You will get Ruby Developer | Full Stack Ruby on Rails SaaS | SaaS Development

Zlata B.Status: Offline
Zlata B. Zlata B.
5.0
Rising Talent

Let a pro handle the details

Buy Web Application Programming services from Zlata, priced and ready to go.
Zlata B.Status: Offline
Zlata B. Zlata B.
5.0
Rising Talent

Let a pro handle the details

Buy Web Application Programming services from Zlata, priced and ready to go.

Project details

Is your SaaS product idea still missing the right technical foundation to grow with your business?

I develop SaaS solutions that combine clear product logic, scalable architecture, and features users actually need in daily work. As a ruby on rails developer, I build systems with strong backend structure, flexible workflows, and reliable performance. My experience as a ruby developer helps me create maintainable products that are easier to extend as your SaaS evolves.

For modern product interfaces, I use react ruby on rails to connect smooth frontend experiences with stable backend functionality. I also integrate ruby on rails openai features when your platform needs automation, AI-assisted actions, or smarter internal processes. This ruby on rails saas approach works well for dashboards, subscriptions, admin areas, and custom business platforms.

Build your SaaS product with a structure made for growth. Send me a direct message to discuss your project.

ruby on rails | ruby developer | ruby on rails openai | ruby on rails | ruby developer | ruby on rails openai | ruby on rails | ruby developer | ruby on rails openai
Programming Languages
JavaScript, Python, Ruby/Ruby on Rails
Coding Expertise
Cross Browser & Device Compatibility, Localization, Security

What's included $3,000

These options are included with the project scope.

$3,000
  • Delivery Time 5 days
  • Number of Revisions Unlimited
5.0
2 reviews
100% Complete
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
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LP

Liudmyla P.
5.00
Apr 13, 2026
Ruby on Rails OpenAI SaaS Developer ( Full Stack Ruby on Rails ) She is a reliable Ruby developer with strong experience building and improving modern SaaS products. She worked confidently on a Full stack Ruby on Rails application, contributing across both backend and frontend tasks, developing new features, improving performance and supporting scalable product growth. She has solid hands-on experience with Ruby on Rails, Ruby, RSpec, Sinatra, PostgreSQL, HTML, CSS and jQuery, and writes clean, maintainable code. Сlear communicator who collaborates well with the team and approaches tasks with professionalism and strong attention to quality

AC

Anastasia C.
5.00
Mar 24, 2026
Ruby on Rails Developer for Web Platform Development This Ruby developer did an excellent job on the project. He showed solid hands-on experience with Ruby on Rails OpenAI, RubyMotion, RSpec and RubyMine, while remaining detail-oriented and easy to work with. Communication was smooth, the work quality was strong and he approached tasks with professionalism and care.
Zlata B.Status: Offline

About Zlata

Zlata B.Status: Offline
Python, .NET, Ruby on Rails, TS, Node.js, React Software Engineer
100% Job Success
5.0  (2 reviews)
Kyiv, Ukraine - 3:11 am local time
Hi, I’m Zlata. I’m basically a typical American software developer... just living in Ukraine now. And I always work in the EST timezone. I’ll write everything in any tech stack you have 😄

I’m a Software Engineer with 8+ years of experience as a Ruby on Rails developer, React developer, Node.js developer, Python developer, and .NET developer. I work with Ruby on Rails, React, Node.js, Python, .NET, PostgreSQL, Docker, AWS, JavaScript, TypeScript, API development, API integration, and SaaS software development.

I help companies build and improve SaaS platforms, ERP systems, CRM tools, dashboards, marketplaces, internal systems, API products, and complex web applications using Ruby on Rails, React, Node.js, Python, and .NET. My focus is clean product logic, stable delivery, scalable architecture, and software that stays easy to maintain as the business grows.

