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.
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.
- 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)
Skills Required
- 4+ years professional PHP development experience
- 2+ years hands-on working inside large legacy codebases
- Solid Vue.js experience or strong React experience with plan to pick up Vue.js quickly
- Demonstrated full-stack mindset comfortable with backend, frontend, and integration points
- Hands-on experience using AI coding tools (Claude, Codex, or similar) in a structured, reviewed workflow
- Conversational English for technical discussion and requirement understanding
- DevOps / SysOps experience, particularly with server migrations
- Prior experience modernizing or untangling legacy applications end-to-end
- Experience with WordPress CMS or Laravel framework
- Strong instincts for testing strategy and documentation in large codebases
What We Do
Founded in 1990, Verysell Group is a renowned global software development company, headquartered in Switzerland. We offer various services from staff augmentation to building bespoke software solutions for industries such as Fintech, Payment tech & InsurTech. Central to our business is the offshore development center (ODC) SmartDev LLC in Vietnam where we develop software for external customers and our in-house products such as VeryPay - a mobile money payment platform. Our offices are located in 8 cities on 4 continents. This allows us to cater to a diverse clientele, including start-ups, scale-ups, and large global enterprises. Our family of brands SmartDev, VeryPay, Smart81 & VeryPlay Studio helps us focus on specific market segments and client types. SmartDev is a broad base outsourcing partner for enterprise clients worldwide. Recognized as the Winner of SME100® Fast Moving Companies, SmartDev specializes in building FinTech apps, insurance software, and more. Smart81 is a subsidiary of SmartDev and is instrumental in accelerating growth for start-ups and scale-ups by advising, collaborating, and crafting enterprise-level technology through our offices in California, Singapore, and London – the world's leading centers of startup economy. VeryPay is a mobile payments technology provider offering technology solutions for African mobile network operators, while VeryPlay Studio serves as a full-cycle game developer, merging Switzerland's quality standards with Asia's production expertise. The Applied AI Lab, another innovative extension of the Verysell Group, showcases our commitment to AI revolution by providing high-level consulting services, aiming to integrate AI functionalities in business, thereby enhancing productivity and expanding product offerings. AI Lab is also an in-house center of excellence in this field with a mandate for AI transformation.
