Freelance Gems developer in San Francisco, United States

Are you new to Rails? Need help debugging or cleaning up your code? I can help!

Mastering the in's-and-out's of Rails can be tricky, especially for a beginner. I've been using the framework exclusively for over 6 years, so I can help you learn from my own experience. -- I've been running my own NYC Ruby on Rails consultancy for the past 6+ years, working with entrepreneurs, startups, and small businesses to build web applications for their technology-based businesses. My previous experience was as a .NET developer, so I know what it's like to be learning Rails for the first time. I can help with *debugging* those issues that you just can't figure out, *refactoring* th...
Freelance Gems developer in Bangkok, Thailand

I help business with their tech

I have been a developer basically all my life. Started early in high school with programming games on my calculator, studied computer science and after graduation made my career as a developer. I worked for small startups and large coorperations. I always loved helping out my colleagues and figuring out complex problems. Whenever a nasty bug was resolved it put a smile to my face. I use Ruby on Rails on a daily basis and know my way around. On the side I have been coaching this wonderful technologies to newcomers. It's alwqys great to see technology through the eyes of someone else.
Freelance Gems developer in Buenos Aires, Argentina

Full-stack web developer, fan of intuitive APIs and modularized design.

I've been a web developer for over 6 years. I enjoy the challenges of both backend and frontend development. In general, I like focusing on writing predictable APIs, from the lowest level all the way up to a system's design - I believe having such a solid foundation is the best way to improve the overall quality of the code written by a team. I stay up to date by constantly trying new technologies, attending and talking at local meetups and keeping in touch with the community in general.
Freelance Gems developer in Spofford, United States

Software Engineer, Teacher, Explainer and De-Mystifier

I'm a software engineer with over ten years of exprerience in software architecture, client-server programming, and dynamic languages -- Perl, Python, Ruby, Javascript. I'm also a humanist who's overeducated in music theory and history, with experience teaching in a college classroom and in a software boot camp environment. If you're learning to code or struggling with a problem that's just out of your grasp -- the best way to learn! -- I can help you break problems down, understand the pieces, and create a solution.
Freelance Gems developer in Garland, United States

Full-stack Web Developer

I am a full-stack web developer specializing in holistic design and web security. I have over 10 years of experience as a web developer and have been using Ruby on Rails for 5 years. I am an active open-source contributor and am the author of several Ruby gem's including Caseadilla and Tektite Software's Authoreyes and Ruby Utils. My preferred technologies include Ruby on Rails, Ember.js, Node.js, Angular.js, Crystal, and AppGyver Steroids, among others. I enjoy reading philosophy and scuba diving, and occasionally both at the same time.
Freelance Gems developer in Jaipur, India

Ruby Programmer

Ruby/R.O.R. programmer.
Freelance Gems developer in Cairo, Egypt

Passionate Software Engineer

I am a technology-loving geek. I love problem solving and programming. I have been programming for over 5 years and have experience in many fields including web, mobile, game development and also data science and finally virtual reality and augmented reality applications.
Freelance Gems developer in Gurgaon, India

Code Guru in Rails, Laravel and Jquery

I am a skilled Ruby on Rails developer with experience in various programming languages: Ruby on Rails, PHP, Laravel, jQuery and CSS
Freelance Gems developer in San Francisco, United States

Applied Research / Machine Learning

Hi I'm Yad. I build all day everyday! I currently do applied research and development in the field of machine learning. My background is in computer science, I introduce myself to new folks as a fullstack, half stack, any stack needed engineer. I've been a tech lead in a small sized team till recently to build over a dozen of production level products. I'm currently running a Research and Development team for machine learning. For me, the harder the challenges are, the more exciting they're to be tackled.
Freelance Gems developer in Brooklyn, United States

Motivated Ruby on Rails Developer

I am currently working as an Associate Software Engineer at an education software company out of Boston. I primarily work with Ruby on Rails. I love helping people with their problems and guiding people on their path as a developer.
Freelance Gems developer in Chicago, United States

Experienced software engineer. In-experienced entrepreneur.

Running at a low rate until I get some reviews! Currently a co-founder at my virtual reality start-up, Anarchist.com. Previously an engineer at Groupon where I automated financial systems with Rails, Clojure, MySQL, Postgres, MongoDB/TokuMX, Salesforce, and more.
Freelance Gems developer in New York, United States
Hi there! My name is Arun and I've been a software developer and instructor for the last 5 years. I currently work at General Assembly as a code instructor and mentor, and I'm excited to help you learn how to code!
Freelance Gems developer in Santa Barbara, Honduras

Web developer with 10+ years of experience that range from infrastructure to development

Responsible for IT Infrastructure and Data Center Operations for 10+ years, also been in the entrepreneurship front, but lately, I decided to improve my developer skills and combine them with my previous experience, both technical and non-technical. I have written code in the trenches, led and managed teams. I like to solve problems with software, sometimes hardware, and sometimes by just sitting and thinking and chatting with other smart people.
Freelance Gems developer in Lagos, Nigeria

Frontend developer and UX | UI designer

I enjoy building products with great user experience and rich UIs using one of my favourite tools, JavaScript (AngularJS and React). I love to learn and give back. I believe the day you stop learning is the day you start dying. To relax, I play the guitar and piano. Music is life!
Freelance Gems developer in Raleigh, United States

Professional Rails developer with 10+ apps

I am a professional Ruby and Rails developer. I've been working in Rails for eight years. Previously, I developed in PHP, Perl, Java, C, and other languages. I've been using Unix for more than twenty-five years. I have an advanced degree in computer science from Purdue University and was formerly the Editor-in-Chief of Linux Magazine. You can find much of my own technical publishing on developerWorks.

Need to Hire a SeniorGemsDeveloper?

Get Started

Are You aGems Developer?

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

Apply Now
View the latestfreelance Gems jobs

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