Here are a few articles I found discussing various resources for finding jobs in Korea and what to expect in Korea:
F-series Visa
The easiest way to get a non-teaching job as a foreigner is by having an F-series visa. Why is that? Because by having an F-series visa, you no longer need a visa sponsored by the company. This massively broadens your options of companies and job positions to apply to.
Unfortunately, getting that visa isnt easy.
Unless you get married to a Korean person, you usually need to have held onto a job (or several jobs in the same field) for a good while before you can qualify for one. So while it’s the easiest way to get a job in South Korea, it’s not an option for newbies.
Graduate from a Korean University
But while working in South Korea for foreigners can be more complicated without that F-series visa, it’s not impossible! Perhaps the second easiest way for a foreigner to get a job in South Korea is by graduating from a Korean university.
Recent college graduates and past alumni from universities, whether with a bachelor’s or master’s degree, can do this.
Immigration will be more lax on what kind of jobs you are qualified to apply for. In other words, you’re not strictly limited to only getting a job directly in the field of your university degree.
The only main restriction is that the company has to be able to provide you with visa sponsorship.
OTHER OPTIONS:
Apply for jobs in Korea from your home country
Find a company in your own country with branches in South Korea.
WHAT IS NEEDED:
Is speaking Korean necessary for work in Korea?
ANSWER: Most of the companies open to visa sponsorships for foreign employees are looking specifically for those that are fluent in languages other than Korean.
RESOURCES:
Where to find jobs in South Korea for foreigners?
JOB FAIRS
One of the quickest ways to find many companies at once is by attending a job fair.
There are two main job fairs arranged every fall. One is for foreign residents in South Korea, and the other is specifically for international students in South Korea.
JOB WEBSITES
Besides that, along with networking, there are also several websites out there through which you can find and apply for jobs. Here are a few great examples:
Craigslist Korea
This is a hit-or-miss type of job portal. However, the job advertisements are usually in English, and the employees sought after are foreigners. It may not be where you find your dream job, but it’s likely the least intimidating site to start with.
Saramin
Saramin is a website entirely in Korean, so it may be terrifying to navigate through at first. However, this is one of the main job portals for Koreans themselves to find a job, and there are plenty of jobs from different fields posted where they are looking for foreign language speakers.
JobKorea
Another job portal that is mainly used in Korea is JobKorea. Similar to Saramin, this website is purely in Korean. However, it’s a great site to explore for jobs as there are a lot of job postings, even for foreigners.
PeopleNJob
It is said to be the best job portal to find a job in South Korea for foreigners. It looks overwhelming at first glance, but you’ll be relieved to know that there is also an ample amount of jobs there posted in English.
LinkedIn
Unlike the other portals listed here, this is the main place where you can find all the big foreign companies looking for employees in their Korean branches. Companies have job postings all the time, and you can get notifications right on your phone, too!
Hirediversity
Hirediversity helps international students seeking jobs in Korea.
Incruit
Similarly to Saramin, Incruit offers you a variety of ways to find what you are looking for. You can use the salary calculator, research all the available positions for your interests, and it’s easy to apply for the job. If you have any questions or need information on how to apply and so on, just take a look.
Seoul Global Center (SGC)
This is your savior when it comes to searching for a job, program, or language course as a foreigner in Korea. You can get in touch with other foreigners by clicking the ‘foreign community’ button and looking for a job in the ‘job search’ section all at once in Seoul Global Center.
Worknet
What makes Worknet unique, except the fact that you can look for a job and get more information about the company and the position, is that they can actually help you find the best job for you based on your personality. On their website, you will find a variety of options to make a psychology test or career-orienting test both for adolescents and adults. This is why this website is perfect for any age.
Work Korea
Their website is in English which will make it easier for those of you who still don`t understand Korean that well. You can start your search by clicking on ‘Job Seekers’ and selecting your preferred region/city and job position.
Alba cheonguk
Looking for a part-time job that will fit into your already busy schedule? Alba is the perfect place for you. It allows you to look for an emergency part-time job or a short-term, part-time job. You can choose the option for ‘foreigner’ to make it even more suitable and easier to find what is best for you!
Albamon
Another excellent way to find a job is if you are a student or if you are interested in working for companies such as KFC, Subway, CJ Olive Young, McDonald's, and many more.
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Those are just a few of the many articles on this subject found online.
In short, there are many resources. These are only a handful of the thousands available. Also try "Monster Jobs" site for Korea job postings.
Happy job hunting! -Ben Arnold :-D