Jihad Hasan M.

Most web projects don't fail on code. They fail because nobody settled the data model, the scope, or who owns the AI layer before the build started. I'm Jihad, a full-stack engineer who takes that ownership. React and Next.js on the front, Node.js and Python behind it, and the AI layer in between. WHAT I BRING - Full-stack engineer on an Upwork Enterprise AI training contract, evaluating and improving AI-generated code - 350+ projects delivered as a Level Two seller on Fiverr, Top Rated nominated - Former CTO of a US digital solutions company - IEEE-published researcher in AI model optimization - B.Sc. in Computer Science and Engineering, Best Project Award from the university Vice Chancellor WHAT I BUILD Web Applications and Dashboards Admin panels, internal tools, customer portals, and SaaS front ends built with React, Next.js, TypeScript, Redux and modern JavaScript. Responsive builds from Figma or an existing design system. Backends and APIs REST API design and implementation with Node.js and Express, authentication and role-based access control, third-party integrations, input validation and structured error handling. Database work across MongoDB, PostgreSQL and MySQL: schema design, indexing, queries, migrations and seed data. AI and LLM Work LLM integration into production applications, prompt engineering, model evaluation and output quality assessment, RLHF-aligned workflows, and task-specific model optimization. My IEEE Xplore paper covers designing and optimizing AI models for offline, low-resource deployment. E-commerce and Marketplaces Multivendor marketplaces, product catalogs, cart and checkout flows, and payment gateway integration, including mobile builds in Kotlin and Swift. WordPress and Directory Sites Business directory and listing websites using Directorist, plus WordPress and Shopify builds where that is the right tool rather than a custom application. SELECTED WORK - Multivendor e-commerce marketplace built with Node.js, React, PostgreSQL and Express. Independent seller storefronts, product listings, cart and centralised checkout. Awarded Best Project by the university Vice Chancellor. - Multivendor platform on Magento 2, taken to first production release on both the Play Store and App Store, with Orange Money and MTN payment integration. - Offline AI model optimization research, published in IEEE Xplore, covering model compression, inference efficiency and evaluation methodology. HOW I WORK I get clear on the problem and the data model before writing code, and agree on scope with you up front. I ship in reviewable pieces so you can test each part as it lands rather than waiting weeks for a single handover. I write documented code, apply SOLID principles, and leave a codebase the next developer can pick up. I work 30+ hours a week from UTC+6, on a schedule already aligned to US and European hours. I have worked remote roles on US-aligned schedules since 2022. Tell me what you're building, and I'll tell you honestly whether I'm the right fit, what it will take, and what I would tackle first.