Hello,
My name is Erica
Plant-powered staff frontend engineer with 19+ years of experience in building performant, accessible web applications while listening to vaporwave music
Erica Prieto

With 19 years of professional experience, I specialize in building performant and accessible web applications. I've led frontend teams, architected libraries, and delivered production systems serving millions of users.

My core expertise is TypeScript and React, which I've been working with since it was open sourced in 2013. I love solving complex UI challenges, integrating different tools that weren't meant to work together, and making the web a bit better for everyone each day.

If you want to know more about me, you can check my resumé below or see some of my work

Resumé
A brief history of what I've been up to
Click here to download the full version on PDF
My Stack

Core Stack

JavaScript TypeScript HTML CSS React.js Tanstack Query material ui Docker GitHub Actions

Interested In

Remix Astro Vue.js Tailwind CSS Tauri Solid.js WebAssembly Three.js

Previous experience with

Angular.js Next.js Redux Cordova Ionic redux-saga Immutable.js Electron

Freelancing Work

I also work as a freelancer and I've worked with many clients over the years. You can see some of these projects here.

Get in touch if you have a project in mind — let's build something together.

Job History

Telnyx

Staff Software Engineer | since jul/2023

Leading frontend architecture for customer-facing portals. Mentoring engineers and delivering scalable React applications for enterprise clients.

TypeScript JavaScript React.js CSS Contentful Next.js

Tweak.com

Front-End Team Lead and Senior Developer | from apr/2020 to june/2023

Led a frontend team building a real-time, browser-based design editor. Established code standards and testing strategies.

TypeScript JavaScript React.js Fabric.js CSS Jest

Klarna

Senior JavaScript Developer | from dec/2018 to dec/2019

Built high-traffic payment checkout flows handling millions of transactions. Implemented end-to-end testing for reliability across markets.

TypeScript JavaScript Node.js React.js CSS Jenkins Docker TestCafe WebdriverIO

HE:labs & Ignus Digital

Senior JavaScript Developer | from may/2017 to dec/2018

Delivered full-stack JavaScript solutions for diverse clients including web apps, mobile apps with React Native, and GraphQL APIs. Worked across the entire product lifecycle from architecture to deployment.

JavaScript Node.js Next.js React.js React Native Redux Apollo Ionic CSS SASS Cordova GraphQL PostgreSQL CircleCI Heroku

EcoStage

Senior JavaScript Developer | from nov/2016 to apr/2017

Built frontend applications for Brazil's leading socio-environmental consulting company. Developed complex data visualization dashboards using React with Redux and redux-saga for state management.

JavaScript React.js Redux redux-saga Immutable.js CSS SASS

Interativa Events

Senior Web Developer | from may/2015 to may/2016

Acted as head developer, planning and coding most of the company's projects. Every week, we created apps for our customers' events, like survey apps, social media totems, RFID systems and games.

JavaScript React.js Redux CSS LESS Cordova Electron Node.js MySQL Digital Ocean

Havik/Kenoby

Senior Front-End Developer | from nov/2013 to fev/2015

Developed Kenoby, an applicant tracking system that improved recruiter efficiency and precision at one of São Paulo's largest HR consulting firms.

JavaScript jQuery Backbone Angular.js React.js CSS LESS Codeship CI Digital Ocean

ListenX

Front-End Developer | from jan/2013 to out/2013

Designed and developed frontend applications for internal and external products, with a focus on usability and user experience.

JavaScript jQuery Backbone CSS LESS

Admotion

Web Developer | from apr/2009 to nov/2012

Built internal and external projects using ActionScript, Flash Media Server, .NET, and PHP for a leading ad-tech company.

JavaScript jQuery CSS Flash C# PHP MySQL

RTI Consulting

Web Developer | from jan/2004 to fev/2006

Developed e-commerce sites, websites, and custom CMS solutions from conception to delivery.

JavaScript jQuery CSS PHP MySQL
Freelancing Work

I also work as a freelancer and I've worked with many clients over the years. You can see some of these projects here.

Get in touch if you have a project in mind — let's build something together.

Get in touch!