
Samuel
From Brazil (UTC-3)
6 years of commercial experience
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Samuel – .NET, .NET Core, C#
Samuel is a competent .NET developer with 6 years of professional experience. He is skilled in API design focused on scalability, performance, and maintainability. He also has experience with front-end technologies like Angular and React. Samuel leverages AI tools daily to optimize code efficiency and streamline development. With a lifelong learning mindset, he constantly enhances his skills.
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April 16thDirect hire
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Let’s get started today!Experience Highlights
Back-end Developer
The payments microservices of the McDonald's global mobile app to manage customer cards, payment methods, and sales transactions with PSPs and integrate with fraud service providers (FSPs).
- Designed and implemented new payment methods integration;
- Created new queues and consumers for SQL data migration in AWS SQS;
- Updated a version of payment provider integration;
- Worked on troubleshooting and providing hotfixes for production issues;
- Developed unit tests with XUnit and end-to-end integration tests using Cypress;
- Refactored code for SonarQube compliance;
- Provided support for production deployments by monitoring prod transactions, logs, and performance;
- Collaborated with cross-functional teams.
Back-end Developer
It's a SaaS for digital hiring in Brazil that collects employee data and documents via OCR and integrates them with popular payroll systems.
- Optimized the back end by refactoring code and adding caching to boost response time;
- Designed and provided technical analysis for new features implementation;
- Incorporated payroll system integrations such as SAP and TOTVS;
- Delivered bug fixes and feature enhancements for the Angular front end.
Full-stack Developer
It's a medical certificate emission system to be used by medical centers across Espírito Santo state in Brazil.
- Built the back end and front end of the medical certificate system from scratch;
- Delivered bug fixes for a legacy system built with WebForms and jQuery;
- Created unit tests to ensure code reliability;
- Handled project deployment using Microsoft Azure.
Back-end Developer
It's the company responsible for developing and maintaining city hall's public systems. The projects included user authentication and pet adoption systems.
- Added new features to the authentication system used by all city hall services;
- Delivered bug fixes and new features for a public pet adoption system;
- Set up a data replication system between databases using RabbitMQ queues.
Full-stack Developer
It's a Brazilian bank offering financial solutions for customers and local companies in Paraná and Rio Grande do Sul states.
- Improved an ASP.NET application for managing customer credit cards with bug fixes and new features;
- Contributed to migrating a legacy application to .NET Core;
- Built a full-stack project from scratch with React and .NET Core;
- Integrated Google Maps API and PostgreSQL geolocation queries to find nearby stores for customers;
- Created unit tests using XUnit and NUnit frameworks.