Top Senior Ruby on Rails Developers - Dec 2017

UX Designer. Full-stack Rails + Laravel + Angular + Ember engineer w/ 10+ years of experience.

Platform engineer at envoy.com, designer, conscious experimenter, humanist, explorer of places, thinker of thoughts, taker of dares.

Founder of a Ruby on Rails consultancy, 18 years of full-stack development in multiple languages

Howdy! If you work with me, you'll find that I'm patient, a good listener, and am great at tracking down annoying bugs. I used to ran one of the largest Ruby on Rails shops in the world. I started as a Rails Engineer, shot up the ranks, and eventually ran the company as Partner and de-facto CEO. Before and after, I've worked as a freelance full-stack developer in a wide variety of languages. I started programming in 1997 and have been loving it ever since.

Go & Node.js & React expert. CTO & God level patient mentor with 20+ years of experience.

Hey there! I've been creating applications for 20+ years, and I love teaching. Your skill level is not important to me. You're a beginner, intermediate or expert developer. No problem. We all are junior developers for a lifetime, always learning. I can teach you how to pick up a new skill, or upgrade your existing skills or update you on the latest technologies. I would be delighted to mentor you also on how to develop yourself and your career, or the books you should read, the courses you should take, etc. If you're trying to create a product for your company or your startup, I can guide you on how to make it a reality. Which technologies you need, how to learn them, how to apply them. You'll be building your products or MVP in no time. I'm a scalability and web apps expert. I've broad experience on testing, coding and architecting scalable web apps, creating new products, giving advice on how to build scalable products. **My brief history:** 2016... Go 2013... Node.js, React, React-native, Redux, Functional Programming, RxJS... 2005... Java, Ruby, Ruby on Rails 2000... .Net 1990... Assembly, C, Basic, ASP, PHP, Javascript, HTML, CSS **Do you want to learn free coding advice from me? Follow me on twitter:** http://twitter.com/inancgumus

Javascript Guru and Coding Educator

I have been in the coding education sector for about 4 years now and I love helping students understand difficult concepts. I have over a decade of engineering experience with a degree in computer science. My specialty is Javascript and database development. I currently am highly invested in the MongoDB community. I will not only get you to the answer quickly but make sure you understand the complex problem or error on the screen :).

Entrepreneur and Ruby & Javascript Consultant

I am a geek, visionary, startup enthusiast, occasional tech blogger, software developer & entrepreneur and most of all a salesman. I am simply uninterested in mediocrity. I don’t settle for average. People say I have a mind that is always running--I'm just that guy who's guilty of staying up all night thinking about how I can be truly exceptional at what I do. You might call this a truly positive or competitive spirit, but I call it passion. I have cofounded that received +$1 million funding. I do web application (ruby on rails, padrino, lotus, javascript, haml, sass, css, twitter bootstrap, backbone.js, angular.js, sails.js, loopback, MEAN stack, ember.js, d3, react, ionic, cordova, phonegap, jquery, sinatra, less, bdd, spec, cucumber, tdd), mobile devices (objective-c, swift, iPhone, iPad, android, blackberry), SAP Mobile Platform, big data (hbase, hadoop, elastic search, opentsdb), dbs (mysql, sqlite, postgresql, sql server, mongodb, couchdb, memcached, cassandra, redis), fintech, startup, quant, clojurescript, typescript, go (revel), Scala (Play framework, Lift, Scalatra), facebook, twitter, java (grails), Erlang (Elixir) - customer development - business development - project and product management - hybrid mobile applications Cordova PhoneGap ionic - iPhone, iPod Touch, iPad, Apple Watch application - Android application Business: customer development, biz dev, product development, social marketing, scrum, agile, saas Finance: Portfolio Management, Quant Research, Statistical and Latency Arbitrage, Algo Strategies, Systematic and CTA Research, Quant Development, Portfolio Pricing and Valuation, Machine Learning Algo Trading, HFT, Implementing mathematical models for products and business processes. Cloud services: Firebase, Deployd, Socket.io, Parse, Salesforce, Heroku, Amazon AWS, Tesseract, Tridion, Keen.io, Pubnub, RethinkDB, neo4j, twilio, other skills: Fortran, Cobol, Lisp, C++, AI, kdb+, financial tools, product design, UX and UI design, Unix

Friendly, patient coach for Ruby, Python, JavaScript, Go, Data Science, Big Data, AI, Blockchain, Chatbots, React / Angular / Native. Technical co-founder of VC backed big data startup.

Hey all - I've been developing web applications for 12 years and love teaching, whether it is your first time, you're looking to pick up a new skill, or keep up on the latest technologies. I'm happy to advise also on the best courses to take, how to establish your career, what technologies to learn next, and how to get your first application or company started.

Experienced Ruby on Rails developer (~10 years) and teacher

I'm an experienced web developer (+16 years) passionate about teaching. My expertise areas are: * Ruby and Ruby on Rails developing. Mentoring. * Software Analysis, Software Methodologies. * Bug Magnet, really! If you're interested in long-term mentoring contact me. I do lower rates for contracts and I'm sensible to regional locations.

Full-stack developer with 18 years of experience, helping US startups full-time since 2005. Refactoring & code simplicity master.

Deep expertise in: frontend javascript (14 years), C, Java (12 years), PHP, perl, (8 years), Scala, Ruby, Rails (5 years), Objective-C & iOS frameworks (4 years). Big fan of TDD & best practices regardless of the technology stack. Writing code professionally since 1999, worked on more than 100 projects in the last 8 years. Featured in Washington Post in March 2013

Ruby and Javascript expert.

I am full-stack web engineer and I work with Rails and Node. I am good at front-end as well. I use vim + tmux.

Need to Hire a SeniorRuby on RailsDeveloper?

Get Started

Are You aRuby on Rails Developer?

Get paid while making an impact. Become a Codementor for the next wave of makers.

Apply as a Developer

CodementorX saved me a lot of time by sending a shortlist of qualified developers within 72 hours. On top of that, payment through CodementorX was secure and communication was easy. I was extremely satisfied with the engagement!

David Lasry
Creator of PlayZik

As a marketplace and 500 Startups company ourselves, we were happy to give CodementorX’s platform a go when we needed developers with specialized skillsets. They did not disappoint and allowed us to find qualified devs painlessly.

Itamar Yunger
Founder of Soundbetter

Besides having access to highly talented and experienced web developers, CodementorX's project management service also help manage timeliness and bridge communication between the founders and the web developers. This is extremely helpful and valuable, especially for non-technical founders like myself.

Jodie Lee
Founder of PerfectSpot

CodementorX is a freelance hiring platform uniquely different from other platforms. Freelancers on Codementor function as mentors to less experienced coders, who collectively help curate a list of the most elite mentors. When hiring through CodementorX, I know I’m hiring the best.

Guy Jack
Founder & CEO of FNDRZ