# YuLim Choi

YuLim Choi is a remote worker on Himalayas, Frontend Developer at Clap, based in South Korea.

Source: https://himalayas.app/@yulimchoi

```text
Full-stack developer at Clap who contributed to 20+ review workflow features and built an appeals flow in 52 PRs.
```

| Detail | Value |
| --- | --- |
| Availability | Looking for a job |
| Location | South Korea |
| Authorized to work in | South Korea |
| Salary expectations | 59970k+ KRW |
| Job categories | Full Stack Developer, Front End Developer, Backend Engineer |
| Skills | Fullstack Development, Frontend Development, Backend Development, Web Application Development, REST API Design, Database Design, Payment Integration, Responsive Design, React, TypeScript, NodeJS, NestJS, Next.js, Redux, React Query |
| Website | https://portfolio-yulim-xi.vercel.app |
| Portfolio | https://portfolio-yulim-xi.vercel.app |
| LinkedIn | https://linkedin.com/in/yulimchoi |

## About

```text
At Clap, I contributed to more than 20 features across core review workflows, including a three-step appeals flow delivered in 52 PRs over about four weeks. I also reorganized around 20 TanStack React Query keys into a domain-based hierarchy to make cache invalidation predictable.

At Pandarank, I built the influencer campaign service solo, from ERD design through launch, and integrated Naver Pay while reworking checkout alongside Naver's QA team. I also migrated the frontend from HTML and jQuery to Next.js.

At CRAA, I built the frontend and backend for four portals for a global pharmaceutical company. The work included live exam screen recording with chunked uploads and retries, as well as a video lecture system with quizzes and subtitles.

I also build and run my own products. With IVITE, I created a mobile wedding invitation service with two invitation formats, support for four languages, RSVP management, and Korean and international payments; with DICE TO MEET YOU, I built a platform connecting TTRPG players and game masters, including recurring billing and payment retries.
```

## Experience

### Frontend Developer

Clap. Oct 2024 - Oct 2026

```text
Contributed to 20+ features across core review workflows in React and TypeScript, including multi-step workflows and an appeals flow. Mentored teammates and handled QA and production issues.
```

Skills: React, TypeScript, React-Query, i18n

### Full-Stack Web Developer

Pandarank. Jul 2023 - Sep 2024

```text
Integrated Naver Pay and reworked checkout flow, built influencer campaign service solo, migrated frontend to Next.js, and set up CI/CD.
```

Skills: Next.js, NodeJS, MongoDB, AWS

### Full-Stack Web Developer

CRAA. Aug 2022 - Jun 2023

```text
Built frontend and backend of four portals with React, NestJS and MongoDB for a global pharmaceutical company. Implemented live screen recording and video lecture system.
```

Skills: React, TypeScript, Next.js, NestJS, MongoDB, AWS

### Frontend Web Developer

Geomexsoft. Aug 2021 - Jun 2022

```text
Built nurse station dashboard with live video monitoring and real-time alerts for an AI patient safety system. Built cloud web frontend for construction measurement system.
```

Skills: Svelte, JavaScript

### Backend Web Developer

Ilsong Info. May 2021 - Aug 2021

```text
Built sign-up, login, boards and identity verification.
```

Skills: Java, Spring-Framework, MySQL

## Education

### Korea IT Academy

Diploma, Information Technology. 2019 - 2021

```text
Studied Java, DBMS, Linux, networking, information security, and web development.
```

### University of the Philippines

Bachelor's Degree, Forestry. 2015 - 2016

```text
Pursued a degree in Forestry, currently on leave.
```

### South Hill School

High School Diploma, General Studies. 2011 - 2015

```text
Completed secondary education.
```

## Tech stack

- GitHub
- GitHub Actions
- Sass
- MySQL
- PostgreSQL
- MongoDB
- Node.js
- Spring
- Next.js
- NestJS
- Yarn
- React
- Svelte
- React Query
- Webpack
- JavaScript
- HTML5
- Java
- Linux
- PayPal
- Redux
- Vercel
- TypeScript
- Git
- npm
- Turso
- Lemon Squeezy
- Vite
- Claude Code
- Express
- AWS
- CSS3

To contact YuLim, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire).

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