Melvin Vu

BACHELOR’S DEGREE OF & COMPUTER SCIENCE

2013 – 2017

Hanoi University

Obtained First Class with Distinction in all the semesters

Best Outgoing Student - & Academics

2013 – 2017

Hanoi University

Earned the accolade, "Best Outgoing Student - Academics" for the year 2016

Full Stack Developer (AI Integration)

10/2023 to Present

CarersHQ Ltd

• CarersHQ is a SaaS-enabled marketplace for elderly care services in the UK. It connects care recipients with professional caregivers. It also provides caregivers with care management software tools to aid them in care provision.
• 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.
• Implement native OS authentication methods (Touch ID, Face ID) using Expo Local Authentication and native modules for secure and seamless user access.
• Architected and delivered robust care management features including:
  • Timesheet generation & validation, with real-time logging and digital signatures.
  • Task scheduling and calendar sync (integrated with Google Calendar API).
  • In-app communication module with real-time messaging, audio/video calls via WebRTC, and push notifications using Firebase Cloud Messaging (FCM).
  • Location tracking & routing with Google Maps SDK and geofencing for monitoring caregiver visits.
• Developed scalable RESTful APIs and GraphQL endpoints using NestJS, TypeORM, PostgreSQL, and Redis for caching real-time location and chat sessions.
• Led development of an AI-driven care platform empowering UK caregivers with intelligent tools for client matching, task automation, and care insight generation.
• Integrated an AI chatbot using OpenAI API and LangChain, connected to internal APIs for contextual Q&A and support.
• Built a modular React Native app with a NestJS backend on AWS, integrated with Stripe and WebRTC for secure payments and real-time communication.
• Implemented MLOps workflows with FastAPI and Docker for seamless model deployment and performance monitoring.
• Created a responsive Admin Dashboard (React + Chakra UI) for managing users, carers, care logs, compliance, payments, and analytics.
• Created a responsive Admin Dashboard (React + Chakra UI) for managing users, carers, care logs, compliance, payments, and analytics.
• Ensured data compliance with GDPR by implementing robust encryption, access control (RBAC), and audit logging.
• Setup and maintained CI/CD pipelines using GitHub Actions and deployed it using Docker, AWS Fargate, and S3/CloudFront for frontend hosting.
• Wrote unit and integration tests using Jest, React Testing Library, and Supertest.

Tech Stack: React Native, Expo, TypeScript, NestJS, Node.js, PostgreSQL, Redis, Docker, Kubernetes, AWS (ECS, Fargate, S3, CloudFront, RDS), Stripe, Firebase, GraphQL, WebRTC, Jest, CI/CD, Sentry, Datadog, OpenAI API, LangChain, FastAPI, Python

Frontend Developer

09/2021 to 09/2023

Miidas

• Created frontend using UX design in a pixel-perfect and user friendly way.
• Created frontend to integrate Live video conferencing & collaboration function using WebRTC.
• Developed a blockchain-based NFT marketplace platform using React, Redux Toolkit, Material-UI, Storybook, and Web3.js.
• Introduced an atomic design with descriptive documentation using Storybook and configured its UI library and design system on the top of Material-UI using all the reusable components like atoms, molecules, and organisms.
• Built a user-friendly filtering functionality and boosted the code quality and performance significantly.
• Created several muti-chart like Line chart, Bar Chart, Pie Chart and Bubble Chart within backend APIs integration.
• Created test cases for frontend using Jest.
• Integrated ChatGPT api in user QA page.
• Created a React Native mobile application, integrating Auth0 for authentication, Firebase Cloud Messaging (FCM) for push notifications, and various third-party APIs to enhance functionality and user experience.

Tech Stack: React, Redux, Next.js, Storybook,TypeScript, Tailwind CSS, Material-UI, WebRTC, Web3.js, Webpack, CanvasJS Chart, Node.js, ChatGPT, Jest, React Native, Firebase

Full-stack Engineer

05/2019 to 08/2021

Wee Bee Kids Inc

• Created frontend using figma design for mobile responsiveness.
• Led the development of a unified rich text editor that runs on mobile, desktop, and web for users.
• Developed a JavaScript-based image annotation app that runs on desktop and web, it also allows for re-editable PNGs/JPGs by storing vector annotation data in the image binary.
• Created a feature to present Angular-based pages in a full-screen auto-generated presentation with advanced user controls and layout options.
• Integrated a build pipelines of 5+ complex applications to reliably use common rich-text editing component.
• Developed a custom vector graphics library for use in annotating both bitmaps and PDFs.
• Implemented Microservices using a serverless framework.
• Developed a React Native mobile application and implemented a real-time messaging feature using WebSockets, ensuring seamless and instant communication between users.

Tech Stack: Angular, NgRx, Rx.js, EJ2, Tailwind CSS, PHP, MySQL, React Native, GraphQL

Front-end Developer

10/2017 to 04/2019

Homyse

• Worked on providing API endpoints with Node.js and MongoDB.
• Built from scratch admin platform for managing platform's database entities and users using React, Node.js, and Mongoose.
• Implemented complex UI components with React/TypeScript and SCSS.
• Improved the UX by creating several DnD-based components.
• Created mobile app and integrated with backend APIs using IONIC framework.
• Wrote scripts to use and manipulate data from various sources.

Tech Stack: TypeScript, React, Redux, Next.js, Tailwind CSS, Node.js, IONIC, REST API, Google Cloud Platform (GCP), WebSocket, Webpack, Mongoose, Jest