Concerned about poor app performance impacting your bottom line? Research indicates that 53% of users will abandon an app if it takes more than three seconds to load. I am a Senior Ruby on Rails developer with a 8 years of experience in web application development, with a deep understanding of the Ruby on Rails framework, I am committed to delivering exceptional results and providing efficient solutions to your projects 𝐌𝐘 𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐀𝐑𝐄: 1. Spearheaded the successful delivery and launch of 25 sophisticated Ruby on Rails web applications, ensuring seamless functionality and adherence to client specifications, resulting in high client satisfaction rates 2. Orchestrated performance optimization initiatives, implementing cutting-edge strategies that led to a remarkable 42% reduction in page load times, enhancing user experience and increasing user engagement 3. Guided a multidisciplinary development team in the seamless migration of a complex legacy system to Ruby on Rails, streamlining operations, improving system efficiency, and generating substantial cost savings in maintenance and support 4. Implemented rigorous security protocols and industry best practices, fortifying Ruby on Rails applications against potential cyber threats and reducing the risk of data breaches by a significant 50%, safeguarding sensitive user information 5. Demonstrated active involvement in the Ruby on Rails community by making impactful contributions to open-source projects. Garnered recognition for 3 notable code contributions, widely adopted by the community, and enhancing the overall functionality and reliability of the Ruby on Rails ecosystem 𝐖𝐇𝐀𝐓 𝐌𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐒𝐀𝐘 𝐀𝐁𝐎𝐔𝐓 𝐌𝐄: ⭐️ «Vladimir delivered exceptional results for our healthcare project. Gotoinc’s expertise in Ruby on Rails development exceeded our expectations. Their attention to detail, adherence to coding best practices, and a strong focus on security ensured the protection of sensitive patient data. Their professionalism, effective communication, and timely delivery were impressive. We look forward to future collaborations» - Sarah, CTO ⭐️ «We are highly satisfied with Gotoinc Team’s work on our e-commerce platform. Their deep knowledge of Ruby on Rails and e-commerce best practices resulted in a robust, scalable, and user-friendly web application. Their optimization techniques improved performance, leading to faster page load times and increased conversions. Their proactive communication and attention to detail made the project a success. We highly recommend the Gotoinc team for e-commerce projects» - Alex, Co-Founder 𝐇𝐎𝐖 𝐓𝐇𝐄 𝐇𝐈𝐑𝐈𝐍𝐆 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 𝐋𝐎𝐎𝐊𝐒 𝐋𝐈𝐊𝐄: There are two options for collaborating with Gotoinc: - Talents-as-a-Service model a dedicated expert(-s) on a subscription basis. - Project-Based Collaboration model we deliver a certain scope or solution in a pre-defined timeline/budget. 𝐇𝐨𝐰 𝐭𝐨 𝐬𝐭𝐚𝐫𝐭: 1. Having an intro, where we identify your request 2. Our team identifies specific Talent or Team for your request 3. We deeply research your request and outline unique collaboration terms 4. Gotoinc presents your unique proposal and negotiates it with You 5. We sign a contract 6. We kick off our ongoing collaboration 💻 𝐑𝐮𝐛𝐲: Ruby, Rails, Sinatra, Padrino, Grape, Sidekiq, Nginx, RSpec, Capybara, Rubocop, Capistrano, Unicorn, Puma, Elastic Search 🔧Databases: PostgreSQL, MySQL, SQLite3, Redis 📊 Web Servers: Apache, Nginx 💻JavaScript JavaScript, ES 6/7, React, Vue, Jasmine, Handlebars, JSX, SKIM 📈HTML/CSS HTML5, CSS3, SCSS, Bootstrap, HAML, SLIM 📡 VCS: Git (Github, Bitbucket) 🆙 If you are interested in discussing your project with me, make sure to click the 👉🟢INVITE🟢 button, and let’s talk 🤝 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐞𝐝 𝐒𝐤𝐢𝐥𝐥𝐬: Ruby on Rails Development, Full-stack Web Development, MVC Architecture and RESTful APIs, Front-end Technologies (HTML5, CSS3, JavaScript), Responsive and Mobile-first Design, Database Design and Implementation (PostgreSQL, MySQL), User Authentication and Authorization, Integration of Third-party APIs, Deployment to Cloud Platforms (Heroku, AWS), Test-driven Development (TDD), Agile Methodologies (Scrum, Kanban), Version Control Systems (Git, GitHub), Project Management and Collaboration Tools (Jira, Trello), Documentation and Code Commenting Last updated: March, 2026

