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

AWS Developer in São Paulo - State of São Paulo, Brazil

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.
Pamela is now available for hire




São Paulo - State of São Paulo, Brazil



Preferred Environment

MacOS, RubyMine, PhpStorm, WebStorm

The most amazing...

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


  • 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 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Development Lead

    2015 - 2015
    • 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
  • Development Intern

    2013 - 2015
    • 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)


  • Serverless Text-to-speech .NET Core Version

    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

    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.


  • 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, 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
  • Platforms

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

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

    APIs, Serverless, Amazon API Gateway, AWS Polly, Amazon Route 53, Leadership, Gatsby, Styled-components, ESLint, BrainTree, PayPal
  • Paradigms

    Microservices, Serverless Architecture, Pair Programming, Scrum, Microservices Architecture, Continuous Delivery (CD), Continuous Integration (CI)


  • Bachelor's Degree in Information Systems
    2016 - 2019
    University of Sao Paulo | USP - Sao Paulo, Brazil
  • Bachelor of Technology in Database Technology
    2011 - 2014
    Fatec | Technological College of Sao Paulo - Sao Jose dos Campos, Sao Paulo, Brazil
  • Technical Degree in Web Systems
    2009 - 2010
    IFSP | Federal Institute of Science, Education and Technology of Sao Paulo - Caraguatatuba, Sao Paulo, Brazil


  • AWS Certified Developer - Associate
    MARCH 2019 - MARCH 2022
    Amazon Web Services
  • AWS Certified SysOps Administrator - Associate
    JUNE 2018 - JUNE 2021
    Amazon Web Services
  • AWS Certified Solutions Architect - Associate
    FEBRUARY 2018 - FEBRUARY 2021
    Amazon Web Services

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