Pamela Argentino de Oliveira Alves, Developer in São Paulo - State of São Paulo, Brazil
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Pamela Argentino de Oliveira Alves

Verified Expert  in Engineering

AWS Developer

Location
São Paulo - State of São Paulo, Brazil
Toptal Member Since
March 30, 2017

With more than six years of professional experience in software development and architecture, Pamela has delivered projects to major banks, financial institutions, insurance companies, retailers, and healthcare institutions, among other industry verticals. These projects include—but are not limited to—designing scalable, cost-effective, and highly available applications for public cloud environments.

Portfolio

Spin (Tier Mobility)
Ruby, Ruby on Rails (RoR), Stripe, Braintree API, Stripe API, PayPal API...
Rappi Engineering (via Toptal)
Chai, Mocha, Node.js, JavaScript, ESLint, MySQL, PostgreSQL, Apache Kafka...
Catch New York (via Toptal)
Node.js, JavaScript, GraphQL, Styled-components, Gatsby, Contentful, React...

Experience

Availability

Full-time

Preferred Environment

MacOS, RubyMine, PhpStorm, WebStorm

The most amazing...

...thing I've coded is a server that generates countdown GIFs.

Work Experience

Ruby on Rails Developer

2020 - PRESENT
Spin (Tier Mobility)
  • Implemented the partial refunds to individual trips, curbing a loss of revenue of up to $2 million a year.
  • Documented the new features, processes, and technical designs in Confluence.
  • Managed the field testing of certain features that did not allow regular testing with simulated vehicles.
Technologies: Ruby, Ruby on Rails (RoR), Stripe, Braintree API, Stripe API, PayPal API, BrainTree, PayPal, Back-end, CI/CD Pipelines, Full-stack, Architecture, Software Design, Technical Leadership, Test-driven Development (TDD), Code Review, API Integration, Ruby on Rails API, Stripe Payments

Back-end Developer

2020 - 2020
Rappi Engineering (via Toptal)
  • Developed new features that enabled the implementation of complex discount logic to product packs.
  • Covered all new and fixed code with unit and integration tests, enabling up to 97% reported coverage.
  • Delivered all assigned tasks on time, leading to two consecutive successful sprints.
Technologies: Chai, Mocha, Node.js, JavaScript, ESLint, MySQL, PostgreSQL, Apache Kafka, Sinon.JS, APIs, Microservices Architecture, Back-end, API Integration

Full-stack Developer

2019 - 2019
Catch New York (via Toptal)
  • Created new pages and features.
  • Added a localization-driven experience.
  • Implemented Redux with local storage persistence to save the user's location preferences.
  • Created UI extensions on Contentful to manage location-specific information.
  • Created Contentful environments and migrations to replicate content types across environments.
Technologies: Node.js, JavaScript, GraphQL, Styled-components, Gatsby, Contentful, React, APIs, Back-end, Mobile-first Design, Full-stack

Full-stack Developer

2019 - 2019
Last Rev LLC (via Toptal)
  • Added Sentry monitoring to the back end and the front end.
  • Created a standalone app that manages delivery scheduling with React, Firebase authentication, hosting, and cloud functions.
  • Added unit tests to server components using Jest.
  • Created new Handlebars helpers with unit tests for front-end components.
  • Created automated Contentful migrations with Node.js.
Technologies: Node.js, JavaScript, Firebase, Sentry, Jest, React, Bootstrap, jQuery, Handlebars, APIs, Back-end, Mobile-first Design, Full-stack, Test-driven Development (TDD), API Integration

AWS Developer

2019 - 2019
Litify (via Toptal)
  • Created an interface that allows secure and encrypted file uploads.
  • Added auto-scaled routines to automatically convert files whenever applicable using LibreOffice Headless, GhostScript, and ImageMagick.
  • Created an API with an added authorization layer that validates an access token against the client's user base.
  • Drafted API documentation and solution architecture diagrams.
  • Managed the cloud infrastructure and automation processes in AWS.
Technologies: Node.js, AWS Lambda, JavaScript, Amazon Web Services (AWS), Docker, Microservices, APIs, Microservices Architecture, Serverless, Back-end, AWS Fargate, Architecture, Software Design, Test-driven Development (TDD), API Integration, Salesforce

Solutions Architect

2017 - 2019
Cognizant Technology Solutions
  • Designed, architected, budgeted, implemented, and managed the underlying infrastructure for a public cloud-based open banking API on Amazon Web Services.
  • Assembled the presentation layer for a healthcare customer support app.
  • Refactored the AAA model on a custom CRM platform for a large retail bank.
  • Assisted in estimating project effort, deadlines, and gross architecture for RFPs alongside potential clients.
  • Deployed a company site following the Serverless Architecture model.
Technologies: Ruby, Karma, Mocha, Node.js, AWS Lambda, JavaScript, React, Linux, Docker, Microservices, PHP, Ruby on Rails (RoR), .NET Core, Python, Leadership, APIs, Amazon Web Services (AWS), Microservices Architecture, Serverless, Back-end, AWS Fargate, CI/CD Pipelines, Progressive Web Applications (PWA), Mobile-first Design, Full-stack, Architecture, Software Design, Technical Leadership, Test-driven Development (TDD), API Integration

