Denys K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

✔ Accelerating Business Growth through Strategic Development ✔ For over 5 years, I’ve been helping businesses streamline operations and achieve their goals by developing innovative web and mobile applications. My expertise in SaaS and AI integration delivers solutions that are technically robust and strategically aligned with business needs. Key Skills: - React, React Native - AI App Development (GPT-4, Claude) - Node.js, API Development - SaaS Platforms Deliver: - Full-cycle Development: From idea to deployment. - Proactive Solutions: I suggest improvements, not just execute tasks. - Clear Communication: Fast response and transparent updates. - Scalable Code: Built to grow with your business. My focus is on solving real business challenges through intelligent tech solutions. You’ve made it to the end of my profile - looks like I’ve caught your interest. Just send me an invite, and let’s bring your project to life! KEYWORDS JavaScript, React, Web Development, Web Application, API Integration, CSS, HTML, React.js, Amazon Web Services, PHP, Node.js, Next.js, Web Design, MongoDB, Laravel, RESTful API, MySQL, Tailwind CSS, SaaS, Redux, Figma, Express.js, HTML5, Landing Page, PostgreSQL, React Native, TypeScript, Nest.js, Node.js framework, jQuery, Responsive Design, Vue.js, Full-stack Development, AI Development, Backend Development, CSS3, Database Architecture, eCommerce, Heroku, Material Design, System Architecture, T3 Stack, SQL, Chart.js, D3.js, Docker, DevOps, Git, GitLab, Firebase, AWS Amplify, Google Cloud Platform, Prisma, Real-time Database, Cross Browser & Device Compatibility, Telegram API, Telegram Chatbot Development, Bot Development, Push Notifications, Map Integration, User Authentication, User Profile Creation, Social Media Integration, Chat & Messaging, Python Scripts, Scripting, Web Scraping, Data Scraping, Data Extraction, Automation, AI Chatbot, AI Bot, Online Chat Support, Community Management, Game Development, Game Design, RESTful Architecture, SEO, Prisma, iOS Development, Android App, Mobile App, Project Management, Prototype Design, Prisma, Prisma ORM, Security, Heroku, Docker, Firebase