Are you looking for a highly experienced Ruby on Rails Developer to build robust, scalable, and high-performance web applications or enhance your existing systems? With 8+ years of dedicated experience in the Ruby on Rails ecosystem, I specialize in transforming complex ideas into elegant, efficient, and user-friendly digital products. My expertise lies in crafting clean, maintainable code that drives business value. I'm passionate about developing secure, test-driven applications, optimizing performance, and seamlessly integrating with third-party services. Whether you need a brand-new application from scratch, a major feature implementation, API development, or performance tuning for your existing RoR project, I bring a proactive, results-oriented approach. What I bring to your project: - Full-Stack RoR Development: From database design and backend logic (Ruby, Rails) to frontend integration (JavaScript frameworks, HTML, CSS/Sass). - Scalability & Performance Optimization: Identifying bottlenecks, refactoring code, and implementing caching strategies to ensure your application performs under heavy load. - API Development & Integration: Building secure and efficient RESTful APIs for mobile apps or external services, and integrating third-party APIs (payment gateways, CRMs, analytics). - Database Management: Proficient in PostgreSQL and MySQL, with strong skills in schema design, query optimization, and data migration. - Code Quality & Maintainability: Adhering to best practices, TDD/BDD (RSpec), and continuous integration to deliver reliable and easy-to-maintain codebases. - Problem-Solving & Debugging: A knack for quickly diagnosing and resolving complex technical challenges. My Toolkit Includes: Languages: Ruby, JavaScript (ES6+), HTML5, CSS3 Frameworks: Ruby on Rails, React.js / Vue.js / Stimulus.js (for frontend integration) Databases: PostgreSQL, MySQL, Redis Testing: RSpec, Capybara, FactoryBot Tools & Platforms: Git, GitHub/GitLab, Heroku, AWS (basics), Docker, Sidekiq, Webpacker I pride myself on clear communication, meeting deadlines, and delivering exceptional work that exceeds client expectations. Let's discuss your project and see how my Ruby on Rails expertise can help you achieve your goals. Ready to build something great together? Feel free to invite me to your job or schedule a call.

