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Freelance Ruby Developer - K M Rakibul Islam
5.0 (2520 reviews)
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★Top Ruby on Rails Mentor since January 2016 (100 months in a row!)★
Experienced (15+ years) developer and friendly Ruby on Rails and React/Next.js/Redux Developer/Mentor (with passion for helping others learn) | ★ 3,590+ 5 ★ sessions/jobs. 8+ years on top of the Codementor Ranking ★ https://www.codementor.io/ruby-on-rails-experts I am a Senior Software Engineer from Toronto, currently working as a Ruby on Rails and React/Redux Developer at theScore Inc. I am passionate about helping and mentoring people, especially those who are new to web development and the programming world. I am specialized in explaining the core concepts of Ruby and Rails, Javascript, React, APIs and everything else along with the best practices. I focus on the learning experience of my students and make sure they get exactly what they want. I have excellent academic track records (Bachelor of Science in Computer Science and Masters in Computer Engineering from the University of Toronto) along with strong development and industry experience in Software Development and Web Development (15+ years coding experience in total). I have helped more than 700 individuals here at CodeMentor (with 3,590+ 5 ★ sessions) with their projects implementation, bug fixes, architecture advices, performance improvements etc. I have worked with a bunch of CEOs and CTOs of YC start-ups and helped them with their projects. Made long term relationships with many of them which I help in a regular basis today. I have helped a ton of bootcamp students here at CodeMentor and helped them build their web development career path and getting jobs after the completion of their bootcamp cohorts. Here at CodeMentor, I have helped people from all levels: From someone who is brand new to programming to 30+ years of experienced Senior Software Engineers, Product Managers and everyone in between. It's been an amazing journey here at CodeMentor for the last 8+ years! :-) I started programming and solving problems in 2006, at the age of 18. Since then, I wrote programs in a variety of programming languages such as C, C++, Java, PHP, Ruby, Python, Javascript, etc. These days, I use Ruby and Rails and React JS as my primary programming languages and frameworks. I can help with debugging your issues as well as refactoring your code according to the best practices and conventions out there. Helping people is my passion and motto in life. If you think I can help you in any way, please get in touch! Specialties: * Building scalable and performant backend APIs in Ruby on Rails (Active Model Serializer, GraphQL, Grape, Jbuilder, RABL, etc.) for android, iPhone or web applications. (For more than 12 million users). * Integration of backend APIs with Javascript frontend framework (ReactJS) using JSON Web Token (JWT). * Built highly scalable Push Notification System for theScore sports application (For ~10 million users). * Implemented instant player, team and news article search for the theScore and theScore eSports apps which have more than 6 million monthly active users using ElasticSearch and Rails. * Backend Ruby on Rails Development (With scaling, performance optimizations, database query optimizations, caching best practices, etc.). * Test Driven Development with clean code and best practices. * Web Scraping (Nokogiri, Mechanize) (Scrape data from anywhere on the internet!). * Reverse engineering complex APIs and web applications to write automated scripts to mimic and automate user behaviour and extract required data. * Explain concepts/solutions clearly and concisely according to the level of the client/student. (Helped over 700 people on CodeMentor with 3,590+ 5 ★ sessions) * Giving architecture advice for your application. Explain which tools/gems to use and why. * Setting up SSL certificates for Rails application (Nginx server) on AWS EC2 instance and securing your application. * Suggesting best practices and focusing on the best learning experience and long-term achievements. * Showing cool tips and tricks that I have learned over the past 15+ years (and still learning!) as a professional Ruby on Rails developer to be more productive and efficient at work. * Upgrading Ruby/Rails versions for your existing application. * Finding bottlenecks and Optimizing performance for your slow Rails applications. * I can help you to prepare for interviews for Ruby on Rails developer position, or any other Software Development position. I have successfully guided many developers who got their dream jobs after practicing coding interviews with me!
Freelance Ruby Developer - Ijeoma Arisah
5.0 (22 reviews)
Ruby on Rails Developer
I am a dedicated Ruby on Rails developer who thrives on challenges and is not afraid of getting her hands dirty in code. I want to do my part in the tech world by assisting where I can. I also love food, traveling, and movies. I have 2 huskies!
Freelance Ruby Developer - Mark Nyon
5.0 (7 reviews)
Full Stack Developer | Tech Lead
_Full-Stack Web Application Developer & SaaS/PaaS Product Architect with engineering leadership over distributed, remote, offshore, and onsite teams of front-end coders and back-end developers._
Freelance Ruby Developer - Adetokunbo Ige
5.0 (4 reviews)
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Senior DevOps Engineer - 10 yrs of experience | AWS | Azure | GCP
Hi, I'm Adetokunbo Temitayo Ige | a DevOps Engineer with experience in Platform Engineering, SRE, Database Administration, and Technical Writing. I want to share my knowledge with the community. Also educate and share my experience with people. Blog: https://igeadetokunbo.medium.com/
Freelance Ruby Developer - Arup Rakshit
5.0 (950 reviews)
Passionate Ruby/Rails/JS and React/Redux developer
I am a freelance web developer working out of India. My weapons of choices are : HTML, CSS, Javascript, SQL, Ruby, Ruby on Rails, React JS. I literally spend as much hours as possible every day on coding.
Freelance Ruby Developer - Taiwo
5.0 (821 reviews)
Experienced fullstack developer and co-founder
Thanks for checking out my profile. I have over a decade of full-stack dev experience with languages/frameworks like Ruby, Rails, Javascript, Nextjs and React. I enjoy mentoring/tutoring but I also have experience founding and growing a company. I co-founded a vc-backed startup that has helped SMBs exchange over 80 million messages with customers etc.
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Frequently asked questions

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance Ruby project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance Ruby request on Codementor, check out our article.

We don’t charge anything when you post a freelance hiring request for Ruby developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

We do a comprehensive technical and communications screen of all Ruby developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing Ruby developers’ user satisfaction rates.

As a platform, we strive to ensure you’re always happy with your Ruby project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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