📊 My Achievements in Numbers:
🔶 Ruby on Rails Developer for a Construction Application Platform
▪ Helped build a Ruby on Rails + React platform for managing construction applications, reviews, documents, and stakeholder workflows.
▪ Reduced application review time by 42%.
▪ Supported 18,500+ construction applications processed in the first year.
▪ Helped the product reach $1.4M ARR within 14 months.
▪ Worked with Ruby on Rails, React, PostgreSQL, Docker, AWS, S3, and API integration.

🔶 React Developer for a Construction Materials ERP SaaS
▪ Helped improve a complex ERP SaaS platform for concrete, aggregates, and asphalt producers.
▪ Improved sales, pricing, and operational workflows through better product logic and scalable software architecture.
▪ 98% of demo users became clients after product improvements.
▪ 91% of users rated the interface as clear and intuitive.
▪ The product later raised $3.4M.
▪ Focused on React, Ruby on Rails, SaaS workflows, API development, and complex web application structure.

🔶 Node.js Developer for an Aviation Maintenance SaaS
▪ Helped improve a complex aviation maintenance SaaS product used by field teams.
▪ 96% of demo users became clients after the product improvements.
▪ 97% of field users adopted the product after the first try.
▪ Reduced user errors by 41% and made onboarding 62% faster.
▪ Supported product logic, API integration, dashboards, and connected SaaS workflows using Node.js, React, Ruby on Rails, and API development.

🔶 Python Developer for an AI Healthcare SaaS
▪ Supported an AI-powered healthcare platform that grew from a chatbot into multiple AI agents for clinics and hospitals.
▪ The product raised $20M+.
▪ Helped support workflows that increased patient visits by 31%.
▪ Helped reduce call abandonment by 98%.
▪ Worked with Python, API integration, automation workflows, AI-related product logic, and scalable SaaS architecture.

🔶 .NET Developer for a Utility Billing Platform
▪ Helped improve utility billing workflows for a SaaS platform processing complex customer, billing, and reporting data.
▪ Helped process $14M+ in utility bills within 6 months.
▪ Reduced billing cycle time from 9 days to 1.5 days.
▪ Supported 96% client retention through better product stability and workflow clarity.
▪ Worked with .NET, React, API development, reporting logic, SaaS architecture, and reliable software delivery.

Why should you hire me as a Software Engineer?
▪ 8+ years of experience with Ruby on Rails, React, Node.js, Python, .NET, JavaScript, TypeScript, PostgreSQL, API development, API integration, and SaaS software development.
▪ 120+ successful projects delivered across B2B SaaS, ERP, CRM, healthcare, construction, logistics, fintech, aviation, and internal business platforms.
▪ Strong experience with Ruby on Rails, React, Node.js, Python, and .NET for SaaS products, dashboards, admin panels, API-first platforms, integrations, automation, AI features, and enterprise systems.
▪ I use Claude, Cursor, GitHub Copilot, and ChatGPT to speed up research, debugging, refactoring, and delivery.
▪ I work well with founders, CTOs, product managers, and teams that need clear communication across Ruby on Rails, React, Node.js, Python, and .NET products.

What I can help you with:
✔️ Build or improve Ruby on Rails SaaS products
✔️ Create React dashboards, portals, admin panels, and SaaS interfaces
✔️ Build Node.js services and API integrations
✔️ Support Python automation, data workflows, and product logic
✔️ Work with .NET systems and connected software platforms
✔️ Build API-first products with Ruby on Rails, React, Node.js, Python, .NET, PostgreSQL, Docker, and AWS
✔️ Improve performance, stability, and maintainability of existing Ruby on Rails, React, Node.js, Python, and .NET applications
✔️ Support SaaS, ERP, CRM, fintech, healthcare, logistics, construction, and internal tools

Need help with Ruby on Rails, React, Node.js, Python, .NET, API development, or SaaS development? Message me and let’s discuss your product. 📩🤝

Steps for completing your project

After purchasing the project, send requirements so Zlata can start the project.

Delivery time starts when Zlata receives requirements from you.

Zlata works on your project following the steps below.

Revisions may occur after the delivery date.

write me first

Review the work, release payment, and leave feedback to Zlata.