AI Product Engineer at Swingvy

Building Products End-to-End with AI

I orchestrate AI agents to build complete products — from ideation and planning through architecture, development, QA, and deployment. What once required a full team, I deliver as a one-person product team.

Real-world Results

Featured Projects

See how I transformed concepts into engaging digital experiences.

Swingvy•2024

AI based Q&A system(RAG)

Develop a system to answer questions based on Singapore's labour laws
GCP + LLM (Google Gemini) + Document based search
RAG(Retrieval augmented generation)

Swingvy•2021-2026

Leave server API

Responsible for developing API for Leave server that provides annual leave application/approval function for Swingvy customers
Spring Boot 2 / JPA / Spring Cloud / TDD

Swingvy•2020-2021

Time&Attendance server API

I was in charge of developing Swingvy Time, a service that allows Swingvy customers to manage their attendance.
Spring Boot 2 / JPA / Spring Cloud / GraphQL

Swingvy•2018-2019

Employee Benefits server API

I participated in the development of the Swingvy Benefits service from start to finish, which allows Swingvy users to easily purchase insurance with just a few clicks, targeting Malaysia and Singapore.
Spring Boot 2 / JPA / Spring Cloud / Kotlin / TDD (Test coverage: +80%)

Swingvy•2017

MSA Migration

Led a project to transform a single Spring Boot-based web service into a Microservice Architecture using Spring Cloud. Responsible for modifying the system from a single server to three servers working organically together.
Spring Boot 1.5 / Spring Cloud (Spring Cloud Netflix)

Swingvy•2017-Present

DevOps

Responsible for migrating and maintaining all company infrastructure to AWS
ECS, RDS, ElastiCache, Lambda, ELB(ALB), CloudFront, ALB
Set up and operated company build servers using Jenkins

Line Plus•2014-2016

Line Rangers server API

Responsible for developing Backend API for Line Rangers mobile game, which recorded over 10 million downloads
Spring Framework / MyBatis / Redis

Our Experience

Companies I’ve Worked With

Explore the innovative companies where I have contributed my expertise and passion.

NAVER

Intern

2013.06 - 2013.12

NAVER is South Korea's largest internet company, operating the country's most popular search engine and web portal. The company provides a wide range of online services including email, news, shopping, and digital payments, while also achieving global success with innovative services like NAVER Webtoon and LINE messenger

LINE PLUS

Back-end engineer

2014.02 - 2016.10

LINE is broadening its range of mobile-first services to include lifestyle, fintech, Web3, contents, e-commerce, gaming, entertainment, AI, and more.

SWINGVY

Back-end Engineer → AI Product Engineer

2016.10 - Present

Swingvy is a cloud-based HR platform serving businesses across Asia Pacific. Starting as a back-end engineer, I evolved into an AI Product Engineer — now orchestrating AI agents to single-handedly build products from ideation to deployment, covering the full lifecycle that traditionally required cross-functional teams.

NAVER

Intern

2013.06 - 2013.12

LINE PLUS

Back-end engineer

2014.02 - 2016.10

LINE is broadening its range of mobile-first services to include lifestyle, fintech, Web3, contents, e-commerce, gaming, entertainment, AI, and more.

SWINGVY

Back-end Engineer → AI Product Engineer

2016.10 - Present

About Me

A Glimpse Into My World

Explore the technologies I use as a developer and the tools and services I leverage to enhance productivity.

My Techs

JavaScript(TS)

React

Tailwind CSS

Java

Kotlin

Python

Spring Framework

Spring Boot

Next.js

MacOS

AWS

GCP

Langchain

Docker

FastAPI

IntelliJ

Visual Studio

Claude

Claude Code

Gemini

Google Analytics

Vercel

Node.js

Git

GraphQL

Jupyter

MySQL

MariaDB

PostgreSQL

Redis

Prisma

Webflow

Framer

Slack

JavaScript(TS)

React

Tailwind CSS

Java

Kotlin

Python

Spring Framework

Spring Boot

Next.js

MacOS

AWS

GCP

Langchain

Docker

FastAPI

IntelliJ

Visual Studio

Claude

Claude Code

Gemini

Google Analytics

Vercel

Node.js

Git

GraphQL

Jupyter

MySQL

MariaDB

PostgreSQL

Redis

Prisma

Webflow

Framer

Slack

JavaScript(TS)

React

Tailwind CSS

Java

Kotlin

Python

Spring Framework

Spring Boot

Next.js

MacOS

AWS

GCP

Langchain

Docker

FastAPI

IntelliJ

Visual Studio

Claude

Claude Code

Gemini

Google Analytics

Vercel

Node.js

Git

GraphQL

Jupyter

MySQL

MariaDB

PostgreSQL

Redis

Prisma

Webflow

Framer

Slack

JavaScript(TS)

React

Tailwind CSS

Java

Kotlin

Python

Spring Framework

Spring Boot

Next.js

MacOS

AWS

GCP

Langchain

Docker

FastAPI

IntelliJ

Visual Studio

Claude

Claude Code

Gemini

Google Analytics

Vercel

Node.js

Git

GraphQL

Jupyter

MySQL

MariaDB

PostgreSQL

Redis

Prisma

Webflow

Framer

Slack

How I Work

As an AI Product Engineer, I act as a conductor orchestrating AI agent teams. I define what to build, structure the work with detailed documents, and let AI handle the execution — from code generation to testing. The quality of my documents determines the quality of the output.

In an Era of AI-Written Code, How Should a Developer's Role Evolve?

The era where AI development workflow is commonplace has arrived. I'd like to discuss how developers should embrace this period when AI writes source code.

Nov 8, 2025

Building Products End-to-End as a One-Person Team

I share my experience building products solo as an AI Product Engineer without a PM, Designer, or QA. Here is a candid account of what went well and what was difficult.

Dec 22, 2025

BITS OF CONVERSATION

Debug Together, Build Together

From code reviews to coffee chats, I'm here to explore ideas, tackle challenges, and maybe fix that semicolon that's been bothering you!

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