Codeminer 42's logo

FREAKING AWESOME This is our Lastname
"firmitas, utilitas, venustas" Execution is Key

    Integrating with existing offshore teams (Rails/legacy/improvement)

  • Rubyconf Brasil

    Co-Founder Fabio Akita organizes the annual Rubyconf Brasil since 2008. This 9th edition in 2016 brings almost 90 speakers from all over the world and more than 1,000 developers

  • Walljobs

    Rescuing, finishing, releasing and maintaining this fledgling Job Board website


    Maintenance and Improvements over the legacy website (Java/Infrastructure/Support)

  • Riot Games CBLOL app

    iOS and Android apps built with React Native for players to check out the Brazilian LoL Championship. It's been installed hundreds of thousands of times already.

  • Cidade Democrática

    Project Rescue and revamping of the entire community site (Rails/legacy/upgrade and improvements)

  • eduK

    eLearning portal to replace the legacy Buzzero (Rails/greenfield project)

  • iFood

    Front-end development of the new iFood help system using React.js and Typescript

  • Adaptativa - FUVEST

    Joint campaign for FUVEST exam simulator (2014) (Rails/greenfield/infrastructure)

  • Consulta Remédios

    Maintenance of the current website and finishing the development of the new one. Taking care of the transition.

  • Bidu

    Maintenance and Improvement of existing startup product (Rails/maintenance)

  • Revmob

    App and Devops optimisation. Billing reduction of at least 50% (Rails, JRuby, Node.js)

  • A Lavadeira

    Zero friction laundry delivery system, the Netflix for laundry (Rails/greenfield project)

  • Blink Bid

    Website for creative professionals built with Ruby on Rails, deployed on Heroku. We helped iron out the structure and add new features.

  • Locaweb's New Payment Gateway

    Brand new highly scalable payment gateway built from scratch for Locaweb (Ruby/Goliath/infrastructure/greenfield project)

  • Riot Games

    League of Legends Tournament Management Site - Joga Junto

  • Westfield Labs

    One of the largest projects we managed, with several teams building Rails-based APIs for many of Westfield Mall's services, from product catalogue, to consumer management, to parking and more.

  • Dinda

    Flash Sales e-commerce companion for (Rails/greenfield project)

  • Vote na Web

    App and Infra optimisation. Both performance, stabilisation and outstanding bug fixes (Rails, AWS)

  • Leroy Merlin

    New Front-end development (example: Inspire-se section, responsive HTML5/CSS3/JS)


Every company needs a great set of software applications. We can provide you the best of breed in terms of productivity, code quality and product life cycle, user experience, efficient processes, team formation. Get to know some of our clients.

  • Mojo Lingo
  • CoinWISE
  • GoDaddy
  • UOL Pagseguro
  • BlinkBid
  • InvestMind
  • iFood
  • Amgen
  • Portabilis
  • Présumé
  • Pipefy
  • ESPN Brasil
  • Minuto Seguros
  • Badabum
  • Editora Saraiva
  • Bio Ritmo
  • NEO4J
  • GAS Tecnologia
  • Diagnostycos
  • Guide Investimentos
  • CotaBest
  • Callix
  • Moema Tem
  • Bicos Online
  • Redpoint e.Ventures
  • Leroy Merlin
  • Olook
  • ADTsys
  • Consulta Remédios
  • Bidu
  • Tim
  • Fundação Estudar
  • Cyanna
  • fromAtoB
  • Stars Premium
  • Officer Distribuidora
  • Umanni
  • Folha de São Paulo
  • Magazine Luiza
  • Westfield Labs
  • Lumini
  • Instituto Natura
  • Walmart
  • Doletinha
  • GuiaBolso
  • Facebook
  • AD Digital
  • Kitado
  • Locaweb
  • AgroSmart
  • AppHere
  • Stone
  • A Lavadeira
  • Riot Games Brasil
  • Solvian
  • Tile App
  • Lumera
  • Dinda (
  • iQuilibrio
  • C6 Bank
  • Adaptativa
  • eduK
  • Vote na Web
  • Banco Sofisa Direto
  • Cidade Democrática
  • Medicinia
  • 99jobs
  • Tener
  • Data Folha
  • cubo
  • Cálculo Jurídico
  • Intensimed
  • Semaphore
  • Revmob
  • Biva
  • Trindade Investimentos


"Genius is the gold in the mine; talent is the miner who works and brings it out."

Lady Blessington

Codeminer 42 is a Brazilian software boutique focused in delivering the best value for its customers. We started the operation at September of 2011 and so far we have expanded to 11 different cities in Brazil with the best professionals we can find.

Our speciality is Ruby on Rails web development and it's surrounding ecosystem - that includes cutting edge new technologies -, we are very experienced in delivering all kinds of tech products such as e-commerce, e-learning, social networks, content management systems, processes automation.

