I will build python fastapi rest api backend for your web app with postgresql and redis

A
adnanmdml
A
adnanmdml
Adnan
build python fastapi rest api backend for your web app with postgresql and redis
build python fastapi rest api backend for your web app with postgresql and redis
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build python fastapi rest api backend for your web app with postgresql and redisbuild python fastapi rest api backend for your web app with postgresql and redisbuild python fastapi rest api backend for your web app with postgresql and redis

About this gig

I build production-focused **FastAPI backend applications and APIs** for web apps, internal tools, and data-driven systems.


**Core Services:**


* **API Development:** CRUD APIs, Pydantic validation, async request handling, and clean backend architecture.

* **Database Integration:** PostgreSQL, SQLAlchemy, SQLModel, Tortoise ORM, asyncpg, transactions, and migrations.

* **Redis & Performance:** Caching, TTLs, rate limiting, distributed locks, idempotency, and pub/sub.

* **Background Jobs:** ARQ and Taskiq with retries, scheduling, job tracking, and async processing.

* **Authorization:** RBAC/ABAC, ownership checks, and route-level access control.

* **Large Data APIs:** Cursor pagination, CSV/NDJSON streaming, and bounded-memory processing.


**Stack:** FastAPI, Python, Pydantic, PostgreSQL, Redis, HTTPX, Docker, Prometheus, Grafana, Loguru, Sentry.


My portfolio also includes FastAPI workflows tested with a **1M-row dataset**.


**Message me before ordering** to discuss your API scope, database, integrations, and deliverables.


https://adnanmd.pythonanywhere.com/

  • Programming language

    • Python

  • Expertise

    • Algorithms & Data structures
    • Debugging
    • Performance
    • Design
    • Databases

  • Frontend framework

    • Flutter
    • Next.js
    • React.js
    • Tailwind CSS
    • Streamlit

  • Backend framework

    • Django
    • FastAPI
    • Flask
    • Node.js
    • Spring Boot

  • AI & low/no code builders

    • Claude
    • Other

Get to know Adnan

Adnan

Building AI systems and the Python backends that serve them

  • FromBangladesh
  • Member sinceApr 2025

  • Languages

    English
Hi, I'm Adnan. I build AI systems and the Python backends that serve them. My work covers four areas: agentic RAG and multi-agent systems that cite their sources; AI chat widgets for your website; Python FastAPIs with a real database and tests; and third-party API integrations that handle webhooks and retries. I work in Python throughout, with FastAPI, PostgreSQL, Redis, LangGraph, and vector databases. Thank you for reading. I would be glad to hear about your project and advise on the most suitable approach. Portfolio: adnanmd[dot]pythonanywhere[dot]com

My Portfolio

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