Full-stack Developer

2016 - 2017
JP7 | Evolving Software
  • Created a scalable, highly available API for serving animated countdown GIFs that are used by the largest retail group in Brazil and is accessed by millions of people on a daily basis.
  • Wrote unit and functional tests for most of the existing and maintained applications and applied continuous integration.
  • Contributed to the development of React Native apps for the music and video streaming industry.
  • Provided tech support and participated in meetings with one of the company's largest clients.
  • Built a content management system that's fully written in JavaScript for a car dealership group.
Technologies: Ruby, Karma, Chai, Mocha, Node.js, AWS Lambda, JavaScript, Microservices, Laravel, PHP, Ruby on Rails (RoR), AngularJS, React, Python, APIs, Amazon Web Services (AWS), Serverless, Back-end, Progressive Web Applications (PWA), Mobile-first Design, Full-stack, Test-driven Development (TDD), API Integration, Ruby on Rails API

Development Lead

2015 - 2015
Shapeness
  • Migrated a COBOL-based ERP system that catered to car dealerships to PHP—eliminating the need for command line interfaces and constant need of SSH to access the system.
  • Led the migration team—planned and distributed tasks which resulted in a greater throughput than expected.
  • Created frameworks to adapt to the situation of a PHP system needing to consume a COBOL API and make the job easier for the team, therefore increasing throughput.
  • Instantiated development processes and procedures based on the Scrum Guide with 1 week long sprints and daily and weekly meetings.
  • Reported on a weekly basis to the immediate superior on task statuses, difficulties, and next week's planning.
Technologies: HTML, CSS, COBOL, PHP, Leadership, Back-end, Full-stack

Development Intern

2013 - 2015
Lanetworks
  • Maintained an ERP system for an industrial design company.
  • Created a task manager in PHP and manually set up a worker to do such tasks, without the help of a framework (e.g., Laravel).
  • Maintained AWS EC2 and RDS instances used to host the ERP.
  • Provided customer support through email, phone, and on-site training.
  • Exercised both regular commuting and telecommuting at times.
Technologies: CSS, PHP, Amazon Web Services (AWS), Back-end, Full-stack

Serverless Text-to-speech .NET Core Version

https://github.com/ultimagriever/serverless-text-to-speech-dotnetcore
A serverless text-to-speech solution with Lambdas written in .NET Core, implemented with DynamoDB Context, DynamoDB Streams, and provisions a CDN for the audio files.

Serverless Text-to-speech

https://github.com/ultimagriever/serverless-text-to-speech
A serverless app that converts text into lifelike speech by leveraging AWS services such as Lambda (back-end), API Gateway (routing), DynamoDB (persistence), SNS (pub/sub), Polly (text-to-speech) and S3 (static website hosting, audio file storage).

A link to a working example can be found below.
• http://serverlessttswebsite.s3-website-us-east-1.amazonaws.com/

Languages

Ruby, ECMAScript (ES6), JavaScript, ES7, GraphQL, SQL, PHP, COBOL, HTML, PHP 7, CSS, Python

Frameworks

Ruby on Rails (RoR), Laravel 5, AngularJS, Redux, React Native, Angular, Laravel, Bootstrap, Jest, .NET Core, Codeception

Libraries/APIs

React Redux, React, Node.js, Chai, Ruby on Rails API, Handlebars, jQuery, Sinon.JS, Stripe, Braintree API, Stripe API, PayPal API

Tools

AWS CloudFormation, AWS CLI, Amazon CloudFront CDN, Mocha, PhpStorm, NGINX, GitHub, Git, AWS AppSync, WebStorm, RubyMine, Sentry, Karma, Amazon Lex, AWS Fargate

Paradigms

Test-driven Development (TDD), Microservices, Serverless Architecture, Pair Programming, Scrum, Microservices Architecture, Continuous Delivery (CD), Continuous Integration (CI)

Platforms

AWS Lambda, Amazon Web Services (AWS), Docker, Firebase, MacOS, Linux, Contentful, Apache Kafka, Salesforce

Storage

Amazon DynamoDB, Amazon S3 (AWS S3), MySQL, MongoDB, SQL Server 2012, PostgreSQL

Other

APIs, Serverless, Back-end, Mobile-first Design, Full-stack, API Integration, Amazon API Gateway, AWS Polly, Amazon Route 53, Leadership, Progressive Web Applications (PWA), Architecture, Software Design, Technical Leadership, Code Review, Stripe Payments, Gatsby, Styled-components, ESLint, BrainTree, PayPal, CI/CD Pipelines

2016 - 2019

Bachelor's Degree in Information Systems

University of Sao Paulo | USP - Sao Paulo, Brazil

2011 - 2014

Bachelor of Technology in Database Technology

Fatec | Technological College of Sao Paulo - Sao Jose dos Campos, Sao Paulo, Brazil

2009 - 2010

Technical Degree in Web Systems

IFSP | Federal Institute of Science, Education and Technology of Sao Paulo - Caraguatatuba, Sao Paulo, Brazil

MARCH 2019 - MARCH 2022

AWS Certified Developer - Associate

Amazon Web Services

JUNE 2018 - JUNE 2021

AWS Certified SysOps Administrator - Associate

Amazon Web Services

FEBRUARY 2018 - FEBRUARY 2021

AWS Certified Solutions Architect - Associate

Amazon Web Services

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