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Looking for an experienced Full-Stack Developer with strong expertise in Ruby on Rails and React for a full-time contractual engagement of 3–6 months. You will work on a production application, handle new feature development, maintenance, and performance improvements. Responsibilities: Develop and maintain backend services in Ruby on Rails Build and enhance frontend features using React Write clean, well-tested, and maintainable code Collaborate with other developers and stakeholders on architecture and design Debug, optimize, and improve existing features Participate in code reviews and contribute to best practices Required Skills & Experience: Strong hands-on experience with Ruby on Rails Strong hands-on experience with React / React.js Solid understanding of REST APIs and integrations Experience with relational databases (e.g., PostgreSQL/MySQL) Familiarity with Git and standard development workflows Good communication skills and ability to work independently in a remote setup Nice to Have (Optional): Experience with CI/CD pipelines Experience with cloud platforms (AWS / GCP / Azure) Experience with testing frameworks (RSpec, Jest, etc.) Engagement Details: Full-time commitment (40 hours/week) Duration: 3–6 months (with possibility of extension) Remote work Hourly rate budget: 2–8 USD/hour Payments via Freelancer escrow Important Notes: Do not apply if your expertise is mainly in blockchain, crypto, or Web3. This project is not related to those domains. Please only apply if you can commit full-time for at least 3 months. When applying, please share: A brief summary of your experience with Ruby on Rails and React (years and key projects) Links to relevant projects or GitHub/portfolio Your normal working hours and time zone Your expected hourly rate within 2–8 USD/hour
ID Projek: 40313908
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79 pekerja bebas membida secara purata $11 USD/jam untuk pekerjaan ini

Hi There: Hope this note finds you in great spirits. Please note the synopsis of the resource working directly. Summary: Full Stack ROR & Front-end Software developer with 6.5 years of experience. Skills: Working experience in Ruby Working experience in Ruby on Rails. Good knowledge of AngularJS Very good knowledge of Stripe API integration for multicurrency. Good experience with Spree Commerce Knowledge of Development tool hipchat, pivotal tracker, asana, JIRA, Trello, GitHub Expertise in AngularJS,Vue.Js, jQuery, and JavaScript. (Jasmin, Protractor as well) Experience in HTML 5, HAML, CSS, and SASS Database knowledge of MySQL, Postgres, MongoDB and SQLite Cloud: AWS (EC2, Route 53, S3, CloudWatch, DynamoDB), Azure, Heroku, Digital Ocean We are a team of IT professionals mentored by very experienced leadership. We offer solutions on WEB and Mobile technologies. Please visit our company site www.kennedia.net. Look forward to hearing from you!! Thanks, Raman
$20 USD dalam 40 hari
6.8
6.8

Hi, I am an experienced Full-Stack Developer proficient in Ruby on Rails and React. I will develop and maintain backend services in Ruby on Rails, enhance frontend features using React, write clean code, collaborate on architecture, debug and optimize features, and contribute to best practices. Let's discuss further to align on project goals. Please start the chat to discuss this project in detail. Regards, Sai Bhaskar
$10 USD dalam 40 hari
6.2
6.2

Hi, I’m a full-stack developer with 8+ years of experience, including strong hands-on work with Ruby on Rails and React in production applications. I’ve built and maintained scalable systems with REST APIs, PostgreSQL, and clean architecture, handling both feature development and performance optimization. I’m comfortable working independently in remote teams, following Git workflows, code reviews, and writing maintainable, well-tested code (RSpec/Jest). I’ve also worked with CI/CD pipelines and cloud environments like AWS for deployment and scaling. You can review my past work here: [add your GitHub/portfolio link]. I’m based in Italy (CET timezone) and available full-time (40 hrs/week) with overlapping hours for collaboration. My rate is $8/hour, and I’m ready to commit for 3–6 months starting immediately.
$8 USD dalam 40 hari
5.4
5.4

With 5+ years in developing full-stack applications, I strongly believe that my skill set and experience make me an ideal candidate for your project. I have deep proficiency in Ruby on Rails and React - the core technologies your project demands. Over the years, I've worked on a number of successful projects, building not just competent code but also optimized, scalable and user-friendly applications - qualities that align perfectly with what you're looking for. In addition to my technical skills, I genuinely enjoy collaborating with other developers and stakeholders to come up with the best possible solution that meets the unique needs of each project. I always emphasize clean and maintainable code in my work, making it easier for future upgrades, optimization and troubleshooting. Furthermore, my thorough understanding of REST APIs and Git will be invaluable in ensuring smooth integration and an efficient development workflow. Lastly, as someone skilled in remote work environments, I'm comfortable working independently while keeping excellent communication lines open. This adaptability has enabled me to deliver quality work even when working across multiple time zones or autonomously. In terms of engagement details, I can commit to 40 hours per week for at least 3 months at a reasonable hourly rate within your budget. Thank you in advance for considering my application—let’s turn your ideas into reality together!
$5 USD dalam 40 hari
4.9
4.9

