Codeminer42 - The software development boutique for your company

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

    Rescue, finishing up, release and maintenance of this fledgling Job Board website.

  • Cidade Democrática

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

  • Dinda

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

  • iFood

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

  • Consulta Remédios

    Maintenance of the current website, development of a new one, and handling of the transition between them.

  • Leroy Merlin

    New front-end development, implemented responsive behavior (example: Inspire-se section, responsive HTML5/CSS3/JS).

  • Blink Bid

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

  • Riot Games

    League of Legends Tournament Management Plataform Site - Joga Junto.

  • Revmob

    App and DevOps optimization. Infrastructure cost reduction of at least 50% (Rails, JRuby, Node.js).

  • 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.

  • Adaptativa - FUVEST

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


    Integration with existing offshore teams (Rails/legacy/improvement).

  • Bidu

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


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

  • eduK

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

  • Westfield Labs

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

  • A Lavadeira

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

  • Vote na Web

    App and Infrastructure optimization. Both performance, stabilization and outstanding bug fixes (Rails, AWS).


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

  • Vote na Web
  • iFood
  • Lumini
  • Magazine Luiza
  • Bio Ritmo
  • C6 Bank
  • Cálculo Jurídico
  • Cidade Democrática
  • AppHere
  • Intensimed
  • Cyanna
  • Fundação Estudar
  • Kitado
  • Amgen
  • Redpoint e.Ventures
  • Locaweb
  • GoDaddy
  • InvestMind
  • Guide Investimentos
  • Leroy Merlin
  • Minuto Seguros
  • 99jobs
  • Biva
  • CoinWISE
  • Umanni
  • Bicos Online
  • Moema Tem
  • AD Digital
  • Callix
  • UOL Pagseguro
  • cubo
  • Walmart
  • Fullbar Digital
  • A Lavadeira
  • Editora Saraiva
  • Semaphore
  • Solvian
  • Nexaas
  • Westfield Labs
  • Olook
  • iQuilibrio
  • Officer Distribuidora
  • ESPN Brasil
  • Badabum
  • Portabilis
  • Stars Premium
  • Instituto Natura
  • Facebook
  • CotaBest
  • Tim
  • Revmob
  • AgroSmart
  • Doletinha
  • Stone
  • Tener
  • Medicinia
  • GuiaBolso
  • Diagnostycos
  • Mojo Lingo
  • Folha de São Paulo
  • fromAtoB
  • Présumé
  • eduK
  • Tile App
  • BlinkBid
  • Pontte
  • ADTsys
  • Lumera
  • Riot Games Brasil
  • Pipefy
  • Data Folha
  • Bidu
  • NEO4J
  • Trindade Investimentos
  • Consulta Remédios
  • Adaptativa
  • Dinda (
  • Banco Sofisa Direto
  • GAS Tecnologia
  • Codeminer has supported Riot's Brazil office on locally developed projects like Joga Junto, Acampamento Yordle, Central de Aprendizado, and Minha performance since 2015. Codeminer's developers have always demonstrated outstanding technical knowledge and a high quality bar.

    Luis Coimbra

    Tech Lead, Riot Games Brasil

  • Working with Codeminer42 is being sure that the final product will turn out better than you expected. The level achieved by the whole team is such that you can identify its singular quality at any point of any project, from briefing to delivery. I couldn’t be more satisfied in having Codeminer close to us.

    Flávio Antunes

    Partner, StarsPremium

  • Codeminer has been an invaluable partner to GoDaddy for nearly 5 years, now. The engineers embedded within our product teams are highly skilled, pragmatic, insightful, and customer focused. We are able to view Codeminer as a genuine extension of our product teams, rather than an external service, and the results speak for themselves!

    Michael Tucker

    Sr. Director of Engineering, GoDaddy


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

Lady Blessington

Codeminer42 is a Brazilian software boutique focused on delivering the best value for its customers. We started operating in September 2011 and so far we have expanded to 12 different cities in Brazil with the best professionals and developers we can find.

Our specialty is Ruby on Rails web development and its surrounding ecosystem, which 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 and process automation.

We have worked for small and big companies, offering an assortment of services that range from greenfield project development life cycle to legacy project rescues, 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.

You might already have an internal core team that needs to tackle more than they can implement until certain deadlines. The best thing to do in this case is to divide and conquer. Leave the core team doing the core software and bring in some help from us on new features, extensions and 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 especially useful to understand how your internal software development processes and outcomes work. The idea behind a technical assessment is giving you enough information so you understand your life cycle, productivity levels and quality levels of the software being produced. With this, you will also get advice on how to improve.

