Average Assembly Supervisor Salary in South Korea for 2026

How much does an assembly supervisor make in South Korea?

A typical assembly supervisor working in South Korea brings home around 1,770,091 KRW a month before tax. Entry-level pay starts near 10,415,900 KRW, and the top of the ladder reaches roughly 33,119,100 KRW for the most experienced and specialised people in the role.

The wide gap between low end and top end reflects how much pay can vary inside the same job title. A junior assembly supervisor working at a small local employer earns very different money from a senior at a multinational. Skills, employer, city and years in the seat all push the number around.

How assembly supervisor pay ranges in South Korea

A good way to think about salary in South Korea is to look at the distribution rather than the headline average. Half of all assembly supervisors in South Korea earn less than 21,719,900 KRW a year, and the other half earn more. That middle number is the median, and it is usually more useful than the average for answering "is my pay normal here".

Looking at the quartiles fills in the picture. A quarter of earners take home less than 14,400,800 KRW (the 25th percentile), and a quarter clear 27,960,400 KRW (the 75th percentile). The middle 50% of assembly supervisors sit somewhere inside that band, which is where the typical reader of this page probably lives.

The very lowest reported salaries sit around 10,415,900 KRW. The highest stretch to 33,119,100 KRW, though only a small fraction of earners ever reach that level. If you are deciding whether your own offer or current pay is reasonable, work out which of those four bands you would fall into and use that as your reference point.

Assembly supervisor pay by experience in South Korea

Years of experience is the single biggest lever on pay for an assembly supervisor in South Korea, ahead of education and almost any other single factor. The longer you have been in the role, the more your employer can trust you to handle complexity, mentor others and act independently, all of which command higher pay. The chart below shows how the typical assembly supervisor salary changes as you move through the career ladder.

The single largest jump on the ladder is from 2 - 5 Years to 5 - 10 Years, where pay rises by about 38%. That is the point at which a assembly supervisor typically goes from "competent in the role" to "the person other people in the team learn from", and the market pays well for that step.

Assembly supervisor pay by education in South Korea

Education sits alongside experience as one of the biggest factors driving assembly supervisor pay in South Korea. Higher qualifications consistently pull higher salaries, but the size of the gap tends to be smallest at junior levels and widens as people move up. Two people in the same role with the same years of experience but different degrees can end up earning very different money once they reach mid-career.

Below is the average assembly supervisor salary in South Korea broken down by the highest level of education a worker has completed.

Assembly supervisor gender pay gap in South Korea

The gender pay gap is a stubborn feature of almost every labour market, and South Korea is no exception. Male assembly supervisors in South Korea earn an average of 21,841,900 KRW a year, while female assembly supervisors earn around 20,518,900 KRW. That works out to a 6% gap in favour of men, even when comparing people doing the same work.

A pay gap of this size has a real long-term cost. Over a typical thirty-year career it can add up to several years of pay, and it compounds through pensions, retirement contributions and bonus-linked stock. Some of the gap is explained by women being more likely to work part-time, take career breaks, or be steered toward lower-paying specialisations. Some of it is straightforward unequal pay for the same job, which is harder to defend.

Pay raises for an assembly supervisor in South Korea

Most countries hand out at least some kind of pay raise every year, typically when an employee's contract is reviewed or as a cost-of-living adjustment to keep wages roughly in step with inflation. The rhythm and size of those raises varies hugely between industries.

A typical worker doing this role in South Korea sees a raise of about 9% every 18 months, which works out to roughly 6% on an annual basis. That figure is the typical underlying rate; in years where inflation runs high you can usually expect a bit more, and in flat-economy years a bit less.

Across all jobs in South Korea, the national average raise is around 9% every 16 months.

By industry

Industries with the highest pay raises in South Korea:

By experience level

Experienced workers tend to see larger raises. Retaining a senior is cheaper than replacing them, so employers fight harder for them.

Assembly supervisor bonus rates in South Korea

Bonuses are the other half of total compensation, and they vary a lot between jobs and industries. Some roles are paid almost entirely in base salary; others lean heavily on bonus structures tied to revenue, project completion or company performance. Whether a job pays a bonus, how big it is, and how often it lands all factor into whether the headline salary is actually a good offer.

Which careers pay bonuses in South Korea

Revenue-facing roles tend to pay the biggest bonuses. Operational and support roles tend toward smaller, more predictable ones.

Assembly supervisor: public vs private sector pay

Public-sector pay in South Korea is about 6% more than private-sector pay for similar work. The private sector typically offers stronger upside and bigger bonuses; the public sector typically offers better benefits and stability.

Assembly supervisor salary by city in South Korea

Assembly supervisor pay is not even across South Korea. The chart below shows the highest-paying cities in the dataset, followed by the full location table.

Similar jobs to an assembly supervisor

Other jobs in the same category as an assembly supervisor in South Korea.

Assembly Supervisor in South Korea: FAQs