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Raphael Moral Piazera

@raphaelmoralpiazera

Message

I build reliable Python backend systems for payments, integrations, and distributed workloads.

Brazil

Message

I've built and maintained payment and transaction services at Bee2Pay using Python, Django, AWS, PostgreSQL, DynamoDB, AWS Lambda, and RabbitMQ. I design asynchronous workflows, scalable APIs, secure integrations, and production-ready distributed processing systems.

Across Cadmus/BRK Ambiental, Stefanini/Goodyear, TrackTraceRX, and Alvarez & Marsal, I've improved backend performance, migrated Python codebases, optimized PostgreSQL queries, resolved production support issues, and delivered REST API integrations. I've also worked across mobile and frontend components with React Native, Angular, TypeScript, JavaScript, and Java when projects required it.

My work has reduced payment processing effort by 30%, API response times by 20%, maintenance time by two hours weekly, and hardware costs by approximately 90%. I bring hands-on ownership of implementation, debugging, testing, documentation, incident response, and secure API design.

Experience

Work history, roles, and key accomplishments

Software Engineer - Backend (Python/Django)

Bee2Pay

May 2025 - Sep 2026 (1 year 4 months)

Developed and maintained backend services for payments and transactions, integrating business rules and validations with internal and external systems. Designed and optimized asynchronous workflows using AWS Lambda and RabbitMQ, built scalable APIs with Django/DRF and PostgreSQL, and resolved production incidents.

Python Django Django REST Framework AWS Lambda RabbitMQ PostgreSQL DynamoDB IAM Secrets Manager JWT REST APIs Microservices Batch Processing Background Jobs API Gateway Cloudwatch SNS Docker CI CD

Software Engineer - Python/Django

Cadmus / BRK Ambiental

Jul 2024 - Apr 2025 (9 months)

Developed and maintained scalable Django/DRF backend, optimized complex PostgreSQL functions and queries, and reduced redundant API requests. Resolved the full open support-ticket queue and participated in troubleshooting and stabilization of production systems.

Python Django Django REST Framework PostgreSQL JavaScript Java HTML CSS SQL Optimization Docker

Software Engineer - Python/Django & Mobile Data

Stefanini / Goodyear

Sep 2023 - Mar 2024 (6 months)

Maintained and enhanced a Django backend, integrating systems and adapting application behavior to project requirements. Migrated a production codebase from Python 2.7 to Python 3.10 and developed a React Native/TypeScript mobile application for Android and iOS.

Python Django React React Native TypeScript Docker REST APIs

Software Engineer - Python/Flask

TrackTraceRX

Mar 2023 - Sep 2023 (6 months)

Improved service interoperability by building Flask APIs for Odoo XML and Salesforce/Sensedia integrations. Implemented OTP authentication using Twilio for SMS/email verification and contributed to Angular/JavaScript interfaces.

Python Flask Odoo Angular JavaScript Docker TypeScript HTML CSS Twilio REST APIs Build Integrations

Software Engineer - Python/Flask & Angular

Alvarez & Marsal

Jul 2022 - Mar 2023 (8 months)

Developed REST APIs with Flask, including error handling, object mapping and integrations with Salesforce and Sensedia APIs. Built Angular interfaces with TypeScript, dynamic form validation, API consumption, ngRx state management and Angular Material.

Python Flask MySQL Angular JavaScript TypeScript Docker Salesforce NgRX Angular Material

Junior Software Engineer - Python Native

Tekton Finance

Jan 2022 - Jul 2022 (6 months)

Developed web applications and REST APIs using Python, Flask, Django and Dash, with data processing using Pandas and backend integrations for Wix/Velo.

Python Flask Django Dash MySQL JavaScript Pandas GCP

Junior Software Engineer - Python

Eva Scientific

May 2020 - Aug 2021 (1 year 3 months)

Maintained and upgraded Python software used in hardware-integrated workflows and implemented new functionality for newly assigned equipment. Identified a hardware/software approach that reduced hardware costs by approximately 90%.

Python Linux Kivy