Ekaterina — Web Development freelancer in Kyiv

I’m Kate, a Senior Full Stack developer with 6+ years of experience building web and mobile applications for startups, product companies, and growing businesses. As a Full Stack developer, I work across both frontend and backend development, helping clients build products from scratch, improve existing systems, and support long-term growth. My main stack includes React, Next.js, TypeScript, JavaScript, React Native, Python, PHP, Laravel, and Angular. As a Full Stack developer, I build responsive user interfaces, develop backend services, create APIs, connect databases, and deliver features that support real business needs. I also work with Tailwind CSS, Material UI, MUI, SCSS, CSS, Webpack, Vite, Gulp, and modern development workflows. I have strong experience as a Full Stack developer building SaaS platforms, dashboards, admin panels, marketplaces, internal tools, booking systems, eCommerce solutions, and mobile apps. My work as a Full Stack developer includes frontend architecture, backend logic, third-party integrations, authentication flows, payment systems, and performance improvements. I focus on writing clean, readable, and maintainable code that supports long-term product growth. As a Full Stack developer, I work with MongoDB, PostgreSQL, MySQL, Supabase, Firebase \u002F Firestore, and DynamoDB. I can design and improve data structures, build scalable backend systems, and choose the right technical approach for each product. A Full Stack developer should understand how all parts of a system work together, and that is the approach I bring to every project. I also have solid experience as a Full Stack developer with SSR and PWA development, helping applications load faster, perform better, and deliver a smoother user experience. I build SEO-friendly Next.js applications, mobile solutions with React Native, and modern web products that work well across devices and screen sizes. Beyond coding, I contribute as a Full Stack developer who understands team processes and product delivery. I have experience with code reviews, Git workflows, CI\u002FCD pipelines, architecture planning, and development team support. In some projects, I work only as a Full Stack developer. In others, I also help with technical leadership, project planning, and improving development workflows. Clients hire me as a Full Stack developer when they need someone who can handle both frontend and backend tasks without losing sight of the product itself. I can join a team as a Full Stack developer, take ownership of a feature, support scaling efforts, or help stabilize an existing project. I can also work as a Full Stack developer on MVP builds, refactoring tasks, feature expansion, bug fixing, and long-term maintenance. My services as a Full Stack developer include React.js development, Next.js development, Laravel backend development, TypeScript applications, React Native mobile apps, API integration, database design, SSR, PWA, component libraries, design system implementation, HTML\u002FCSS fixes, performance optimization, and ongoing product support. If you need a Full Stack developer who can build, improve, and support modern digital products, I’m ready to help. I work as a Full Stack developer with attention to detail, clear communication, and a practical approach to problem-solving. Whether you need a Full Stack developer for a new product, ongoing development, or to strengthen your current team, I can provide reliable support and solid technical execution. Best regards, Kate