Md. Shariful I.

Senior Full-Stack Engineer with 15+ years of experience building, modernizing, and AI-enabling web platforms for clients around the world — backed by a 100% Job Success Score, Top Rated Plus status, and 216+ completed projects on Upwork. I help businesses move beyond template solutions and off-the-shelf plugins. Whether you need a custom AI-powered workflow tool, an enterprise CMS overhaul, or a full-stack application built from scratch, I bring the engineering depth and architectural judgment to get it right the first time. What I do best: AI & LLM Integration — OpenAI and Gemini-powered assistants, workflow automation, prompt engineering, and RAG-ready architecture that turns AI from a buzzword into a working product feature Enterprise CMS — WordPress, Drupal, and Joomla builds, customizations, and migrations, including multi-vendor marketplaces (WooCommerce/Dokan) with integrated Stripe payments Modern Web Apps — React, Next.js, Node.js, and TypeScript applications built for performance and long-term maintainability Android Development — native apps in Kotlin Legacy Modernization — turning aging codebases and outdated CMS installs into secure, performant, modern systems Recent projects include a multi-vendor eCommerce marketplace with automated seller payouts, a multilingual Drupal 10 property platform with map-based search, an AI-driven business workflow platform integrating OpenAI and Gemini, and a Next.js publishing platform for authors. I've spent over a decade working with international clients — mostly long-term, ongoing relationships rather than one-off gigs — because I focus on clear communication, realistic timelines, and code that's still easy to maintain a year later. I handle everything from architecture and discovery through deployment and ongoing support, so you're not left managing the handoffs yourself. If you're looking for a senior engineer who can own your project end-to-end, I'd love to hear what you're building. Send me a message and let's get started.