Kyrylo S.

Full Stack Developer | React Developer | Front End Developer | Node.js

🚀 Is your MVP taking months instead of weeks? 💡 Tired of hiring a Front End Developer who doesn't understand your business and just writes code? I'm a Front End Developer helping startup founders launch production-ready MVPs in 𝟮–𝟯 𝘄𝗲𝗲𝗸𝘀, using a clear, 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀-𝗼𝗿𝗶𝗲𝗻𝘁𝗲𝗱 development approach. As an Upwork Expert-Vetted React Front End Developer with a Master's in Computer Science and 7+ years of experience building scalable SaaS platforms, dashboards, and custom APIs, I translate complex tech into clear product decisions that drive results. Over those years as a Front End Developer I've worked with startups from idea stage to Series B, as well as enterprise clients like 𝗦𝗮𝗺𝘀𝘂𝗻𝗴, 𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝘀, and 𝗕𝗲𝗻𝘁𝗹𝗲𝘆 - always focusing on fast delivery, clean architecture, and measurable outcomes. 💬 Here's what founders say after working with me as their Front End Developer: "𝘎𝘳𝘦𝘢𝘵 𝘦𝘹𝘱𝘦𝘳𝘪𝘦𝘯𝘤𝘦 𝘸𝘰𝘳𝘬𝘪𝘯𝘨 𝘸𝘪𝘵𝘩 𝘒𝘺𝘳𝘺𝘭𝘰! 𝘏𝘦 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘢 𝘩𝘪𝘨𝘩-𝘲𝘶𝘢𝘭𝘪𝘵𝘺 𝘙𝘦𝘢𝘤𝘵 + 𝘛𝘺𝘱𝘦𝘚𝘤𝘳𝘪𝘱𝘵 𝘧𝘳𝘰𝘯𝘵𝘦𝘯𝘥 𝘴𝘵𝘺𝘭𝘦𝘥 𝘸𝘪𝘵𝘩 𝘛𝘢𝘪𝘭𝘸𝘪𝘯𝘥 𝘊𝘚𝘚, 𝘣𝘶𝘪𝘭𝘵 𝘸𝘪𝘵𝘩 𝘤𝘭𝘦𝘢𝘯 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘴𝘵𝘳𝘰𝘯𝘨 𝘢𝘵𝘵𝘦𝘯𝘵𝘪𝘰𝘯 𝘵𝘰 𝘥𝘦𝘵𝘢𝘪𝘭. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩 𝘢𝘯𝘥 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘺 𝘰𝘯 𝘵𝘪𝘮𝘦 - 𝘩𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥!" "𝘒𝘺𝘳𝘺𝘭𝘰 𝘥𝘦𝘭𝘪𝘷𝘦𝘳𝘦𝘥 𝘤𝘭𝘦𝘢𝘯, 𝘴𝘤𝘢𝘭𝘢𝘣𝘭𝘦 𝘤𝘰𝘥𝘦 𝘢𝘯𝘥 𝘩𝘢𝘯𝘥𝘭𝘦𝘥 𝘧𝘳𝘰𝘯𝘵-𝘦𝘯𝘥 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵 𝘸𝘪𝘵𝘩 𝘱𝘳𝘦𝘤𝘪𝘴𝘪𝘰𝘯. 𝘊𝘰𝘮𝘮𝘶𝘯𝘪𝘤𝘢𝘵𝘪𝘰𝘯 𝘸𝘢𝘴 𝘴𝘮𝘰𝘰𝘵𝘩, 𝘢𝘯𝘥 𝘩𝘦 𝘸𝘢𝘴 𝘱𝘳𝘰𝘢𝘤𝘵𝘪𝘷𝘦 𝘪𝘯 𝘴𝘰𝘭𝘷𝘪𝘯𝘨 𝘵𝘦𝘤𝘩𝘯𝘪𝘤𝘢𝘭 𝘤𝘩𝘢𝘭𝘭𝘦𝘯𝘨𝘦𝘴. 𝘏𝘪𝘨𝘩𝘭𝘺 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥𝘦𝘥 𝘧𝘰𝘳 𝘸𝘦𝘣 𝘥𝘦𝘷𝘦𝘭𝘰𝘱𝘮𝘦𝘯𝘵, 𝘈𝘗𝘐 𝘪𝘯𝘵𝘦𝘨𝘳𝘢𝘵𝘪𝘰𝘯, 𝘢𝘯𝘥 𝘱𝘦𝘳𝘧𝘰𝘳𝘮𝘢𝘯𝘤𝘦-𝘧𝘰𝘤𝘶𝘴𝘦𝘥 𝘦𝘯𝘨𝘪𝘯𝘦𝘦𝘳𝘪𝘯𝘨 𝘱𝘳𝘰𝘫𝘦𝘤𝘵𝘴." "𝘏𝘢𝘱𝘱𝘺 𝘸𝘪𝘵𝘩 𝘴𝘱𝘦𝘦𝘥 𝘢𝘯𝘥 𝘲𝘶𝘢𝘭𝘪𝘵𝘺!" Why founders keep me as their long-term Front End Developer: 🎯 Business-first mindset - a Front End Developer who understands your priorities and aligns tech decisions with them ⚙️ Rapid MVP execution - from concept to launch in weeks, not months 🧩 Front End ownership - a senior Front End Developer handling React, Next.js, API integrations, Tailwind, MUI and scalable architectures 🧩 Full Stack ownership - MERN, Express.js, Node.js, MongoDB 🧠 Strategic guidance - more than a Front End Developer: I help you define what truly matters for your first release 📌 Typical projects I take on as a Front End Developer: SaaS dashboards and admin panels - React Front End Developer work with complex state and data-heavy UI MVPs from Figma to production - a Front End Developer who ships, not just prototypes Custom API integrations and internal tools for growing teams Frontend rescue - stepping in as the new Front End Developer on an existing codebase I don't take on last-minute fixes or e-commerce stores - as a Front End Developer I focus on SaaS and MVP projects where clear product thinking makes the difference. If you're a founder looking for a reliable Front End Developer who speaks your language and delivers predictably - let's build something great together. 🛠️ Tech Stack & Tools: Languages & Libraries: React, React.js, Node.js, JavaScript, ReactJS TypeScript, ReactJS NodeJS, Python, PHP, React Native, NextJS, MERN Stack Styling: Material UI, Tailwind CSS, MUI React, custom SCSS / CSS Build Tools: Webpack, Vite, NPM UI/UX: Figma, Frontend Design tools for pixel-perfect visuals Visualization: Leaflet, maps & data-driven charts Databases: MongoDB, PostgreSQL, MySQL, Firebase State Management: Redux, Zustand, RTK Query Cross-browser / cross-platform manual testing