Codeminer 42's logo

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

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

  • Locaweb's New Payment Gateway

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

  • Vote na Web

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


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

  • Walljobs

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

  • A Lavadeira

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

  • 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.

  • Cidade Democrática

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

  • 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


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

  • Revmob

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

  • Blink Bid

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

  • Bidu

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

  • Consulta Remédios

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

  • Adaptativa - FUVEST

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

  • 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.

  • eduK

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

  • Riot Games

    League of Legends Tournament Management Site - Joga Junto

  • 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


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.

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


"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.

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

Visit us

São Paulo

+55 11 3729 1422
Av. Roque Petroni Junior, 850 conj 52 e 53 - Torre Bacaetava - Jardim das Acácias
São Paulo - SP - Brasil - CEP 04707-000


R. Paulo César Fidélis, 39 - Sala 610 - Lot. Res. Vila Bella
Campinas - SP - Brasil - CEP 13087-727

Novo Hamburgo

Av. Pedro Adams Filho, 5573 - Ed. Fin-Hab, Sala 1006 - Centro
Novo Hamburgo - RS - Brasil - CEP 93510-135


Av. Amintas Barros, 3700 - Corporate Tower Center, Salas 1807/1808/1809B - Lagoa Nova
Natal - RN - Brasil - CEP 59075-250


Av. Izoraida Marques Peres, 256 - Ed. Av. Paulista, Sala 53 - Parque Campolim
Sorocaba - SP - Brasil - CEP 18048-110


Av. Jockey Clube, 299 - Ed. Euro Business, Sala 1409 - Joquei Clube
Teresina - PI - Brasil - CEP 64049-240


Av. São Francisco de Assis, 647 - Centro Comercial Mariah, Sala 09 - Jundiaí
Anápolis - GO - Brasil - CEP 75110-810


Av. T-10, 208 - Ed. New Times Square, Sala 802 - Setor Bueno
Goiânia - GO - Brasil - CEP 74223-060


Rua José Pedrosa Machado, 48 - Sala 4 - Central Park
Batatais - SP - Brasil - CEP 14307-106


Av. Vereador Rubéns Siqueira Ribas, 3171 - Valley Coworking - Santa Cruz
Guarapuava - PR - Brasil - CEP 85015-080

Santa Maria

Rua Alberto Pasqualini, 121, sala 604, Centro
Santa Maria - RS - Brasil - CEP 97015-010