I will build scalable restful api backend using fastapi and node js


About this gig
Need a secure, lightning-fast, and scalable engine to drive your application? I am a professional backend engineer specializing in building robust web server architectures, database structures, and high-performance APIs
I specialize in clean engineering, transforming raw business requirements into fast, reliable endpoints using industry-standard environments.
What I Offer:
- High-Performance Routing: Structured RESTful APIs built using FastAPI (Python) or Node.js (Express/JavaScript)
- Robust Database Integration: Expert data modelling and query optimization with PostgreSQL and SQLite
- Secure Systems: Implementation of secure JWT user authentication, role-based access control (RBAC), and middleware layers
- Third-Party Integrations: Seamless integration of external APIs (Stripe payments, Supabase, webhooks, and AI analytics models)
Every script and service features comprehensive code comments, strict Git version control tracking, and highly descriptive markdown documentation for frictionless future front-end integration.
Let's build an engine that handles load effortlessly. Shoot me a message with your system logic or a brief summary today to plan parameters before order
Get to know Mauricio O.
Full Stack Developer
- FromBrazil
- Member sinceJun 2022
- Avg. response time1 hour
Languages
English, Spanish, Portuguese
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FAQ
Do you provide database architecture setup or just code scripts?
I handle both. I model your relational schemas from scratch (designing tables, keys, and constraint properties), optimize connection performance, and provide the operational migration files alongside the core backend code.
Which frameworks do you prefer for building APIs?
I build high-performance systems primarily using FastAPI for asynchronous Python execution or Node.js for scalable, event-driven JavaScript applications, adapting to whatever fits your platform stack perfectly.
Can you help with final production server deployment?
Yes! While the basic logic package covers local testing structures, my comprehensive service includes configuring production instances, setting up secure environmental variables, and smoothly running systems in Linux/Debian host server environments.
