Douglas Padilla

Backend developer · Odoo, Python & PostgreSQL

Odoo Developer · Appex Bolivia
POS & payment integrations
Santa Cruz, Bolivia · Remote
Open to remote backend & Odoo roles

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Experience

Odoo Developer · Appex Bolivia (Jul 2026 — Present)

I build Odoo 18 and 19 modules that connect Point of Sale and eCommerce with payment providers and card terminals.

Integrated card terminals into Odoo POS, so the cashier enters the amount and the charge goes straight to the terminal: Azul Ingenico Lane 7000 (Dominican Republic) over HTTP, and Red Enlace NEWPOS 9220 (Bolivia) via IoT Box over TCP.
Built BCP open-banking QR payments for sales orders, with mutual TLS, and integrated VPAY as a payment provider in the eCommerce checkout.
Covered the modules with 70+ automated tests, security groups and record rules, and ported one from Odoo 18 to 19.

Freelance Developer · Independent (2022 — 2023)

Management systems for small businesses.

2023 · Built management systems for two dental clinics with C# and SQL Server.

Projects

Azul card terminal for Odoo POS

The cashier picks the payment method and enters the amount; Odoo sends the charge to the Azul Ingenico Lane 7000 (Dominican Republic) and records the voucher. Connected through the terminal's local HTTP service: sales, installments, voids and refunds, voucher log, cashier and admin roles, 60+ automated tests.

Stack: Odoo, Python, JavaScript, PostgreSQL

Red Enlace terminal via IoT Box

The same POS-to-terminal flow for Bolivia: contactless sales and voids with the Red Enlace NEWPOS 9220 through the Odoo IoT Box. Python codec for the terminal's TCP protocol, tested without hardware. Odoo 18 and 19.

Stack: Odoo, Python, JavaScript

BCP QR payments for sales orders

Generates a BCP open-banking QR from a sales order, posts it to the order's chatter and checks the payment status. Calls signed with a mutual TLS client certificate; sandbox and live environments.

Stack: Odoo, Python, PostgreSQL

VPAY payment provider for eCommerce

Adds VPAY to the Odoo payment framework: at checkout it requests a one-time payment link and opens VPAY's page in a modal, without leaving the store.

Stack: Odoo, Python, JavaScript

Culty — Agrotech AI

Telegram assistant for farmers in Santa Cruz, built at the Build with AI 2026 hackathon. My part: the Telegram bot, the LLM assistant that answers using the farmer's profile and the forecast, and the climate prediction backend (satellite data, Vertex AI, Gemini) with its REST API.

Stack: Python, Django, PostgreSQL, Telegram, Gemini

Source code of Culty — Agrotech AI

Transit ML Service

ML microservice for a team transit platform. My part: three scikit-learn models (arrival time, congestion and anomaly detection), their Django REST API and asynchronous training with Celery and Redis.

Stack: Python, Django, scikit-learn, Celery, Redis

Source code of Transit ML Service

Dental Clinic SaaS

Appointments, patients and billing for dental clinics. Built end to end on my own: data model, backend and interface.

Stack: Next.js, TypeScript, Prisma, PostgreSQL

Expense Tracker

Personal finances with charts and reports.

Stack: React, TypeScript, Vite, Tailwind CSS

Live demo of Expense Tracker Source code of Expense Tracker

Impostor Game

Social deduction word game: find the impostor.