🎖 Top-rated Shopify & Fullstack Developer with 3+ years of expertise in Shopify E-commerce Development, Shopify Plus, Custom App Development, and Ruby on Rails. 🎖 I specialize in building scalable, high-performance e-commerce platforms and web applications tailored to your business needs. 💡 Key Competencies: ✅ Shopify Expertise: 🌟Shopify Store Setup, Migration, and Maintenance 🌟Custom Shopify Theme Development & Liquid Coding 🌟Figma/XD/PSD to Shopify Conversion 🌟Shopify App Development (Public & Private APIs) 🌟Headless Commerce & API-Driven Solutions 🌟Shopify Plus Development & Customizations 🌟Klaviyo Email Flows & Marketing Automation 🌟Subscription Models & Product Bundles 🌟Page Speed Optimization & Conversion Rate Optimization (CRO) 🌟Shopify App Integrations (Pagefly, Shogun, Gempages) 🌟Custom Checkout & Payment Gateway Integration 🌟Shopify SEO & Google Merchant Setup ✅ Fullstack Development (Ruby on Rails): 🌟Ruby on Rails Application Development & Optimization 🌟Database Management: PostgreSQL, MySQL, MongoDB, SQLite 🌟Deployment: Heroku, AWS (EC2, S3, Route 53, SES, SQS, SNS) 🌟Redis Setup & Capistrano Deployment 🌟React JS, HTML5, CSS3, JavaScript, jQuery, AJAX 🌟Responsive Design with Bootstrap, Foundation, and Grid Frameworks 🌟API Integrations & Social Media Plugins 🌟Monitoring Tools: New Relic, MongoDB Monitoring ✅ E-commerce Solutions: 🌟Custom Shopify Apps & API Development 🌟Shopify Store Design & Development from Scratch 🌟Shopify Drop Shipping Setup (A to Z) 🌟Product Research & Bulk Uploads via CSV 🌟Inventory Optimization & Content Marketing 🌟High-Converting Landing Pages & Branded Product Pages 🌟Social Media Integration & Sales-Driven Strategies 💡 Why Choose Me? ✅ Proven Track Record: Delivered 5+ Shopify stores and 2+ Ruby on Rails applications. ✅ End-to-End Solutions: I handle every aspect of your project from design to deployment. ✅ Scalable & Secure: Build applications that grow with your business and protect your data. ✅ Client-Centric Approach: I prioritize clear communication, timely delivery, and exceeding expectations. ✅ Continuous Learning: Always updating my skills to stay ahead in the ever-evolving tech landscape. 💡 Technical Stack: 🌟Shopify: Liquid, HTML, CSS, JavaScript, Shopify APIs, Theme Customization 🌟Ruby on Rails: ERB, HAML, Slim, PostgreSQL, MySQL, MongoDB 🌟Frontend: React JS, HTML5, CSS3, JavaScript, jQuery, Bootstrap 🌟DevOps: AWS, Heroku, Capistrano, Redis, GitHub 🌟Tools: Figma, Adobe XD, Photoshop, Pagefly, Shogun, Gempages 💡 Recent Projects: ✅ Developed a custom Shopify app for subscription-based services, increasing client revenue by 30%. ✅ Migrated a multi-vendor ecommerce platform to Shopify Plus, improving site speed by 40%. ✅ Built a Ruby on Rails SaaS application with AWS deployment, handling 10,000+ daily users. ✅ Designed and developed high-converting Shopify landing pages, boosting conversions by 25%. 💡 Let’s Work Together! Whether you need a stunning Shopify store, a custom app, or a scalable Ruby on Rails application, I’m here to bring your vision to life. Let’s discuss your project and create something extraordinary! Ecommerce Developer | Shopify Expert | Fullstack Developer | Ruby on Rails Developer | Custom Shopify Apps | Shopify Theme Development | Shopify Plus Developer | Headless Commerce Developer | API Integration Specialist | Web Application Developer | Responsive Web Design | Conversion Rate Optimization (CRO) | Page Speed Optimization | Shopify SEO Specialist | Shopify Migration Expert | Custom Web Development | Shopify-Specific | Liquid Coding | Shopify Store Setup | |Shopify App Development | Figma to Shopify Conversion | Shopify Custom Checkout | Shopify Payment Gateway Integration | Klaviyo Email Marketing | Shopify Product Bundles | Shopify Subscription Models | Shopify Landing Pages | Shopify Page Builders | (Pagefly, Shogun, Gempages) | Shopify Dropshipping Setup | Shopify Inventory Management | Shopify Google Merchant Integration | Shopify Sales Funnel Optimization | Shopify Store Design | Shopify Theme Customization | Shopify Plus Customization | Shopify API Development | Ruby on Rails Developer | Heroku Deployment | AWS Cloud Solutions | PostgreSQL Database Management | MongoDB Integration | React JS Development | JavaScript Developer | HTML5/CSS3 Developer | Bootstrap Framework | Responsive Web Design | API Integration | Redis Setup | Capistrano Deployment | New Relic Monitoring | AWS EC2, S3, Route 53 | SaaS Application Development | Scalable Web Applications | Backend Development | Frontend Development

Top Rated | 25+ Clients Served | 10 Years Experienced "Chatwoot Open Source Contributor" You’ve got a product to build but no time to babysit a developer. You need someone who takes ownership, moves fast, and delivers code that just works. Clients often say I “work like a tech co-founder,” not just a freelancer. My approach: clean, testable code, rapid iterations, and clear, proactive communication. I help startups and growing companies build fast, secure, and scalable web apps with a product-first mindset. Core Expertise: ✔️ Ruby on Rails ✔️ React / Next.js frontends ✔️ Scalable SaaS architectures (incl. AWS) ✔️ API development & integrations ✔️ AI / OpenAI-powered features ✔️ Agile workflows (Jira, Git, Trello) I can help you with: - Building an MVP - Migrating legacy systems - Scaling infrastructure for growth Why startups love working with me: - I work like a partner, not just a dev - I move fast without breaking things - I communicate proactively I deliver clean, maintainable code that lasts Let’s turn your idea into a working product and build something that lasts.

I am a Ruby developer with 9+ years experience who loves to make a good job, and finish it on time. I like to follow good practices and expand the knowledge whenever I can. I have experience with Unix like operating systems, Rails, Postgresql, Mysql, TDD (Rspec, Capybara), Javascript, HTML & CSS preprocessors, Redis, Elasticsearch, scraping among others.

