SeniorFull-stackDeveloper(PHP+Vue.js)

SmartDev is an AI-powered software development company headquartered in Vietnam, part of the Verysell Group. We help global businesses deliver faster and build smarter — combining AI-driven development practices with deep expertise across fintech, healthcare, retail, and enterprise technology. Our team of engineers, architects, and AI specialists works across the full stack: from custom software and cloud solutions to generative AI, MLOps, and intelligent automation. At SmartDev, we believe that great architecture and AI-first thinking are a competitive advantage — and we build our teams accordingly. The company is at a pivotal point in our journey: transitioning from a pure IT outsourcing provider to an AI-enabled solutions partner. We have over 100 talented employees working both on-site and remote/hybrid at locations: * Hanoi: Zodiac building, 19 Duy Tan Street, Dich Vong Hau ward, Cau Giay District, Hanoi * Danang: 81 Quang Trung, Hai Chau 1 ward, Hai Chau District, Danang * Contribute to the full-scale modernization and renewal of a large legacy PHP application. * Implement improvements including mobile responsiveness, CSS enhancements, UI/UX refinements, and overall code quality upgrades. * Work on both backend (PHP) and frontend (Vue.js) development. * Experience with WordPress CMS or the Laravel framework is recommended * Follow a disciplined AI-driven development workflow using tools such as Claude and Codex , with strong human oversight and validation. * Write and improve tests, documentation, and ensure changes are stable in a complex, not-fully-documented codebase. * Collaborate closely with Bian (who will provide guidance) and other team members to deliver measurable improvements. * Identify and implement low-hanging fruit while working toward clear business metrics and ROI. * Participate in server migration and DevOps-related tasks when required. * ## Qualifications What You Bring * 4+ years of professional PHP development , with at least 2+ years work