With over 13+ years of experience as a Full Stack Developer, I have cultivated my skills rigidly to adapt and excel in current technologies - and that prominently includes your project's core requirements: Ruby on Rails, React, GIT and full-stack development. My in-depth knowledge of developing and maintaining backend services in Ruby on Rails has been put into practice in various production-grade projects. Combined with my development proficiency in frontend features using React-which I have developed for numerous prominent clients-I can deliver first-class features with your desired functionality. It's vital to collaborate effectively while working remotely, and I assure you of offering good communication skills and an ability to work independently that aligns with your needs. Having worked on similar scale projects, I understand the significance of writing clean, well-tested, and maintainable code that is performant while ensuring new feature development along with effortless maintenance. Certainly, we are both aware that optimization can be a persistent challenge; however, it's one that I always look forward to surpassing. My experience has taught me the importance of debugging, optimizing and improving existing features regularly to deliver at my best. thanks chandan kandar
$5 USD dalam 30 hari
5.2
5.2

Hello,! I’m excited about the opportunity to help with your project. Based on your requirements, I believe my expertise in Node.js, PostgreSQL, MySQL aligns perfectly with your needs. How I Will Build It: I will approach your project with a structured, goal-oriented method. Using my experience in Ruby on Rails, MySQL, Node.js, PostgreSQL, AngularJS, Git, Full Stack Development, REST API, I’ll deliver a solution that not only meets your expectations but is also scalable, efficient, and cleanly coded. I ensure seamless integration, full responsiveness, and a strong focus on performance and user experience. Why Choose Me: - 10 years of experience delivering high-quality web and software projects - Deep understanding of Node.js, PostgreSQL, MySQL and related technologies - Strong communication and collaboration skills - A proven track record — check out my freelancer portfolio. - I’m available for a call to discuss your project in more detail - Committed to delivering results on time, every time Availability: I can start immediately and complete this task within the expected timeframe. Looking forward to working with you! Best regards, Ali Zahid United Arab Emirates
$5 USD dalam 40 hari
5.0
5.0

Hello, With over a decade of solid experience in web and mobile development, I have made quite a mark for myself. Despite specializing primarily in *PHP frameworks*, I have acquired immense flexibility, allowing me to comfortably navigate *Ruby on Rails* and *React* with obstinacy. Beyond sheer expertise, my commitment to following best practices is another strength I bring to the table. In every project, I write clean, well-tested and maintainable code that ensures the comprehensibility and scalability you seek. And not only would I be familiar with using Git and following standard development workflows, but my comprehensive knowledge of relational databases (including PostgreSQL and MySQL) only serves to bolster the quality of my work. In sum, I offer a holistic dedication backed by impressive technical acumen that will guarantee not only efficient Ruby on Rails and React development but also a willingness to collaborate and contribute meaningfully to your team. For someone who deeply values "client work satisfaction" –- which I count as one of my main priorities –- entrusting this Senior Full-Stack role for your production application would lead us to actively improve existing features and collaboratively enhance new ones into an end product both sophisticated and seamless. With Regards!
$8 USD dalam 40 hari
4.8
4.8

I’ve spent the last six years scaling high-traffic SaaS applications using Ruby on Rails and React, most recently leading an architecture migration where we optimized API response times by 40% while rebuilding the frontend for responsive state management. Your 3–6 month timeline aligns perfectly with my approach to building maintainable, test-driven codebases that do not just meet immediate requirements but also scale gracefully. I understand the nuances of managing a complex RoR backend alongside a modern, dynamic React UI, and I am prepared to integrate into your team and contribute high-quality code from day one. To ensure a robust application, I focus on lean Rails controllers and delegating business logic to Service Objects, paired with a React frontend utilizing Hooks and React Query for efficient data synchronization. I prioritize clean RESTful API design with comprehensive RSpec coverage for backend reliability while implementing Jest for frontend component integrity. My workflow involves modular component architecture to maximize reusability, strict adherence to RuboCop and ESLint standards, and CI/CD integration to maintain a rapid yet stable deployment cadence for all upcoming milestones and features. Could you share more about the codebase—are we scaling an existing production environment or building new modules from scratch? Also, do you have specific third-party integrations, such as Stripe or AWS, that are central to your roadmap for the next quarter? I would be happy to hop on a quick discovery call to discuss how my technical background aligns with your development goals for the coming months. I look forward to the possibility of collaborating with your team on this project.
$25 USD dalam 7 hari
4.2
4.2

