MOA
DemoA work tool for project conversations, tasks, and reports in one place.
AI and email integrations are simulated. Reports are saved in this browser. The demo is in Korean.
Dongsuk Ji — AI products, workflow automation, and websites
Dongsuk Ji · Developer / JI Lab
I build and run Preterview, Refmade, and FortuneLab. I also take on workflow automation and website projects.
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Korean · English · Japanese · Launched August 10, 2026
Preterview
Preterview is an interview and AI proficiency assessment service that helps from interview prep through hiring evaluation. Add a cover letter or portfolio and it returns scores by criterion and the sentences to fix first. The same documents and the job posting become interview questions, with follow-ups that track your answers.
preterview.comPlanning · Design · Development · Operations
What it does
Cover letter review
/cover-letterPaste the company’s question and your answer to get scores from five angles, each backed by a quote from your text. The most urgent fix comes with a free rewritten example. Available in Korean only.
Portfolio review
/portfolioUpload a PDF or images, or add a link, then add the job posting to have the portfolio reviewed against it. Scores and feedback are free once a day, a limit shared with cover letter review.
Mock interview
/interviewQuestions come from your own documents and the job posting. Answer by voice or text, including follow-up questions, and get feedback on each answer when the interview ends.
For schools and training programs
Schools and training programs sign up one cohort at a time. Students interview with their own portfolio and target job posting, and staff prepare advising sessions using each student’s report and a list of students who have no report yet. The first month is free.
Program detailsSaju service · 8 languages
FortuneLab casts the eight characters of a saju chart from the year, month, day, and hour of birth, then explains it in a nine-chapter reading that runs from personality to career, love, money, health, and ten-year luck cycles. A perpetual-calendar engine calculates the chart. The readings are written with AI assistance.
fortunelab.storePlanning · Development · Operations
8 languages
Japanese brings the most visits, so since September 27, 2026 the bare domain serves the Japanese edition. The other seven languages add a language code to the address.
Mac app · October 2026
Refmade
A Mac app for giving work to the Claude Code and Codex on your computer from a window instead of a terminal. What the AI is doing shows up in plain words and as a pixel office, and before it creates files or runs programs it asks first, so you answer with a button. The app itself sends none of your work anywhere.
Download for MacPlanning · Design · Development · Operations
How it works
- Install
Download the Apple silicon build from refmade.com and move it to Applications. It isn’t notarized by Apple yet, so the first time you open it, click “Open Anyway” in System Settings.
- Set up an AI
You need either Claude Code or Codex. If neither is there, the app walks you through installing one (one line pasted into Terminal), and sign-in finishes in your browser.
- Hand off work
Pick a folder and describe the job. Questions come up as cards you answer with a button, and the team option runs the job as plan, work, and review.
Roles and departments
In the office tab, each piece of work the lead hands out gets a team member from the matching department. Members who finish stay at their desks with a “Done” tag.
Lead
Planning
Development
Review
Revisions
Research
Strategy
Clone
Support
Work tools
Website development
Websites built around what your business needs
A manufacturer that takes quote requests and a brand preparing to sell abroad need different screens. We start by deciding what the site shows and which requests it collects, and then I build the pages and admin tools to match.
CASE&FIT
casenfit.comHard case imports · Custom foam inserts
- Detail pages for two case lines and foam cutting, with a spec card for each model
- Three photos and a maker video for each model
- Quote requests with drawings or photos attached (up to 50 MB per file)
LUCE
yourluce.comPorcelain and glass infuser brand
- English and Korean site with an age check
- Product catalog for infusers and accessories, priced in USD
- Admin screen for products, orders, shipping, and members
Daymoon
daymoon-pic-site.vercel.appPortrait photographer
- Four galleries: graduation, couple, friends, wedding
- A white layout where the photos come first
Air filter manufacturer · Founded 1993
- Korean, English, and Thai
- Product pages for ULPA, HEPA, MEDIUM, PRE, and CARBON filters
- Company, history, organization, and location pages
How it works
- Brief
We sort out by email what you do, what the site should show, and which requests it should collect: quotes, bookings, or orders.
- Structure
I plan the pages and copy, then show you a draft of the first screen.
- Build
Before launch, I click through the inquiry and order flows on desktop and phone.
- Launch
I connect the domain and HTTPS and add a sitemap and share images so the site is ready for search registration.
- Support
After launch, I keep handling copy changes and new features.
Features in use
| Feature | Used on |
|---|---|
| Quote form with file uploads | CASE&FIT |
| Admin screen | LUCE |
| Multiple languages | LUCE 2 · CTK 3 |
| Domain and HTTPS | casenfit.com · yourluce.com |
| Sitemap, share images, structured data | CASE&FIT · LUCE |
Helpful to include in your email
- What you do and your industry
- Pages and features you need (quote form, booking, languages, payments)
- Sites you like
- When you want to launch
- Materials you have (logo, photos, copy)
Ask about a website
A quote follows by email once the pages and features are clear.
Website development pageWork with me
What we can build together
I work with teams launching a new service or making everyday work easier.
I turn an idea into a working service, connecting user flows, AI features, accounts, payments, deployment, and operations.
Product planning · AI integration · Web apps · Deployment
I connect repetitive collection, organization, and publishing into one workflow. AI agents such as Claude Code and Codex split planning, work, and review, and a person checks the results and fixes only what needs it.
Data collection · Content publishing · AI agent workflows
I build websites that explain a brand and its products and lead to inquiries or bookings, with responsive layouts and search-friendly structure.
Brand & corporate sites · Portfolios · Inquiries & booking
Dongsuk Ji / Developer
From building games to building AI products.
I’m Dongsuk Ji, a developer with experience at LINE Games, GOLFZON, and Smilegate, where I also worked on AI transformation. Today I develop and operate Preterview, Refmade, and other services at JI Lab.
Development notesJI LabBuilding and running services · Now
Game development
Golf simulator development
Game development · AI transformationTech University of Korea · Game Engineering
Let’s talk
Project inquiries by email
Tell me about the problem you want to solve and where things stand. We can start by discussing how I can help.
Start a conversationAI products · Workflow automation · Websites