I created Sinatra (www.sinatrarb.com) and co-created Doozer (http://github.com/ha/doozerd). I saw Elvis at a gas station the other day. I speak Ruby, Go, Erlang, JavaScript, C, C++, and more. My preferred form of transportation is Git. Heroku (heroku.com) is where I hang my hat. My Mom thinks I'm totally awesome. You didn't see me.

Edwin has plenty of experience in the IT field, working as contractor for some top 10 Fortune companies and he always takes past results into consideration. He seems to be more productive when he does not have any task assigned to him (he reevaluates something and improves it just for fun) and he comes up with the most ingenious solutions for every situation, he considers himself as native chicken wings cooker and home made ceviche specialist.

César Salazar is an investor and founding partner of Mexican.VC, the Silicon Valley discovery fund for Mexican startups. He has been an entrepreneur and interaction designer for more than 10 years. Recently, he has been leading key efforts to empower the hacker and startup ecosystems in Mexico, his home country. Additionally, he's one of the main promoters of SuperHappyDevHouse, Hackspedition and StartupWeekend. César is a traveller, an amateur photographer, and a keen observer of human behavior.

Federico began working with Rails in 2006. He is also passionate about team efficiency, and is a Certified ScrumMaster. While working for Microsoft as a technical evangelist, he improved his project management skills, as well as his business knowledge. He is attracted to new challenges, building stuff and solving problems. He loves mentoring and training, turning deeply complex technical concepts in simple analogies. His sense of humor makes him a great team motivator.

A Mac lover and Ruby all-in-one backend expert. His experience in the server provisioning world and background as software developer result in quick rollout of fast, secure and reliable backend Ruby and Rails applications for the enterprise.

Software engineer / consultant at Tacit Knowledge. Experienced on enterprise CMS, search and e-commerce web-based applications for retail companies. Hacker, rails enthusiast and truly believer / follower of the pragmatic philosophy, software engineering best practices and agile methodologies. Also member, collaborator and enthusiast of software communities in Guadalajara, Jalisco.

Begotten in a Island, born in the city, learned to walk in boat. Resource base economy activist. Founder @bakedweb and @esturistico

I write awesome and very opinionated Ruby code for a living and love it. In the past I have moved heaven and earth writing rocket-science software at a stealthy security firm, pioneered one of the web’s first AJAX applications at my startup Blue Ripple, and as one of the earliest Rocketeers, I shaped the awesomely productive development culture at Hashrocket. I am an active open source developer and co-host the Ruby5 podcast. I am @leshill on Twitter and my github account is http://github.com/leshill

A coder from 'the border' who lives now in Colima. He moved there because he joined the coolest Ruby shop in town. He woke up to Ruby after some boring years in .NET

Software developer, contributor to open source projects, author and speaker, iconoclast. Also principal at The Hybrid Group a Los Angeles software consultancy. This will also be Ron's second time in Colima, second time talking at Magma Rails! Also: 'Se habla español'.

Daniel has been working with the building blocks of the internet for over ten years now. He has a huge geeky passion for technology, aesthetics, and the internet. Lives in LA and is the most hybrid person of The Hybrid Group. This will be the second time he visits Colima. Also, he is the only person who has actually worked-out intentionally at the Crowd Interactive offices (push ups and all those crazy exercises).

Rafael has been working with Ruby for 3.5 years and doing web development for more than 10 years (always from his home), he is currently working as Rails/NodeJS developer at ELC Technologies, working in the MaaSive and CityEats projects, in his spare time he enjoys coding, blogging in www.raflabs.com and playing the bass in a reggae-ska-bolero-cumbia band.

geemus (Wesley Beary) [http://github.com/geemus] is an avid Rubyist, Open Sourcer and Herokai. He spends his days improving developer experience at Heroku and spends his free time working on fog [http://github.com/geemus/fog], developing games, prototyping world domination schemes, and hacking his health.

Application Developer, internet entrepreneur and technology aficionado from Hermosillo, Sonora. Worked with different technologies starting from a hardware background and eventually moved to web programming such as Ruby on Rails. Guinness record breaker.

Konstantin Gredeskoul is currently the CTO for Wanelo.com, a social bookmarking site dedicated to shopping. Prior to Wanelo, Konstantin was the Principal Engineer at ModCloth, Inc, where besides leading technology and architecture of the company, he also managed a team of 20+ developers in several geographic locations. Before ModCloth Konstantin served as the CTO of True Ventures-funded Infectious.com -- a store for user-generated adhesive vinyl designs, as well as lead all web development effort at print-on-demand bookstore Blurb.com, where he helped design e-commerce infrastructure in Ruby on Rails from scratch. In his expansive software career Konstantin worked on a variety of large scale deployments, with distributed components written in multiple languages, often with high availability and low latency characteristics. Konstantin has a BSc (Hons) degree from Monash University, Australia, with major in mathematics.

Part of Nebula Ideas, I have fun everyday wit Ruby, HTML, CSS and Javascript. Always looking for being better.

Mexican developer, writer and salesman. Committed for creating a world with more and better opportunities. Raised as an autodidact with hunger for knowledge, graduated from the University of Guadalajara in Informatics, worked there for almost seven years, teaching, developing and administrating systems.

Coming from the school of _why and learning to program just for fun - later for profession -, I first fell in love with Ruby, which took me to Rails. I work at Freshout, and live on the zone where backend and frontend overlap. With a hacker spirit, I enjoy helping run communities and events like HackerGarage, and SuperHappyDevHouse at Guadalajara. Oh, and you can call me Chubas.

Norberto is an instructor of iOS, also he is the co-founder of the CocoaHeads user group in Mexico City. He also founded Raku, a consulting company that has been creating mobile applications for US and Mexican companies. When not coding, reading, speaking, or teaching, Norberto is training for the next marathon or mountain climbing.