Muhammad Hassan R.

Full-stack engineer with 5 years shipping multi-tenant production systems, plus a senior code review role for a frontier AI lab evaluating AI-generated code daily. So I bring both shipping discipline and a calibrated eye for code quality. I work in: Laravel/PHP, Vue 3, NestJS, React, Node.js, Prisma, MySQL/MariaDB, AWS, OAuth/SSO, and LLM integrations (OpenAI, streaming, async pipelines). Best fit for: multi-tenant SaaS builds, legacy modernization (PHP to modern JS), production debugging on real-world infra (cPanel, AWS), LLM-powered web apps, and senior-engineer code review. Currently lead engineer on a 7+ year-old ERP modernization across 37+ tenant sites at Script IT Solutions. Available for project builds, retainers, and 1:1 consultations. Clear written follow-ups after every engagement.