OfficeCầu Giấy, Hà Nội, VietnamSE
Job Description
- 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 working hands-on inside large legacy codebases.
- Solid Vue.js experience, or strong React experience and a credible plan to pick up Vue.js quickly.
- Demonstrated full-stack mindset - comfortable moving between back-end logic, front-end behaviour, and the seams between them.
- Hands-on experience using AI coding tools (Claude, Codex, or similar) in a structured way - you review, test, and own what the tool produces.
- Conversational English — you can discuss technical decisions clearly, understand written requirements, and explain your reasoning to teammates and the client's tech lead.
Bonus Points
- DevOps / SysOps experience, particularly with server migrations.
- Prior experience modernizing or untangling legacy applications end-to-end.
- WordPress CMS or Laravel framework experience.
- Strong instincts for testing strategy and documentation in large codebases.
Additional Information
- 20 annual leave days alongside Vietnamese public holidays
- Competitive Salary & Bonus
- Lunch Allowance
- Premium Health Care PVI
- Yearly career/ performance evalulation
- A flat organization (respect, teamwork, flexibility, transparency)
- 13th salary bonus/ competitive salary
- Cutting-edge technologies/ Scrum methodology/ Agile development
- Great activities (Team Building, Company Trip, Weekly Happy Friday, …)
- Good work environment and good colleague (parties, holidays, team building activities)
Other open roles at SmartDev(6)
Senior IT System Engineer (based in Da Nang)
Hải Châu, Đà Nẵng, Vietnam
On-site[Danang Onsite] Accounting Intern
Hải Châu, Đà Nẵng, Vietnam
On-siteTech Lead (Computer Vision)
Cầu Giấy, Hà Nội, Vietnam
On-siteTechnical Lead
Cầu Giấy, Hà Nội, Vietnam
On-siteSenior Software Developer (Front-end strong | ReactJS, Next.js)
Cầu Giấy, Hà Nội, Vietnam
🏡 RemoteSmartDev
View company pageSmartDeviceLink (SDL) connects in-vehicle infotainment systems to applications. The SDL ecosystem allows collaboration between developers, OEMs, and suppliers.
Key team members

Paul Elsila

Joey Grover
Apply smarter with Jobr
Jobr aggregates jobs directly from company career portals — no middlemen. Our team applies on your behalf with AI-tailored resumes, reviewed by a human before submission.
Direct from company career pages
AI-personalised cover letters
Human review before every submit
Application tracking & follow-ups