Manik K.

Senior Full-Stack Developer | Backend Engineer | Cloud & DevOps | 15+ Years Experience I’m a dedicated **Senior Full-Stack Developer, Backend Engineer, and Cloud/DevOps Specialist with 15+ years of hands-on experience** building reliable, scalable, secure, and high-performance web applications, business platforms, APIs, and cloud-based systems. Over the years, I’ve worked with startups, agencies, entrepreneurs, and businesses worldwide, helping transform complex ideas and business requirements into practical technology solutions. I don’t just focus on writing code—I focus on understanding the business problem, designing the right architecture, building maintainable software, and ensuring the solution can grow with the business. My experience covers the complete development lifecycle, from **requirement analysis, architecture, database design, development, API integration, testing, deployment, monitoring, and ongoing support**. 🚀 Backend & Full-Stack Development My core backend expertise includes **PHP, Laravel, CodeIgniter, Node.js, and Golang (Go)**. I build REST APIs, business applications, SaaS platforms, CRM systems, real-time applications, automation platforms, dashboards, and custom enterprise solutions. I also work with modern frontend technologies including **React, Next.js, TypeScript, JavaScript, HTML5, CSS3, jQuery, Ajax, and Tailwind CSS**, allowing me to work across the complete application stack. 🏗️ Architecture & Databases I have extensive experience designing scalable application architectures and database structures using **MySQL and PostgreSQL**. My database expertise includes schema design, relationships, migrations, indexing, query optimisation, data integrity, reporting, performance tuning, and handling large datasets. I believe good architecture should be practical—not unnecessarily complicated. I choose technologies based on the actual business requirements, scalability needs, budget, and long-term maintenance. ☁️ Cloud, DevOps & Infrastructure My experience goes beyond application development into modern cloud and infrastructure engineering. I work with: * **Docker & Docker Compose** * **Kubernetes** * **AWS** * **OpenStack** * **Linux / Ubuntu** * **Nginx & Caddy** * SSL/TLS and server configuration * Containerised applications * Cloud infrastructure * Deployment and production environments * API-driven infrastructure I have hands-on exposure to **OpenStack services including Keystone, Compute, Networking, Block Storage, Images, and Load Balancing**, giving me the ability to understand both application-level and infrastructure-level requirements. 📊 Monitoring & Observability Production software needs visibility. I work with **Prometheus and Grafana** for application and infrastructure monitoring, metrics, dashboards, performance analysis, and operational visibility. I believe a system should not only work—it should also be **observable, measurable, and maintainable**. 🔗 API & Integrations I have extensive experience developing and integrating APIs with third-party platforms and business systems, including: **Stripe, PayPal, Twilio, Google Calendar, REST APIs, WebSockets, Webhooks, CRM systems, payment platforms, and custom services.** I focus on reliable integrations with proper validation, authentication, error handling, and transaction management. 💼 Business Applications I have successfully worked on different types of systems including: * Custom CRM platforms * SaaS applications * Booking & scheduling systems * Payment platforms * Business management software * Customer portals * Advanced dashboards * Real-time chat applications * Reporting systems * API platforms * Automation systems * Cloud-based applications * Enterprise backend systems 🔧 How I Work My approach is simple: **understand first, build second.** Before starting development, I take time to understand your business, users, existing technology, objectives, and future requirements. I then recommend an architecture that is practical, scalable, secure, and maintainable. You can expect: ✅ Clear and professional communication ✅ Clean, structured, maintainable code ✅ Strong attention to performance and security ✅ Scalable architecture ✅ Proper API and database design ✅ Transparent progress and regular updates ✅ Complete project ownership ✅ Deployment and production support ✅ Long-term maintenance and technical partnership 🌟 Why Work With Me? With **15+ years of real-world development experience**, I can work across multiple layers of a technology stack—from frontend interfaces and backend services to databases, APIs, Docker containers, Kubernetes, cloud infrastructure, OpenStack, monitoring, and production environments. This broader perspective allows me to identify problems faster and make better technical decisions. I’m also comfortable working with both **modern applications and legacy systems**. If your existing application needs optimisation, refactoring