I will build custom python django backend api

A
arniecalderon
A
arniecalderon
Arnie

About this gig

Looking for a scalable backend, custom REST API, or a robust PostgreSQL database for your application? You need clean, secure, and production-ready code.

Welcome! I am a Software Engineer specializing in backend architecture using Python, Django, and PostgreSQL. Whether you are building a new application from scratch, scaling an existing system, or fixing complex backend bugs, I provide fast and reliable execution.

What I can do for you:

  • Custom RESTful API Development & Integration
  • Django Backend Architecture & Business Logic
  • PostgreSQL Database Design, Optimization & Migrations
  • Authentication & Authorization (JWT, OAuth, RBAC)
  • Third-Party API & Webhook Integrations
  • Bug Fixing, Query Optimization & Refactoring

My Backend Tech Stack:

  • Language: Python
  • Frameworks: Django, Django REST Framework (DRF)
  • Databases: PostgreSQL, Supabase, Redis
  • Tools & Deployment: Git, Docker, Postman, Vercel, VPS

Why work with me?

  • Clean Architecture: Maintainable code structured for high performance.
  • Security First: Protected endpoints, sanitized inputs, and secure data handling.
  • Clear Documentation: Optional Postman collections or Swagger API docs included.

Please send me a message with your project detail

Get to know Arnie

Arnie

Full Stack Engineer Multi Tenant SaaS and Business Web Apps

5.0(1)
  • FromPeru
  • Member sinceMay 2019
  • Avg. response time1 hour
  • Last delivery2 months
  • Languages

    English, Spanish
Full-Stack Software Engineer. I build multi-tenant SaaS and business web apps that reach production and stay there. Track record: • Creator and operator of Ventify — multi-tenant POS & inventory SaaS, live in 3 companies (top: 4 branches, 8,000+ products, ~600 sales/day, +97% sales). • 11 months as frontend dev for a Spanish B2B distributor, migrating their mobile sales app to web — team, code review, CI, tests. Stack: React, Next.js, TypeScript, Node.js, Django, PostgreSQL. Milestone-based delivery. Your repo and database in your accounts from day one. Native Spanish, technical English.

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