Hello, I’m a full-stack developer with strong experience building and maintaining production web applications, especially on the frontend with React and across full-stack workflows involving APIs, databases, performance improvements, and long-term feature development. I’m comfortable working independently in a remote team, writing clean maintainable code, debugging existing systems, and contributing steadily to ongoing product work. My background is stronger in modern full-stack product development, and I can work confidently on React, REST APIs, integrations, database-driven features, and day-to-day application maintenance. I’m available for full-time commitment for 3 months or longer, and I can align my working hours with your team as needed. My expected rate is 8 USD per hour. If your Rails backend work is closely tied to React feature delivery and ongoing maintenance, I can be a reliable long-term contributor. Would you like me to send a short summary of similar production work and my available working hours in the next message? Let’s discuss detail via chat.
$8 USD dalam 40 hari
4.1
4.1

Hi there. I have read you job description carefully, and I am very excited because I am a senior Ruby on Rails developer. I have worked on Ruby on Rails, React.js, Heroku, PostgreSql for over 7 years. I am very confident to satisfy you on time. I would like to working with in a great relationship. Best Regards.
$10 USD dalam 40 hari
4.1
4.1

As a veteran of the coding world with an impressive 7-year tenure, I can confidently say my experience aligns perfectly with your project requirements. During my career, I have been heavily immersed in contemporary technologies like Ruby on Rails and React. Strongly acquainted with REST APIs and integrations, relational databases, as well as Git and standard development workflows, I believe I possess the skills needed to not just meet your project expectations but exceed them. It's also worth noting that I am as dedicated as they come. My mindset approaching every project is geared towards absolute customer satisfaction - ensuring all tasks are delivered competently and promptly. Additionally, as an added value; every process-notch is observed meticulously to maintain code cleanliness & quality, maximize performance, and produce maintainable final products. In conclusion, for the next 3-6 months, trust that when you hire me, you're hiring someone who lives by & stands by what they put in their sales pitch - because for us both - meeting client's expectations is what will drive this project to its fullest success!
$2 USD dalam 40 hari
5.9
5.9

Hi, How are you doing today? Thank you for posting your job requirements. Having read through your job description, I'm very confident that I'll be able to provide a dedicated service as I have all the skillsets necessary for this job. I’m a experienced software engineer with 7+ years of professional experience in ROR website development. I can finish your project successfully. Ready to discuss more details. Best regards,
$5 USD dalam 40 hari
4.0
4.0

Dear Hiring Manager, I hope you are doing well!!! Thanks for providing me with an opportunity to bid on your job. I read through the job details extremely carefully, and I am sure that I can do the project very well. I have 8+ years of experience in Dot Net/React website development/design . Proficient skills:- Language: C#. API integration: Web API, Web Services, Window Services, WCF, 3rd Party APIs, Rest API, Facebook API. Database: MSSQL, MySQL. Framework: VB.NET, WinForms, ASP.NET Web forms, MVC, .NET Core, Angular JS, Angular 18, WPF. Front end: JavaScript, jQuery, HTML5, CSS3, Bootstrap 3/4, Ajax, Figma to HTML/CSS. Payment Gateway: Stripe, We Pay. Source Control: Git, Source Tree, Bitbucket, DevOps. Tools: DevExpress, Telerik. Testing: Selenium Please share your website requirements: After a complete discussion of your project. Thank you for putting in your valuable time. I will be looking forward to your reply. Best Regards. Sunny
$15 USD dalam 40 hari
4.0
4.0

Beware that full-stack projects combining Ruby on Rails and React often suffer from subtle integration issues that degrade performance and user experience; your core technical need is maintaining clean, coherent communication between backend services and front-end components in a production environment while enabling new features and optimising legacy code. At DigitaSyndicate, a UK-based agency, we don't just write code; we architect infrastructure to protect your investment. Our local accountability ensures thorough testing and quality control, safeguarding your application against regressions and security vulnerabilities common in remote setups. Have you validated the interplay between your REST API endpoints and React components under real-world load to prevent race conditions or data inconsistencies during feature rollouts? Casper M. | DigitaSyndicate
$6 USD dalam 14 hari
3.5
3.5

As the writing on my billboard-sized résumé suggests, I'm Ateesh, and quality is my calling card. With more than 2.5 years of experience as a full-stack software engineer, I've built solutions from ideation to deployment with Ruby on Rails and React being my front-runner technologies. I possess end-to-end development skills and specialize in developing clean, well-tested, and scalable code that can deal with real user load and not just theoretical. One area where I think I truly shine is with REST APIs and backend systems. Thus, essential tasks like building upon existing backend services, developing new ones as per project requirements using Ruby on Rails won't be a challenge for me. Moreover, with hands-on expertise in React.js, I can effortlessly handle frontend features adding further value to your project. I also understand the importance of good collaboration and code maintainability—a necessity when working on a production application with multiple cross-boundary stakeholders. So, let's take charge of that project at hand together: I'll deliver exceptional results on time while keeping you informed throughout the process. Can't wait to hit the ground running!
$4 USD dalam 40 hari
3.2
3.2

