Hey! I'm

Lair Júnior (La-ear)

Nice seeing you here! :D

Software Engineer

Team Leader

former Google

former Thoughtworks

tl;dr

I'm a full stack engineer passionate for functional programming and XP practices. I've being building apps since 2008 and I'm always excited to create tools to facilitate people live better.

I have been maintaning a tournament management web application called Go Champs (PRs are welcome) and also I'm currently writting software at Checkr.

About me

Skills

  • JavaScript EXPERT
  • Elixir EXPERT
  • Ruby ADVANCED
  • Dart ADVANCED

Practices

  • Automated testing EXPERT
  • Clean code EXPERT
  • Reliability EXPERT

Bio

I’m a supportive and enthusiastic team player seeking a challenging technical career in software development.

I thrive in collaborative environments where I can work with others to find effective solutions, balancing quality and value in our deliverables. I've been shaped by thought leaders in the software engineering community, like Kent Beck and Uncle Bob, whose insights have significantly influenced my approach to software development.

I'm also passionate about sports, which inspired me to combine my skills and interests to create Go Champs. This platform was developed to help others like me organize tournaments, making it easier to manage and enjoy the competitive spirit of sports.

I'm currently working at Checkr, but you may also recognize some of my work from my previous roles at Google, ThoughtWorks, and Dell. These experiences have allowed me to contribute to diverse projects and bring a wide range of perspectives to my current work.

Projects

Go Champs!

open-external

Go Champs! is a dynamic tournament app designed to streamline the organization and management of sports events.

With a user-friendly interface and powerful features, the platform caters to a community of passionate sports enthusiasts.

Currently, Go Champs! enjoys steady engagement, attracting around 1.5k unique accesses per month, making it a go-to resource for players and organizers alike.

TypeScript
React
Elixir
LiveView
Nightwatch.js
Postgress

e-comvida

open-external

To support restaurants during the COVID-19 closures, we developed an app that connects local eateries with customers for takeout and delivery options.

The app offers a seamless experience for ordering, allowing users to browse menus, place orders, and pay online.

This initiative helped restaurants maintain business continuity and provided customers with access to their favorite meals safely and conveniently.

TypeScript
React
Firebase

Work

Lead Software Engineer

Oct 2022 - Present
TypeScript
Ruby
React

Checkr

  • Led the development of a configurable driving screening solution, unlocking customer deals and driving an opportunity for $1M in new revenue;

  • Led automation of the driving screening disputes process, reducing manual intervention by 30% of disputes and generating $1.63M in annual savings, while cutting dispute turnaround time from 5 days to under a minute;

  • Led the establishment of team guidelines and routines that improved delivery efficiency by 20% and increased test coverage from 60% to 75% using automated testing tools;

  • Coordinated cross-functional initiatives for new product development;

Sr. Soft Engineer

Feb 2019 - Oct 2022
TypeScript
Dart
AngularJs

Google - via EPAM

  • Redesigned the internal CMS tool's user interface to enhance user experience with intuitive navigation, responsive design, and interactive elements, reducing loading time from 3 minutes to a few seconds and significantly increasing user satisfaction and engagement;

  • Enhanced internal libraries to support Three.js extensions, enabling 3D rendering capabilities within the platform and accelerating the development of 3D features by 80%;

  • Decreased code complexity by replacing null API data manipulation with default value assignment, which reduced error handling code by 90% and improved maintainability;

  • Created custom form fields using Material Design components, enhancing user experience with improved styles and smooth animations, resulting in significantly higher user engagement;

Lead Software Engineer

Mar 2016 - Jan 2019
TypeScript
Ruby
React
NodeJs

ThoughtWorks

  • Led the migration of a real-time economic portal with 50M monthly pageviews, resulting in increased user engagement and improved performance metrics;

  • Designed a CMS that enables developers to easily create web components, enhancing page customization and streamlining the process for editors;

  • Contributed to building a high-quality software delivery pipeline that facilitated the deployment of software up to nine times a day;

  • Developed a higher-order component (HOC) to streamline the resolution of REST API dependencies for React components improving development speed;