I am a senior developer and architect with over 14 years of experience building expandable applications, designing complex databases, and fixing deep architectural issues across the entire stack. While my primary focus is backend architecture and data integrity, I have a deep understanding of frontend systems like React.js and Next.js. Along with API development, I architect the entire ecosystem so that client-side frameworks and backend services connect properly, resulting in faster performance and clean data flow. If you are dealing with a complex application, a messy relational database with dozens of tables, or a legacy codebase that needs to improve, I can step in and take ownership of the technical execution. Where I add the most value: System Architecture & Databases: I specialize in structured and high-integrity relational schemas (MySQL/PostgreSQL) built for long-term maintainability. Backend & APIs: Writing clean, optimized code and secure RESTful APIs using PHP (Laravel) and Node.js. Full-Stack Alignment: Bridging the gap between server-side architecture and modern frontend applications (React/Next.js) to keep data delivery light and responsive. Advanced Bug Fixing & Troubleshooting: I specialize in tracking down and resolving complex, deep-seated bugs - whether it’s fixing broken application logic, debugging API failures, resolving data inconsistencies, or diagnosing stubborn performance bottlenecks. Modern DevOps: Containerizing setups with Docker and Docker Compose so that local environments and production (Ubuntu, DigitalOcean, AWS) match perfectly. Core Stack: PHP (Laravel), Node.js, JavaScript, TypeScript, React.js, Next.js, MySQL, PostgreSQL, Magento, Docker, Git. I don’t write over code to solve simple problems, and I don't use quick patches for bugs that cause bigger problems later. I try to stick to SOLID principles and ensure the application is reliable and easy to maintain. I work as a full-time independent professional (40 hours/week), follow structured communication and strict respect for project deadlines. If you have a complex project, a messy codebase, or an enterprise system that needs smooth execution, let’s connect and talk about your requirements. Best regards, Sudipto Karmoker