We are seeking a Frontend Developer to join our Technology team, responsible for developing and maintaining web-based systems that support core business operations across Masan's ecosystem (retail, FMCG, finance, etc.).

You will work on high-availability, user-facing applications such as customer loyalty portals, internal dashboards, CMS, and integration layers with ERP/CRM platforms. The ideal candidate has strong frontend fundamentals and hands-on experience delivering stable, scalable web applications in enterprise environments.

Responsibilities

Develop and maintain frontend components for web applications serving both internal users and external customers.
Build responsive, well-structured UI interfaces based on design system and business workflows.
Collaborate with backend developers, BA, and system teams to ensure robust API integration.
Ensure cross-browser compatibility, performance, accessibility, and maintainability of frontend code.
Participate in technical analysis, UI reviews, system testing, and troubleshooting.
Contribute to documentation, reusable component libraries, and codebase improvements.
Maintain high standards of code quality, version control, and deployment processes.

Qualifications

4–5 years of experience in frontend development for enterprise web applications or public systems (e.g. customer portals, eCommerce sites, loyalty platforms).
Strong skills in HTML5, CSS3, JavaScript, React.js, NextJS and modern UI frameworks.
Experience working with RESTful APIs, JSON data structures, and state management (e.g. Redux, Context API).
Knowledge of frontend architecture and design patterns for maintainable codebases.
Experience with version control (Git) and agile collaboration tools (Jira, Confluence).
Ability to work independently and communicate effectively with technical and non-technical teams.

Nice to have

Experience integrating frontend with ERP (SAP) or CRM systems (Salesforce).
Familiarity with security best practices for web applications (authentication, access control, etc.).
Understanding of frontend testing tools (Jest, Cypress) and build pipelines (Webpack, CI/CD).
Knowledge of SEO, Core Web Vitals, and performance optimization techniques.
Experience working in large-scale enterprise environments or with cross-BU systems.

Why Join Masan

Work on mission-critical systems that power Masan's leading businesses across Vietnam.
Be part of a stable yet fast-moving technology environment with long-term career paths.
Collaborate with domain experts, tech leaders, and functional teams across diverse industries.
Competitive compensation, clear advancement roadmap, and enterprise-level impact.

Frontend Developer (ReactJS/NextJS)