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I am a passionate full-stack web and mobile developer who loves turning ideas into scalable, high-performance applications. I work hands-on with PHP, Node.js, Python (Django), Ruby on Rails, React, Vue, and mobile development (Android and iOS), building everything from robust back ends to polished front ends and API integrations.\n\nI value clear architecture, secure authentication, and thoughtful user experiences, and I thrive in collaborative, cross-functional teams across industries. My goal is to grow as a solutions architect, delivering end-to-end product design and distributed, scalable systems that empower users and businesses alike.…I am a passionate full-stack web and mobile developer who loves turning ideas into scalable, high-performance applications. I work hands-on with PHP, Node.js, Python (Django), Ruby on Rails, React, Vue, and mobile development (Android and iOS), building everything from robust back ends to polished front ends and API integrations.\n\nI value clear architecture, secure authentication, and thoughtful user experiences, and I thrive in collaborative, cross-functional teams across industries. My goal is to grow as a solutions architect, delivering end-to-end product design and distributed, scalable systems that empower users and businesses alike.

John Tan

Full Stack Developer, Web Developer, Front-End Developer, +3

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I am a passionate full-stack web and mobile developer who loves turning ideas into scalable, high-performance applications. I work hands-on with PHP, Node.js, Python (Django), Ruby on Rails, React, Vue, and mobile development (Android and iOS), building everything from robust back ends to polished front ends and API integrations.\n\nI value clear architecture, secure authentication, and thoughtful user experiences, and I thrive in collaborative, cross-functional teams across industries. My goal is to grow as a solutions architect, delivering end-to-end product design and distributed, scalable systems that empower users and businesses alike.…I am a passionate full-stack web and mobile developer who loves turning ideas into scalable, high-performance applications. I work hands-on with PHP, Node.js, Python (Django), Ruby on Rails, React, Vue, and mobile development (Android and iOS), building everything from robust back ends to polished front ends and API integrations.\n\nI value clear architecture, secure authentication, and thoughtful user experiences, and I thrive in collaborative, cross-functional teams across industries. My goal is to grow as a solutions architect, delivering end-to-end product design and distributed, scalable systems that empower users and businesses alike.

Available to hire

I am a passionate full-stack web and mobile developer who loves turning ideas into scalable, high-performance applications. I work hands-on with PHP, Node.js, Python (Django), Ruby on Rails, React, Vue, and mobile development (Android and iOS), building everything from robust back ends to polished front ends and API integrations.\n\nI value clear architecture, secure authentication, and thoughtful user experiences, and I thrive in collaborative, cross-functional teams across industries. My goal is to grow as a solutions architect, delivering end-to-end product design and distributed, scalable systems that empower users and businesses alike.

Skills

Experience Level

Expert

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Intermediate

Intermediate

Language

English

Advanced

Work Experience

Full-stack Web Developer at Freelance & Project-Based Work

January 20, 2018 - Present

Designed and developed full-stack applications using PHP, React, Node.js, Django, and Ruby on Rails; Built and deployed Android and iOS apps, integrating APIs and secure authentication workflows; Created responsive front-ends with HTML, CSS, JavaScript, Angular, and Vue; Developed RESTful APIs and optimized performance; Collaborated with clients across diverse industries to deliver on-time, aligned solutions; Focused on intuitive UX, scalable architectures, and robust CI/CD practices.

Backend & API Developer at Project Work

January 20, 2023 - October 3, 2025

Engineered high-performance backend services with Laravel (PHP), Express (Node.js), Django (Python); Implemented secure authentication systems (JWT, OAuth 2.0) and integrated third-party APIs; Deployed and maintained apps on cloud environments (AWS, Docker, Kubernetes); Worked on multi-developer teams with Git and CI/CD pipelines; Designed Node.js backend architecture with Express.js routing and Sequelize ORM for PostgreSQL; Implemented scalable, maintainable solutions across development projects.

Full-Stack Web Developer at Freelance & Project-Based

January 1, 2018 - Present

Designed and developed full-stack applications using PHP, React, Node.js, Django, Ruby on Rails, and other technologies; built and deployed Android and iOS apps; created responsive front-ends with HTML, CSS, JavaScript, Angular, and Vue; developed robust RESTful APIs and optimized databases and workflows.

Backend & API Developer at Freelance & Project-Based

January 1, 2023 - October 3, 2025

Implemented secure authentication systems (JWT, OAuth 2.0) and integrated third-party APIs; deployed apps on cloud environments (AWS, Docker, Kubernetes); contributed to multi-developer teams with CI/CD pipelines; designed MVC architecture and ORM data models; improved analytics with data tracking and SQL DBs.

Mobile App Developer at Freelance & Project-Based

January 1, 2023 - October 3, 2025

Built and published Android and iOS apps using Java/Kotlin and Swift; integrated back-end APIs and ensured smooth cross-platform experiences; optimized mobile performance and user engagement; participated in hackathons and coding challenges.

Full-Stack Web Developer at Freelance & Project-Based Work

January 1, 2018 - Present

Designed and developed full-stack applications using PHP, React, Node.js, Django, and Ruby on Rails; built and deployed Android and iOS apps; integrated APIs and secure authentication; created responsive front-ends with HTML, CSS, JavaScript, Angular, React, Vue; developed and optimized RESTful APIs with caching, DB indexing, and query optimization; collaborated with clients across diverse industries to deliver projects on time and aligned with business needs.

Backend & API Developer at Project Work

January 1, 2023 - October 3, 2025

Engineered high-performance backend services with Laravel (PHP), Express.js (Node.js), and Django; implemented secure authentication systems (JWT, OAuth2) and integrated third-party APIs; deployed and maintained applications in cloud environments (AWS, Docker, Kubernetes); collaborated in multi-developer teams, applying modern CI/CD practices; designed Node.js backend architecture with custom ORM for PostgreSQL/MySQL data management; improved system reliability and scalability.

Mobile App Developer at Freelance & Part-Time

January 1, 2023 - October 3, 2025

Built and published Android and iOS applications; integrated back-end APIs and secure authentication flows; created cross-platform experiences using React Native; contributed to UI/UX design and performance optimizations for mobile apps.