🥇 Top 1% - Upwork Ruby on Rails & AI Solutions ✅ Expert in AI LLM OpenAI GPT ✅ Senior developer (10+ years experience) ✅ 50 completed projects & 9000 hours on UpWork! 🇺🇸 Work in PST/PDT time zone. Hi, 👋 I'm Alex! I've worked with dozens of Ruby on Rails applications, from small startups to huge production apps with millions of users. Included: SAAS, IAAS, marketplace, search engines etc. Also, I am an OSS contributor, maintaining RubyAI, kredis, cookies_eu, and other gems in the Ruby ecosystem. - Ruby and Ruby on Rails - JavaScript, React - Stimulus, Turbo, Hotwired - HTML, HAML, and HTML5 - PostgreSQL and MySQL for backend databases - Version control with Git and GitHub - SAAS, IAAS, eCommerce applications. - UX/design, SEO - DevOps (Hetzner, DigitalOcean etc)

I’m a Senior Ruby on Rails Engineer and CTO-level System Architect with over 10 years of experience designing, scaling, and delivering complex web platforms end-to-end. I specialise in architecting secure, high-availability systems using Ruby on Rails as the core backend framework, applying domain-driven design, modular service boundaries, caching strategies, and event-driven workflows to ensure long-term maintainability and performance. I’ve built everything from monoliths with clean domain separation to microservice ecosystems connected through message queues and API gateways. My frontend engineering experience includes Hotwire (Turbo & Stimulus) for real-time Rails-native interactivity and React.js for component-driven UIs where scalability and state management matter. On the data side, I have deep expertise in PostgreSQL, designing normalised schemas, advanced indexing, partitioning strategies, and query optimisation to support high-volume transactions. I frequently leverage Redis for distributed caching, job orchestration, rate limiting, and session management. As a system architect, I design and deploy infrastructure across AWS, GCP, and Azure, using services like EC2, ECS/EKS, S3, Load Balancers, Cloud SQL/RDS, Lambdas, and Cloud Functions to build resilient, cost-efficient systems. I implement fully automated CI/CD pipelines using GitHub Actions, GitLab CI, or CircleCI to enforce code quality, testing, security scans, and blue/green or rolling deployments. I rely on RSpec, Minitest, Capybara, and Cypress to maintain strict TDD/BDD practices, ensuring stable, predictable releases. My architecture approach prioritises observability, structured logging, distributed tracing, metrics dashboards, and automated alerts, so systems remain transparent and easy to operate at scale. Having worked as a CTO and engineering lead, I guide teams through architecture decisions, code reviews, cloud infrastructure planning, sprint processes, and long-term technical strategy. 🔥 Core Technical Expertise 💡Backend: Ruby, Ruby on Rails, Sinatra, Sidekiq, GraphQL, REST APIs 💡Frontend: HTML, CSS, Hotwire (Turbo & Stimulus), React.js, ES6, modular UI design, JS (ES6/CoffeeScript) 💡Databases: PostgreSQL (expert), MySQL, Redis, MongoDB 💡Cloud & DevOps: AWS (EC2, S3, RDS, Lambda), GCP, Azure, Docker, Kubernetes, Heroku, Digital Ocean 💡CI/CD: GitHub Actions, GitLab CI, CircleCI, automated deployments 💡Architecture: Microservices, event-driven systems, domain-driven design, caching, performance tuning 💡Testing: RSpec, Minitest, Capybara, Cypress, full TDD/BDD workflows 🔥 Other: 💡Version control system: Git 💡OS: Linux, Mac 💡Task managers: Basecamp, Trello, Asana, Pivotal, JIRA, etc. 💡Chats/Calls: Discord, Stride, Slack, Zoom, or any others. If you’re looking for a senior engineer and architect who understands not just how to write code, but how to design entire systems that last, let’s connect. I bring strong engineering leadership, clear communication, and a product-oriented mindset that aligns technical decisions with business goals.

🏆 Top-Rated Ruby on Rails Developer | Shopify App Developer with 10+ years of experience, 2500+ Upwork hours, and 40+ successful projects delivered. From AI-powered Shopify apps to Ruby on Rails backends integrated with large language models, I turn complex ideas into clean, scalable, production-ready systems. I focus on building scalable, maintainable systems with clean architecture and reliable performance. If you're looking to add AI capabilities to your product or build a powerful backend with Ruby on Rails, I can help you design and implement the right architecture. 🤝 Why Clients Choose Me ✅ 10+ years shipping production code — I've seen what works and what breaks ✅ Clean architecture focus — Your project won't become technical debt ✅ Proactive communication — You'll never wonder "what's happening?" ✅ Long-term thinking — I build for today and scale for tomorrow ✅ Business outcome focus — I care about your metrics, not just my code 🛒 Shopify App Development Specializing in modern Shopify apps and store solutions: ✅ Public Shopify App Development (Shopify App Store, OAuth, Billing API) ✅ Custom Shopify Apps for specific business workflows ✅ Shopify Store Development & Theme Customization ✅ AI-powered Shopify features (product descriptions, support automation) ✅ Shopify GraphQL & REST API integrations 💎 Ruby on Rails Web Development Full-cycle Ruby on Rails development for scalable platforms. ✅ SaaS platforms & custom web applications ✅ REST API & GraphQL development ✅ Database design (PostgreSQL, MySQL, MongoDB) ✅ Background jobs (Sidekiq, Redis) ✅ Payment integrations (Stripe, PayPal) 🤖 AI Development • AI chatbots & assistants (Claude / ChatGPT) • AI content generation • AI-powered search & recommendations • Automated workflows using LLMs • AI integrations inside SaaS products ⚙️ Deployment & Tools AWS EC2 • DigitalOcean • Heroku • Cloud66 GitHub • GitLab • Jira • Trello • Slack 💬 Need help building a Shopify app, Ruby on Rails platform, or AI-powered product? Send me a message and let's discuss how we can build your next AI-powered product.

