so we can discuss your requirements and choose the best package for your project.
Get to know Vanshika
Vanshika
Solution builder with expertise in full stack, backend, and AI ML
- FromIndia
- Member sinceJul 2026
Languages
English, Hindi, Italian
Software Engineer building production-ready backend, AI, cloud, and full-stack solutions. Experienced with Java, Python, FastAPI, Flask, React, MS Azure, PostgreSQL, TypeScript, MongoDB, OpenAI APIs, RAG, and ML. Built enterprise identity verification systems, AI analytics platforms, and intelligent automation workflows. I help businesses turn ideas into scalable software, APIs, AI features, and cloud applications that are reliable, maintainable, and ready for real users.
My Portfolio
FAQ
What technologies do you use for backend development?
I primarily work with Python, FastAPI, Flask, PostgreSQL, MySQL, MongoDB, SQLAlchemy, Docker, and REST APIs. I can also integrate third-party APIs and cloud services such as Azure.
Can you build REST APIs for existing applications?
Yes. I can build new APIs or integrate backend services into your existing web or mobile application.
Do you provide database design and integration?
Yes. I can design and integrate relational databases such as PostgreSQL and MySQL, as well as NoSQL databases such as MongoDB.
Can you implement authentication and user management?
Yes. I can implement JWT authentication, role-based access control (RBAC), session management, and secure user authentication systems.
Will I receive the source code?
Yes. All packages include complete source code ownership unless otherwise agreed upon.
Can you deploy the backend application?
Yes. I can help deploy your application using Docker, Render, Azure, AWS, or other cloud platforms depending on your requirements.
Can you integrate third-party APIs and services?
Absolutely. I can integrate payment gateways, email services, AI APIs, authentication providers, and other external services.
What information do you need before starting the project?
Please provide your project requirements, API specifications if available, database requirements, preferred technology stack, and any reference applications or documentation.
Can you work with existing codebases?
Yes. I can extend, optimize, debug, or refactor existing backend systems and APIs.
Should I contact you before placing an order?
Yes. Sending a message before ordering helps us clarify requirements, estimate timelines accurately, and choose the most suitable package for your project.
