Codeminer42 - The software development boutique for your company

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

    Flash Sales e-commerce companion for (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.


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

  • Riot Games

    League of Legends Tournament Management Plataform Site - Joga Junto.

  • Consulta Remédios

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

  • Walljobs

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

  • 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.

  • A Lavadeira

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

  • iFood

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


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

  • Bidu

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

  • Revmob

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

  • Adaptativa - FUVEST

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

  • eduK

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

  • Blink Bid

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

  • Cidade Democrática

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

  • Leroy Merlin

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

  • 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.

  • Leroy Merlin
  • Présumé
  • InvestMind
  • Fundação Estudar
  • Trindade Investimentos
  • Olook
  • CotaBest
  • ESPN Brasil
  • Badabum
  • GoDaddy
  • iQuilibrio
  • Bio Ritmo
  • Stone
  • Lumera
  • Kitado
  • Banco Sofisa Direto
  • Adaptativa
  • Stars Premium
  • C6 Bank
  • Diagnostycos
  • Biva
  • GAS Tecnologia
  • Editora Saraiva
  • Data Folha
  • Dinda (
  • A Lavadeira
  • Nexaas
  • BlinkBid
  • Minuto Seguros
  • Callix
  • CoinWISE
  • Fullbar Digital
  • Moema Tem
  • fromAtoB
  • Consulta Remédios
  • GuiaBolso
  • Intensimed
  • Bidu
  • AppHere
  • Instituto Natura
  • eduK
  • Magazine Luiza
  • Riot Games Brasil
  • iFood
  • Officer Distribuidora
  • Umanni
  • Doletinha
  • UOL Pagseguro
  • AD Digital
  • ADTsys
  • Vote na Web
  • Tim
  • Bicos Online
  • Solvian
  • Revmob
  • NEO4J
  • Cálculo Jurídico
  • Westfield Labs
  • Guide Investimentos
  • Redpoint e.Ventures
  • Cyanna
  • Tener
  • Cidade Democrática
  • Portabilis
  • cubo
  • Walmart
  • Lumini
  • Mojo Lingo
  • Facebook
  • Medicinia
  • 99jobs
  • Amgen
  • Semaphore
  • Pipefy
  • Tile App
  • Folha de São Paulo
  • AgroSmart
  • Locaweb
  • Riot Games works together with Codeminer since 2015 in the development of projects of high technical complexity and uncertainty, focusing on discoveries and agile development. The technical quality of the deliveries presented by Codeminer has always been outstanding to us, given that the professionals assigned to our projects have always demonstrated excellent knowledge of the necessary technologies in such a way that they really added value to the projects.

    Luis Coimbra

    Tech Lead, Riot Games Brasil

  • 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

  • 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


"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.

  • Fabrício Albarnaz
  • Marcelo Alexandre
  • Alessandro Dias
    Comentador de PR
  • Elaine Mattos
  • Juarez Lustosa
  • Tiárli Oliveira
    "Tiárli" Brown
  • Rodrigo Boniatti
  • Lairton Lelis
    Morango do cerrado
  • Jonathan Bruno
  • Sérgio Murilo Varela
  • Kim Freitas
    Dev recém convertido
  • Wender Jean
  • Patricia Bastos
    git rebase -i HEAD~1 "rspec you must!"
  • Fladson Gomes
  • Gabriel Müller
    Dev Juvenil
  • Diego Thomaz
    Apreciador de cervejas
  • Diêggo Faustino
    Tto infinity and beyond
  • Júlio Cesar
    Junk food enthusiast
  • Vitor Talaia
    Formula One Fan
  • Felipe Flores
    eu sou o cara que transforma a vida em código
  • Ronaldo Araújo
  • André Pereira
  • Thiago Araújo
  • Victor Kunzler
  • Jonatas Rancan
    Motociclista e Developer
  • Elma Santos
  • Willane Paiva
    Dev apaixonada por front-end
  • Alceu Medeiros
  • Felipe Nolleto
    "expect( life ).toBe( awesome )"
  • Matheus Lobo
    Dev, professor, aluno e filósofo de bar
  • Andre Luiz
    Estag on Rails
  • Renan Bona
  • Yuri Delfino
  • Hélio Junior
    "Keep calm and I'm developer"
  • Carlos Lopes
    Señor Developer Campineiro
  • Thiago Alves Luiz
  • Rauan Assis
  • Adriano Costa
    El matador de bugs
  • Talysson Oliveira
    JavaScript Defense Attorney
  • Samuel Flores
    CDD - Coffee Driven Development
  • Maychell Oliveira
  • Leonardo Negreiros
    Dev e Surfista de marola
  • Stheffany Hadlich
    Dev absoluta
  • Matheus Azzi
    Filósofo de bar e troll
  • Cyrus Cavalcante
    Cyrus Black - Order of Phoenix
  • Abner Alves
  • Ivan Stumpf
    Developer, apreciador de cervejas e cosplayer do Thor
  • Marcle Rodrigues
  • Iago Dahlem
    "Developer and open source enthusiastic"
  • Alexandre Karpinski
    Dev 【=◈︿◈=】
  • Paulo Diovani
    “I’ä! I’ä! Cthulhu Fhtagn!”
  • Halan Pinheiro
    Ninja Padeiro (Louco)
  • Julia Furlani
    Web Developer
  • Tauan Tathiell
    "Trust me, I'm sleeping"
  • Guilherme Moreira
    Faz código e doces, encomende o seu
  • Bruno Castro
    // TODO : Write a cool description about me
  • Luan
    Web Developer, Ruby Lover and Dovahkiin
  • Rodrigo Abilheira
    Combinado não é caro
  • Rafael Martins
  • Bruno Amaral
    Performing Site Reliability Engineering
  • Moisés Rodrigues
    Dev e abridor de mares nas horas vagas
  • Vanessa Oliveira
    Assistente Administrativa
  • Gabriel Sobrinho
  • Will Soares
  • Gustavo Valvassori
    Developer ¯\_(ツ)_/¯
  • Joao Pedro
  • José Eduardo Alencar
    Developer, músico nas horas vagas e apreciador de vinho sempre que possível
  • Romulo Storel
  • Fabio Akita
    git push --force
  • Lucas Gois
  • Augusto Foletto
  • João Mangilli
  • Rodrigo Virgílio