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Fiverr Pro
English
$
USD
I will build production grade scalable rest apis with fastapi
Sanaulla H
About this gig
I'm a backend engineer with 4+ years building production systems including enterprise applications deployed across 500+ branches, with integrations into ERP systems and national identity verification services. I bring that same production rigor to every FastAPI project I build on Fiverr.
What you get:
- Clean, modular FastAPI architecture not a single-file prototype
- JWT authentication with refresh tokens & role-based access control
- PostgreSQL + SQLAlchemy + Alembic migrations
- Celery background tasks + Redis caching/rate limiting for real scalability
- Pydantic v2 validation & auto-generated OpenAPI/Swagger docs
- Test coverage so your API doesn't break in production
- Docker setup with a clear deployment guide
Also available: AI/LLM integrations via LangChain (agents, tools, MCP) if your project needs intelligent automation on top of the API layer.
I don't just write endpoints I build systems designed to handle real traffic and grow with your product. Message me before ordering so I can scope your project accurately and recommend the right package.
Get to know Sanaulla H
Sanaulla H
Software Engineer
- FromBangladesh
- Member sinceMay 2019
- Avg. response time1 hour
Languages
Bengali, English, Hindi, Urdu
I am a Full Stack Developer with 4 years of experience building scalable enterprise applications using Python. I have experience developing systems deployed across 500+ branches, integrating ERP and national identity services, and delivering robust technical solutions for clients.
FAQ
What's included in the Basic (API Starter) package?
The Basic package includes 4-5 REST API endpoints, Pydantic validation, PostgreSQL database setup, and auto-generated Swagger/OpenAPI documentation. Full source code and comments are provided. For authentication, background tasks, or Docker deployment, check the Standard or Premium tiers.
What's included in the Standard (Auth-Ready Backend) package?
Standard includes everything in Basic, plus 10-12 endpoints across multiple resources, JWT authentication with refresh tokens, role-based access control (RBAC), Alembic database migrations, Redis caching, and a basic pytest test suite. Delivered in 5 days with 3 revisions.
What's included in the Premium (Production-Ready System) package?
Premium includes everything in Standard, plus Celery background task processing, Redis rate limiting, Docker containerization, a CI/CD pipeline (GitHub Actions), full test coverage, a deployment guide, and 30 days of post-delivery support. Delivered in 7-10 days with 5 revisions.
Can you add AI/LLM features to my API?
Yes, I can integrate LangChain-based AI agents, tools, or LLM-powered features into your backend. This isn't included by default — message me with your requirements for a custom quote.
How many revisions are included?
Basic includes 2 revisions, Standard includes 3, and Premium includes 5 and 30-day post-delivery support window. Revisions cover adjustments to already-delivered work within the agreed scope; new features are handled as a scope change.
Do you provide the source code?
Yes, you receive full, well-commented source code for every package, along with a brief setup guide so you or your team can run and maintain the project independently.
What's the delivery timeline?
Basic: 3 days. Standard: 5 days. Premium: 7-10 days, depending on scope. Rush delivery may be available on request — message me before ordering to confirm timing for your project.
Can you deploy to AWS or DigitalOcean?
Yes, Docker-based deployment is included in the Premium package, and I can also deploy directly to your AWS, DigitalOcean, or other cloud server as part of that tier or as a custom add-on.
Do you sign NDAs?
Yes, I'm happy to sign an NDA before starting work if your project requires confidentiality. Just send it over in a message before you place your order.
What if I'm not satisfied with the delivery?
I include revisions with every package specifically to make sure the final result matches your requirements. I recommend messaging me with clear requirements upfront, and I'll keep you updated throughout so there are no surprises.
