Hire the Best API Developers
in Vietnam

PHP & MYSQL | NODEJS | WORDPRESS | WOOCOMMERCE | LARAVEL | CODEIGNITER IOT | ESP32 | ARDUINO | Raspberry Pi | STM32 I’m a senior full-stack developer with 15+ years of experience building websites, web applications, custom business systems, and integrations. I work across both frontend and backend, which allows me to understand the full picture of a project — from database structure, backend logic, APIs, and performance, to clean user interfaces and smooth user experience. What I can help with: • Custom WordPress and WooCommerce development • PHP, Laravel, CodeIgniter, and Core PHP development • React, Vue, Angular, JavaScript, HTML, CSS, and jQuery • Node.js backend development • API development and third-party integrations • Payment gateway integrations such as Stripe and eWAY • CRM, booking, membership, and custom workflow systems • Database design, optimization, and migration • Bug fixing, performance improvement, and server-side troubleshooting • Hybrid mobile app development with React Native, Ionic, and Cordova I focus on writing clean, maintainable, and scalable code. I also help clients make practical technical decisions, avoid unnecessary complexity, and build systems that are easier to manage and extend in the future. Over the years, I’ve worked on many types of projects — from small business websites to complex custom platforms. I’m comfortable joining an existing project, fixing difficult issues, improving performance, or building a new product from the ground up. If you’re looking for a reliable senior developer who can handle both the technical details and the bigger picture, feel free to invite me to your job. I’d be happy to discuss your project.

🏆 Upwork Top Rated Plus Talent from July 2023 until now 🏆 Upwork Top Rated Talent from Feb 2022 to July 2023 ⚡ Earn $100K+ after 4 years working on Upwork I am acknowledged as a top Zoho developer in Vietnam, and potentially all of Southeast Asia, with specialized expertise in C#. Zoho Ecosystem & Business Automation - Zoho One Architecture: End-to-end implementation and optimization of CRM, Books, Inventory, and Projects. - Advanced Development: Expert in Deluge, Client Scripts, and Custom Widgets to extend native functionality. - API & Integration: Engineering robust connections between Zoho and third-party services (Stripe, Xero, Twilio, RingCentral, and Shipping APIs). - Workflow Engineering: Designing complex automation and data validation logic to ensure system integrity and operational efficiency. AI & Intelligence Integration - LLM Implementation: Integrating ChatGPT and Gemini APIs into business workflows for automated document extraction (OCR) and intelligent client response generation. - Structured Data Processing: Transforming unstructured PDF/email content into actionable JSON data. Full-Stack Development (C# / .NET) - Enterprise Applications: Developing scalable solutions using ASP.NET Core and .NET 5+, following SOLID principles and Design Patterns (MVC, DI, Repository). - Data Architecture: High proficiency in Entity Framework Core, SQL database design, and performance optimization. - Modern Frontend: Building clean, high-contrast user interfaces with React and Ant Design (antd). - DevOps & Cloud: Managed version control via Git and deployment experience on Azure/AWS environments.

Hi! My name is Tan, and I'm from Ho Chi Minh City, Vietnam. I have worked as a full-stack software engineer for a variety of companies over the past 10+ years, ranging from start-ups to eight-figure corporations. I have extensive knowledge of cloud computing, front-end and back-end development, etc. I've worked with businesses in a wide range of industries, including food and beverages, working platforms, finance, digital products, software, therapy, education, and many more. I helped two Australian firms launch from the ground up and generate income in 2024 and 2025. I can assist you whether you require continuous sales, steady website traffic, or high-quality leads. I specialize in creating enterprise-grade, clean, and maintainable applications using the MERN/PERN stack (PostgreSQL/MongoDB, Express, React, and Node.js). The services I offer are - Building multi-tenant solutions from MVP to Version 2.0 through scalable SaaS development. - Performance optimization includes database indexing, Core Web Vitals expertise, and advanced on-page SEO for SPAs. - API & System Integration: Using custom REST/GraphQL APIs, Stripe, or Salesforce to link your ecosystem. - Cloud infrastructure: establishing affordable AWS/Azure hosting and automated CI/CD pipelines. - Increase Purchases: By improving state management and user interface responsiveness, I was able to design checkout sequences that decreased cart abandonment by 18%. - Generate More Leads: I build high-converting landing pages integrated with CRM workflows that capture and qualify leads automatically. - Increase Brand Awareness: By implementing Server-Side Rendering (SSR) and Static Generation (SSG) via Next.js, I ensure your platform is lightning-fast and indexed perfectly by search engines. Throughout my 10+ years of expertise, I have worked with both well-established FinTech companies and venture-backed startups. I approach every endeavor with a data-driven mindset - Statistical Gain: By switching from manually handled VPS services to an automated CI/CD workflow and optimizing building and delivery time, a client's server expenses were reduced by 35%, or more than $600 per month. - Scale: Using a Docker container approach, a database migration was successfully handled, database backups were planned with no downtime, and moving to a different clouding service was simple. - Industry Versatility: extensive knowledge of banking, education technology, and fintech. I'm proficient in the following languages: - PHP - Python - TypeScript - JavaScript I'm proficient using the following tools: - MySQL - React, React Native - Next.js - Tailwind - Material UI - Supabase - Firebase - Postgres - Sanity IO - Vanilla CSS - Bootstrap - And many more Thanks for taking the time to read this. If you're interested in working together, feel free to send me a message by pressing the button in the top right corner. Looking forward to connecting!

