João Eira

Frontend Engineer

That's me!

My name is João Eira, and I am a developer. Currently, I’m looking for a remote, Frontend job within a fast-moving company working with React. If my projects pique your interest, and you think I’d be a good fit for your company, I’d love to hear from you!

You can send me an e-mail from the message box below, or directly at


Tab Vault

Never lose your tabs, ever! Tab Vault is a Chrome extension I developed using React, coupled with Tailwind, for the front-end along with Google Firebase for the back-end. It solves a real-issue I had, which was that I accumulated many tabs over the day I wanted to save but had nowhere to do (OneTab, the most famous alternative, offers only local storage, which was unacceptable).

You can watch a demo where I go over the major features of Tab Vault here.

The Collector

The Collector was the first project I embarked on that wasn’t based on the familiar projects tutorials and courses have you do. The goal was to develop an application that allowed me to collect web resources I might want to save for later. For example, if I came upon interesting Javascript libraries I might want to check out, all I had to do was open the “Interesting Javascript Libraries” page, add a new entry, and fill in the details.

The backend was developed using NodeJS and Express. The frontend was a hodge-podge of vanilla Javascript that interacted with the DOM directly since at that point I was yet unfamiliar with React (which is why The Collector has been suspended for now, as it waits for a full re-write of its front-end code)

Work Experience

Research Assistant - Centre for Business and Economics Research (CeBER)

2018 - 2020

  • Came up with and executed original research while also supporting research by other members of the research group.
  • Performed data cleaning and feature generation from a multi‐million row database with detailed financial and accounting information of all Portuguese firms.
  • Wrote up code, utilizing both R and Stata, to implement cutting‐edge research procedures and apply them to the Portuguese context
  • Was the main author of an original research paper that was submitted to an important national conference on the topic
  • Alongside my research commitments, I was a PhD student in Economics at the same school, where I excelled.


Master's Degree in Economics - Faculdade de Economia da Universidade de Coimbra (FEUC)

Bachelor's Degree in Physics - Faculdade de Ciências e Tecnologia (FCT) da Universidade de Coimbra


Superpowered Self

Superpowered Self is where I channel my interest in how to increase cognitive fitness by publishing articles that range from how to use spaced repetition to the root causes of procrastination, and why it is a problem that can ever only be managed, not solved.

Want to work together? You can reach me through here!