PrintI'm a software engineer with 16+ years of experience and a deep passion for continuous learning, clean code, and delivering high-quality user experiences. For the past 8+ years, I've specialized in Ruby and Rails, with a strong focus on building scalable APIs and applying best practices like refactoring and TDD.
Over the past two years, I’ve been expanding my toolkit with React, bringing modern frontend development into my skill set.
I enjoy mentoring others, fostering a collaborative environment, and continuously improving codebases.
Specialties: Ruby, Rails, React, TDD, APIs, RSpec, Refactoring, Mentoring
Research/Interest Areas: TypeScript, Distributed Systems, DevOps
As an independent contractor, I've had the privilege of contributing to a diverse range of companies across various industries, gaining valuable experience and adapting to different business challenges.
I've primarily applied my expertise in Ruby, Rails, and software engineering to deliver robust solutions, while recently enhancing my skill set by working extensively with React to create dynamic, user-friendly applications.
Firstleaf backend platform
SaaS providing tools to manage educational programs and handle communication between students, instructors, faculties and bookstores.
Leading tenant coordination tracking software.
SaaS that provides a menu pricing system for contractors (HVAC, plumbing, electrical services) with features like custom pricing, service contracts, payment plans, warranties, etc. Platform widely used in the USA.
An application allowing parents to create, organize and send invites for birthday events for their kids and allows guests to donate to the event.
Parents can use part of the donated money to buy a special gift to the kid and donate another part to different charity institutions.
A system where the payments of the loan are based on the profits achieved by the borrowers on their businesses.
I was responsible to develop the integration with Amazon Marketplace Web Services API (MWS).
The application fetches data from MWS to generate different reports and metrics and support decision making about loans.
SaaS helping professionals to build and publish their resumes. It provides a WYSIWYG resume builder and different pre-defined templates.
A portal to publish tech events, sponsorships and speakers.
Admin and public area, carousel with pictures taken during events, agenda for upcoming events.
A display management platform using Go Microservices and VueJS single page applications.
A hosted checkout retail platform that enables merchants to accept credit card payments.
It consists on the following subsystems: Merchant App, Admin App and Node JS Microservices.
Via the multi-merchant functionality it allows merchants to share the same pinpad while keeping their payments safe and isolated.
I worked on a team of 5 developers. I was mainly responsible to implement changes in the Rails apps to meet the requirements for the new version using the microservices arquiteture.
We finished this version within the expected deadline and deployed it successfully to production.
Payeezy is a suite of tools that allows merchants to receive and manage payments worldwide.
It consists on the following subsystems: Real Time Payment Manager, Provisioning Admin Tool and Payment API.
A Rails API providing consolidated marketing data to an Angular app and a WordPress website.
One of the most important aspects of the API is to collect and aggregate data and stats.
These stats are used to generate several different reports and give feedback to marketing professionals, publishers and sponsors.
Angular JS project to provide the user a beautiful UI to interact with aggregated marketing data and generate several reports.
The platform consists on the following subsystems:
▪ Adm Promo: administrative tools to manage promotions
▪ Pricing Web: administrative tools to manage pricing
▪ Promotion Integration: integration tool to translate a promotion (created on Adm Promo) to a Drools file to be evaluated by a rule engine
▪ Promoted Freight: microservice providing freight information to the frontend apps for a given product or checkout
▪ Promoted Price: an evolution of the AdmPromo-PromotionIntegration architecture. It process the rules generated by the Rule Manager Service and provides the frontend apps a list of applicable promotions based on a business context
▪ Installment Service: microservice providing to the frontend apps a list of applicable installments for a product or checkout
▪ Coupon Service: microservice generating and processing coupons to provide the final user discounts when buying products on the website
▪ Extended Warranty: monolithic application providing extended warranty rules to be used by the frontend apps
This project enables the user to login in the e-commerce sites Americanas, Shoptime and Submarino.
It provides a timeline of orders and registration information. It also offers a self-service area that allows the user to perform cancellation of purchases, product returns, payment retries, etc.
Besides the main project I also contributed to the following sub projects:
▪ Partner Integration: integration middleware for suppliers. It consumes several SOAP webservices
▪ Vale Presente Físico: an application that generates vouchers. It integrates with a zebra printer
A desktop application to manage hotel booking.
A web application providing a survey and analytics reports with consolidated data and metrics.
A desktop application to manage a bookstore.
An application written with Visual Basic 6 to manage small pubs and restaurants.
A simple inventory management application written with Visual Basic 6 and used in the IT department.
A very simple HR application written with Visual Basic 6 to manage career info in the security department.
Universidade Veiga de Almeida-BSc Computer Science,2002 - 2005