I’m a developer experienced in building websites for small and medium-sized businesses. Whether you’re trying to win work, list your services, or create a new online store, I can help. Knows HTML and CSS3, PHP, jQuery, SEO and more skills completely build website system. Full project management from start to finish Regular communication is important to me, so let’s keep in touch.

Senior Full Stack Developer | AI/ML Solutions | Enterprise-Scale Applications | 30+ Successful Projects I'm Vinh, a results-driven Software Engineer with 7+ years of experience architecting and delivering high-performance applications. As a former Full-stack Engineer at an AI-focused startup backed by $10M in VC funding, I specialize in building scalable developer tools and enterprise SaaS solutions. 🏆 Why Partner With Me: - Top Rated Plus (Top 3%) on Upwork with 100% Job Success Score - Successfully delivered 30+ projects with 5-star client satisfaction - Built systems handling 100k+ monthly active users - 8,000+ hours of proven expertise on Upwork - End-to-end project ownership from conception to deployment 🔧 Technical Excellence: Backend: - Node.js/TypeScript ecosystem (Express, NestJS, Elysiajs, Supabase) - Advanced ORM implementations (Sequelize, TypeORM, Prisma, Drizzle) - GraphQL APIs (Hasura, Apollo, TypeGraphQL) - High-performance caching (Redis, Memcached) - Microservices architecture (gRPC, RabbitMQ, Docker Frontend: - React/Next.js with SSR optimization - Enterprise-grade state management - Performance-optimized data visualization - Headless CMS integration (WordPress, Contentful) - Responsive UI/UX with TailwindCSS DevOps & Infrastructure: - AWS ecosystem (EC2, S3, SES) - Container orchestration (Docker, DockerSwarm) - CI/CD automation (GitLab) - Load balancing (Traefik) - Message queuing (RabbitMQ, Redis) 💡 Value Proposition: - Architectural expertise ensuring scalable, maintainable solutions - Clean code practices reducing long-term maintenance costs - Proactive communication and detailed documentation - Quick problem-solving and efficient bug resolution - Flexible availability across time zones Let's discuss how I can help transform your vision into a robust, scalable solution. Available for: - Full-stack development of new applications - Feature enhancement of existing systems - Performance optimization and bug resolution - Technical consultation and architecture design Contact me to schedule a consultation and discuss your project requirements.

💎 100% Job Success 🌟 40+ Top-Rated Apps – All 5★ Reviews 📱 Expert in Android & iOS — Native & Cross-Platform 🤖 AI-Powered, Next-Level Coding Vibes • Highly motivated and focused IT Engineer • More than 9 years of professional experience as Android - iOS developer, Technical Lead. • Created many user-friendly, aesthetically pleasing and fully functional applications for Android and iOS • Experienced in leading teams sized 4-6 members. • Experienced working in multiple kinds of project • Experienced in requirements analysis and functions/user flow design. • Quick learning, implementation and easy adoption to new technologies Skills: Java/Kotlin (Proficient, 9/10), Swift (Proficient, 9/10), Objective-C (Proficient, 9/10), API with PHP (Knowledgeable, 7/10), Angular JS (Knowledgeable, 8/10), Node JS (Knowledgeable, 7/10) IDEs: Eclipse (Proficient, 9/10), Android Studio (Proficient, 9/10), Sketch (Knowledgeable, 7/10), Photoshop (Knowledgeable, 7/10), XD (Knowledgeable, 7/10), Notepad++ (Proficient, 9/10) Tools: SVN (Knowledgeable, 7/10), Jira (Knowledgeable, 7/10), Trello (Proficient, 8/10), GIT (Proficient, 8/10), Bitbucket (Proficient, 8/10), Gitlab (Proficient, 8/10)