I will develop, fix, and optimize your ruby on rails application


About this gig
Are you looking for an experienced Ruby on Rails developer who can quickly solve issues, improve performance, and deliver production-ready features?
I am a Senior Full-Stack Developer with 10+ years of experience building and maintaining SaaS platforms, subscription billing systems, CRM solutions, automation tools, AI integrations, and cloud-based applications.
Get to know Irving Y
Senior FullStack Developer
- FromMexico
- Member sinceJun 2026
- Avg. response time1 hour
Languages
Spanish
FAQ
What type of Ruby on Rails projects do you work on?
I work on SaaS platforms, APIs, CRM systems, e-commerce backends, subscription systems, automation tools, and legacy Rails applications. I also handle performance tuning and system improvements for existing projects.
Do you fix bugs in existing applications?
Yes. I can debug and fix issues in production or development environments. I perform root cause analysis to ensure the issue is properly solved, not just patched.
Can you work with legacy Ruby on Rails applications?
Yes. I regularly maintain and upgrade legacy Rails systems, including older versions of Rails, improving stability, performance, and code structure.
Do you handle frontend work as well?
Yes, to a reasonable extent. I can work with JavaScript, jQuery, Bootstrap, ReactJS. For complex UI/UX-heavy frontend work, I can collaborate or integrate with your existing frontend stack.
Can you integrate third-party APIs or services?
Yes. I have experience integrating REST APIs, payment systems like Stripe, AWS services, and tools like OpenAI for AI-powered features.
Do you work on performance optimization?
Yes. I optimize database queries, background jobs, caching strategies, and overall Rails application performance to improve speed and scalability.
Do you deploy applications to production?
Yes. I can help with AWS deployment, Docker setup, CI/CD pipelines (GitHub Actions), and server configuration.
How do you usually work on a project?
First I review the requirements or issue, then I analyze the codebase, identify the root cause or solution, and propose the best approach before implementing changes.
Do you accept small tasks or only large projects?
I accept both. From small bug fixes to full feature development or system improvements.
Should I contact you before ordering?
A: Yes, that is recommended. It helps define the scope clearly and ensures I can deliver the best possible solution within the correct timeframe.
