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I am a passionate full stack developer who loves turning complex ideas into scalable web and mobile applications. I’ve delivered solutions across healthtech, SaaS, and crypto, and I thrive in Agile/Scrum environments, crafting engaging client-side experiences with React, React Native, Angular, and Vue. I’ve led major refactors and built robust care management features, secure authentication, real-time communication, calendar and geolocation integrations, and scalable back-end services with Nest.js, PostgreSQL, and Redis. I enjoy delivering polished admin dashboards, payments integration with Stripe, GDPR-compliant data practices, and reliable CI/CD pipelines on AWS.…I am a passionate full stack developer who loves turning complex ideas into scalable web and mobile applications. I’ve delivered solutions across healthtech, SaaS, and crypto, and I thrive in Agile/Scrum environments, crafting engaging client-side experiences with React, React Native, Angular, and Vue. I’ve led major refactors and built robust care management features, secure authentication, real-time communication, calendar and geolocation integrations, and scalable back-end services with Nest.js, PostgreSQL, and Redis. I enjoy delivering polished admin dashboards, payments integration with Stripe, GDPR-compliant data practices, and reliable CI/CD pipelines on AWS.

Melvin Vu

Full Stack Developer, Front-End Developer, Back-End Developer, +5

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I am a passionate full stack developer who loves turning complex ideas into scalable web and mobile applications. I’ve delivered solutions across healthtech, SaaS, and crypto, and I thrive in Agile/Scrum environments, crafting engaging client-side experiences with React, React Native, Angular, and Vue. I’ve led major refactors and built robust care management features, secure authentication, real-time communication, calendar and geolocation integrations, and scalable back-end services with Nest.js, PostgreSQL, and Redis. I enjoy delivering polished admin dashboards, payments integration with Stripe, GDPR-compliant data practices, and reliable CI/CD pipelines on AWS.…I am a passionate full stack developer who loves turning complex ideas into scalable web and mobile applications. I’ve delivered solutions across healthtech, SaaS, and crypto, and I thrive in Agile/Scrum environments, crafting engaging client-side experiences with React, React Native, Angular, and Vue. I’ve led major refactors and built robust care management features, secure authentication, real-time communication, calendar and geolocation integrations, and scalable back-end services with Nest.js, PostgreSQL, and Redis. I enjoy delivering polished admin dashboards, payments integration with Stripe, GDPR-compliant data practices, and reliable CI/CD pipelines on AWS.

Available to hire

I am a passionate full stack developer who loves turning complex ideas into scalable web and mobile applications. I’ve delivered solutions across healthtech, SaaS, and crypto, and I thrive in Agile/Scrum environments, crafting engaging client-side experiences with React, React Native, Angular, and Vue.

I’ve led major refactors and built robust care management features, secure authentication, real-time communication, calendar and geolocation integrations, and scalable back-end services with Nest.js, PostgreSQL, and Redis. I enjoy delivering polished admin dashboards, payments integration with Stripe, GDPR-compliant data practices, and reliable CI/CD pipelines on AWS.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Full Stack Developer at CarersHQ Ltd

August 1, 2025 - October 7, 2025

Led a full refactor and modernization of an aging React Native application, migrating code to a modular, scalable architecture using Expo SDK 50+, TypeScript, and React Native for consistent UI/UX across platforms. Implemented native OS authentication methods (Touch ID, Face ID) using Expo Local Authentication and native modules for secure and seamless user access. Architected care-management features including timesheet generation with real-time logging and digital signatures; calendar scheduling with Google Calendar API integration; in-app messaging with WebRTC and push notifications via Firebase Cloud Messaging; location tracking and geofencing; RESTful and GraphQL endpoints with NestJS, TypeORM, PostgreSQL, Redis; Docker/Kubernetes-based microservices; React + Chakra Admin Dashboard for user/care logs/compliance/payments/analytics; Stripe for payments; GDPR compliance with encryption, access control (RBAC), and audit logging; CI/CD with GitHub Actions; AWS Fargate, S3, CloudFront;

Front-End Developer at Miidas

September 1, 2023 - October 7, 2025

Created frontend based on UX designs with pixel-perfect UI; integrated Live video conferencing using WebRTC; built a blockchain-based NFT marketplace using React, Redux Toolkit, Material-UI, Storybook, and Web3.js; established an atomic design system with Storybook; implemented advanced filtering and multi-chart visualizations; integrated ChatGPT API; built a React Native mobile app with Auth0 authentication and FCM push notifications.

Full-stack Engineer at Wee Bee Kids Inc

August 1, 2021 - October 7, 2025

Led frontend development, created a unified rich text editor for mobile/desktop/web, and developed a JavaScript image annotation tool with re-editable vector data stored in image binaries. Implemented Angular-based pages for full-screen auto-generated presentations, integrated 5+ complex build pipelines, developed a custom vector graphics library for annotating bitmaps and PDFs, and implemented microservices with a serverless approach. Also built a React Native mobile app with real-time messaging via WebSockets.

Front-end Developer at Homyse

April 1, 2019 - October 7, 2025

Built API endpoints with Node.js and MongoDB; developed an admin platform for managing entities and users with React, Node.js, and Mongoose; created complex UI components with React/TypeScript and SCSS; improved UX with drag-and-drop components; developed a mobile app with IONIC and integrated with backend; wrote data manipulation scripts.

Full Stack Developer at CarersHQ Ltd

August 1, 2025 - October 7, 2025

Led a full refactor and modernization of an aging React Native app, migrating to a modular, scalable architecture using Expo SDK 50+, TypeScript, and React Native for consistent UI/UX across platforms. Implemented native OS authentication (Touch ID/Face ID). Architected care management features including real-time timesheets with digital signatures, scheduling with Google Calendar integration, in-app messaging with WebRTC, push notifications via FCM, and location tracking with geofencing. Built scalable RESTful and GraphQL APIs using Nest.js, TypeORM, PostgreSQL, Redis; deployed microservices with Docker/Kubernetes; created a responsive Admin Dashboard (React + Chakra UI) for users, carers, logs, compliance, payments, and analytics. Integrated Stripe, ensured GDPR compliance with encryption and RBAC, and set up CI/CD on GitHub Actions with Docker on AWS Fargate and S3/CloudFront. Wrote unit/integration tests with Jest and RTL.

Front-end Developer at Miidas

September 1, 2023 - October 7, 2025

Created frontend aligned with UX designs, achieving pixel-perfect UI; integrated live video conferencing with WebRTC; built a blockchain-based NFT marketplace using React, Redux Toolkit, Material-UI, Storybook, and Web3.js. Established an atomic design system on top of Material-UI with reusable atoms, molecules, and organisms. Implemented feature-rich filtering, created multiple chart components via API integration, integrated ChatGPT API on QA page, and built a React Native mobile app with Auth0 authentication and FCM push notifications.

Full-stack Engineer at Wee Bee Kids Inc

August 1, 2021 - October 7, 2025

Led frontend development and unified a rich-text editor for mobile, desktop, and web; built a JavaScript-based image annotation tool that stores vector data in image binaries; created an Angular-based full-screen presentation feature; coordinated 5+ complex app build pipelines around a shared rich-text editing component. Developed a microservices approach with serverless architecture and built a React Native app with real-time messaging via WebSockets.

Front-end Developer at Homyse

April 1, 2019 - October 7, 2025

Worked on providing API endpoints with Node.js and MongoDB; built an admin platform for managing data and users using React, Node.js, and Mongoose; implemented complex UI components with React/TypeScript and SCSS; improved UX with drag-and-drop components; created a mobile app using Ionic and integrated with backend APIs.