Based on the level of respect or formality, you can say "I am a ticket examiner." in Korean in 3 ways:

• Informal: na-neun gaepyowon-iya. (나는 개표원이야.)
• Formal: na-neun gaepyowon-iyeyo. (나는 개표원이예요.)
• Very formal: jeo-neun gaepyowon-imnida. (저는 개표원입니다.)