Senior WordPress Developer (Headless WordPress & Next.js)

• Develop, customize, and maintain WordPress websites and CMS solutions.
• Build and integrate Headless WordPress with Next.js using REST API and/or GraphQL.
• Design, develop, and maintain high-performance web applications using Next.js, ReactJS, and TypeScript.
• Customize WordPress themes, plugins, custom post types, taxonomies, and Advanced Custom Fields.
• Work with WordPress APIs, hooks, filters, and backend customization to support frontend requirements.
• Implement SEO-friendly, responsive, and pixel-perfect UI based on design requirements.
• Optimize WordPress and Next.js applications for performance, SEO, accessibility, scalability, and security.
• Handle data fetching and rendering strategies in Next.js, including SSR, SSG, ISR, and App Router.
• Collaborate closely with Product Managers, Designers, Backend Engineers, and QA teams.
• Conduct code reviews, enforce frontend/WordPress best practices, and mentor junior developers.
• Troubleshoot technical issues related to WordPress, frontend integration, APIs, performance, and deployment.
• Deploy and maintain applications on cloud infrastructure such as AWS or similar platforms.

• Vietnamese with Fluent English (C1/C2 level) – Able to communicate complex technical concepts smoothly with international clients
• 5+ years of experience in WordPress development.
• Strong experience with custom WordPress development, including themes, plugins, custom post types, taxonomies, hooks, filters, and ACF.
• Hands-on experience integrating WordPress with Next.js in a Headless CMS architecture.
• Solid experience working with WordPress REST API and/or GraphQL.
• Strong frontend development experience with Next.js, ReactJS, JavaScript/TypeScript, HTML5, and CSS3.
• Good understanding of Next.js rendering patterns include: SSR, SSG, ISR, and App Router.
• Experience optimizing websites for SEO, Core Web Vitals, performance, accessibility, and security.
• Familiarity with modern frontend styling approaches such as Tailwind CSS, SCSS, CSS Modules, or similar.
• Experience with version control using Git and working in Agile/Scrum teams.
• Experience deploying applications to AWS, Vercel, or similar cloud platforms.
• Good problem-solving skills, ownership mindset, and ability to work independently as well as in a team.

Nice to have

• Experience with WooCommerce or large-scale WordPress platforms.
• Experience with WPGraphQL.
• Experience working with multilingual websites.
• Experience with CI/CD pipelines.
• Experience leading frontend/WordPress architecture decisions.

• Work Location: Flexible. This role is open to hybrid or fully remote arrangements for candidates from anywhere in Vietnam.
• An open mind and flat structure where every voice is welcome.
• A work environment built on transparency, seamless communication, trust, and a sensible approach ,combined with mixed cultures and a speaking environment
• Individual assessments every 6 weeks with your line manager
• Performance review every  6 months
• 15 days of annual leave and + 6 days of fully paid sick leave per year – can be used for the care of sick child
• Christmas Holiday
• Competitive salary
• Bonus: 13th-month Salary
• Social insurance for employees who pass their probation

If you have any questions, please feel free to get in touch with our HR department at hr@xenia.tech.

Learn more about our culture and special benefits package .

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