We have worked for small and big companies, we offer an assortment of services that goes from greenfield project development life cycle, legacy projects rescue, nearshore outsourcing, and so on.

If you want to have not only a great web application in production but also improve your software development processes and quality assurance, we can help.

What we do


You will have a predictable cost and an expected delivery date and we will manage the implementation using Agile best practices. The Scope is variable and we frequently reassess what's to be built, so you have the software you really need at the end.

Ideal for companies that don’t have an internal development team.

Team Augmentation

We identify the best team to help you achieve your goals.

Sometimes you already have an internal core team that needs to tackle more than they can implement until certain deadlines. The best thing to do is divide to conquer. Leave the core team doing the core software and add us to help on new features, extensions, maintenance, in order to meet the required deadlines. We will work within your Agile processes, together with your team.

Ideal for companies with an established internal team.

Technical Assessment

You have a big operation and want to make sure you're using the best practices.

This is specially useful to understand how your internal software development processes and outcomes are. The idea behind a technical assessment is to give you enough information so you understand it's life cycle, productivity levels, quality levels of the software being produced, and recommendation on how to improve.

Companies that maintain their own software.

Project Rescue

You want to bring health back to your product.

You already have source code implemented either already in production or not, but you're insecure if it's done in a safe, quality, and/or scalable way and you need to make sure you can keep adding new features and growing your userbase without unfortunate surprises. We can fix your project and bring it back to life.

Companies that are terminating with another 3rd party and need a reliable partnership.

Who we are

We are miners.

Deliver value in any project is a very hard process. As software developers we strive to deliver not only well written code, but code that delivers real value to each client.

It's not good enough to just be concerned with code for code's sake, but to deliver code that solves real problems and delivers real value. And this is the mission that we, as miners, will keep digging deeper to achieve.

  • Guilherme Moreira
    Faz código e doces, encomende o seu
  • Hayssa Costa
  • Paulo Diovani
    “I’ä! I’ä! Cthulhu Fhtagn!”
  • Lucas de Assis
    Developer, Committed to people
  • Felipe Nolleto
    "expect( life ).toBe( awesome )"
  • Alceu Medeiros
  • Rodrigo Boniatti
  • Patricia Bastos
    git rebase -i HEAD~1 "rspec you must!"
  • Juliana Negreiros
    Batmão nas horas vagas
  • Lairton Lelis
    Morango do cerrado
  • Júlio Cesar
    Junk food enthusiast
  • André Pereira
  • Gabriel Sobrinho
  • Jonathan Bruno
  • Cyrus Cavalcante
    Cyrus Black - Order of Phoenix
  • Wender Jean
  • João Mangilli
  • Fladson Gomes
  • Juarez Lustosa
  • Bruno Castanho
    O Cara do Kotlin
  • Diego Thomaz
    Apreciador de cervejas
  • Hélio Junior
    "Keep calm and I'm developer"
  • Ivan Stumpf
    Developer e apreciador de cervejas
  • Matheus Lima
  • Thiago Araújo
  • Jonatas Rancan
    Motociclista e Developer
  • Bruno Amaral
    Performing Site Reliability Engineering
  • Rodrigo Abilheira
    Combinado não é caro
  • Augusto Foletto
  • Fabio Akita
    git push --force
  • Rodrigo Virgílio
  • Carlos Lopes
    Señor Developer Campineiro
  • Tauan Tathiell
    "Trust me I'm the doctor"
  • Fabrício Albarnaz
  • Samuel Flores
    CDD - Coffee Driven Development
  • Tiárli Oliveira
    "Tiárli" Brown
  • Renan Bona
  • Lucas Gois
  • Vitor Talaia
    Formula One Fan
  • Diêggo Faustino
    Tto infinity and beyond
  • Iago Dahlem
    "Developer and open source enthusiastic"
  • Will Soares
  • Alessandro Dias
    Comentador de PR
  • Abner Alves
  • Adriano Costa
    El matador de bugs
  • Romulo Storel
  • Sérgio Murilo Varela
  • Elma Santos
  • Thiago Alves Luiz
  • Marcle Rodrigues
  • Marcelo Alexandre
  • Leonardo Negreiros
    Dev e Surfista de marola
  • Paulo Chaves
  • Gabriel Müller
  • Felipe Flores
  • Matheus Azzi
    Filósofo de bar e troll
  • Talysson Oliveira
    JavaScript Defense Attorney
  • Alexandre Karpinski
    Dev 【=◈︿◈=】
  • Vanessa Oliveira
    Assistente Administrativa
  • Moisés Rodrigues
    Dev e abridor de mares nas horas vagas
  • Ronaldo Araújo
  • Halan Pinheiro
    Ninja Padeiro (Louco)
  • Bruno Castro
    // TODO : Write a cool description about me
  • Rauan Assis
  • Maychell Oliveira