You will get a production-ready FastAPI backend with auth & database

Ethan T.Status: Offline
Ethan T. Ethan T.
5.0

Let a pro handle the details

Buy Custom Website Programming services from Ethan, priced and ready to go.
Ethan T.Status: Offline
Ethan T. Ethan T.
5.0

Let a pro handle the details

Buy Custom Website Programming services from Ethan, priced and ready to go.

Project details

I'll build you a production-ready REST API backend using FastAPI — the kind that handles real traffic, not just a demo.

What you get:
 • REST API with full CRUD operations
 • JWT authentication and role-based access
 • PostgreSQL or MySQL database schema, properly normalized
 • Auto-generated API documentation (Swagger/OpenAPI)
 • Docker containerization so it runs anywhere
 • Proper error handling and input validation
 • Basic test coverage

I have 15+ years of production engineering experience (Zalo Group, VNG Corp — internet-scale platforms), and I currently run my own multi-tenant SaaS built on this exact stack. I don't just make it work in a demo — I build systems that hold up under real usage, real edge cases, and real data.

Send me your requirements and I'll scope the exact deliverable before we start, so there are no surprises on either side.
Programming Languages
HTML & CSS, JavaScript, Python
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security
What's included
Service Tiers Starter
$250
Standard
$500
Advanced
$950
Delivery Time 5 days 7 days 10 days
Number of Revisions
123
Number of Pages
51020
Design Customization
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Content Upload
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Responsive Design
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Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$60 - $180
Additional Revision
+$30
Additional Page (+ 1 Day)
+$25
Design Customization (+ 1 Day)
+$40
Content Upload (+ 1 Day)
+$35

Frequently asked questions

5.0
4 reviews
100% Complete
1% Complete
(0)
1% Complete
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SS

Supri S.
5.00
Aug 13, 2015
Php zend 1.2 developer very good php coder

SS

Supri S.
4.85
Aug 8, 2015
Zend code clean up very good freelancer.
we will come back with more work.

SS

Supri S.
5.00
Aug 5, 2015
One php zend 1.2 page

PB

P B.
5.00
Aug 3, 2015
Load in data to form after State and Suburb selections Great work very happy
Ethan T.Status: Offline

About Ethan

Ethan T.Status: Offline
Senior Full-Stack Engineer | SaaS, Backend Architecture | Java/React
5.0  (4 reviews)
Ho Chi Minh City, Vietnam - 3:53 pm local time
I'm a senior software engineer with 15+ years building production systems for Zalo Group and VNG Corp — Vietnam's largest internet platforms, serving millions of users. I design and ship full-stack SaaS products end-to-end: database schema, backend APIs, frontend, and the DevOps/security layer that keeps them running safely in production.

What I bring to your project:

- Full-stack SaaS delivery — Java/Node.js/Python backends, React/Next.js frontends, PostgreSQL/MySQL/MongoDB/Redis data layers, built for multi-tenant and self-serve products from day one.

- AI/LLM engineering — build production AI systems end-to-end: document processing pipelines (OCR, chunking, embeddings), RAG search over vector databases (Qdrant), multi-model LLM gateways (LiteLLM) for cost/latency-aware routing, and async task orchestration (Celery) for long-running AI workflows.

- Security & access control — designed and built an internal system that scores and gates employee device/server access based on real-time risk signals (used company-wide at Zalo), plus envelope encryption (HashiCorp Vault, AES-256-GCM) for data-at-rest protection.

- Data & analytics platforms — built a Google-Analytics-style tracking system processing traffic from Zalo's entire product suite, plus a content-fingerprinting system for detecting copyrighted music uploads.

- DevOps & process — built internal tooling for CI/CD, staff performance tracking, and SDLC process automation used across Zalo's engineering org.

- Startup speed — currently building my own AI SaaS platform solo (FastAPI, Celery, Postgres, Qdrant, Next.js), so I move fast, ship MVPs, and think about cost/scale trade-offs like a founder, not just an engineer.

I care about clean architecture, clear communication, and shipping things that don't fall over at 2am. If you need someone who can own a feature or a whole product — from schema to deploy, from OCR pipeline to production AI agent — let's talk.

Steps for completing your project

After purchasing the project, send requirements so Ethan can start the project.

Delivery time starts when Ethan receives requirements from you.

Ethan works on your project following the steps below.

Revisions may occur after the delivery date.

Confirm requirements

requirements Review your requirements and confirm the data model and endpoints needed before development starts.

Set up foundation

Set up the project repo, database schema, and authentication.

Review the work, release payment, and leave feedback to Ethan.