Full-stack Web Mobile Developer
Metro Manila
Hi, I’m Justin Mark P. Agustin, a Web Designer and Software Engineer specializing in responsive web and mobile applications using Next.js, React, Tailwind CSS, Vue.js, Flutter, Dart, and Figma, with experience in freelancing, Web3/blockchain development, AI-assisted platforms, and frontend/backend development for modern digital solutions.
AR Data Technologies, full_time
Jul 2025 to Present
• Main frontend developer for Web3/blockchain applications, including UI implementation and dApp integration. • Collaborated on Web3 and blockchain features such as wallet and smart contract integration. • Assist in developing application features across both frontend and backend components under the guidance of senior engineers. • Implement basic user interface elements and responsive layouts using frontend technologies such as HTML, CSS, JavaScript, and modern frameworks (e.g., React or similar). • Support backend development tasks by writing simple APIs, implementing business logic, and handling basic data operations using languages/frameworks such as Node.js, Python, Go, or similar. • Help integrate frontend and backend systems, ensuring proper communication through RESTful APIs. • Participate in code reviews and assist in testing, debugging, and troubleshooting to improve code quality and user experience. • Collaborate with designers and other team members for requirements and contribute to feature delivery. • Perform documentation tasks including updating technical notes and maintaining records of assigned work. • Continuously learn and apply the development practices as part of skill growth and team contribution
Insightz Technology, full_time
Sep 2024 to May 2025
• Lead the development of responsive web applications using Next.js, Tailwind CSS, and MySQL. • Design user-friendly layouts and interfaces using Figma. • Use Cursor AI IDE to boost development speed and implement AI-assisted solutions. • Manage source control and team collaboration through GitHub. • Lead Quality Assurance by performing thorough testing and debugging. • Maintain and update websites with new features, content, and performance improvements.