Hope you are doing well! I am ready to start immediately. Extensive experience developing full-stack applications using Ruby on Rails for backend services and React for dynamic frontends. Previous projects included REST API integrations, relational database management with PostgreSQL/MySQL, and performance optimization for production apps. Challenges such as legacy code maintenance, scaling issues, and debugging complex interactions were resolved through refactoring, efficient querying, and thorough testing with RSpec and Jest. Familiarity with Git workflows, CI/CD pipelines, and cloud deployments ensures smooth collaboration and deployment. Portfolio includes several live production applications with new feature development, maintenance, and ongoing performance improvements. Flexible to work full-time remotely, delivering clean, maintainable code and adhering to best practices. I know what do I build for you, can complete it to your full satisfaction within your timeline. I am ready for you and waiting here. Thank you.
$5 USD dalam 40 hari
3.3
3.3

Dear Hiring Manager, I am writing to express my strong interest in the 3-6 month full-time contractual Full-Stack Developer position, as outlined in your posting. With a robust background in Ruby on Rails and React, I am confident I can contribute effectively to your production application, focusing on new feature development, maintenance, and performance improvements. I bring several years of hands-on experience in designing and implementing complex web applications using a modern tech stack. My expertise lies in building scalable backend services with Ruby on Rails and crafting dynamic, user-friendly frontends using React.js. I have a solid understanding of REST APIs, relational databases like PostgreSQL, and standard development workflows including Git and CI/CD pipelines. In previous roles, I have successfully debugged and optimized existing features, participated in rigorous code reviews, and collaborated effectively with remote teams to meet project deadlines. I am a self-starter with excellent communication skills and the ability to work independently, ensuring high-quality, well-tested, and maintainable code in every project. I can commit 40 hours per week for the entire duration of the contract and my skills align perfectly with your requirements. I am ready to dive into the project and help enhance your application. Thank you for your time and consideration.
$3 USD dalam 40 hari
2.7
2.7

As an elite Full-Stack Developer who's thrived working with Ruby on Rails and React for over a decade, I'm confident that I have the skillset and dedication you need for your project. With vast knowledge in crafting high-performing applications that endure and grow, I strive to build scalable, secure, and user-friendly systems. My track record in developing REST APIs, handling integrations, and maintaining databases like PostgreSQL/MySQL is testament to my ability to deliver seamless backend services. Moreover, my expertise in frontend design and implementation using React will ensure elegant yet powerful features tailored to your needs. Collaboration, testing and stellar code maintenance are at the heart of my workflow. In addition, acquainted with CI/CD pipelines and cloud platforms like AWS/GCP/Azure, I am always seeking innovative ways to improve productivity through the latest industry practices. Ultimately, my end-to-end skills make me an efficient one-stop-shop for tackling your production application with finesse.
$5 USD dalam 40 hari
2.3
2.3

Hi there, You’re absolutely in the RIGHT PLACE. I’ve delivered SIMILAR PROJECTS multiple times and know EXACTLY how to execute this efficiently and correctly from day one. To lock down the SCOPE, TIMELINE, AND PRICING, I’ll need to ask you a few key questions. Unfortunately, Freelancer’s 1500 CHARACTER LIMIT doesn’t allow me to break everything down properly here. Let’s jump on CHAT so I can show you my PROVEN PAST WORK, walk you through the REAL RESULTS I’ve delivered, and outline a CLEAR ACTION PLAN for your project. You’ll immediately see why my approach is DIFFERENT and EFFECTIVE. If you’re serious about getting this done RIGHT, I’m ready to move forward. Looking forward to CONNECTING and WINNING TOGETHER. Cheers, Mayank Sahu
$5 USD dalam 40 hari
1.9
1.9

✅✅✅Hi, There,✅✅✅ I’ve taken a look at your project, and it’s clear you’re aiming for something that not only looks good but actually delivers results. At the end of the day, I don’t just build websites — I focus on creating something that supports your goals, whether that’s generating leads, improving conversions, or strengthening your brand. From what you’ve described, the key challenge will be Looking for an experienced Full-Stack Developer with strong expertise in Ruby on Rails and React for a full-time contractual engagement of 3–6 months, and that’s exactly where I can help. I’ll make sure you end up with a website that works for you, not just something that looks nice. I’d love to chat more about your project and see if we’re the right fit. Thank you, Anton D.
$50 USD dalam 31 hari
1.9
1.9

New Delhi, United Arab Emirates
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Ahli sejak Okt 8, 2020
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