Ideal for 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.

Ideal for companies that are terminating with another 3rd party and need a reliable partnership.

Who we are

We are miners.

Delivering value in every 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 accomplish.

  • Fabiano Furlan
    Developer e Produtor de cerveja
  • Alexandre Karpinski
    Dev 【=◈︿◈=】
  • José Eduardo Alencar
    Developer, músico nas horas vagas e apreciador de vinho sempre que possível
  • Neto Chaves
    Desenvolvedor Front-end, coffe ❤️
  • Douglas Lutz
  • Ivan Stumpf
    Developer, apreciador de cervejas e cosplayer do Thor
  • Juarez Lustosa
  • Erick Celio
  • Samuel Flores
    CDD - Coffee Driven Development
  • Thiago Araújo
  • Emerson Manabu Araki
    Developer No Stack
  • Philipe Costa
    Code, RPG and Pizza lover
  • Rodrigo Boniatti
  • Carlos Lopes
    Señor Developer Campineiro
  • Diêggo Faustino
    Tto infinity and beyond
  • Yuri Delfino
  • Levi Lugato
    while true; do echo “Sysadmin writing code !” ; done
  • Lairton Lelis
    Morango do cerrado
  • Fabrício Albarnaz
  • Guilherme Moreira
    Faz código e doces, encomende o seu
  • Rafael Martins
  • Bruno Amaral
    Performing Site Reliability Engineering
  • Nassim Moussa
    Dev importado
  • Gustavo Valvassori
    Developer ¯\_(ツ)_/¯
  • Davi Tapajós
  • Diego Thomaz
    Apreciador de cervejas
  • Moacir Guedes
    Dev 🐿️
  • Fabio Akita
    git push --force
  • Felipe Nolleto
    "expect( life ).toBe( awesome )"
  • Willane Paiva
    Dev apaixonada por front-end
  • Cassiano Blonski
    Dev Narguileiro
  • Jonatas Rancan
    Motociclista e Developer
  • Frederico Hasegawa
    Típico nerd que se encontrou na programação
  • Luciano Dantas
    Developer, Frontend Wizard e interpretador de sonhos
  • Victor Kunzler
  • Rodrigo Abilheira
    Combinado não é caro
  • Cyrus Cavalcante
    Cyrus Black - Order of Phoenix
  • Patricia Bastos
    git rebase -i HEAD~1 "rspec you must!"
  • Augusto Foletto
  • Thayrone Santos
    boe do React
  • Adriano Costa
    El matador de bugs
  • Larissa Moura
    GRL PWR defender
  • Abner Alves
  • João Mangilli
  • Gabriel Müller
    Dev Platinado
  • Paulo Diovani
    “I’ä! I’ä! Cthulhu Fhtagn!”
  • Wender Jean
  • Rauan Assis
  • Maychell Oliveira
  • Hélio Junior
    "Keep calm and I'm developer"
  • Stheffany Hadlich
    Dev absoluta
  • Gabriel Sobrinho
  • André Pereira
  • Kim Freitas
    Dev recém convertido
  • Will Soares
  • Marcle Rodrigues
  • Leonardo Negreiros
    Dev e Surfista de marola
  • Eduardo Cerutti
    Do. Or do not. There is no try
  • Vicente Santos
  • Joao Pedro
  • Maurício Pereira
  • Lucas Hiago
    Code and beers
  • Ronaldo Araújo
  • Alessandro Dias
    Comentador de PR
  • Maykon Menezes
    Dev, Músico e Especialista em reclamar do calor
  • Iago Dahlem
    "Developer and open source enthusiastic"
  • Eduardo Moreira
    minino novo
  • Talysson Oliveira
    JavaScript Defense Attorney
  • Lucas Gois
  • Gustavo Melo
  • Luan
    Web Developer, Ruby Lover and Dovahkiin
  • Marcelo Alexandre
  • Renan Bona
  • Sérgio Murilo Varela
  • Halan Pinheiro
    Ninja Padeiro (Louco)
  • Vanessa Oliveira
    Assistente Administrativa
  • Julia Furlani
    Web Developer
  • Gabriel Baldão
  • Matheus Azzi
    Filósofo de bar e troll
  • Felipe Flores
    eu sou o cara que transforma a vida em código
  • Renata Marques
    $ git clone ssh://cool-description.git
  • Romulo Storel
  • Bruno Castro
    // TODO : Write a cool description about me