software development

Is a boutique
Ruby on Rails web development


Fuzzrocket is a social network focused on musicians, composers, singers and dancers, where they can now get unprecedented exposure to the fans. The platform can present their music, playing original songs find their perfect musical partners and show the world what they can do in live performances, plus all the basic features of a social network. This platform was developed with Ruby on Rails 4.


Eaposta is a web platform to manage online lotteries. On the platform you can play different state games like "Primitive", "Predictor", "Eurojackpot", etc .. It also has an online payment gateway with credit card . This platform was developed with Ruby on Rails 3. In addition, a widget can be placed on any other web portals to provide online lottery services effortlessly by the third party was built.


RettaLibros is an online platform for a library that consists of two parts, one administrative and the other online sales. Within the management company, it keeps track of all sales, purchases, stock, orders, customers, profiles, offers, contracts, etc.. Within the sale of materials, end users can access book catalogs, check your stock, see relevant material information, place orders, pay online, create and save lists materials to share with other users, etc.. This platform was developed Ruby on Rails 3.


Lock IT is a web platform created to meet the needs of tourists passing through. A variety of offers specially developed for this type of tourist who is in a place for a few hours or for the day. Through the site you can buy tourist services deals around points Lock IT, including electronic lockers service with web reservation to tour and see different places without extra weight and without worries!


WomanPlus is a professional networking site for entrepreneurial women. Women who are signed up could manage events, send notifications, create groups of interest and specially share her ideas and project to get advices about them. We used Ruby on Rails, jQuery, ThinkingSphinx, Devise, Cucumber, Rspec, CanCan and PaperClip.


This is a portal for a government system which manages Citizen Applications. This is not only a portal but a real rendering expert. This system uses templates generated by FCDesigner and documents data to render the application form with the data obtained from REST Services and Documental Databases. This was developed with Ruby on Rails, jQuery, Formtastic, PaperClip, Savon and CouchRestModel.


The customer needed a complete distributed system to manage different Medical Clinics from everywhere. At first it was a small web app that could manage patients, treatments and schedule appointments. While the customer needs were growing, it became a complete medical control system. It can handles Medical History, Billing, many kind of reports, Graphic Human Model with realized treatments, and more. It was developed with Ruby on Rails, jQuery, RufusScheduler, Capistrano and Mysql.

Management of radiological practice

Management of radiological practice has all the clinical management allowing to store the information and give patients their exam results in digital form. The big challenge of this was replace a very old system which was used for this purpose. The usability was a must to maintain the culture of the organization. Was developed with Ruby on Rails and the gems Devise, CanCan, ThinkingSphinx, WickedPdf and SpreadSheet.


E-Suscript is a web app that manages subscriptions to newspapers or magazines and handles their distribution to customers. The main goal of this system is to be able to control and monitor the delivery process to valid subscriptors. To accomplish this, we had to take control of billing and present delivery reports. This was developed with Ruby on Rails, jQuery and ActiveScaffold.


TLI is a web application system to manage the entire workflow since a client make a purchase until the package is delivered. The main goal is to keep continuous track of the package (where it is, in which city, truck, container, etc.) and inform it to the customer. That's why we had to handle trip bookings, services, drivers, carriers, shipping, companies and more. This was implemented focusing on the usability and maintainability of the system. It was develop with Ruby on Rails, jQuery, Formtastic, Cucumber and Rspec.


FCDesigner is a very complex platform to create Application Forms using templates from reusable parts of it. This lets create a lot of Applications Forms reusing small parts with its own structure, texts and validations. This platform let you create really complex form that you can't imagine. It's an excellent example about how to use ruby meta programming. We used Ruby on Rails, jQuery, MetaSearch and specially lot of thinking :)


We needed to develop a Module to manage accounts of millions of people. This accounts not only permit or not access to a distributed system but its has the access to an external process management and its configuration. It is based on REST Services. This is the core of accessibility for a government applications system. This was able to develop using Ruby on Rails, Devise, CanCan, jQuery, CouchDb and OmniAuth.

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About us

Vairix Software Development is a boutique Ruby on Rails web development.

Our primary strength is our great Team.
Excellent profesionals and above all great people.

It's awesome what can we do together.

Our team

Alvaro Muhlethaler

He specializes in agile methodologies and technology development on Ruby on Rails.

Scrum Master certified and passionate about Ruby on Rails for almost 6 years. Has a creative mind that makes him a visionary entrepreneur, full of new business ideas and innovative projects.

He enjoys traveling and is convinced that doing some sport every day is necessary to achieve a balance in other aspects of life.

Expertise: Scrum, Ruby, Rails, RubyMotion, Jquery, CSS, HTML

Alvaro CTO & Co-Founder Alias: amuhleths
Gastón Arbeletche

Specializes in business and management, is enthusiastic, always searching new business opportunities and is certified Scrum Master.

Has 7 years of experience in software development through national and international companies.

His entrepreneurial spirit makes him an entrepreneur focused not only on commercial activities but creating new market opportunities, mixing his technological talent with business ideas.

He is passionate about going fishing, enjoying the moment with friends and acquaintances. In his spare time likes to investigate about finance.

Expertise: Scrum, Ruby on Rails, Jquery, Javascript, CSS

Gastón CEO & Co-Founder Alias: black_boss
John Matthesen

He is our local partner and general advisor at San Francisco Bay Area.

Energetic and accomplished executive, with over 29 years diverse business experience, including 21 years in high-tech. Hands-on experience taking companies from startup to global enterprises.

Extensive international experience in both Europe and Asia.

My focus is on leading edge and innovative technology, from planning and development to sales and implementation. I use road-tested market research, innovation and roadmapping techniques to drive operational success.