TOP RATED ✅ | 100% Job Success ✅ With over 6 years of hands-on experience in Ruby on Rails(ROR), modern JavaScript frameworks like ReactJS, and cross-platform mobile development with React Native. My work has directly contributed to increasing end-user engagement by 30–40% and has helped clients grow their profits exponentially through performance-driven development and user-focused design. I've built and scaled a wide range of web and mobile applications; many for fast-growing, venture-backed startups. Whether building from scratch or optimizing existing platforms, I bring a product-oriented mindset and a proven track record of delivering high-impact results. In recent years, I've embraced an AI-first engineering approach, leveraging tools like OpenAI, Anthropic, and Gemini not just as integrations, but as force multipliers in the development process itself. I work daily with Claude Code, OpenAI Codex, Cursor, and Lovable to compress weeks of work into days; one recent example is a 6,000+ line architectural refactor I shipped in two days using Claude Code, without compromising on code quality or test coverage. This is what allows me to help clients validate ideas faster, ship features sooner, and ultimately land more business. I've practiced all the software engineering principles and technologies needed to create reliable and maintainable production-ready web and mobile applications from scratch. 🚀 You have an idea for your MVP web or mobile app? Let's talk and give me a trial to help you to build it. 🐛 Do you have a bug that needs to be fixed ASAP? Let me take care of it, and if I can't resolve it, there will be NO CHARGE. 🌟 You want to scrape a site for analysis and comparison? 📱 Want a cross-platform mobile app built with React Native that ships to both iOS and Android from a single codebase? 🤖 Want to build AI-powered features into your product? I've shipped production AI features for real clients and know how to do it fast. 🕹️ Need an extra main player in your team to add new features? I'm here to help you. Primary expertise is below: Programming language: Ruby, JavaScript, TypeScript, Python, C, C++, Shell script Ruby-Based frameworks: Ruby on Rails(v5, 6, 7, 8), Sinatra Ruby gems: ActiveAdmin/Avo, Resque, ruby-llm, solid-queue, RSpec, Kamal Database: PostgreSQL, MySQL, MongoDB, Redis. AI Tools & Integrations: OpenAI GPT-4o, Anthropic Claude, Google Gemini, AI-assisted development workflows (compound engineering) AI-Assisted Dev Tools: Claude Code, OpenAI Codex, Cursor, Cline, Lovable — used daily to ship faster without cutting corners on quality Mobile: React Native (iOS + Android), Expo Other Frameworks/Tools: ReactJS, Next.js, Django, Shopify, Elastic search, Beautiful Soup, JIRA, Heroku, AWS, Trello. I provide the following services: - Full Stack Web and Mobile app development, optimization, and third-party integrations - Cross-platform mobile app development using React Native and Expo for iOS and Android - Development of API clients, bots, various tools, and libraries - Rapid AI-assisted prototyping using compound engineering workflows with Claude Code, Codex, and Lovable to ship MVPs and new features 3–5x faster than traditional timelines - Create components consistent with every other application layer - Set up and deploy development (staging), QA, and production environments. - Able to resolve issues in the application of any layer, allowing a project to not seek or wait for another narrowly specialized developer. In other words, I can maximize overall project development performance by having enough horizon and insight to think of it systematically. - Web Scraping for gathering, analyzing, and utilizing data to gain a competitive advantage I'm ready for any demo or evaluation work based on our next steps. 🚀 Let's collaborate and create something truly transformative! ✨

I’m a software developer with 5+ years of experience working for several kinds of industries. I currently work with Ruby on Rails Stack and related technologies building business web applications or products.