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Top freelance Ruby developers available to hire

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Freelance Ruby Developer - Adetokunbo Ige
Freelance Ruby Developer5.0 (7 reviews)

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 - Leonardo Rojas
Freelance Ruby Developer5.0 (47 reviews)

Professional and experienced Computer Engineer, with over 12 years of experience in company computing development and a strong knowledge of Ruby, PHP, AWS and Python. I can bring a strong focus on goal achievement and a proven history of working as a project lead to achieve quality, performance and scalability on production/released products.

Freelance Ruby Developer - Reza Jelveh
Freelance Ruby Developer

Reza is an accomplished CTO and engineer with extensive experience in near-silicon design and problem-solving. He has done stream processing in all kinds of domains, using MQTT-SN, HL7 in healthcare, and mSEED and SEGY in earthquake analysis, utilizing a wide array of databases and programming languages. Passionate about building, Reza has maintained projects such as Ansible, universal-ctags, and QMK, and contributed to the Linux kernel and EDKII (UEFI).

Freelance Ruby Developer - Vijender
Freelance Ruby Developer5.0 (240 reviews)

A full stack developer, mainly experienced in **Ruby, Rails, Java, Python, Streaming platforms, distributed Systems**. I Have **3 year of teaching experience** , helping students from different countries in enhancing their problem solving skills. Being a Mentor, i try to avoid Spoon-feeding, motivate my students to write clean and elegant code.

Freelance Ruby Developer - Taiwo
Freelance Ruby Developer5.0 (830 reviews)

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.

Freelance Ruby Developer - K M Rakibul Islam
Freelance Ruby Developer5.0 (2526 reviews)
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Experienced (15+ years) developer and friendly Ruby on Rails and React/Next.js/Redux Developer/Mentor (with passion for helping others learn) | ★ 3,595+ 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 800 individuals here at CodeMentor (with 3,595+ 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 3,595+ 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 17+ 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 - Scott Murray
Freelance Ruby Developer5.0 (4 reviews)

Software Engineer with a background in Mechanical Engineering. I specialize in Ruby on Rails, Javascript incl. (Stimulus, Vue, Angular, React), and TDD (RSpec, Cucumber, Jasmine/Karma, cypressJS). Reach out to me for code reviews relating to any of the above.

Freelance Ruby Developer - Joshua Nussbaum
Freelance Ruby Developer5.0 (3 reviews)

Over the years many developers have helped me out. So, I'd like to do the same for others. I've done work for Shopify, Samsung, BP, Aldo, and many more companies. I have a lot of real world experience developing useful software. My focus has always been writing simple code that easy for others to deal with. If you need any assistance with a project or for mentoring, feel free to reach out. I'll do everything I can to help.

Freelance Ruby Developer - Dan Brown
Freelance Ruby Developer5.0 (61 reviews)

**Full-Stack Software Engineer** - Software engineer with 8+ years of experience building full-stack MVPs and APIs, mostly in Ruby on Rails - A bunch of experience with React, jQuery and vanilla JavaScript **Data Science** - Experienced in data science (both in R and Python) - MS in Analytics from Georgia Tech - Experienced in numpy/pandas, regression, classification, and other machine learning models For bigger projects, I have experience leading dev teams (including designers) and being a product manager.

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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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