John VP Business Development Alias:
German Fagalde

Is one of our developers with more time in the company. Always ready for new challenges, and discuss new solutions is not a problem at all.

Given his experience in the area of ​​QA is one of those perfectionists and retailers who always want to have on your team.

Fan of extreme sports, racing and plays Rugby since he was 13 years old.

Expertise: Ruby on Rails y Jquery.

German Ruby on Rails developer Alias: canary
Pedro Saint-Girons

It has 3 and a half years of experience in web development, working with different programming languages and ​​focused on backend. In the nearly two years he has specialized in development on Rails.

Pedro is an excellent companion to any team would want to have, it's quiet, he likes the agile methodologies and is a perfectionist on the development process. He enjoys reading and being continuously in training.

In his spare time, meets his friends, goes to pubs and watch movies.

Expertise: Ruby on Rails, Jquery, Rspec

Pedro Ruby on Rails developer Alias: totein
Daniel Fernández

Always goes deeper and deeper in order to find where is the bug, and precise to choose the right solution.

Has almost 6 years on web development, always focused on large applications. He also has extensive experience in systems on Android Smartphone and Tablet.

He has experience in frontend, is passionate about research and new challenges out of the ordinary, enjoys participating in open source projects providing their knowledge and learning from them.

Likes soccer, cars and motorbikes. The weekend enjoys meeting with friends for barbecues.

Expertise: Ruby, Rails, Jquery, CSS, Android.

Daniel Ruby on Rails developer Alias: Daniel el travieso
Martín Villero

He is one of our most experienced developers in software development, with more than 8 years in the market.

He is fond of new technologies, research, making it an excellent member for innovative and cutting edge projects.

Martin has specialized in the areas of backend, frontend and systems integration and also has experience in project management.

He is passionate about making adventure travel, agriculture and native horses.

Expertise: Ruby on Rails, Web Services, Jquery, Javascript

Martín Ruby on Rails developer Alias: tincho
Martín Fernandez

Comes from working with other technologies, but since he met Rails he is really interested in become an expert on the subject. Always interested in learning about programming and finding the best solution for any problem.

Since 2011 has been working in the web and mobile area, and since 2013 his main focus is Ruby on Rails development.

He feels very comfortable working on frontend, always using DRY principle and never forgets that a good performance is a need for any site web 2.0.

Enjoys his free time doing sports, among his favorites are soccer and swimming.

Expertise: Ruby on Rails, Jquery, Javascript, CSS, Rspec, HTML

Martín Ruby on Rails developer Alias: tincho
Pablo Vilas

It has 5 years of experience, this is his third work, with experience in the mobile and web applications, focused on frontend.

Given its experience in other companies Paul is passionate about developing the client side, application performance, research new technologies, one of his qualities is to provide research talks and to share with their peers their knowledge and skills.

In his spare time he plays soccer, goes often to the cinema and meets with friends.

Expertise: Ruby, Rails, Jquery, HTML, CSS, Express, AngularJS, Android.

Pablo Ruby on Rails developer Alias: willy
Esteban Fernández

If you have to research and test new technology, Esteban is the right one. He has a great ability to understand new technologies and different paradigms.

He has 3 years of experience in software development and 10 months of experience with Ruby on Rails.

Is a very talented Full Stack Ruby on Rails developer, he feels comfortable in both, backend and frontend, above all his main goal is to solve the problem. He is always governed by the principle DRY.

One of his favourites hobbies is theater and music. With this hobby is he can mix the logic with creativity to achieve a great solution.

Expertise: Ruby on Rails, Jquery, CSS, Javascript, Objective C

Esteban Ruby on Rails developer Alias:
Darío Macchi

He specializes in quality assurance and agile methodologies due to his training as master in Software Engineering (M.Sc). He has 10+ years of experience working in start-ups and multinational companies, on projects ranging from content management applications to business intelligence and data visualization.

Passionate about software engineering research, so he drives the search of evidence to support the decisions made in the company.

As a hobby, he enjoys trying "odd" programming languages as Lisp, Lua and Clojure.

Expertise: software engineering (all SDLC stages), software development (client side mainly, JS, JQuery, SVG) and computer science research.

Darío COO & Scrum Master Alias: dariomac

Web development

Ruby on Rails is our favorite framework and we love working with it. We specialize in building usable web application to fit your business needs following the best agile principles and practices.

Hire us to work with you as your development team... we know we can make the difference.

Building StartUp Ideas

We take your idea from concept to completion. We can use our creativity and expertise to make real your ideas and even suggest improvements.

Bring your idea, we put our two cents in and we can build a MVP to test its viability.


If you have a running application and you need to modify it or add some features, we are the right team to do it. We have great people with wide experience in several projects and domains.

We keep up with the latest trends in design and technology, so we would be glad to use this knowledge in your legacy systems.

Mobile Development

If you want everybody have access to your business, you should develop mobile applications for smartphones. We know how to build only one application for all kind of devices as a way to decrease the time of product release.

Keep your business up to date offering mobile solutions. Your clients will be very grateful!

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GitHub activity

  • vairix-efernandez 3467953
    Support from new Trivia View - CR: GA
  • vairix-mvillero 6404c95
    fixes: Generators, and css isolation; CR: DF
Alvaro Muhlethaler
  • Alvaro Muhlethaler 4ca95bc
    Removes deleted files from manifest

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Where to find us

Direccion25 de Mayo 555 Of. 409/411 Telefono(+598) 2916 30 24

Our Location

The Centennial Building is one of the most important examples of modern architecture in the region. For the years when it was conceived and built, by resolution of the overall massing and its details and its formal decision stands as a relevant example. This building emphasizes an attitude typical Uruguayan architects of the time, to propose an architecture totally refreshing but also meet the characteristics of the existing city.

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