Alexey C.

With over 15 years of hands-on experience in full-stack development, I specialize in building, scaling, and optimizing web and mobile applications using a wide range of modern frameworks and technologies, including Ruby on Rails, Node.js, React, Vue.js, and Angular. As part of the Roobykon Software team, I deliver full-cycle software engineering services—from concept and design to launch, modernization, and continuous improvement. I am passionate about creating robust, scalable, and user-friendly solutions that align with your business goals. My approach follows Agile Software Development methodologies, ensuring transparent communication, iterative progress, and high-quality deliverables. I also bring strong skills in web design, software debugging, and performance optimization to every project. 🏆 Area of expertise: ➤ E‑commerce & Marketplaces – Multi‑vendor platforms, B2B/B2C marketplaces, rental systems, and Sharetribe platforms, Shopify stores (using Liquid, Ruby on Rails, React, Node.js, and WordPress). ➤ Payment gateways, escrow systems, and secure financial applications (built with Ruby, Node.js, PostgreSQL, and MongoDB). ➤ CRM Systems – Tailored customer relationship management platforms (using React, Vue.js, Redux, and MySQL). ➤ Logistics & Transportation – Delivery marketplaces, warehousing, and fleet management (powered by Node.js, Express.js, PostgreSQL, and AWS). ➤ Marketplace Development (B2B, B2C, peer-to-peer, product, service, and rental-based platforms using Sharetribe / and custom-built solutions) ➤ Travel & Tourism – Booking platforms for accommodations, tours, and car/boat rentals (built with React Native, Ruby on Rails, and GraphQL). ➤ Real Estate & Construction – Property listing marketplaces, contractor bidding platforms (using Angular, TypeScript, and MongoDB). ➤ Healthcare & Mental Health – Telemedicine, therapy service platforms (built with React, Node.js, PostgreSQL, and Firebase). ➤ Entertainment & Social Networking – Event booking, ticketing, and social interaction platforms (using Vue.js, jQuery, Bootstrap, and REST APIs). ➤ Industrial (B2B marketplaces for industrial goods and services) ➤ Marketplaces for hospitality services, catering, and restaurant supplies ➤ Marketing & Advertising – Ad placement and influencer marketing platforms (leveraging Python, Django, and MongoDB). ➤ Management (resource management platforms for HR, procurement, and project collaboration) 👉 Technology stack: Frontend: ✔️ JavaScript (ES6+) | TypeScript | React (React.js, ReactJS) | React Native | Vue.js | Angular | Redux | jQuery ✔️ HTML5 | CSS3 | Tailwind CSS | Bootstrap | Liquid | Web Design & Responsive Layouts Backend: ✔️ Ruby | Ruby on Rails | Node.js (NodeJS, Express.js) | Python | PHP | REST API | GraphQL ✔️ Agile Software Development | Software Debugging | Git | Performance Optimization Databases: ✔️ PostgreSQL | MySQL | MongoDB | DynamoDB | Firebase | MSSQL | SQL CMS & E‑commerce: ✔️ WordPress | Shopify | Liquid templating | Sharetribe | Medusa.js Cloud & DevOps: ✔️ AWS (EC2, S3, Lambda) | Digital Ocean | Firebase Hosting | Git version control ⭐ Shopify Services: ➤ Custom Shopify Store Development: from idea to launch, I build Shopify stores that are tailored to your specific needs; ➤ Shopify Store Redesign: I'm ready to give your existing store a fresh, modern look that enhances user experience and boosts conversions; ➤ Theme Customization & Development: whether you need a new unique theme or want to enhance an existing one, I've got you covered; ➤ Website Audit & Bug Troubleshooting: I perform a detailed audit and identify issues efficiently to ensure your store runs smoothly; ➤ Checkout Process Customization in Shopify Plus: I'm ready to tailor the checkout process to fit your unique business needs; ➤ Page Speed Optimization: ensuring fast load times for a better user experience and improved SEO. Why Work With Me? I combine deep technical expertise with a consultative approach to help you choose the right stack and architecture for your project. Whether you need to build a minimum viable product (MVP), modernize a legacy system, or scale an existing platform, I deliver clean, maintainable code and transparent collaboration. Let’s discuss your idea and turn it into a successful digital product!