Doan Van Trung — Senior Fullstack Developer

01 — About

Building products, leading teams

Senior Fullstack Developer with 7+ years of experience building scalable web applications and enterprise systems. I design software architecture, RESTful APIs, and cloud infrastructure on AWS, and I enjoy leading teams — mentoring engineers, reviewing code, and working closely with product owners in Agile environments. Recently focused on AI-powered applications, payment systems, and performance optimization.

Years of experience: 7+
Production systems delivered: 10+
Engineers led & mentored: 5

02 — Skills

The tools I reach for every day

Backend

PHP / Laravel RESTful API Auth & Authorization Swagger / OpenAPI Queues & Schedulers Webhooks SQL Optimization

Frontend

Vue.js / Nuxt.js React / Next.js TypeScript JavaScript (ES6+) Tailwind CSS SCSS Responsive Design

Database

MySQL PostgreSQL Firebase Firestore

Cloud & DevOps

AWS EC2 · RDS · S3 · CloudFront ALB · Auto Scaling Docker Nginx CI/CD · GitHub Actions Linux

Integrations

OpenAI API Stripe Apple / Google In-App Purchase Square OAuth Firebase Push Notifications

03 — Experience

Nearly 7 years of shipping enterprise products

2019 — Now

Tech Lead · Fullstack Developer

Fabbi Research & Development JSC — Hanoi

—Designed system architecture, database schemas, and RESTful APIs for enterprise products across HRTech, FinTech, Booking, E-commerce, and AI domains.
—Built end-to-end features with Laravel, Vue.js, Nuxt.js, and Next.js — frontend, backend, CMS, and third-party integrations.
—Integrated payment gateways (Stripe, Apple IAP, Google Play Billing, Square) and AI features powered by OpenAI APIs.
—Managed AWS infrastructure (EC2, RDS, S3, CloudFront, ALB, Auto Scaling) with Docker-based deployments.
—Led a team of up to 5 engineers — sprint planning, code reviews, mentoring, and technical decision-making.

2019

PHP Developer (Fresher)

OWS JSC — Hanoi

—Developed backend features and RESTful APIs with PHP (CodeIgniter).
—Built responsive UIs with HTML5, CSS3, JavaScript, and Bootstrap.

04 — Projects

Selected production systems

Team Leader · Senior Fullstack

AI Horoscope Platform

AI-powered astrology platform with personalized horoscope analysis, subscriptions, affiliate marketing, and QR campaigns. Led backend architecture and the OpenAI integration workflow.

Laravel · Vue.js · Nuxt.js · OpenAI · AWS · Docker

Fullstack Developer

Racool — Plantation Management

Agricultural operations platform for a Japanese client: production tracking, workforce management, and real-time disaster alerts, delivered in a 20-person team.

Laravel · Vue.js · MySQL · AWS ECS · CloudFront

Backend Lead

Toshi no Senpai

Paid investment-information service for Japanese stock investors. Designed the backend architecture and built subscription & payment modules.

Laravel · Stripe · In-App Purchase · MySQL · Firebase

Fullstack Developer

Smart Gym Management Platform

Gym platform with QR-code smart lock access control, trainer booking, membership management, and mobile APIs — integrated with RemoteLock and Stripe.

Laravel · MySQL · Firebase · RemoteLock · React Native

Fullstack Developer

AutoStyle E-commerce

E-commerce platform for automotive accessories with supplier & inventory management and multi-channel sales across Yahoo Shopping and Rakuten.

Laravel · Nuxt.js · Vue.js · PostgreSQL

Fullstack Developer

Renew ECS — Enterprise System

Internal enterprise management system for employee operations, workflow approvals, and asset administration. Migrated a legacy frontend to Next.js.

Laravel · Next.js · React · MySQL

05 — Contact

Let's work together

I'm open to Senior Fullstack Developer and Tech Lead opportunities. The fastest way to reach me is by email or phone.

trungdv171296@gmail.com 0818 029 694 github.com/trungdv96