Kostiantyn V.

🏆 I am a Senior Full Stack Developer with 5+ years of experience delivering scalable, secure, and high-performance web applications. 💡 As a Senior Full Stack Developer I specialize in Laravel, PHP, Vue.js, MySQL, JavaScript, and full-stack architecture, building production-ready systems for startups, SaaS companies, and enterprise clients. Successfully delivered 10+ web applications across different industries, including SaaS platforms, CRM systems, ERP solutions, marketplaces, booking systems, fintech dashboards, education platforms, and enterprise business software. They all are delivered by me as a Senior Full Stack Developer | Laravel, PHP, Vue.js. 🚀 Full Stack Development Expertise As a Full Stack Developer, I handle both frontend and backend development. I build complete systems using Laravel, PHP, Vue.js, JavaScript, HTML5, CSS3, Tailwind CSS, and Bootstrap as a full stack developer. I create: SaaS applications with scalable architecture CRM and ERP systems for business automation Marketplace platforms with multi-vendor logic Booking and scheduling systems Enterprise-grade dashboards and admin panels ⚙️ Backend Development (Laravel, PHP, CodeIgniter) As a Laravel Developer and PHP Developer, I design powerful backend systems with clean architecture and optimized performance. I work with: Laravel, PHP, CodeIgniter REST API development and API integrations Authentication systems (JWT, OAuth) Payment gateways (Stripe, PayPal) Microservices and modular backend design Senior Full Stack Developer | Laravel, PHP, Vue.js. I have built and optimized 30+ backend systems including SaaS APIs, CRM backends, and enterprise platforms. 🎨 Frontend Development (Vue.js, JavaScript) As a Full Stack Vue.js Developer and JavaScript Developer, I build modern, responsive, and interactive user interfaces. I specialize in: Vue.js dynamic applications JavaScript-based UI systems Responsive design using Tailwind CSS & Bootstrap Admin dashboards and SaaS UI panels Component-based frontend architecture 🗄️ Database & Performance Optimization As a part of my full stack development services, I work as a MySQL, PostgreSQL, and MariaDB Developer, focusing on performance and scalability. I handle: Database design and architecture Query optimization and indexing Large-scale data handling Performance tuning for high-traffic applications 🔌 API & Integration Development as a Senior Full Stack Developer | Laravel, PHP, Vue.js I am an experienced API Developer and Laravel API Specialist, building and integrating scalable APIs. As a full stack developer I deliver: REST API development Third-party API integrations SaaS API architecture Secure backend communication systems I also leverage modern AI-assisted development tools to speed up delivery, improve code quality, and streamline complex development workflows. Strong experience using Claude Code and Cursor for AI-powered coding, debugging, refactoring, documentation generation, rapid prototyping, API integration, and architecture planning. 🏢 Industry Experience as a Senior Full Stack Developer | Laravel, PHP, Vue.js I have worked across multiple domains as a senior full stack, Laravel, PHP, Vue.js developer: SaaS platforms (subscription-based systems) CRM & ERP systems for business automation Fintech applications and dashboards Education platforms and e-learning systems Marketplace and ecommerce solutions Enterprise-level web applications ⚡ My Key Skills Summary as a Senior Full Stack Developer | Laravel, PHP, Vue.js: Laravel Developer, Senior PHP Developer, CodeIgniter Developer, Full Stack Developer, Backend Developer, Vue.js Developer, JavaScript Developer, MySQL Developer, PostgreSQL Developer, MariaDB Developer, REST API Developer, Web Application Developer.