Looking for guidance on getting a Korean work visa as a software engineer

Hi everyone, I’m a software engineer currently exploring opportunities in South Korea, but I do not have a Korean work visa yet. I’m trying to understand the exact process for international developers who want to work there. I would appreciate guidance on a few points: • How do companies typically sponsor visas for foreign software engineers? • Which visa type is usually required for developers (for example E-7 or others)? • What documents and steps are involved in the process? • How long does the visa approval usually take? • Are there any specific job boards or companies in Korea that actively hire international engineers? If anyone has gone through this process or is currently working in Korea as a foreign engineer, your advice would be very helpful. Thanks in advance for sharing your experience.