Hi, I'm Phat

Fullstack Engineer

High level experience in web development and producing quality work.

About Me

My introduction

Fullstack developer, with extensive knowledge and years of experience, working in frontend + backend technologies, delivering quality work. I have a strong knowledge of Javascript, Typescript, ReactJS, NextJS, NodeJS.

04+

Years experience

Companies worked

Completed projects

Download CV

Skills

My technical level

NodeJS

NestJS

ExpressJS

MongoDB / MySQL / PostgreSQL

Qualifications

My personal journey

Associate Software Engineer

Terralogic

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Mar 2022 - Oct 2022

ReactJS Developer for outsourcing project developing internal tool for Cisco clients.
Built user interface for the system using Ant Design and structured the codebase.
Integrated APIs from Cisco Back-End team and handled logic to generate Python code.
Managed project state using Redux for efficient state management.

Backend Engineer

Vela Corporation

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Oct 2022 - Dec 2023

Developed Vela One system (full-service commercial operation) by implementing 3 highly efficient back-end services based on modular monolith architecture.
Structured codebase for management component within VelaOne ecosystem, ensuring system-wide information organized based on Single Source of Truth concept.
Applied and organized multi-tenant SaaS architecture to the Vela One system.
Ensured all API URLs conformed to REST architectural style.

Backend Engineer

Orbit Technology

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Mar 2024 - Sep 2024

Architected Ton Holding platform (Telegram mini-game + TON investment) with a modular monolith for scalability.
Built full backend with NestJS and optimized MySQL schema (structure, indexes, relationships).
Integrated Telegram API and Ton Keeper wallet for authentication and on-chain transactions.
Developed real-time socket service and core feature APIs (leaderboard, check-in, tasks, invites, energy, point history).
Implemented TON investment/commission logic (binary-tree network, dynamic programming payouts, secure TON withdrawals).
Containerized and deployed the system on AWS EC2 with production-ready Docker configs.

Fullstack Engineer

Kicksplanet

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April 2022 - Jun 2025

Structured and organized the codebase for maintainability, consistency, and scalability.
Standardized RESTful APIs and implemented secure token-based authentication.
Built core business modules and scheduled cron jobs for automated operations (sync, data updates).
Integrated Elasticsearch to improve search performance and querying.
Used AWS S3, CloudWatch, Parameter Store for storage, monitoring, and configuration management.
Integrated third-party APIs (Giaohangtietkiem, SpeedSMS) for logistics and SMS/OTP.
Built admin dashboard UI with Mantine UI; integrated APIs via React Query and managed global state with React Context.

Fullstack Engineer

TAPTAP

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Sep 2024 - Jun 2025

Developed TAPTAP Affiliate feature — large-scale loyalty platform for receipt scanning and reward redemption.
Architected backend infrastructure with NestJS, optimized MongoDB schemas for millions of transactions and high-volume receipt processing.
Implemented Redis caching and Bull Queue for asynchronous processing, improving throughput under heavy concurrent load.
Built secure, scalable RESTful APIs with full documentation for seamless merchant partner integration.
Developed responsive Affiliate & OTA Configuration dashboard with ReactJS for CMS management.
Integrated backend APIs ensuring real-time synchronization of merchant configurations, affiliate rules, and reward data.

Fullstack Engineer

Salescore Co.

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Jun 2025 - Present

Built entire KpopRoad ecosystem including Telegram tap-to-earn game, Vote, NFT Collection, KLove Pet, Picasso, Ubello Super App, and TheRowd Funding platform.
Designed system architecture for multiple Web3 products ensuring scalability, modularity, and maintainability.
Developed UI/UX for landing pages and cross-platform mobile applications.
Integrated third-party services (Moralis) for token info, balances, network metadata with optimized request patterns to reduce costs.
Utilized Web3, Ethers.js for on-chain interactions; built backend APIs for wallet functions (networks, balances, tokens, operations).
Developed blockchain webhook services for transaction confirmations and payment processing.
Implemented real-time notification APIs using Firebase Cloud Messaging (FCM).
Built core wallet features in Ubello Super App: non-custodial wallets, biometric login (FaceID), seed phrase import, secure backup/recovery.
Wrote Dockerfile and Docker Compose configurations; collaborated with DevOps for multi-environment deployment.