Hải Võ (Ethan Vo)

Web Developer

HCMC, Vietnam

Summary

Full-stack web developer with 7+ years of experience building and maintaining production systems in e-commerce, fintech, HR, and education domains. Primary stack: Golang + React backed by PostgreSQL, deployed on Docker Swarm with CI/CD pipelines. Comfortable working as a solo contributor or in small cross-functional teams; frequently takes on sub-lead responsibilities including task breakdown, code review, and deployment management.

Skills

Languages & Frameworks

Techstack: Golang , JavaScript/TypeScript (React, Next.js) , PHP (Laravel, Magento 2.3) , HTML/CSS , Tailwind CSS , Astro

Databases

Techstack: PostgreSQL , MySQL , MongoDB , BigQuery

Infrastructure

Techstack: Docker Swarm , Docker , Nginx , AWS , GCP , CI/CD (GitHub, GitLab, Bitbucket) , Git

Dev Tooling & Harness

Techstack: VS Code , Kilocode (AI agent) , Bash CLI (harness env) , Postman , Chrome DevTools

Mobile & Others

Techstack: Flutter (cross-platform Android/iOS) , Grafana k6 (load testing) , Kubernetes

English: TOEIC 750/990 — functional working proficiency (daily written, conversational, good listening)

Work Experience

FullStack Developer

@ Product Co. (Fintech)

Mar 2023 - present

Across all projects: Git management, server deployment, code review, cross-functional collaboration.

Marketing CDP System (Oct 2023 - present)

E-com conversion SaaS: rule-based engine for promotional/retention pop-ups.
Achieved 20% abandoned-order recovery.
Stack: Golang , React , Docker Swarm , iNet/BytePlus (cloud service)

Loan Matching Platform (Mar 2024 - present)

Fintech user platform: pre-approve APIs, Smart Matching borrower <-> product, Reward Wallet ecosystem.
Stack: Golang , React , Docker Swarm , iNet/BytePlus (cloud service) , MongoDB

Loan/Credit Card Portal (Mar 2024 - present)

Maintain a system that shows, compares loans, credit cards and best offers on the Vietnamese market.
Track affiliate link clicks and sync data to BigQuery for data analysts.
Technologies: Laravel , Next.js , GCP , FCM , GitHub CI/CD , Groovy (Java) , MongoDB
Team: 4 members (sole developer).
Responsibilities: clarify requirements with manager, implement and maintain features, research and propose technical solutions, optimize website performance.

Affiliate Platform (Aug 2024 - present)

Affiliate marketing platform connecting 20+ financial partners; AMS onboarded 300+ agents in 2 months.
Integrated AccessTrade and Permate APIs; architected workflows (APIs, MMPs).
Stack: Laravel , Groovy , Vue.js , GCP + K8s , MongoDB , BigQuery

Motor Commerce Site (Mar 2025 - Sep 2025)

Shopify to WordPress migration; lead distribution to 40+ stores nationwide.
Coordinated outsource team for ERA launch; Agile/Scrum.
Stack: WordPress , Vietnix (VPS)

Local-Driver Affiliate Platform (Aug 2025 - Sep 2025)

Affiliate system for a resort brand (Sapa & Mộc Châu): local drivers act as referral channel via Zalo-delivered QR codes; each QR embeds a ref code that attributes the ticket order and grants the customer a discount while the driver earns a bonus.
Delivered end-to-end: 4 services — Golang REST API, React admin console, React client storefront, Zalo Mini App (ZMP) for drivers.
Stack: Gin-gonic (Go) , GCP/GKE , PostgreSQL , Redis , FCM , Zalo Mini App (ZMP) , React

Loyalty SaaS System (Jan 2026 - Jul 2026)

Zalo Mini-App loyalty platform: AI Invoice OCR for POS/e-com order matching.
10% anonymous-buyer identification rate; ZNS remarketing automation.
Stack: Golang , React , Docker Swarm , iNet/BytePlus (cloud service)

FullStack Developer / Sub-Lead

@ Outsource Co. (VN)

Oct 2023 - Mar 2024

Across all projects: Git management, server deployment, code review, teammate support.

HR Management System (Jan 2024 - Mar 2024)

Build a system to display staff info and monthly time logs, sourced from Jira's database.
Technologies: Laravel , React.js , AWS , GitHub CI/CD
Team: 4 members; sub-lead role - elaborate tasks & solutions.

E-Learning Platform (Oct 2023 - Mar 2024)

Maintain a system for students to learn, complete exercises, and purchase learning packages. Parents track children's progress. Integrated AI chatbot for learning support.
Technologies: Laravel , React.js , AWS , Docker , GitLab CI/CD
Team: 4 members + freelancers; full-stack development.

FullStack Developer

@ Outsource Co. (EU)

Jun 2023 - Oct 2023

Hotel Booking System (Jun 2023 - Oct 2023)

Build a system for renting properties, hotels, and rooms.
Technologies: Shopify , Laravel , React.js
Team: 3 members; work directly with client to elaborate tasks & solutions, develop BE/FE (UI, API calls, cron jobs, CRUD).

