How do companies usually find IT freelance in Korea?

I’m part of an outsourcing company that handles on‑site IT support for clients in South Korea, and lately we’ve been struggling to find local freelance engineers for short dispatch tasks.

We’re trying to understand the best way to reach technicians who do Level 1 desktop support work — especially in areas like Seoul where our clients often need on‑site help.

For those familiar with the Korean tech job market:

• Where do freelance IT engineers usually look for short‑term or dispatch‑based work?

• Are there specific platforms, communities, or Korean‑language sites that are more effective than LinkedIn?

• Any tips for connecting with local talent would be appreciated.

Not posting a job here — just trying to understand how companies typically find people for these roles in Korea.