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Johnny Hung
@johnnyhungdev
Senior FullStack Developer, WordPress and AI Creative Expert
Vietnam
Vietnamesisch, Englisch, Japanisch
Über mich
I'm Johnny Hung, a Full-Stack Developer, WordPress Expert, and AI Digital Creator based in Vietnam. I specialize in PHP, MySQL, JavaScript, C#, REST APIs, business websites, e-commerce, and custom software. I also provide graphic design, photo editing, video editing, AI-generated images and videos, and digital content solutions. My skills include API integration, automation, UI/UX design, and website optimization. I combine technical expertise with creativity to deliver modern websites, engaging visuals, SEO-friendly experiences, and reliable business solutions. Let's bring your ideas to life!
Kompetenzen
Johnny Hung
offline •
Durchschnittliche Antwortzeit: 1 Stunde
Meine Dienstleistungen
WordPress
I will build a professional wordpress website
Fehlerbehebung
I will fix wordpress and elementor layout issues
Portfolio
Arbeitserfahrung
Founder & Digital Technology Consultant
Self-Employed / Independent • Selbstständig
Aug 2020 - Present • 6 yrs 3 mos
Senior Full-Stack Software Engineer and independent Digital Technology Consultant with 15+ years of experience in software engineering, web development, database systems, and digital solutions. - Design, develop, and maintain custom web applications, e-commerce platforms, and database-driven systems using PHP, MySQL, JavaScript, HTML5, and CSS3 - Build and customize WordPress themes, plugins, CMS administration tools, multilingual websites, and role-based access control systems - Develop RESTful APIs and JSON integrations for product catalogs, search, filtering, pagination, and third-party applications - Develop and maintain the Gao Ngon Nhat e-commerce platform, including product management, backend workflows, responsive interfaces, and production support - Build API-driven frontend prototypes using React, Next.js, and TypeScript with reusable components and responsive design - Troubleshoot backend logic, SQL queries, API responses, hosting environments, and application performance - Implement technical SEO, structured data, XML sitemaps, indexing improvements, and website optimization - Configure development environments using Git, GitHub, Docker, WSL2, MySQL, Redis, and local testing workflows - Evaluate integrations involving Go, Angular, REST APIs, databases, and containerized services - Apply security-aware practices, authentication controls, code reviews, regression testing, and backup procedures - Use AI-assisted engineering tools for development, debugging, refactoring, and documentation with human validation - Translate business requirements into technical solutions, coordinate deployments, resolve incidents, and provide ongoing support - Deliver maintainable software focused on reliability, usability, performance, and long-term business value
Software Deployment & IT Support Specialist
Vietnam National University, Hanoi • Vollzeit
Aug 2015 - Aug 2020 • 5 yrs
Supported deployment and operation of software systems and database-backed applications in a large education environment. Investigated application, infrastructure and user-workflow incidents; coordinated fixes and provided technical guidance to ensure system stability and performance across the university network.