FullStack Developer

@ Outsource Co. (EU)

Jun 2021 - Mar 2023

Laptop Rental Platform (Jan 2022 - Mar 2023)

Build a system to rent, manage, and diagnose laptops for schools.
Technologies: Laravel , React.js
Team: 3 members.
Responsibilities: work directly with client (Netherlands) to elaborate tasks & solutions, develop BE/FE (UI, API calls, cron jobs, CRUD), review code, support teammates.

Internal Magento Payment Plugin (2 months)

Build a payment plugin for Magento, intended for sale on the marketplace.
Technologies: Magento 2.4
Team: solo.
Responsibilities: clarify requirements, evaluate effort, read Tinka payment gateway API docs, implement and fix bugs.

B2B Coffee Marketplace (7 months)

Build a connection platform between African farmers and merchants for coffee & tea.
Technologies: Laravel 8 (Bagisto e-commerce platform) , React.js
Team: 6 members.
Responsibilities: customize order-related flows to meet client requirements, fix bugs, customize APIs for apps, read codebase and document project architecture.

Magento Backend Developer

@ Outsource Co. (SEA)

Jan 2020 - May 2021

Thailand eCommerce Storefronts (Jan 2020 - May 2021)

Across 3 projects (Thailand eCom Storefront, Thailand eCom Storefront, Thailand eCom Storefront) delivered Magento 2.3 backend customizations.

Technologies: Magento 2.3 , Docker , SFTP , GTM , GA

Configured multi-website Magento 2 on Docker and local machines.
Added filterable product attributes (decimal type, similar to price filter).
Created best-seller listing pages with pagination.
Implemented checkout shipping address auto-fill; saved/created customer profiles for repeat checkouts.
Built admin UI components: tree-like category chooser.
Customized Google/Facebook API extensions; configured and tested GTM, GA, Google feed, FB pixel.
Created cron jobs to sync CSV data to SFTP servers and synced back to update order status.

Projects (Side Projects)

Workflow Optimization

Jul 2025

Explored an AI-assisted coding stack end-to-end. Studied the Kilocode agent source to understand the workflow, then used GoModel as a self-hosted LLM API proxy to log and inspect system prompts and token usage per call. Goal: understand the workflow and optimize token usage.

Technologies: VS Code , Kilocode (AI agent) , Github: ENTERPILOT/GoModel (LLM API proxy)

Network Protocol Analysis of Zalo

Jun 2025

Intercepted and analyzed mobile app traffic patterns using proxy-based methodology.

Technologies: Burp Suite , AndroidPcap

Load Testing with k6

Apr 2025

Built to load-test demo projects; evaluated new tech stacks for performance. Chose k6 over JMeter for JavaScript scripting and CI/CD integration.

Technologies: Grafana k6

Source: GitHub: load-tester

Kubernetes Demo

Mar 2025

Demo application showcasing Kubernetes strengths: scaling, rolling updates, service discovery.

Technologies: Kubernetes , Docker

Source: GitHub: k8s-demo

Mongo-BigQuery Datasync

Feb 2025

Rebuilt a system syncing MongoDB to BigQuery, replacing a previous Java implementation. Adopted functional programming practices; implemented Manager-Worker and Poll-Queue-Concurrency patterns.

Technologies: Golang , Docker

Team: 3 members (1 developer).

Info Web

Oct 2024

UI/UX overhaul and codebase modernization.

Technologies: Tailwind CSS , Next.js

Team: 7 members (4 developers).

Responsibilities: led UI/UX overhaul, refined code structure, implemented Tailwind CSS for responsive styling, collaborated in cross-functional team.

Flutter Demo App

Sep 2024

Built Android demo app to provide insights for BOD. Evaluated mobile tech options (Kotlin/Java, Flutter, React Native) based on cost, HR, timeline, performance, maintenance, support, future.

Technologies: Flutter

Team: solo.

Cashback Fintech System

May 2024 - Jun 2024

Built from scratch: in-app webview to showcase products (including affiliate links). Chose Golang for low memory footprint, React for speed (SEO not a priority), MongoDB for flexibility, Docker to match company's GCP ecosystem.

Technologies: Gin-gonic (Go) , React.js , MongoDB , Docker

Team: 3 members (1 developer).

Responsibilities: research & propose technical solution, manage Git & server deployment.

My Personal Site

Jan 2024

Portfolio page with focus on performance and SEO. Evaluated Hugo, Next.js/Vite+React, then chose Astro for SSG, lightweight templating, and React-like syntax. Integrated a Go-based service calling Gemini API to refine content for IT recruiters. Visit at: flyinghii.github.io

Technologies: Astro , Go , GitHub Pages

Education

Bach Khoa University (HCMUT) (Sep 2014 - Jan 2019)

Major: Electronics and Telecommunications Engineering.

Licenses & Certifications

TOEIC 750/990 - IIG (2019 - 2021)

Interests

Cybersecurity - OSINT - System design.
Performance optimization - AI tooling - CS fundamentals & DSA.