Serhii C.

Laravel Developer and System Architect with 20+ years of engineering mastery, 150+ completed projects, and proven expertise in building scalable high-load systems, SaaS, and AI-driven platforms that handle heavy production traffic reliably. 🚀⚡ I turn complex operational workflows into fast, secure, and high-performance web applications. As a seasoned Laravel Developer, I take full technical ownership of every product: from architectural database optimization to seamless AI integration and production server hardening. ⚙️🤖 📊 METRICS AND TECHNICAL EXPERIENCE 🏆 150+ projects developed and successfully launched throughout my career. 🔄 55+ Core PHP legacy projects audited, refactored, and completely rewritten in modern Laravel. 🚀 33+ Laravel and modern PHP applications built from scratch and scaled for growth. ⚡ 20+ Vue.js projects developed, including high-load dashboards, reactive calculators, and B2B admin panels. 🤖 20+ AI and LLM solutions integrated into production, including AI agents, RAG search engines, and automated data pipelines. 🔗 40+ REST API endpoints designed for mobile apps, CRM platforms, and external services. 🗄️ 30+ MySQL and PostgreSQL databases optimized for high-traffic environments. ⚡ 40% database response time reduction achieved through SQL query optimization, indexing, and asynchronous Redis caching. 🎯 99.9% uptime delivered for services with thousands of daily active users and active processing queues. 📈 35% faster release cycles achieved by implementing CI/CD pipelines without downtime. 🛠️ HOW I CAN HELP YOU 🧱 Complex Laravel and SaaS Development: Designing flexible system architectures, role-based access control, microservices, and scalable business logic. 🤖 Artificial Intelligence (AI) and Automation: Implementing LLMs (OpenAI API, Claude), developing autonomous AI agents, RAG systems for intelligent document search, and automating customer request workflows. 🧮 Custom B2B Calculators and Dashboards: Building custom pricing engines for manufacturing, processing vector file uploads, and creating intuitive admin panels for sales management. 🔌 REST APIs and External Integrations: Building secure API endpoints and integrating payment gateways, CRM, ERP, and third-party REST services. 🚑 Optimization and Legacy Rescue: Auditing unstable code, fixing performance bottlenecks, hardening security, refactoring Core PHP, and modernizing legacy systems. 📋 MY DEVELOPMENT APPROACH AND PROCESS 📐 Requirements plus Schema Design: Before writing code, I analyze the business objective and design a scalable database schema following SOLID, DRY, and KISS principles. 💻 Development plus AI Integration: I break the project into clear milestones, build clean backend code, and integrate modern automation and AI tools. 🧪 QA plus Performance Tuning: I conduct database stress testing, configure background queues (Laravel Queues/Redis), and optimize page load speeds. 🛠️ Deployment plus Server Setup: I deploy applications to Ubuntu, Nginx, and Docker environments, ensuring robust security (SSL, firewall rules) and full technical documentation. If you need a reliable Laravel Developer who combines deep system architecture expertise with a strong understanding of business goals, let's discuss your project! 🤝